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Improved precision and stability of splitting an arc

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This commit is contained in:
Markus Lampert
2020-02-03 20:45:33 -08:00
parent da71719896
commit abb2865e3a
4 changed files with 46 additions and 25 deletions
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20
src/Mod/Path/PathScripts/PathGeom.py
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@@ -433,22 +433,10 @@ def splitArcAt(edge, pt):
"""splitArcAt(edge, pt)
Returns a list of 2 edges which together form the original arc split at the given point.
The Vector pt has to represent a point on the given arc."""
p1 = edge.valueAt(edge.FirstParameter)
p2 = pt
p3 = edge.valueAt(edge.LastParameter)
edges = []
p = edge.Curve.parameter(p2)
#print("splitArcAt(%.2f, %.2f, %.2f): %.2f - %.2f - %.2f" % (pt.x, pt.y, pt.z, edge.FirstParameter, p, edge.LastParameter))
p12 = edge.Curve.value((edge.FirstParameter + p)/2)
p23 = edge.Curve.value((p + edge.LastParameter)/2)
#print("splitArcAt: p12=(%.2f, %.2f, %.2f) p23=(%.2f, %.2f, %.2f)" % (p12.x, p12.y, p12.z, p23.x, p23.y, p23.z))
edges.append(Part.Edge(Part.Arc(p1, p12, p2)))
edges.append(Part.Edge(Part.Arc(p2, p23, p3)))
return edges
p = edge.Curve.parameter(pt)
e0 = Part.Arc(edge.Curve.copy(), edge.FirstParameter, p).toShape()
e1 = Part.Arc(edge.Curve.copy(), p, edge.LastParameter).toShape()
return [e0, e1]
def splitEdgeAt(edge, pt):
"""splitEdgeAt(edge, pt)