added Revit 2020 SDK files

SDK/Samples/FoundationSlab/CS/Command.cs

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+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM 'AS IS' AND WITH ALL ITS FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable. 
+//
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using Autodesk.Revit;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.FoundationSlab.CS
+{
+    /// <summary>
+    /// Implements the Revit add-in interface IExternalCommand
+    /// </summary>
+    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
+   [Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
+    [Autodesk.Revit.Attributes.Journaling(Autodesk.Revit.Attributes.JournalingMode.NoCommandData)]
+    public class Command : IExternalCommand
+    {
+        #region IExternalCommand Members Implementation
+        /// <summary>
+        /// Implement this method as an external command for Revit.
+        /// </summary>
+        /// <param name="commandData">An object that is passed to the external application 
+        /// which contains data related to the command, 
+        /// such as the application object and active view.</param>
+        /// <param name="message">A message that can be set by the external application 
+        /// which will be displayed if a failure or cancellation is returned by 
+        /// the external command.</param>
+        /// <param name="elements">A set of elements to which the external application 
+        /// can add elements that are to be highlighted in case of failure or cancellation.</param>
+        /// <returns>Return the status of the external command. 
+        /// A result of Succeeded means that the API external method functioned as expected. 
+        /// Cancelled can be used to signify that the user cancelled the external operation 
+        /// at some point. Failure should be returned if the application is unable to proceed with 
+        /// the operation.</returns>
+        public Autodesk.Revit.UI.Result Execute(ExternalCommandData commandData, ref string message, Autodesk.Revit.DB.ElementSet elements)
+        {
+            try
+            {
+                // Check commandData parameter.
+                if (null == commandData)
+                {
+                    return Autodesk.Revit.UI.Result.Failed;
+                }
+
+                SlabData revitDatas = null;
+                try
+                {
+                    // The Datas for UI.
+                    revitDatas = new SlabData(commandData.Application);
+                }
+                catch (NullReferenceException e)
+                {
+                    message = e.Message;
+                    return Autodesk.Revit.UI.Result.Cancelled;  // Data error.
+                }
+                // Display form.
+                using (FoundationSlabForm displayForm = new FoundationSlabForm(revitDatas))
+                {
+                    if (displayForm.ShowDialog() == System.Windows.Forms.DialogResult.OK)
+                    {
+                        return Autodesk.Revit.UI.Result.Succeeded; // Create foundation slabs successfully.
+                    }
+                }
+                return Autodesk.Revit.UI.Result.Cancelled;  // Cancel creation.
+            }
+            catch (Exception e)
+            {
+                message = e.Message;
+                return Autodesk.Revit.UI.Result.Failed; // Unknow error.
+            }
+        }
+        #endregion IExternalCommand Members Implementation
+    }
+}

SDK/Samples/FoundationSlab/CS/FoundationSlab.addin

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+<?xml version="1.0" encoding="utf-8"?>
+<RevitAddIns>
+  <AddIn Type="Command">
+    <Assembly>FoundationSlab.dll</Assembly>
+    <ClientId>1efe6d77-3894-41f3-b56c-882a8bea5b40</ClientId>
+    <FullClassName>Revit.SDK.Samples.FoundationSlab.CS.Command</FullClassName>
+    <Text>Foundation Slab</Text>
+    <Description>Convert regular floors at the base of the building to octagonal slabs.</Description>
+    <VisibilityMode>AlwaysVisible</VisibilityMode>
+    <VendorId>ADSK</VendorId>
+    <VendorDescription>Autodesk, www.autodesk.com</VendorDescription>
+  </AddIn>
+</RevitAddIns>

SDK/Samples/FoundationSlab/CS/FoundationSlab.csproj

@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>9.0.30729</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{53D3114D-D1C7-4C70-825B-CA28AE8FFE1D}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Revit.SDK.Samples.FoundationSlab.CS</RootNamespace>
+    <AssemblyName>FoundationSlab</AssemblyName>
+    <SignAssembly>false</SignAssembly>
+    <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodeAnalysisRules>-Microsoft.Globalization#CA1301;-Microsoft.Globalization#CA1302;-Microsoft.Globalization#CA1303;-Microsoft.Globalization#CA1306;-Microsoft.Globalization#CA1304;-Microsoft.Globalization#CA1305;-Microsoft.Globalization#CA1300;-Microsoft.Interoperability#CA1403;-Microsoft.Interoperability#CA1406;-Microsoft.Interoperability#CA1413;-Microsoft.Interoperability#CA1402;-Microsoft.Interoperability#CA1407;-Microsoft.Interoperability#CA1404;-Microsoft.Interoperability#CA1410;-Microsoft.Interoperability#CA1411;-Microsoft.Interoperability#CA1405;-Microsoft.Interoperability#CA1409;-Microsoft.Interoperability#CA1415;-Microsoft.Interoperability#CA1408;-Microsoft.Interoperability#CA1414;-Microsoft.Interoperability#CA1412;-Microsoft.Interoperability#CA1400;-Microsoft.Interoperability#CA1401;-Microsoft.Mobility#CA1600;-Microsoft.Mobility#CA1601;-Microsoft.Portability#CA1901;-Microsoft.Portability#CA1900;-Microsoft.Reliability#CA2000;-Microsoft.Reliability#CA2002;-Microsoft.Reliability#CA2003;-Microsoft.Reliability#CA2004;-Microsoft.Reliability#CA2006</CodeAnalysisRules>
+    <RunCodeAnalysis>false</RunCodeAnalysis>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x64\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <CodeAnalysisRules>-Microsoft.Globalization#CA1301;-Microsoft.Globalization#CA1302;-Microsoft.Globalization#CA1303;-Microsoft.Globalization#CA1306;-Microsoft.Globalization#CA1304;-Microsoft.Globalization#CA1305;-Microsoft.Globalization#CA1300;-Microsoft.Interoperability#CA1403;-Microsoft.Interoperability#CA1406;-Microsoft.Interoperability#CA1413;-Microsoft.Interoperability#CA1402;-Microsoft.Interoperability#CA1407;-Microsoft.Interoperability#CA1404;-Microsoft.Interoperability#CA1410;-Microsoft.Interoperability#CA1411;-Microsoft.Interoperability#CA1405;-Microsoft.Interoperability#CA1409;-Microsoft.Interoperability#CA1415;-Microsoft.Interoperability#CA1408;-Microsoft.Interoperability#CA1414;-Microsoft.Interoperability#CA1412;-Microsoft.Interoperability#CA1400;-Microsoft.Interoperability#CA1401;-Microsoft.Mobility#CA1600;-Microsoft.Mobility#CA1601;-Microsoft.Portability#CA1901;-Microsoft.Portability#CA1900;-Microsoft.Reliability#CA2000;-Microsoft.Reliability#CA2002;-Microsoft.Reliability#CA2003;-Microsoft.Reliability#CA2004;-Microsoft.Reliability#CA2006</CodeAnalysisRules>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <OutputPath>bin\x64\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+  <PropertyGroup>
+    <RunPostBuildEvent>OnOutputUpdated</RunPostBuildEvent>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Core">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Command.cs" />
+    <Compile Include="SlabData.cs" />
+    <Compile Include="FoundationSlabForm.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="FoundationSlabForm.Designer.cs">
+      <DependentUpon>FoundationSlabForm.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="RegularSlab.cs" />
+    <Compile Include="Sketch.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="FoundationSlabForm.resx">
+      <SubType>Designer</SubType>
+      <DependentUpon>FoundationSlabForm.cs</DependentUpon>
+    </EmbeddedResource>
+  </ItemGroup>
+  <Import Project="$(SolutionDir)VSProps\SDKSamples.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+  <PropertyGroup>
+    <PostBuildEvent>set FILEFORSAMPLEREG="$(SolutionDir)..\..\..\..\Regression\API\SDKSamples\UpdateSampleDllForRegression.pl"
+if exist %25FILEFORSAMPLEREG%25 perl %25FILEFORSAMPLEREG%25 $(ProjectExt) "$(ProjectPath)" "$(TargetPath)" "$(SolutionDir)"</PostBuildEvent>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ResolveAssemblyWarnOrErrorOnTargetArchitectureMismatch>None</ResolveAssemblyWarnOrErrorOnTargetArchitectureMismatch>
+  </PropertyGroup>
+</Project>

