Convenience operator to draw rectangles when editing profiles

src/blenderbim/blenderbim/bim/module/cad/__init__.py

@@ -23,6 +23,7 @@ classes = (
     operator.AlignViewToProfile,
     operator.AddIfcArcIndexFillet,
     operator.AddIfcCircle,
+    operator.AddRectangle,
     operator.CadArcFrom2Points,
     operator.CadArcFrom3Points,
     operator.CadFillet,

src/blenderbim/blenderbim/bim/module/cad/operator.py

@@ -781,3 +781,33 @@ class AlignViewToProfile(bpy.types.Operator):
         region_3d.view_perspective = "ORTHO"
         bpy.ops.object.mode_set(mode="EDIT")
         return {"FINISHED"}
+
+
+class AddRectangle(bpy.types.Operator):
+    bl_idname = "bim.add_rectangle"
+    bl_label = "Add Rectangle"
+    x: bpy.props.FloatProperty(name="X", default=0.1)
+    y: bpy.props.FloatProperty(name="Y", default=0.1)
+
+    @classmethod
+    def poll(cls, context):
+        obj = context.active_object
+        return bool(obj) and obj.type == "MESH"
+
+    def execute(self, context):
+        obj = context.active_object
+        bm = bmesh.from_edit_mesh(obj.data)
+        cursor = obj.matrix_world.inverted() @ context.scene.cursor.location
+        new_verts = [
+            bm.verts.new((cursor[0], cursor[1], 0.0)),
+            bm.verts.new((cursor[0] + self.x, cursor[1], 0.0)),
+            bm.verts.new((cursor[0] + self.x, cursor[1] + self.y, 0.0)),
+            bm.verts.new((cursor[0], cursor[1] + self.y, 0.0)),
+        ]
+        [bm.edges.new((new_verts[i], new_verts[i + 1])) for i in range(len(new_verts) - 1)]
+        bm.edges.new((new_verts[len(new_verts) - 1], new_verts[0]))
+
+        bm.verts.index_update()
+        bm.edges.index_update()
+        bmesh.update_edit_mesh(obj.data)
+        return {"FINISHED"}

src/blenderbim/blenderbim/bim/module/cad/prop.py

@@ -26,3 +26,5 @@ class BIMCadProperties(PropertyGroup):
     resolution: bpy.props.IntProperty(name="Arc Resolution", min=1, default=1)
     radius: bpy.props.FloatProperty(name="Radius", default=0.1)
     distance: bpy.props.FloatProperty(name="Distance", default=0.1)
+    x: bpy.props.FloatProperty(name="X", default=0.2)
+    y: bpy.props.FloatProperty(name="Y", default=0.1)

src/blenderbim/blenderbim/bim/module/cad/workspace.py

@@ -39,6 +39,7 @@ class CadTool(WorkSpaceTool):
         ("bim.cad_hotkey", {"type": "F", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_F")]}),
         ("bim.cad_hotkey", {"type": "O", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_O")]}),
         ("bim.cad_hotkey", {"type": "Q", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_Q")]}),
+        ("bim.cad_hotkey", {"type": "R", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_R")]}),
         ("bim.cad_hotkey", {"type": "T", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_T")]}),
         ("bim.cad_hotkey", {"type": "V", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_V")]}),
         ("bim.cad_hotkey", {"type": "X", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_X")]}),
@@ -74,6 +75,11 @@ class CadTool(WorkSpaceTool):
             row.label(text="", icon="EVENT_O")
             row.operator("bim.cad_hotkey", text="Offset").hotkey = "S_O"
 
+            row = layout.row(align=True)
+            row.label(text="", icon="EVENT_SHIFT")
+            row.label(text="", icon="EVENT_R")
+            row.operator("bim.add_rectangle", text="Rectangle")
+
             row = layout.row(align=True)
             row.label(text="", icon="EVENT_SHIFT")
             row.label(text="", icon="EVENT_C")
@@ -145,6 +151,11 @@ class CadHotkey(bpy.types.Operator):
         elif self.hotkey == "S_O":
             row = self.layout.row()
             row.prop(props, "distance")
+        elif self.hotkey == "S_R":
+            row = self.layout.row()
+            row.prop(props, "x")
+            row = self.layout.row()
+            row.prop(props, "y")
         elif self.hotkey == "S_V":
             if not self.is_profile():
                 row = self.layout.row()
@@ -171,6 +182,10 @@ class CadHotkey(bpy.types.Operator):
     def hotkey_S_Q(self):
         bpy.ops.bim.edit_extrusion_profile()
 
+    def hotkey_S_R(self):
+        if self.is_profile():
+            bpy.ops.bim.add_rectangle(x=self.props.x, y=self.props.y)
+
     def hotkey_S_T(self):
         bpy.ops.bim.cad_mitre()