def est_curve_length(ob: Object) -> float:
if ob.modifiers:
# Reset curve
# ---------------------------
settings = {
"bevel_object": None,
"bevel_depth": 0.0,
"extrude": 0.0,
}
for k, v in settings.items():
x = getattr(ob.data, k)
setattr(ob.data, k, v)
settings[k] = x
# Calculate length
# ---------------------------
depsgraph = bpy.context.evaluated_depsgraph_get()
ob_eval = ob.evaluated_get(depsgraph)
me = ob_eval.to_mesh()
me.transform(ob.matrix_world)
bm = bmesh.new()
bm.from_mesh(me)
ob_eval.to_mesh_clear()
length = 0.0
for edge in bm.edges:
length += edge.calc_length()
bm.free()
# Restore curve
# ---------------------------
for k, v in settings.items():
setattr(ob.data, k, v)
else:
curve = ob.data.copy()
curve.transform(ob.matrix_world)
length = 0.0
for spline in curve.splines:
length += spline.calc_length()
bpy.data.curves.remove(curve)
return length
def new_mesh_from_object(obj: Object):
unlink_later = False
depsgraph = bpy.context.evaluated_depsgraph_get()
# link the object if it's not in the scene, because otherwise the evaluated data may be outdated (e.g. after file is reopened)
if obj.name not in bpy.context.scene.objects:
link_object(obj)
depsgraph_update()
unlink_later = True
obj_eval = obj.evaluated_get(depsgraph)
if unlink_later:
unlink_object(obj)
return bpy.data.meshes.new_from_object(obj_eval)
def new_mesh_from_object(obj: Object):
depsgraph = bpy.context.evaluated_depsgraph_get()
obj_eval = obj.evaluated_get(depsgraph)
return bpy.data.meshes.new_from_object(obj_eval)