SDK/Samples/FoundationSlab/CS/FoundationSlabForm.Designer.cs

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+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM 'AS IS' AND WITH ALL ITS FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable. 
+//
+
+namespace Revit.SDK.Samples.FoundationSlab.CS
+{
+    partial class FoundationSlabForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle2 = new System.Windows.Forms.DataGridViewCellStyle();
+            this.pictureBox = new System.Windows.Forms.PictureBox();
+            this.okButton = new System.Windows.Forms.Button();
+            this.diagramGroupBox = new System.Windows.Forms.GroupBox();
+            this.gridGroupBox = new System.Windows.Forms.GroupBox();
+            this.clearAllButton = new System.Windows.Forms.Button();
+            this.selectAllButton = new System.Windows.Forms.Button();
+            this.dataGridView = new System.Windows.Forms.DataGridView();
+            this.typeComboBox = new System.Windows.Forms.ComboBox();
+            this.typeLabel = new System.Windows.Forms.Label();
+            this.cancelButton = new System.Windows.Forms.Button();
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBox)).BeginInit();
+            this.diagramGroupBox.SuspendLayout();
+            this.gridGroupBox.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // pictureBox
+            // 
+            this.pictureBox.BackColor = System.Drawing.SystemColors.ControlText;
+            this.pictureBox.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
+            this.pictureBox.Location = new System.Drawing.Point(6, 19);
+            this.pictureBox.Name = "pictureBox";
+            this.pictureBox.Size = new System.Drawing.Size(419, 296);
+            this.pictureBox.TabIndex = 0;
+            this.pictureBox.TabStop = false;
+            this.pictureBox.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox_Paint);
+            // 
+            // okButton
+            // 
+            this.okButton.DialogResult = System.Windows.Forms.DialogResult.OK;
+            this.okButton.Location = new System.Drawing.Point(271, 524);
+            this.okButton.Name = "okButton";
+            this.okButton.Size = new System.Drawing.Size(75, 23);
+            this.okButton.TabIndex = 6;
+            this.okButton.Text = "&OK";
+            this.okButton.UseVisualStyleBackColor = true;
+            this.okButton.Click += new System.EventHandler(this.okButton_Click);
+            // 
+            // diagramGroupBox
+            // 
+            this.diagramGroupBox.Controls.Add(this.pictureBox);
+            this.diagramGroupBox.ForeColor = System.Drawing.Color.Black;
+            this.diagramGroupBox.Location = new System.Drawing.Point(12, 12);
+            this.diagramGroupBox.Name = "diagramGroupBox";
+            this.diagramGroupBox.Size = new System.Drawing.Size(431, 321);
+            this.diagramGroupBox.TabIndex = 2;
+            this.diagramGroupBox.TabStop = false;
+            this.diagramGroupBox.Text = "Slabs Diagram (Analytical Model)";
+            // 
+            // gridGroupBox
+            // 
+            this.gridGroupBox.Controls.Add(this.clearAllButton);
+            this.gridGroupBox.Controls.Add(this.selectAllButton);
+            this.gridGroupBox.Controls.Add(this.dataGridView);
+            this.gridGroupBox.ForeColor = System.Drawing.Color.Black;
+            this.gridGroupBox.Location = new System.Drawing.Point(12, 339);
+            this.gridGroupBox.Name = "gridGroupBox";
+            this.gridGroupBox.Size = new System.Drawing.Size(431, 160);
+            this.gridGroupBox.TabIndex = 3;
+            this.gridGroupBox.TabStop = false;
+            this.gridGroupBox.Text = "Regular Slabs";
+            // 
+            // clearAllButton
+            // 
+            this.clearAllButton.ForeColor = System.Drawing.SystemColors.ControlText;
+            this.clearAllButton.Location = new System.Drawing.Point(350, 62);
+            this.clearAllButton.Name = "clearAllButton";
+            this.clearAllButton.Size = new System.Drawing.Size(75, 23);
+            this.clearAllButton.TabIndex = 2;
+            this.clearAllButton.Text = "&Clear All";
+            this.clearAllButton.UseVisualStyleBackColor = true;
+            this.clearAllButton.Click += new System.EventHandler(this.clearAllButton_Click);
+            // 
+            // selectAllButton
+            // 
+            this.selectAllButton.ForeColor = System.Drawing.SystemColors.ControlText;
+            this.selectAllButton.Location = new System.Drawing.Point(349, 19);
+            this.selectAllButton.Name = "selectAllButton";
+            this.selectAllButton.Size = new System.Drawing.Size(75, 23);
+            this.selectAllButton.TabIndex = 1;
+            this.selectAllButton.Text = "&Select All";
+            this.selectAllButton.UseVisualStyleBackColor = true;
+            this.selectAllButton.Click += new System.EventHandler(this.selectAllButton_Click);
+            // 
+            // dataGridView
+            // 
+            this.dataGridView.AllowUserToResizeRows = false;
+            this.dataGridView.BackgroundColor = System.Drawing.SystemColors.Window;
+            this.dataGridView.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
+            this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewCellStyle2.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle2.BackColor = System.Drawing.SystemColors.Window;
+            dataGridViewCellStyle2.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
+            dataGridViewCellStyle2.ForeColor = System.Drawing.Color.Black;
+            dataGridViewCellStyle2.SelectionBackColor = System.Drawing.SystemColors.Highlight;
+            dataGridViewCellStyle2.SelectionForeColor = System.Drawing.SystemColors.HighlightText;
+            dataGridViewCellStyle2.WrapMode = System.Windows.Forms.DataGridViewTriState.False;
+            this.dataGridView.DefaultCellStyle = dataGridViewCellStyle2;
+            this.dataGridView.Location = new System.Drawing.Point(6, 19);
+            this.dataGridView.Name = "dataGridView";
+            this.dataGridView.RowHeadersWidth = 30;
+            this.dataGridView.Size = new System.Drawing.Size(337, 133);
+            this.dataGridView.TabIndex = 0;
+            this.dataGridView.CellClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView_CellClick);
+            this.dataGridView.CurrentCellDirtyStateChanged += new System.EventHandler(this.dataGridView_CurrentCellDirtyStateChanged);
+            this.dataGridView.CellValueChanged += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView_CellValueChanged);
+            // 
+            // typeComboBox
+            // 
+            this.typeComboBox.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.typeComboBox.FormattingEnabled = true;
+            this.typeComboBox.Location = new System.Drawing.Point(18, 525);
+            this.typeComboBox.Name = "typeComboBox";
+            this.typeComboBox.Size = new System.Drawing.Size(181, 21);
+            this.typeComboBox.TabIndex = 4;
+            this.typeComboBox.SelectedIndexChanged += new System.EventHandler(this.typeComboBox_SelectedIndexChanged);
+            // 
+            // typeLabel
+            // 
+            this.typeLabel.AutoSize = true;
+            this.typeLabel.ForeColor = System.Drawing.Color.Black;
+            this.typeLabel.Location = new System.Drawing.Point(15, 505);
+            this.typeLabel.Name = "typeLabel";
+            this.typeLabel.Size = new System.Drawing.Size(149, 13);
+            this.typeLabel.TabIndex = 5;
+            this.typeLabel.Text = "Select Foundation Slab Types";
+            // 
+            // cancelButton
+            // 
+            this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.cancelButton.Location = new System.Drawing.Point(362, 524);
+            this.cancelButton.Name = "cancelButton";
+            this.cancelButton.Size = new System.Drawing.Size(75, 23);
+            this.cancelButton.TabIndex = 0;
+            this.cancelButton.Text = "&Cancel";
+            this.cancelButton.UseVisualStyleBackColor = true;
+            this.cancelButton.Click += new System.EventHandler(this.cancelButton_Click);
+            // 
+            // FoundationSlabForm
+            // 
+            this.AcceptButton = this.okButton;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.cancelButton;
+            this.ClientSize = new System.Drawing.Size(455, 566);
+            this.Controls.Add(this.cancelButton);
+            this.Controls.Add(this.typeLabel);
+            this.Controls.Add(this.typeComboBox);
+            this.Controls.Add(this.gridGroupBox);
+            this.Controls.Add(this.diagramGroupBox);
+            this.Controls.Add(this.okButton);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "FoundationSlabForm";
+            this.ShowIcon = false;
+            this.ShowInTaskbar = false;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
+            this.Text = "Foundation Slab";
+            this.Load += new System.EventHandler(this.FoundationSlabForm_Load);
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBox)).EndInit();
+            this.diagramGroupBox.ResumeLayout(false);
+            this.gridGroupBox.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.PictureBox pictureBox;
+        private System.Windows.Forms.Button okButton;
+        private System.Windows.Forms.GroupBox diagramGroupBox;
+        private System.Windows.Forms.GroupBox gridGroupBox;
+        private System.Windows.Forms.DataGridView dataGridView;
+        private System.Windows.Forms.ComboBox typeComboBox;
+        private System.Windows.Forms.Label typeLabel;
+        private System.Windows.Forms.Button cancelButton;
+        private System.Windows.Forms.Button clearAllButton;
+        private System.Windows.Forms.Button selectAllButton;
+    }
+}

