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Given some flat geometry, it’s often useful to find the curve that represents the center line of that geometry, called the straight skeleton. Uses include bevelling text, defining the top edge for a house roof, center line for roads and paths.
Resample the input and output curves
Remove the Y end pieces that are common in straight skeletons
Size Threshold for deleting the end pieces
Fit to Shape
Extends the skeleton ends torwards the original curve