Support placing a view / section / diagram on a sheet

src/ifcblenderexport/blenderbim/__init__.py

@@ -62,6 +62,7 @@ classes = (
     operator.AddSubcontext,
     operator.RemoveSubcontext,
     operator.CutSection,
+    operator.CreateSheets,
     prop.Subcontext,
     prop.BIMProperties,
     prop.DocProperties,

src/ifcblenderexport/blenderbim/cut_ifc.py

@@ -598,7 +598,9 @@ class SvgWriter():
             self.output,
             debug=False,
             size=('{}mm'.format(self.width), '{}mm'.format(self.height)),
-            viewBox=('0 0 {} {}'.format(self.width, self.height)))
+            viewBox=('0 0 {} {}'.format(self.width, self.height)),
+            id='root'
+        )
 
         self.add_stylesheet()
         self.add_defs()
@@ -622,7 +624,7 @@ class SvgWriter():
             self.svg.defs.add(self.svg.style(stylesheet.read()))
 
     def add_defs(self):
-        tree = ET.parse('{}styles/defs.svg'.format(self.ifc_cutter.data_dir))
+        tree = ET.parse('{}templates/defs.svg'.format(self.ifc_cutter.data_dir))
         root = tree.getroot()
         for child in root.getchildren():
             self.svg.defs.add(External(child))
@@ -651,11 +653,18 @@ class SvgWriter():
             classes = ['annotation', 'dimension']
             v0 = self.ifc_cutter.annotation_obj.data.vertices[edge.vertices[0]].co
             v1 = self.ifc_cutter.annotation_obj.data.vertices[edge.vertices[1]].co
-            start = ((x_offset + v0.x) * self.scale, (y_offset - v0.y) * self.scale)
-            end = ((x_offset + v1.x) * self.scale, (y_offset - v1.y) * self.scale)
-            line = self.svg.add(self.svg.line(start=start, end=end, class_=' '.join(classes)))
+            start = Vector(((x_offset + v0.x), (y_offset - v0.y)))
+            end = Vector(((x_offset + v1.x), (y_offset - v1.y)))
+            mid = ((end - start) / 2) + start
+            # TODO: hardcoded meters to mm conversion, until I properly do units
+            dimension = (end - start).length * 1000
+            line = self.svg.add(self.svg.line(start=tuple(start * self.scale),
+                end=tuple(end * self.scale), class_=' '.join(classes)))
             line['marker-start'] = 'url(#dimension-marker)'
             line['marker-end'] = 'url(#dimension-marker)'
+            self.svg.add(self.svg.text(str(round(dimension)), insert=tuple(mid * self.scale), **{
+                'font-size': '0.2mm'
+            }))
 
     def draw_cut_polygons(self):
         for polygon in self.ifc_cutter.cut_polygons:

src/ifcblenderexport/blenderbim/data/sheets/sheet1.svg

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns="http://www.w3.org/2000/svg" id="root" version="1.1" height="594mm" width="841mm">
+  <defs />
+  <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <use xlink:href="../templates/titleblock.svg#root" />
+  </svg>
+  <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="150mm" y="50mm">
+    <use xlink:href="../diagrams/Camera.svg#root" />
+  </svg>
+  <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="150mm" y="50mm">
+    <use xlink:href="../templates/view-title.svg#root" />
+  </svg>
+</svg>

src/ifcblenderexport/blenderbim/data/templates/defs.svg

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<svg baseProfile="full" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <marker id="dimension-marker" markerHeight="20" markerWidth="20" refX="7.5" refY="10" orient="auto">
+        <path d="M 7.5 0 L 7.5 20" class="annotation" style="stroke-width:2px;" />
+        <path d="M 0 0 L 15 20" class="annotation" style="stroke-width:3px;" />
+    </marker>
+</svg>

src/ifcblenderexport/blenderbim/data/templates/view-title.svg

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   id="root"
+   version="1.1"
+   viewBox="0 0 50.222462 10"
+   height="10mm"
+   width="50.222462mm">
+  <defs
+     id="defs2" />
+  <metadata
+     id="metadata5">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(-27.82024,-96.649986)"
+     id="layer1">
+    <circle
+       r="4.8499999"
+       cy="101.64999"
+       cx="32.82024"
+       id="path853"
+       style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.30000001;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+    <path
+       id="path855"
+       d="m 37.67024,101.64999 40.37246,-1e-5"
+       style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:0.26458332px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" />
+    <text
+       id="text859"
+       y="102.19775"
+       x="32.820755"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:10.58333302px;line-height:125%;font-family:Arial;-inkscape-font-specification:Arial;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.26458332px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       xml:space="preserve"><tspan
+         style="font-size:2.11666656px;text-align:center;text-anchor:middle;stroke-width:0.26458332px"
+         y="102.19775"
+         x="32.820755"
+         id="tspan857">{{no}}</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:10.58333302px;line-height:125%;font-family:Arial;-inkscape-font-specification:Arial;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.26458332px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       x="39.368858"
+       y="99.525047"
+       id="text863"><tspan
+         id="tspan861"
+         x="39.368858"
+         y="99.525047"
+         style="font-size:2.11666656px;text-align:start;text-anchor:start;stroke-width:0.26458332px">{{name}}</tspan></text>
+    <text
+       id="text867"
+       y="104.66998"
+       x="39.368858"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:10.58333302px;line-height:125%;font-family:Arial;-inkscape-font-specification:Arial;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.26458332px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       xml:space="preserve"><tspan
+         style="font-size:2.11666656px;text-align:start;text-anchor:start;stroke-width:0.26458332px"
+         y="104.66998"
+         x="39.368858"
+         id="tspan865">{{scale}}</tspan></text>
+  </g>
+</svg>