SDK/Samples/FoundationSlab/CS/FoundationSlabForm.cs

@@ -0,0 +1,226 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM 'AS IS' AND WITH ALL ITS FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable. 
+//
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+
+namespace Revit.SDK.Samples.FoundationSlab.CS
+{
+    /// <summary>
+    /// A class to show properties and profiles of the foundation slabs.
+    /// </summary>
+    public partial class FoundationSlabForm : System.Windows.Forms.Form
+    {
+        // Revit datas for UI to display and operate.
+        SlabData m_datas;
+
+        // The columns of DataGridView.
+        DataGridViewCheckBoxColumn selectedColumn = new DataGridViewCheckBoxColumn();
+        DataGridViewTextBoxColumn markColumn = new DataGridViewTextBoxColumn();
+        DataGridViewTextBoxColumn levelNameColumn = new DataGridViewTextBoxColumn();
+        DataGridViewTextBoxColumn slabTypeNameColumn = new DataGridViewTextBoxColumn();
+
+        /// <summary>
+        /// Constructor.
+        /// </summary>
+        /// <param name="datas">The object contains floors' datas.</param>
+        public FoundationSlabForm(SlabData datas)
+        {
+            m_datas = datas;
+
+            InitializeComponent();
+            InitializeDataGridView(); // DataGridView initialization.
+        }
+
+        private void InitializeDataGridView()
+        {
+            // Edit the columns of the dataGridView.
+            dataGridView.AutoGenerateColumns = false;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { selectedColumn, markColumn, levelNameColumn, slabTypeNameColumn });
+            dataGridView.DataSource = m_datas.BaseSlabList;
+
+            // Select
+            selectedColumn.DataPropertyName = "Selected";
+            selectedColumn.HeaderText = "Select";
+            selectedColumn.Name = "SelectedColumn";
+            selectedColumn.ReadOnly = false;
+            selectedColumn.Width = dataGridView.Width / 8;
+
+            // Mark
+            markColumn.DataPropertyName = "Mark";
+            markColumn.HeaderText = "Mark";
+            markColumn.Name = "MarkColumn";
+            markColumn.ReadOnly = true;
+            markColumn.Width = dataGridView.Width / 9;
+
+            int remainWidth = dataGridView.Width - dataGridView.RowHeadersWidth - selectedColumn.Width - markColumn.Width;
+
+            // Level
+            levelNameColumn.DataPropertyName = "LevelName";
+            levelNameColumn.HeaderText = "Level";
+            levelNameColumn.Name = "levelNameColumn";
+            levelNameColumn.ReadOnly = true;
+            levelNameColumn.Width = remainWidth / 2 - 2;
+
+            // Slab Type
+            slabTypeNameColumn.DataPropertyName = "SlabTypeName";
+            slabTypeNameColumn.HeaderText = "Slab Type";
+            slabTypeNameColumn.Name = "SlabTypeNameColumn";
+            slabTypeNameColumn.ReadOnly = true;
+            slabTypeNameColumn.Width = remainWidth / 2;
+        }
+
+        /// <summary>
+        /// Form load.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void FoundationSlabForm_Load(object sender, EventArgs e)
+        {
+            okButton.Enabled = m_datas.CheckHaveSelected();
+            typeComboBox.DataSource = m_datas.FoundationSlabTypeList;
+            typeComboBox.DisplayMember = "Name";
+
+            if (0 == m_datas.BaseSlabList.Count)
+            {
+                selectAllButton.Enabled = false;
+                clearAllButton.Enabled = false;
+            }
+        }
+
+        /// <summary>
+        /// Cell value changed.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void dataGridView_CellValueChanged(object sender, DataGridViewCellEventArgs e)
+        {
+            okButton.Enabled = m_datas.CheckHaveSelected();
+            pictureBox.Refresh();
+        }
+
+        /// <summary>
+        /// Cell click.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void dataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
+        {
+            // Click on CheckBoxes.
+            if ((e.ColumnIndex >= 0) && ("CheckBoxes" == dataGridView.Columns[e.ColumnIndex].Name))
+            {
+                EventArgs newE = new EventArgs();
+                this.dataGridView_CurrentCellDirtyStateChanged(this, newE);
+            }
+        }
+
+        /// <summary>
+        /// Current Cell Dirty State Changed.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void dataGridView_CurrentCellDirtyStateChanged(object sender, EventArgs e)
+        {
+            if (dataGridView.IsCurrentCellDirty)
+            {
+                dataGridView.CommitEdit(DataGridViewDataErrorContexts.Commit); // Commit dataGridView.
+            }
+        }
+
+        /// <summary>
+        /// Paint.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void pictureBox_Paint(object sender, PaintEventArgs e)
+        {
+            Sketch.DrawProfile(e.Graphics, pictureBox.DisplayRectangle, m_datas.BaseSlabList);   // Draw profiles.
+        }
+
+        /// <summary>
+        /// Click ok button.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void okButton_Click(object sender, EventArgs e)
+        {
+            bool IsSuccess = m_datas.CreateFoundationSlabs();
+            if (IsSuccess)
+                this.DialogResult = DialogResult.OK;
+            else
+                this.DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        /// <summary>
+        /// Click cancel button.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void cancelButton_Click(object sender, EventArgs e)
+        {
+            Close();
+        }
+
+        /// <summary>
+        /// Select type.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void typeComboBox_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            m_datas.FoundationSlabType = typeComboBox.SelectedItem;
+        }
+
+        /// <summary>
+        /// Click selectAllButton.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void selectAllButton_Click(object sender, EventArgs e)
+        {
+            m_datas.ChangeAllSelected(true);
+            dataGridView.Refresh();
+            okButton.Enabled = true;
+            pictureBox.Refresh();
+        }
+
+        /// <summary>
+        /// Click clearAllButton.
+        /// </summary>
+        /// <param name="sender">This object.</param>
+        /// <param name="e">A object contains the event data.</param>
+        private void clearAllButton_Click(object sender, EventArgs e)
+        {
+            m_datas.ChangeAllSelected(false);
+            dataGridView.Refresh();
+            okButton.Enabled = false;
+            pictureBox.Refresh();
+        }
+
+    }
+}

