Measurement path length in Blender Script?
In Blender (v2.48), how can I determine the length of a path (in Blender units) from a Python script?
The value is available from the graphical interface: when the path is selected, the edit panel contains the PrintLen button. When the button is pressed, the length is displayed on the right.
How can I get this value programmatically from a Python script running in Blender?
Note. I am not interested in the PathLen value that is in frames, not Blender units.
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The best idea I have found is to create a mesh from the path and sum the length of the segments (edges).
import Blender
def get_length(path):
"""
Return the length (in Blender distance units) of the path.
"""
mesh = Blender.Mesh.New()
mesh.getFromObject(path)
return sum(edge.length for edge in mesh.edges)
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