You can now pick the vector style for each drawing style

src/ifcblenderexport/blenderbim/bim/cut_ifc.py

@@ -156,6 +156,7 @@ class IfcCutter:
         self.template_variables = {}
         self.metadata = {}
         self.data_dir = ''
+        self.vector_style = ''
         self.ifc_filenames = []
         self.ifc_files = {}
         self.resolved_pixels = set()

src/ifcblenderexport/blenderbim/bim/data/styles/default.css

@@ -2,11 +2,11 @@
 .background { fill: white; stroke: black; stroke-linecap: 'round'; stroke-width: 0.25; }
 .annotation { fill: none; stroke: black; stroke-linecap: 'round'; stroke-width: 0.25; }
 .hidden { stroke-dasharray: 3, 2; }
+.solid {}
 .leader { marker-end: url(#leader-marker); }
 .stair { marker-start: url(#stair-marker-start); marker-end: url(#stair-marker-end); }
 .break { fill: white; }
 .breakline { fill: none; stroke: black; stroke-linecap: 'round'; stroke-width: 0.25; marker-mid: url(#breakline-marker); }
-.solid {}
 .material-blank { fill: white; }
 .material-diagonal1 { fill: url(#diagonal1); }
 .material-diagonal2 { fill: url(#diagonal2); }
@@ -21,4 +21,4 @@
 .material-grass { fill: url(#grass); }
 .material-honeycomb { fill: url(#honeycomb); }
 .material-sand { fill: url(#sand); }
-.material-concrete { fill: url(#concrete); }
+.material-concrete { fill: url(#concrete); stroke-width: 0.5; }

src/ifcblenderexport/blenderbim/bim/data/styles/sample.css

@@ -0,0 +1,9 @@
+.cut { fill: white; stroke: black; stroke-linecap: 'round'; stroke-width: 0.35; }
+.background { fill: white; stroke: black; stroke-linecap: 'round'; stroke-width: 0.25; }
+.annotation { fill: none; stroke: black; stroke-linecap: 'round'; stroke-width: 0.25; }
+.hidden { stroke-dasharray: 3, 2; }
+.solid {}
+.leader { marker-end: url(#leader-marker); }
+.stair { marker-start: url(#stair-marker-start); marker-end: url(#stair-marker-end); }
+.break { fill: white; }
+.breakline { fill: none; stroke: black; stroke-linecap: 'round'; stroke-width: 0.25; marker-mid: url(#breakline-marker); }

src/ifcblenderexport/blenderbim/bim/operator.py

@@ -2066,6 +2066,7 @@ class CutSection(bpy.types.Operator):
         import ifccsv
         ifc_cutter.ifc_filenames = [i.name for i in bpy.context.scene.DocProperties.ifc_files]
         ifc_cutter.data_dir = bpy.context.scene.BIMProperties.data_dir
+        ifc_cutter.vector_style = bpy.context.scene.DocProperties.drawing_styles[camera.data.BIMCameraProperties.active_drawing_style_index].vector_style
         ifc_cutter.diagram_name = self.diagram_name
         ifc_cutter.background_image = bpy.context.scene.render.filepath
         if camera.data.BIMCameraProperties.cut_objects == 'CUSTOM':

src/ifcblenderexport/blenderbim/bim/prop.py

@@ -49,6 +49,7 @@ target_views_enum = []
 persons_enum = []
 organisations_enum = []
 sheets_enum = []
+vector_styles_enum = []
 bcfviewpoints_enum = []
 
 @persistent
@@ -416,6 +417,16 @@ def getSheets(self, context):
     return sheets_enum
 
 
+def getVectorStyles(self, context):
+    global vector_styles_enum
+    if len(vector_styles_enum) < 1:
+        sheets_enum.clear()
+        for filename in Path(os.path.join(context.scene.BIMProperties.data_dir, 'styles')).glob('*.css'):
+            f = str(filename.stem)
+            vector_styles_enum.append((f, f, ''))
+    return vector_styles_enum
+
+
 def refreshFontSize(self, context):
     annotation.Annotator.resize_text(context.active_object)
 
@@ -443,7 +454,7 @@ class Drawing(PropertyGroup):
 class DrawingStyle(PropertyGroup):
     name: StringProperty(name='Name')
     raster_style: StringProperty(name='Raster Style')
-    vector_style: StringProperty(name='Vector Style')
+    vector_style: EnumProperty(items=getVectorStyles, name='Vector Style')
     include_query: StringProperty(name='Include Query')
     exclude_query: StringProperty(name='Exclude Query')
 

src/ifcblenderexport/blenderbim/bim/svgwriter.py

@@ -70,7 +70,7 @@ class SvgWriter():
         self.height = self.raw_height * self.scale
 
     def add_stylesheet(self):
-        with open('{}styles/default.css'.format(self.ifc_cutter.data_dir), 'r') as stylesheet:
+        with open('{}styles/{}.css'.format(self.ifc_cutter.data_dir, self.ifc_cutter.vector_style), 'r') as stylesheet:
             self.svg.defs.add(self.svg.style(stylesheet.read()))
 
     def add_markers(self):