SDK/Samples/FoundationSlab/CS/FoundationSlabForm.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SDK/Samples/FoundationSlab/CS/Properties/AssemblyInfo.cs

@@ -0,0 +1,57 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM 'AS IS' AND WITH ALL ITS FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable. 
+//
+
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("FoundationSlab")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("FoundationSlab")]
+[assembly: AssemblyCopyright("Copyright © Autodesk, Inc. 2009")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("1863bbba-0551-4f9a-b55a-f3dccd6e2627")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Revision and Build Numbers 
+// by using the '*' as shown below:
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

SDK/Samples/FoundationSlab/CS/ReadMe_FoundationSlab.rtf

@@ -0,0 +1,227 @@
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+\paperw12240\paperh15840\margl1440\margr1440\margt1440\margb1440\gutter0\ltrsect 
+\widowctrl\ftnbj\aenddoc\trackmoves1\trackformatting1\donotembedsysfont0\relyonvml0\donotembedlingdata1\grfdocevents0\validatexml0\showplaceholdtext0\ignoremixedcontent0\saveinvalidxml0\showxmlerrors0\horzdoc\dghspace120\dgvspace120\dghorigin1701
+\dgvorigin1984\dghshow0\dgvshow3\jcompress\viewkind1\viewscale100\rsidroot3033555 \fet0{\*\wgrffmtfilter 2450}\ilfomacatclnup0\ltrpar \sectd \ltrsect\linex0\sectdefaultcl\sftnbj {\*\pnseclvl1\pnucrm\pnstart1\pnindent720\pnhang {\pntxta .}}{\*\pnseclvl2
+\pnucltr\pnstart1\pnindent720\pnhang {\pntxta .}}{\*\pnseclvl3\pndec\pnstart1\pnindent720\pnhang {\pntxta .}}{\*\pnseclvl4\pnlcltr\pnstart1\pnindent720\pnhang {\pntxta )}}{\*\pnseclvl5\pndec\pnstart1\pnindent720\pnhang {\pntxtb (}{\pntxta )}}{\*\pnseclvl6
+\pnlcltr\pnstart1\pnindent720\pnhang {\pntxtb (}{\pntxta )}}{\*\pnseclvl7\pnlcrm\pnstart1\pnindent720\pnhang {\pntxtb (}{\pntxta )}}{\*\pnseclvl8\pnlcltr\pnstart1\pnindent720\pnhang {\pntxtb (}{\pntxta )}}{\*\pnseclvl9\pnlcrm\pnstart1\pnindent720\pnhang 
+{\pntxtb (}{\pntxta )}}\pard\plain \ltrpar\ql \li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 \rtlch\fcs1 \af31507\afs22\alang1025 \ltrch\fcs0 \fs22\lang1033\langfe2052\loch\af31506\hich\af31506\dbch\af31505\cgrid\langnp1033\langfenp2052 {
+\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Application:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  FoundationSlab\line }{\rtlch\fcs1 \ab\af1\afs20 
+\ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Revit Platform:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  All\line }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 
+\hich\af1\dbch\af31505\loch\f1 Revit Version:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  2011.0\line }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 
+First Released For:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  9.1\line }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Programming Language:}{\rtlch\fcs1 
+\af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  C#\line }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Skill Level:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 
+\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  Medium\line }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Category:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 
+\hich\af1\dbch\af31505\loch\f1  Elements\line }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Type:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 
+ ExternalCommand\line \line }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Subject:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  Create Foundation Slab.\line 
+}{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Summary:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  \line \hich\af1\dbch\af31505\loch\f1 
+This sample demonstrates how to create Foundation Slab.}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \f0\fs20\insrsid1709986 
+\par 
+\par }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Classes:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  
+\par }\pard \ltrpar\ql \fi360\li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Autodesk.Revit.}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid3033555 
+\hich\af1\dbch\af31505\loch\f1 UI.}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 IExternalCommand 
+\par \hich\af1\dbch\af31505\loch\f1 Autodesk.Revit.}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 DB}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 .Floor
+\par \hich\af1\dbch\af31505\loch\f1 Autodesk.Revit.}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 DB}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 .FloorType
+\par \hich\af1\dbch\af31505\loch\f1 Autodesk.Revit.}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 DB}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 .Document 
+\par }\pard \ltrpar\ql \li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \f0\fs20\insrsid1709986 
+\par }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Project Files:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1  }{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 
+\f0\fs20\cf2\insrsid1709986 
+\par }{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 Command.cs
+\par }\pard \ltrpar\ql \li360\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin360\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 
+This file contains the class Command which implements interface IExternalCommand. It creates an instance of SlabData for FoundationSlabForm and show the form.}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \f0\fs20\insrsid1709986 
+\par }\pard \ltrpar\ql \li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \f0\fs20\insrsid1709986 
+\par }{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 RegularSlab.cs}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \f0\fs20\insrsid1709986 
+\par }\pard \ltrpar\ql \li401\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin401\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \f1\fs20\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 This file contains }{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 
+\f1\fs20\lang1024\langfe1024\noproof\insrsid1709986 \hich\af1\dbch\af31505\loch\f1 a class of regular slab.}{\rtlch\fcs1 \af39\afs20 \ltrch\fcs0 \fs20\cf11\lang1024\langfe1024\loch\af39\hich\af1\dbch\af39\noproof\insrsid1709986 
+\hich\af1\dbch\af39\loch\f39  }{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\lang1024\langfe1024\loch\af1\hich\af1\dbch\af39\noproof\insrsid1709986 \hich\af1\dbch\af39\loch\f1 Create an octagonal profile for the f\hich\af1\dbch\af39\loch\f1 
