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Calculate position of hidden lines in views in absolute coordinates

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Very useful for creating projection lines in axonometrics
This commit is contained in:
Dion Moult
2020-03-10 18:28:03 +11:00
parent c6e10abc51
commit 608abf2e55
1 changed files with 5 additions and 2 deletions
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src/ifcblenderexport/blenderbim/cut_ifc.py
+5 -2
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@@ -775,10 +775,13 @@ class SvgWriter():
})) }))
if self.ifc_cutter.hidden_obj: if self.ifc_cutter.hidden_obj:
matrix_world = self.ifc_cutter.hidden_obj.matrix_world
for edge in self.ifc_cutter.hidden_obj.data.edges: for edge in self.ifc_cutter.hidden_obj.data.edges:
classes = ['annotation', 'hidden'] classes = ['annotation', 'hidden']
v0 = self.ifc_cutter.hidden_obj.data.vertices[edge.vertices[0]].co v0_global = matrix_world @ self.ifc_cutter.hidden_obj.data.vertices[edge.vertices[0]].co.xyz
v1 = self.ifc_cutter.hidden_obj.data.vertices[edge.vertices[1]].co v1_global = matrix_world @ self.ifc_cutter.hidden_obj.data.vertices[edge.vertices[1]].co.xyz
v0 = self.project_point_onto_camera(v0_global)
v1 = self.project_point_onto_camera(v1_global)
start = Vector(((x_offset + v0.x), (y_offset - v0.y))) start = Vector(((x_offset + v0.x), (y_offset - v0.y)))
end = Vector(((x_offset + v1.x), (y_offset - v1.y))) end = Vector(((x_offset + v1.x), (y_offset - v1.y)))
vector = end - start vector = end - start