src/ifcblenderexport/blenderbim/operator.py

@@ -7,6 +7,7 @@ import ifcopenshell
 from . import export_ifc
 from . import import_ifc
 from . import cut_ifc
+from . import sheeter
 from bpy_extras.io_utils import ImportHelper
 from itertools import cycle
 from mathutils import Vector
@@ -809,3 +810,13 @@ class CutSection(bpy.types.Operator):
 
     def is_landscape(self):
         return bpy.context.scene.render.resolution_x > bpy.context.scene.render.resolution_y
+
+class CreateSheets(bpy.types.Operator):
+    bl_idname = 'bim.create_sheets'
+    bl_label = 'Create Sheets'
+
+    def execute(self, context):
+        sheet_builder = sheeter.SheetBuilder()
+        sheet_builder.data_dir = bpy.context.scene.BIMProperties.data_dir
+        sheet_builder.build()
+        return {'FINISHED'}

src/ifcblenderexport/blenderbim/sheeter.py

@@ -0,0 +1,51 @@
+import xml.etree.ElementTree as ET
+import pystache
+import ntpath
+import os
+from shutil import copy
+
+class SheetBuilder:
+    def __init__(self):
+        self.data_dir = None
+
+    def build(self):
+        sheet_path = '{}sheets/sheet1.svg'.format(self.data_dir)
+        sheet_filename = ntpath.basename(sheet_path)
+        sheet_name = sheet_filename[0:-4]
+
+        data = [
+            {'number': 'ASDF', 'revision': 'A'},
+            {},
+            {'no': '01', 'name': 'HOUSE', 'scale': '1:100'},
+            {},
+            {'no': '02', 'name': 'ELEVATION', 'scale': '1:100'},
+            {},
+            {'no': '03', 'name': 'PLAN', 'scale': '1:100'},
+            {},
+            {'no': '04', 'name': 'SECTION', 'scale': '1:100'},
+            ]
+        tree = ET.parse(sheet_path)
+        root = tree.getroot()
+        embedded_svgs = root.findall('{http://www.w3.org/2000/svg}svg')
+        n = 0
+        for svg in embedded_svgs:
+            use = svg.findall('{http://www.w3.org/2000/svg}use')[0]
+            source = use.attrib.get('{http://www.w3.org/1999/xlink}href')
+            source_path = source.split('#')[0]
+            source_filename = ntpath.basename(source_path)
+            source_background = '{}diagrams/{}.png'.format(self.data_dir, source_filename[0:-4])
+            source_anchor = source.split('#')[1]
+            dest_filename = '{}-{}.svg'.format(source_filename[0:-4], n)
+            os.makedirs('{}build/{}/'.format(self.data_dir, sheet_name), exist_ok=True)
+            with open('{}build/{}/{}'.format(self.data_dir, sheet_name, dest_filename), 'w') as out:
+                with open('{}sheets/{}'.format(self.data_dir, source_path), 'r') as template:
+                    out.write(pystache.render(template.read(), data[n]))
+                    use.set('{http://www.w3.org/1999/xlink}href',
+                        '{}#{}'.format(dest_filename, source_anchor))
+            # TODO: hardcoded that all diagrams have a raster background
+            if 'diagrams/' in source_path:
+                copy(source_background, '{}build/{}/'.format(self.data_dir, sheet_name))
+            n += 1
+
+        with open('{}build/{}/{}'.format(self.data_dir, sheet_name, sheet_filename), 'wb') as output:
+            tree.write(output)

src/ifcblenderexport/blenderbim/ui.py

@@ -196,6 +196,9 @@ class BIM_PT_documentation(Panel):
         row = layout.row()
         row.operator('bim.cut_section')
 
+        row = layout.row()
+        row.operator('bim.create_sheets')
+
 class BIM_PT_context(Panel):
     bl_label = "Geometric Representation Contexts"
     bl_idname = "BIM_PT_context"