+loor according to its bounding box}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par \hich\af1\dbch\af39\loch\f1 FoundationSlabForm.cs}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \fs20\loch\af0\hich\af0\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \fi400\li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 This file contains }{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 
+\fs20\lang1024\langfe1024\loch\af1\hich\af1\dbch\af39\noproof\insrsid1709986 \hich\af1\dbch\af39\loch\f1 a class to show properties and profiles of the foundation slabs.}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \fs20\loch\af0\hich\af0\dbch\af39\insrsid1709986 
+
+\par }\pard \ltrpar\ql \li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par \hich\af1\dbch\af39\loch\f1 SlabData.cs}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \fs20\loch\af0\hich\af0\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \li358\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin358\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\lang1024\langfe1024\loch\af1\hich\af1\dbch\af39\noproof\insrsid1709986 \hich\af1\dbch\af39\loch\f1 This file }{\rtlch\fcs1 \af1\afs20 
+\ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 contains a class SlabData that is a mediator between RevitAPI and FoundationSlabForm}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 
+\fs20\lang1024\langfe1024\loch\af1\hich\af1\dbch\af39\noproof\insrsid1709986 \hich\af1\dbch\af39\loch\f1 . It ha\hich\af1\dbch\af39\loch\f1 
+s a collection of functions to create FoundationSlabs, find out all regular horizontal slabs, get the floor profile, verify whether the floor is planar etc.}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \fs20\loch\af0\hich\af0\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par \hich\af1\dbch\af39\loch\f1 Sketch.cs
+\par }\pard \ltrpar\ql \fi400\li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 This file contains }{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 
+\fs20\lang1024\langfe1024\loch\af1\hich\af1\dbch\af39\noproof\insrsid1709986 \hich\af1\dbch\af39\loch\f1 an internal class for drawing slabs' profiles}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 .}{\rtlch\fcs1 
+\af0\afs20 \ltrch\fcs0 \fs20\loch\af0\hich\af0\dbch\af39\insrsid1709986 
+\par }{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 Description:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 
+\fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1  }{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \fs20\loch\af0\hich\af0\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \fi-360\li360\ri0\nowidctlpar\tx360\wrapdefault\faauto\rin0\lin360\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 -\tab \hich\af1\dbch\af39\loch\f1 
+To get slabs, iterate through the document looking for \hich\f1 \lquote \loch\f1 Floor\hich\f1 \rquote \loch\f1  objects.
+\par }\pard \ltrpar\ql \fi-360\li360\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin360\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 -\tab \hich\af1\dbch\af39\loch\f1 
+The Mark property can be found in floor parameter: BuiltInParameter.ALL_MODEL_MARK.
+\par -\tab \hich\af1\dbch\af39\loch\f1 Foundation slab types can be found by iterating through the document looking for \hich\f1 \lquote \loch\f1 FloorType\hich\f1 \rquote \loch\f1  obj\hich\af1\dbch\af39\loch\f1 ects with category named \hich\f1 \lquote 
+\loch\f1 Structural Foundations\hich\f1 \rquote .
+\par -\tab \hich\af1\dbch\af39\loch\f1 A Foundation Slab can be created by \hich\f1 \lquote \loch\f1 NewFloor\hich\f1 \rquote \loch\f1  method with the given horizontal profile and using a specified foundation slab style. 
+\par -\tab \hich\af1\dbch\af39\loch\f1 Structural slab's profile can be found in its AnalyticalModel prope\hich\af1\dbch\af39\loch\f1 rty. Nonstructural floor's profile can be formed through its Geometry property.
+\par -\tab \hich\af1\dbch\af39\loch\f1 The octagonal profile is an array of planar lines that represent the horizontal profile of the octagonal foundation slab.
+\par -\tab \hich\af1\dbch\af39\loch\f1 Make sure the profile of slab is a closed outline,\hich\af1\dbch\af39\loch\f1  or else it could not be created by Revit.
+\par }\pard \ltrpar\ql \li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par }{\rtlch\fcs1 \ab\af1\afs20 \ltrch\fcs0 \b\fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 Instructions:}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\cf2\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1  }{
+\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \fi-360\li360\ri0\nowidctlpar\tx360\wrapdefault\faauto\rin0\lin360\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 1.\tab Prepare your Revit project.
+\par }\pard \ltrpar\ql \li360\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin360\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 
+Open or new a Revit project and make sure there are some floors in the document. A sample project file FoundationSlab.rvt is available in the sample\hich\f1 \rquote \loch\f1 s folder}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 
+\fs20\loch\af0\hich\af0\dbch\af39\insrsid1709986 .}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \fi-360\li360\ri0\nowidctlpar\tx360\wrapdefault\faauto\rin0\lin360\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 2.\tab \hich\af1\dbch\af39\loch\f1 Run the command.
+
+\par }\pard \ltrpar\ql \fi-360\li360\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin360\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 3.\tab 
+In the Regular Slabs group, select the floors you want to make change.
+\par \hich\af1\dbch\af39\loch\f1 4.\tab In the bottom of the dialog, select the Foundation Slab Type to be applied}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \fs20\loch\af0\hich\af0\dbch\af39\insrsid1709986 .}{\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 
+\fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \fi-360\li360\ri0\nowidctlpar\tx360\wrapdefault\faauto\rin0\lin360\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 \hich\af1\dbch\af39\loch\f1 5.\tab 
+You can see the preview of the converting results in the Picture Box. Click OK butt\hich\af1\dbch\af39\loch\f1 on to create octagonal slabs for the selected floors}{\rtlch\fcs1 \af0\afs20 \ltrch\fcs0 \fs20\loch\af0\hich\af0\dbch\af39\insrsid1709986 .}{
+\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par }\pard \ltrpar\ql \li0\ri0\nowidctlpar\wrapdefault\faauto\rin0\lin0\itap0 {\rtlch\fcs1 \af1\afs20 \ltrch\fcs0 \fs20\loch\af1\hich\af1\dbch\af39\insrsid1709986 
+\par }{\*\themedata 504b030414000600080000002100828abc13fa0000001c020000130000005b436f6e74656e745f54797065735d2e786d6cac91cb6ac3301045f785fe83d0b6d8
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SDK/Samples/FoundationSlab/CS/RegularSlab.cs

