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https://github.com/IfcOpenShell/IfcOpenShell.git
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Bundle bpypolyskel so that users can start playing with the hipped roof generator
This commit is contained in:
Dion Moult
@@ -655,6 +655,13 @@ endif
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cd dist/working/ && cp -r pkg_resources ../blenderbim/libs/site/packages/
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rm -rf dist/working
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# Required for hipped roof generation
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mkdir dist/working
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cd dist/working && wget https://github.com/prochitecture/bpypolyskel/archive/refs/heads/master.zip
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cd dist/working && unzip master.zip
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cp -r dist/working/bpypolyskel-master/bpypolyskel dist/blenderbim/libs/site/packages/
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rm -rf dist/working
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cd dist/blenderbim && $(SED) "s/999999/$(VERSION)/" __init__.py
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cd dist && zip -r blenderbim-$(VERSION)-$(PYVERSION)-$(PLATFORM).zip ./*
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rm -rf dist/blenderbim
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@@ -25,6 +25,7 @@ from . import (
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array,
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product,
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wall,
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roof,
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slab,
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space,
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stair,
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@@ -48,7 +49,6 @@ classes = (
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product.AddEmptyType,
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product.AlignProduct,
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product.ChangeTypePage,
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product.GenerateHippedRoof,
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product.LoadTypeThumbnails,
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workspace.Hotkey,
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wall.AlignWall,
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@@ -77,6 +77,7 @@ classes = (
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profile.ExtendProfile,
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profile.RecalculateProfile,
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profile.Rotate90,
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roof.GenerateHippedRoof,
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slab.DisableEditingExtrusionProfile,
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slab.DisableEditingSketchExtrusionProfile,
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slab.EditExtrusionProfile,
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@@ -516,93 +516,3 @@ def ensure_material_unassigned(usecase_path, ifc_file, settings):
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obj.active_material_index = i - total_removed
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bpy.ops.object.material_slot_remove({"object": obj})
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total_removed += 1
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class GenerateHippedRoof(bpy.types.Operator, tool.Ifc.Operator):
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bl_idname = "bim.generate_hipped_roof"
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bl_label = "Generate Hipped Roof"
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bl_options = {"REGISTER"}
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mode: bpy.props.StringProperty(default="ANGLE")
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height: bpy.props.FloatProperty(default=1)
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angle: bpy.props.FloatProperty(default=10)
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def _execute(self, context):
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import bmesh
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import shapely
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from math import tan, radians
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from bpypolyskel import bpypolyskel
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obj = bpy.context.active_object
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if not obj:
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return
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boundary_lines = []
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for edge in obj.data.edges:
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boundary_lines.append(
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shapely.LineString([obj.data.vertices[edge.vertices[0]].co, obj.data.vertices[edge.vertices[1]].co])
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)
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unioned_boundaries = shapely.union_all(shapely.GeometryCollection(boundary_lines))
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closed_polygons = shapely.polygonize(unioned_boundaries.geoms)
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roof_polygon = None
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biggest_area = 0
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for polygon in closed_polygons.geoms:
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area = polygon.area
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if area > biggest_area:
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roof_polygon = polygon
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biggest_area = area
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roof_polygon = shapely.force_3d(roof_polygon)
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if not shapely.is_ccw(roof_polygon):
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roof_polygon = roof_polygon.reverse()
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# Define vertices for the base footprint of the building at height 0.0
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# counterclockwise order
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verts = [Vector(v) for v in roof_polygon.exterior.coords[0:-1]]
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total_exterior_verts = len(verts)
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next_index = total_exterior_verts
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inner_loops = None
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for interior in roof_polygon.interiors:
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if inner_loops is None:
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inner_loops = []
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loop = interior.coords[0:-1]
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total_verts = len(loop)
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verts.extend([Vector(v) for v in loop])
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inner_loops.append((next_index, total_verts))
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next_index += total_verts
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unit_vectors = None # we have no unit vectors, let them computed by polygonize()
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start_exterior_index = 0
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faces = []
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if self.mode == "HEIGHT":
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height = self.height
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angle = 0.0
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else:
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angle = tan(radians(round(self.angle, 4)))
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height = 0.0
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faces = bpypolyskel.polygonize(
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verts, start_exterior_index, total_exterior_verts, inner_loops, height, angle, faces, unit_vectors
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)
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edges = []
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mesh = bpy.data.meshes.new(name="Building_with_Roof")
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mesh.from_pydata(verts, edges, faces)
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bm = bmesh.new()
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bm.from_mesh(mesh)
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extrusion = bmesh.ops.extrude_face_region(bm, geom=bm.faces)
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extruded_verts = [g for g in extrusion["geom"] if isinstance(g, bmesh.types.BMVert)]
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bmesh.ops.translate(bm, vec=[0.0, 0.0, 0.1], verts=extruded_verts)
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bm.to_mesh(mesh)
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bm.free()
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obj.data = mesh
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@@ -0,0 +1,111 @@
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# BlenderBIM Add-on - OpenBIM Blender Add-on
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# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of BlenderBIM Add-on.
