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OCC based tag line generation by extruding the edges cutting through a tag and retreiving the common with the tag solid.

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This commit is contained in:
Markus Lampert
2016-12-10 12:39:23 -08:00
parent 2ea1a7f6d1
commit 240ce6e318
4 changed files with 160 additions and 965 deletions
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18
src/Mod/Path/PathScripts/PathGeom.py
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@@ -130,6 +130,14 @@ class PathGeom:
@classmethod
def cmdsForEdge(cls, edge, flip = False, useHelixForBSpline = True):
"""(edge, flip = False, useHelixForBSpline = True) -> List(Path.Command)
Returns a list of Path.Command representing the given edge.
If flip is True the edge is considered to be backwards.
If useHelixForBSpline is True an Edge based on a BSplineCurve is considered
to represent a helix and results in G2 or G3 command. Otherwise edge has
no direct Path.Command mapping and will be approximated by straight segments.
Approximation is also the approach for edges that are neither straight lines
nor arcs (nor helixes)."""
pt = edge.valueAt(edge.LastParameter) if not flip else edge.valueAt(edge.FirstParameter)
params = {'X': pt.x, 'Y': pt.y, 'Z': pt.z}
if type(edge.Curve) == Part.Line or type(edge.Curve) == Part.LineSegment:
@@ -147,7 +155,7 @@ class PathGeom:
cmd = 'G3'
else:
cmd = 'G2'
print("**** (%.2f, %.2f, %.2f) - (%.2f, %.2f, %.2f) - (%.2f, %.2f, %.2f)" % (p1.x, p1.y, p1.z, p2.x, p2.y, p2.z, p3.x, p3.y, p3.z))
#print("**** (%.2f, %.2f, %.2f) - (%.2f, %.2f, %.2f) - (%.2f, %.2f, %.2f)" % (p1.x, p1.y, p1.z, p2.x, p2.y, p2.z, p3.x, p3.y, p3.z))
pd = Part.Circle(PathGeom.xy(p1), PathGeom.xy(p2), PathGeom.xy(p3)).Center
pa = PathGeom.xy(p1)
@@ -168,7 +176,7 @@ class PathGeom:
# at this point pixellation is all we can do
commands = []
segments = int(math.ceil((deviation / eStraight.Length) * 1000))
print("**** pixellation with %d segments" % segments)
#print("**** pixellation with %d segments" % segments)
dParameter = (edge.LastParameter - edge.FirstParameter) / segments
for i in range(0, segments):
if flip:
@@ -176,7 +184,7 @@ class PathGeom:
else:
p = edge.valueAt(edge.FirstParameter + (i + 1) * dParameter)
cmd = Path.Command('G1', {'X': p.x, 'Y': p.y, 'Z': p.z})
print("***** %s" % cmd)
#print("***** %s" % cmd)
commands.append(cmd)
#print commands
return commands
@@ -280,8 +288,8 @@ class PathGeom:
params.update({'Z': z1, 'K': (z1 - z0)/2})
command = Path.Command(cmd.Name, params)
print("- (%.2f, %.2f, %.2f) - (%.2f, %.2f, %.2f): %.2f:%.2f" % (edge.Vertexes[0].X, edge.Vertexes[0].Y, edge.Vertexes[0].Z, edge.Vertexes[1].X, edge.Vertexes[1].Y, edge.Vertexes[1].Z, z0, z1))
print("- %s -> %s" % (cmd, command))
#print("- (%.2f, %.2f, %.2f) - (%.2f, %.2f, %.2f): %.2f:%.2f" % (edge.Vertexes[0].X, edge.Vertexes[0].Y, edge.Vertexes[0].Z, edge.Vertexes[1].X, edge.Vertexes[1].Y, edge.Vertexes[1].Z, z0, z1))
#print("- %s -> %s" % (cmd, command))
return cls.edgeForCmd(command, FreeCAD.Vector(p1.x, p1.y, z0))