@@ -0,0 +1,191 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM 'AS IS' AND WITH ALL ITS FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable. 
+//
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.DB.Structure;
+
+namespace Revit.SDK.Samples.FoundationSlab.CS
+{
+    /// <summary>
+    /// A class of regular slab.
+    /// </summary>
+    public class RegularSlab
+    {
+        bool m_selected = true; // Be selected or not.
+        string m_mark;   // The mark of the slab.
+        Level m_level;   // The level of the slab.
+        ElementType m_type; // The type of the slab.
+
+        Autodesk.Revit.DB.ElementId m_id; // The id of the slab.
+        CurveArray m_profile;  // The profile of the slab.
+        CurveArray m_octagonalProfile; // The octagonal profile of the slab.
+        BoundingBoxXYZ m_maxBBox; // The max bounding box of the slab.
+
+        /// <summary>
+        /// Selected property.
+        /// </summary>
+        public bool Selected
+        {
+            get { return m_selected; }
+            set { m_selected = value; }
+        }
+
+        /// <summary>
+        /// Mark property.
+        /// </summary>
+        public string Mark
+        {
+            get { return m_mark; }
+        }
+
+        /// <summary>
+        /// LevelName property.
+        /// </summary>
+        public string LevelName
+        {
+            get { return m_level.Name; }
+        }
+
+        /// <summary>
+        /// SlabTypeName property.
+        /// </summary>
+        public string SlabTypeName
+        {
+            get { return m_type.Name; }
+        }
+
+        /// <summary>
+        /// Id property.
+        /// </summary>
+        public Autodesk.Revit.DB.ElementId Id
+        {
+            get { return m_id; }
+        }
+
+        /// <summary>
+        /// Profile property.
+        /// </summary>
+        public CurveArray Profile
+        {
+            get { return m_profile; }
+        }
+
+        /// <summary>
+        /// OctagonalProfile property.
+        /// </summary>
+        public CurveArray OctagonalProfile
+        {
+            get { return m_octagonalProfile; }
+        }
+
+        /// <summary>
+        /// BBox property.
+        /// </summary>
+        public BoundingBoxXYZ BBox
+        {
+            get { return m_maxBBox; }
+        }
+
+        /// <summary>
+        /// Constructor.
+        /// </summary>
+        /// <param name="floor">The floor object.</param>
+        /// <param name="floorProfile">The floor's profile.</param>
+        /// <param name="bBox">The floor's bounding box.</param>
+        public RegularSlab(Floor floor, CurveArray floorProfile, BoundingBoxXYZ bBox)
+        {
+            // Get floor's properties.
+            if (null != floor)
+            {
+                // Get floor's Mark property.
+                Parameter markPara = floor.get_Parameter(BuiltInParameter.ALL_MODEL_MARK);
+                if (null != markPara)
+                {
+                    m_mark = markPara.AsString();
+                }
+
+                m_level = floor.Document.GetElement(floor.LevelId) as Level;   // Get floor's level.
+                m_type = floor.Document.GetElement(floor.GetTypeId()) as ElementType;// Get floor's type.
+                m_id = floor.Id; // Get floor's Id.
+                m_profile = floorProfile;  // Get floor's profile.
+            }
+
+            // Create an octagonal profile for the floor according to it's bounding box.
+            if (null != bBox)
+            {
+                CreateOctagonProfile(bBox.Min, bBox.Max);
+            }
+        }
+
+        /// <summary>
+        /// Create an octagonal profile.
+        /// </summary>
+        /// <param name="min">The min point of the floor's bounding box.</param>
+        /// <param name="max">The max point of the floor's bounding box.</param>
+        /// <returns>The bool value suggests successful or not.</returns>
+        private bool CreateOctagonProfile(Autodesk.Revit.DB.XYZ min, Autodesk.Revit.DB.XYZ max)
+        {
+            // Calculate the x/y offset.
+            double xOffset = Math.Abs(max.Y - min.Y) / 8;
+            double yOffset = Math.Abs(max.X - min.X) / 8;
+            double z = max.Z;
+
+            // Calculate the eight points of the octagon.
+            Autodesk.Revit.DB.XYZ[] points = new Autodesk.Revit.DB.XYZ[8];
+            points[0] = new Autodesk.Revit.DB.XYZ(min.X, min.Y, z);
+            points[1] = new Autodesk.Revit.DB.XYZ((min.X + max.X) / 2, (min.Y - yOffset), z);
+            points[2] = new Autodesk.Revit.DB.XYZ(max.X, min.Y, z);
+            points[3] = new Autodesk.Revit.DB.XYZ((max.X + xOffset), (min.Y + max.Y) / 2, z);
+            points[4] = new Autodesk.Revit.DB.XYZ(max.X, max.Y, z);
+            points[5] = new Autodesk.Revit.DB.XYZ((min.X + max.X) / 2, (max.Y + yOffset), z);
+            points[6] = new Autodesk.Revit.DB.XYZ(min.X, max.Y, z);
+            points[7] = new Autodesk.Revit.DB.XYZ((min.X - xOffset), (min.Y + max.Y) / 2, z);
+
+            // Get the octagonal profile.
+            m_octagonalProfile = new CurveArray();
+            for (int i = 0; i < 8; i++)
+            {
+                Line line;
+                if (7 == i)
+                    line = Line.CreateBound(points[i], points[0]);
+                else
+                    line = Line.CreateBound(points[i], points[i + 1]);
+                m_octagonalProfile.Append(line);
+            }
+
+            // Get the octagonal profile's bounding box.
+            Autodesk.Revit.DB.XYZ newMin = new Autodesk.Revit.DB.XYZ(min.X - xOffset, min.Y - yOffset, z);
+            Autodesk.Revit.DB.XYZ newMax = new Autodesk.Revit.DB.XYZ(max.X + xOffset, max.Y + yOffset, z);
+            m_maxBBox = new BoundingBoxXYZ();
+            m_maxBBox.Min = newMin;
+            m_maxBBox.Max = newMax;
+
+            return true;
+        }
+
+    }
+}