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#
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# BlenderBIM Add-on is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# BlenderBIM Add-on is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with BlenderBIM Add-on. If not, see <http://www.gnu.org/licenses/>.
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import bpy
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import bmesh
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import shapely
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import blenderbim.tool as tool
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from math import tan, radians
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from mathutils import Vector, Matrix
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from bpypolyskel import bpypolyskel
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class GenerateHippedRoof(bpy.types.Operator, tool.Ifc.Operator):
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bl_idname = "bim.generate_hipped_roof"
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bl_label = "Generate Hipped Roof"
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bl_options = {"REGISTER"}
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mode: bpy.props.StringProperty(default="ANGLE")
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height: bpy.props.FloatProperty(default=1)
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angle: bpy.props.FloatProperty(default=10)
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def _execute(self, context):
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obj = bpy.context.active_object
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if not obj:
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return
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boundary_lines = []
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for edge in obj.data.edges:
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boundary_lines.append(
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shapely.LineString([obj.data.vertices[edge.vertices[0]].co, obj.data.vertices[edge.vertices[1]].co])
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)
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unioned_boundaries = shapely.union_all(shapely.GeometryCollection(boundary_lines))
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closed_polygons = shapely.polygonize(unioned_boundaries.geoms)
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roof_polygon = None
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biggest_area = 0
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for polygon in closed_polygons.geoms:
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area = polygon.area
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if area > biggest_area:
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roof_polygon = polygon
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biggest_area = area
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roof_polygon = shapely.force_3d(roof_polygon)
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if not shapely.is_ccw(roof_polygon):
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roof_polygon = roof_polygon.reverse()
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# Define vertices for the base footprint of the building at height 0.0
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# counterclockwise order
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verts = [Vector(v) for v in roof_polygon.exterior.coords[0:-1]]
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total_exterior_verts = len(verts)
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next_index = total_exterior_verts
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inner_loops = None
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for interior in roof_polygon.interiors:
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if inner_loops is None:
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inner_loops = []
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loop = interior.coords[0:-1]
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total_verts = len(loop)
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verts.extend([Vector(v) for v in loop])
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inner_loops.append((next_index, total_verts))
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next_index += total_verts
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unit_vectors = None # we have no unit vectors, let them computed by polygonize()
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start_exterior_index = 0
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faces = []
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if self.mode == "HEIGHT":
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height = self.height
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angle = 0.0
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else:
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angle = tan(radians(round(self.angle, 4)))
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height = 0.0
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faces = bpypolyskel.polygonize(
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verts, start_exterior_index, total_exterior_verts, inner_loops, height, angle, faces, unit_vectors
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)
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edges = []
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mesh = bpy.data.meshes.new(name="Building_with_Roof")
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mesh.from_pydata(verts, edges, faces)
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bm = bmesh.new()
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bm.from_mesh(mesh)
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extrusion = bmesh.ops.extrude_face_region(bm, geom=bm.faces)
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extruded_verts = [g for g in extrusion["geom"] if isinstance(g, bmesh.types.BMVert)]
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bmesh.ops.translate(bm, vec=[0.0, 0.0, 0.1], verts=extruded_verts)
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bm.to_mesh(mesh)
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bm.free()
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obj.data = mesh
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