RevitSdkSamples/snapshot/2012/SDK/Samples/AnalysisVisualizationFramework/SpatialFieldGradient/CS/Command.cs

using System;
using System.Linq;
using System.Collections.Generic;
using Autodesk.Revit;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Analysis;
using Autodesk.Revit.UI;

namespace Revit.SDK.Samples.AnalysisVisualizationFramework.CS
{
   [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Automatic)]
   [Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
   public class SpatialFieldGradient : IExternalCommand
   {
      static AddInId m_appId = new AddInId(new Guid("CF099951-E66B-4a35-BF7F-2959CA87A42D"));
      public Autodesk.Revit.UI.Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
      {
         ExternalCommandData cdata = commandData;
         Autodesk.Revit.ApplicationServices.Application app = commandData.Application.Application;
         Document doc = commandData.Application.ActiveUIDocument.Document;
         UIDocument uiDoc = commandData.Application.ActiveUIDocument;

         SpatialFieldManager sfm = SpatialFieldManager.GetSpatialFieldManager(doc.ActiveView);         
         if (sfm == null) sfm = SpatialFieldManager.CreateSpatialFieldManager(doc.ActiveView, 1);

         IList<Reference> refList = new List<Reference>();
         refList = uiDoc.Selection.PickObjects(Autodesk.Revit.UI.Selection.ObjectType.Face);
                 foreach (Reference reference in refList)
                 {

                         IList<UV> uvPts = new List<UV>();

                         List<double> doubleList = new List<double>();
                         IList<ValueAtPoint> valList = new List<ValueAtPoint>();
                         Face face = doc.GetElement(reference).GetGeometryObjectFromReference(reference)as Face;
                         BoundingBoxUV bb = face.GetBoundingBox();
                         UV min = bb.Min;
                         UV max = bb.Max;

                         for (double u = min.U; u < max.U; u += (max.U - min.U) / 10)
                         {
                             for (double v = min.V; v < max.V; v += (max.V - min.V) / 10)
                             {
                                 UV uv = new UV(u, v);
                                 if (face.IsInside(uv))
                                 {
                                     uvPts.Add(uv);
                                     doubleList.Add(v + DateTime.Now.Second);
                                     valList.Add(new ValueAtPoint(doubleList));
                                     doubleList.Clear();
                                 }
                             }
                         }

                         FieldDomainPointsByUV pnts = new FieldDomainPointsByUV(uvPts);
                         FieldValues vals = new FieldValues(valList);
                         int idx = sfm.AddSpatialFieldPrimitive(reference);
                         AnalysisResultSchema resultSchema = new AnalysisResultSchema("Schema 1", "Schema 1 Description"); 
                         sfm.UpdateSpatialFieldPrimitive(idx, pnts, vals, sfm.RegisterResult(resultSchema));
                 }




         return Result.Succeeded;
      }
   }
}