SDK/Samples/FoundationSlab/CS/Sketch.cs

@@ -0,0 +1,184 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM 'AS IS' AND WITH ALL ITS FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable. 
+//
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Collections.ObjectModel;
+
+using Autodesk.Revit.DB;
+
+namespace Revit.SDK.Samples.FoundationSlab.CS
+{
+    /// <summary>
+    /// An internal class for drawing slabs' profiles.
+    /// This class is intended to contain only static methods.
+    /// </summary>
+    class Sketch
+    {
+        // A private constructor to prevent the compiler from generating a default constructor.
+        private Sketch() { }
+
+        /// <summary>
+        /// Draw profiles.
+        /// </summary>
+        /// <param name="graphic">The object of Graphics to draw profiles.</param>
+        /// <param name="rclip">The rectangle area to draw profiles.</param>
+        /// <param name="baseSlabList">A set of base floors' datas containing profiles.</param>
+        public static void DrawProfile(Graphics graphic, RectangleF rclip, Collection<RegularSlab> baseSlabList)
+        {
+            RectangleF maxBBox = GetMaxBBox(baseSlabList);    // Get the max bounding box's rectangle area.
+            Matrix matrix = GetTransformMatrix(rclip, maxBBox); // Get the transform matrix.
+            if (null == matrix)
+                return;
+
+            graphic.Clear(System.Drawing.Color.Black); // Clear the object of graphics.
+            graphic.Transform = matrix;  // Transform the object of graphics.
+            graphic.SmoothingMode = SmoothingMode.HighQuality; // Smooth it.
+
+            // Two pens for drawing profiles.
+            Pen yellowPen = new Pen(System.Drawing.Color.Yellow, (float)0.05);  // For floors' profiles.
+            Pen greenPen = new Pen(System.Drawing.Color.Green, (float)0.2); // For octagonal profiles.
+
+            // Draw profiles.
+            foreach (RegularSlab slab in baseSlabList)
+            {
+                if (null != slab.Profile)
+                {
+                    DrawLine(yellowPen, graphic, slab.Profile);   // Draw floor's profiles.
+                }
+                if (slab.Selected)
+                {
+                    DrawLine(greenPen,graphic, slab.OctagonalProfile); // Draw octagonal profiles.
+                }
+            }
+
+            // Dispose pen and matrix.
+            yellowPen.Dispose();
+            greenPen.Dispose();
+            matrix.Dispose();
+        }
+
+        /// <summary>
+        /// Draw Lines.
+        /// </summary>
+        /// <param name="pen">The pen to draw lines.</param>
+        /// <param name="graphic">The object of graphics to draw lines.</param>
+        /// <param name="curveArray">A set contains lines.</param>
+        private static void DrawLine(Pen pen, Graphics graphic, CurveArray curveArray)
+        {
+            foreach (Curve curve in curveArray)
+            {
+                Line line = curve as Line;  // Draw one line.
+                if (null != line)
+                {
+                    PointF startPoint = new PointF((float)line.GetEndPoint(0).X, (float)line.GetEndPoint(0).Y);
+                    PointF endPoint = new PointF((float)line.GetEndPoint(1).X, (float)line.GetEndPoint(1).Y);
+                    graphic.DrawLine(pen, startPoint, endPoint);
+                    continue;
+                }
+                List<XYZ> xyzArray = curve.Tessellate() as List<XYZ>;    // Draw lines which form one arc.
+                for (int i = 0; i < (xyzArray.Count - 1); i++)
+                {
+                    PointF startPoint = new PointF((float)xyzArray[i].X, (float)xyzArray[i].Y);
+                    PointF endPoint = new PointF((float)xyzArray[i + 1].X, (float)xyzArray[i + 1].Y);
+                    graphic.DrawLine(pen, startPoint, endPoint);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get transform matrix.
+        /// </summary>
+        /// <param name="rclip">The rectangle area to draw profiles.</param>
+        /// <param name="rBox">the rectangle area of the all the floors' max bounding box.</param>
+        /// <returns>The transform matrix.</returns>
+        private static Matrix GetTransformMatrix(RectangleF rclip, RectangleF rBox)
+        {
+            try
+            {
+                RectangleF rdraw = rclip;
+
+                // Calculate the draw area according to the size of the sketch:
+                // Adjust the shrink to change borders
+                float shrink = (float)0.15, shrinked = (float)1.0 - 2 * shrink;
+                if (rBox.Width * rclip.Height > rBox.Height * rclip.Width)
+                    rdraw.Inflate(-rclip.Width * shrink, (rclip.Width * shrinked * (float)rBox.Height / (float)rBox.Width - rclip.Height) / 2);
+                else
+                    rdraw.Inflate((rclip.Height * shrinked * (float)rBox.Width / (float)rBox.Height - rclip.Width) / 2, -rclip.Height * shrink);
+
+                // Mapping the point in sketch to point in draw area:
+                PointF[] plgpts = new PointF[3];
+                plgpts[0].X = rdraw.Left;
+                plgpts[0].Y = rdraw.Bottom;
+                plgpts[1].X = rdraw.Right;
+                plgpts[1].Y = rdraw.Bottom;
+                plgpts[2].X = rdraw.Left;
+                plgpts[2].Y = rdraw.Top;
+
+                // Get the transform matrix and return.
+                return new Matrix(rBox, plgpts);
+            }
+            catch (ArithmeticException)
+            {
+                return null;
+            }
+            catch (OutOfMemoryException)
+            {
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// Get the max bounding box of all floors.
+        /// </summary>
+        /// <param name="baseSlabList">A set of base floors' datas containing bounding box.</param>
+        /// <returns>The rectangle area of all the base floors' max bounding box.</returns>
+        private static RectangleF GetMaxBBox(Collection<RegularSlab> baseSlabList)
+        {
+            int count = 1;
+            RectangleF union = new RectangleF();
+            foreach (RegularSlab slab in baseSlabList)
+            {
+                float x = (float)(slab.BBox.Min.X);
+                float y = (float)(slab.BBox.Min.Y);
+                float width = (float)(slab.BBox.Max.X - slab.BBox.Min.X);
+                float height = (float)(slab.BBox.Max.Y - slab.BBox.Min.Y);
+                RectangleF slabBox = new RectangleF(x,y,width,height); // Rectangle area of each floor.
+                if(1 == count)
+                {
+                    union = slabBox;
+                }
+                else
+                {
+                    union = RectangleF.Union(union, slabBox);   // The union of all the floors' rectangle areas.
+                }
+                count++;
+            }
+            return union;
+        }
+
+    }
+}

SDK/Samples/FoundationSlab/CS/SlabData.cs

@@ -0,0 +1,348 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM 'AS IS' AND WITH ALL ITS FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable. 
+//
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Collections.ObjectModel;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using Autodesk.Revit.ApplicationServices;
+using Autodesk.Revit.DB.Structure;
+
+namespace Revit.SDK.Samples.FoundationSlab.CS
+{
+   /// <summary>
+   /// A class collecting all useful datas from revit API for UI.
+   /// </summary>
+   public class SlabData
+   {
+      const double PlanarPrecision = 0.00033;
+
+      // For finding elements and creating foundations slabs.
+      public static Autodesk.Revit.UI.UIApplication m_revit;
+      public static Autodesk.Revit.Creation.Application CreApp;
+      // Foundation slab type for creating foundation slabs.
+      FloorType m_foundationSlabType;
+      // A set of levels to find out the lowest level of the building.
+      SortedList<double, Level> m_levelList = new SortedList<double, Level>();
+      // A set of views to find out the regular slab's bounding box.
+      List<View> m_viewList = new List<View>();
+      // A set of floors to find out all the regular slabs at the base of the building.
+      List<Floor> m_floorList = new List<Floor>();
+
+      // A set of regular slabs at the base of the building.
+      // This set supplies all the regular slabs' datas for UI.
+      List<RegularSlab> m_allBaseSlabList = new List<RegularSlab>();
+
+      // A set of  the types of foundation slab.
+      // This set supplies all the types of foundation slab for UI.
+      List<FloorType> m_slabTypeList = new List<FloorType>();
+
+      /// <summary>
+      /// BaseSlabList property.
+      /// This property is for UI. It can be edited by user.
+      /// </summary>
+      public Collection<RegularSlab> BaseSlabList
+      {
+         get { return new Collection<RegularSlab>(m_allBaseSlabList); }
+      }
+
+      /// <summary>
+      /// FoundationSlabTypeList property.
+      /// This property is for UI. It can not be edited by user.
+      /// </summary>
+      public ReadOnlyCollection<FloorType> FoundationSlabTypeList
+      {
+         get { return new ReadOnlyCollection<FloorType>(m_slabTypeList); }
+      }
+
+      /// <summary>
+      /// FoundationSlabType property.
+      /// This property gets value from UI to create foundation slabs.
+      /// </summary>
+      public object FoundationSlabType
+      {
+         set { m_foundationSlabType = value as FloorType; }
+      }
+
+      /// <summary>
+      /// Constructor.
+      /// </summary>
+      /// <param name="revit">An application object that contains data related to revit command.</param>
+      public SlabData(UIApplication revit)
+      {
+         m_revit = revit;
+         CreApp = m_revit.Application.Create;
+         // Find out all useful elements.
+         FindElements();
+         // Get all base slabs. If no slab be found, throw an exception and return cancel.
+         if (!GetAllBaseSlabs())
+            throw new NullReferenceException("No planar slabs at the base of the building.");
+      }
+
+      /// <summary>
+      /// Check whether a regular slab is selected.
+      /// </summary>
+      /// <returns>The bool value suggest being selected or not.</returns>
+      public bool CheckHaveSelected()
+      {
+         foreach (RegularSlab slab in m_allBaseSlabList)
+         {
+            if (slab.Selected)
+               return true;
+         }
+         return false;
+      }
+
+      /// <summary>
+      /// Change the Selected property for all regular slabs.
+      /// </summary>
+      /// <param name="value">The value for Selected property</param>
+      public void ChangeAllSelected(bool value)
+      {
+         foreach (RegularSlab slab in m_allBaseSlabList)
+         {
+            slab.Selected = value;
+         }
+      }
+
+      /// <summary>
+      /// Create foundation slabs.
+      /// </summary>
+      /// <returns>The bool value suggest successful or not.</returns>
+      public bool CreateFoundationSlabs()
+      {
+         // Create a foundation slab for each selected regular slab.
+         foreach (RegularSlab slab in m_allBaseSlabList)
+         {
+            if (!slab.Selected)
+            {
+               continue;
+            }
+
+            // Create a new slab.
+            Autodesk.Revit.DB.XYZ normal = new Autodesk.Revit.DB.XYZ(0, 0, 1);
+            Transaction t = new Transaction(m_revit.ActiveUIDocument.Document, Guid.NewGuid().GetHashCode().ToString());
+            t.Start();
+            Floor foundationSlab = m_revit.ActiveUIDocument.Document.Create.NewFoundationSlab(
+                slab.OctagonalProfile, m_foundationSlabType, m_levelList.Values[0],
+                true, normal);
+            t.Commit();
+            if (null == foundationSlab)
+            {
+               return false;
+            }
+
+            // Delete the regular slab.
+            Transaction t2 = new Transaction(m_revit.ActiveUIDocument.Document, Guid.NewGuid().GetHashCode().ToString());
+            t2.Start();
+            Autodesk.Revit.DB.ElementId deleteSlabId = slab.Id;
+            m_revit.ActiveUIDocument.Document.Delete(deleteSlabId);
+            t2.Commit();
+         }
+         return true;
+      }
+
+      /// <summary>
+      /// Find out all useful elements.
+      /// </summary>
+      private void FindElements()
+      {
+         IList<ElementFilter> filters = new List<ElementFilter>(4);
+         filters.Add(new ElementClassFilter(typeof(Level)));
+         filters.Add(new ElementClassFilter(typeof(View)));
+         filters.Add(new ElementClassFilter(typeof(Floor)));
+         filters.Add(new ElementClassFilter(typeof(FloorType)));
+
+         LogicalOrFilter orFilter = new LogicalOrFilter(filters);
+         FilteredElementCollector collector = new FilteredElementCollector(m_revit.ActiveUIDocument.Document);
+         FilteredElementIterator iterator = collector.WherePasses(orFilter).GetElementIterator();
+         while (iterator.MoveNext())
+         {
+            // Find out all levels.
+            Level level = (iterator.Current) as Level;
+            if (null != level)
+            {
+               m_levelList.Add(level.Elevation, level);
+               continue;
+            }
+
+            // Find out all views.
+            View view = (iterator.Current) as View;
+            if (null != view && !view.IsTemplate)
+            {
+               m_viewList.Add(view);
+               continue;
+            }
+
+            // Find out all floors.
+            Floor floor = (iterator.Current) as Floor;
+            if (null != floor)
+            {
+               m_floorList.Add(floor);
+               continue;
+            }
+
+            // Find out all foundation slab types.
+            FloorType floorType = (iterator.Current) as FloorType;
+            if (null == floorType)
+            {
+               continue;
+            }
+            if ("Structural Foundations" == floorType.Category.Name)
+            {
+               m_slabTypeList.Add(floorType);
+            }
+         }
+      }
+
+      /// <summary>
+      /// Get all base slabs.
+      /// </summary>
+      /// <returns>A bool value suggests successful or not.</returns>
+      private bool GetAllBaseSlabs()
+      {
+         // No level, no slabs.
+         if (0 == m_levelList.Count)
+            return false;
+
+         // Find out the lowest level's view for finding the bounding box of slab.
+         View baseView = null;
+         foreach (View view in m_viewList)
+         {
+            if (view.Name == m_levelList.Values[0].Name)
+            {
+               baseView = view;
+            }
+         }
+         if (null == baseView)
+            return false;
+
+         // Get all slabs at the base of the building.
+         foreach (Floor floor in m_floorList)
+         {
+            if (floor.LevelId.IntegerValue == m_levelList.Values[0].Id.IntegerValue)
+            {
+               BoundingBoxXYZ bbXYZ = floor.get_BoundingBox(baseView);   // Get the slab's bounding box.
+
+               // Check the floor. If the floor is planar, deal with it, otherwise, leap it.
+               if (!IsPlanarFloor(bbXYZ, floor))
+                  continue;
+
+               CurveArray floorProfile = GetFloorProfile(floor);    // Get the slab's profile.
+               RegularSlab regularSlab = new RegularSlab(floor, floorProfile, bbXYZ);   // Get a regular slab.
+               m_allBaseSlabList.Add(regularSlab);  // Add regular slab to the set.
+            }
+         }
+
+         // Getting regular slabs.
+         if (0 != m_allBaseSlabList.Count)
+            return true;
+         else return false;
+      }
+
+      /// <summary>
+      /// Check whether the floor is planar.
+      /// </summary>
+      /// <param name="bbXYZ">The floor's bounding box.</param>
+      /// <param name="floor">The floor object.</param>
+      /// <returns>A bool value suggests the floor is planar or not.</returns>
+      private static bool IsPlanarFloor(BoundingBoxXYZ bbXYZ, Floor floor)
+      {
+         // Get floor thickness.
+         double floorThickness = 0.0;
+         ElementType floorType = m_revit.ActiveUIDocument.Document.GetElement(floor.GetTypeId()) as ElementType;
+         Parameter attribute = floorType.get_Parameter(BuiltInParameter.FLOOR_ATTR_DEFAULT_THICKNESS_PARAM);
+         if (null != attribute)
+         {
+            floorThickness = attribute.AsDouble();
+         }
+
+         // Get bounding box thickness.
+         double boundThickness = Math.Abs(bbXYZ.Max.Z - bbXYZ.Min.Z);
+
+         // Planar or not.
+         if (Math.Abs(boundThickness - floorThickness) < PlanarPrecision)
+            return true;
+         else
+            return false;
+      }
+
+      /// <summary>
+      /// Get a floor's profile.
+      /// </summary>
+      /// <param name="floor">The floor whose profile you want to get.</param>
+      /// <returns>The profile of the floor.</returns>
+      private CurveArray GetFloorProfile(Floor floor)
+      {
+         CurveArray floorProfile = new CurveArray();
+         // Structural slab's profile can be found in it's AnalyticalModel.
+         if (null != floor.GetAnalyticalModel())
+         {
+            AnalyticalModel analyticalModel = floor.GetAnalyticalModel();
+            IList<Curve> curveList = analyticalModel.GetCurves(AnalyticalCurveType.ActiveCurves);
+            for (int i = 0; i < curveList.Count; i++)
+            {
+               floorProfile.Append(curveList[i]);
+            }
+
+            return floorProfile;
+         }
+
+         // Nonstructural floor's profile can be formed through it's Geometry.
+         Options aOptions = m_revit.Application.Create.NewGeometryOptions();
+         Autodesk.Revit.DB.GeometryElement aElementOfGeometry = floor.get_Geometry(aOptions);
+         //GeometryObjectArray geometryObjects = aElementOfGeometry.Objects;
+         IEnumerator<GeometryObject> Objects = aElementOfGeometry.GetEnumerator();
+         //foreach (GeometryObject o in geometryObjects)
+         while (Objects.MoveNext())
+         {
+            GeometryObject o = Objects.Current;
+
+            Solid solid = o as Solid;
+            if (null == solid)
+               continue;
+
+            // Form the floor's profile through solid's edges.
+            EdgeArray edges = solid.Edges;
+            for (int i = 0; i < (edges.Size) / 3; i++)
+            {
+               Edge edge = edges.get_Item(i);
+               List<XYZ> xyzArray = edge.Tessellate() as List<XYZ>;  // A set of points.
+               for (int j = 0; j < (xyzArray.Count - 1); j++)
+               {
+                  Autodesk.Revit.DB.XYZ startPoint = xyzArray[j];
+                  Autodesk.Revit.DB.XYZ endPoint = xyzArray[j + 1];
+                  Line line = Line.CreateBound(startPoint, endPoint);
+
+                  floorProfile.Append(line);
+               }
+            }
+         }
+         return floorProfile;
+      }
+
+   }
+}