freecad-cam/Mod/CAM/CAMTests/TestPathOpUtil.py
2026-02-01 01:59:24 +01:00

930 lines
37 KiB
Python

# -*- coding: utf-8 -*-
# ***************************************************************************
# * Copyright (c) 2018 sliptonic <shopinthewoods@gmail.com> *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * This program is distributed in the hope that it will be useful, *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
# * GNU Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with this program; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * *
# ***************************************************************************
import FreeCAD
import Part
import Path
import Path.Op.Util as PathOpUtil
import CAMTests.PathTestUtils as PathTestUtils
import math
from FreeCAD import Vector
Path.Log.setLevel(Path.Log.Level.INFO, Path.Log.thisModule())
# Path.Log.trackModule(Path.Log.thisModule())
DOC = FreeCAD.getHomePath() + "Mod/CAM/CAMTests/test_geomop.fcstd"
def getWire(obj, nr=0):
return obj.Tip.Profile[0].Shape.Wires[nr]
def getWireInside(obj):
w1 = getWire(obj, 0)
w2 = getWire(obj, 1)
if w2.BoundBox.isInside(w1.BoundBox):
return w1
return w2
def getWireOutside(obj):
w1 = getWire(obj, 0)
w2 = getWire(obj, 1)
if w2.BoundBox.isInside(w1.BoundBox):
return w2
return w1
def getPositiveShape(obj):
return obj.Tool.Shape
def getNegativeShape(obj):
return obj.Shape
def makeWire(pts):
edges = []
first = pts[0]
last = pts[0]
for p in pts[1:]:
edges.append(Part.Edge(Part.LineSegment(last, p)))
last = p
edges.append(Part.Edge(Part.LineSegment(last, first)))
return Part.Wire(edges)
def wireMarkers(wire):
pts = [wire.Edges[0].valueAt(wire.Edges[0].FirstParameter)]
for edge in wire.Edges:
pts.append(edge.valueAt(edge.LastParameter))
return pts
class TestPathOpUtil(PathTestUtils.PathTestBase):
@classmethod
def setUpClass(cls):
FreeCAD.ConfigSet("SuppressRecomputeRequiredDialog", "True")
cls.doc = FreeCAD.openDocument(DOC)
FreeCAD.ConfigSet("SuppressRecomputeRequiredDialog", "")
@classmethod
def tearDownClass(cls):
FreeCAD.closeDocument(cls.doc.Name)
def test00(self):
"""Verify isWireClockwise for polygon wires."""
pa = Vector(1, 1, 0)
pb = Vector(1, 5, 0)
pc = Vector(5, 5, 0)
pd = Vector(5, 1, 0)
self.assertTrue(PathOpUtil.isWireClockwise(makeWire([pa, pb, pc, pd])))
self.assertFalse(PathOpUtil.isWireClockwise(makeWire([pa, pd, pc, pb])))
def test01(self):
"""Verify isWireClockwise for single edge circle wires."""
self.assertTrue(
PathOpUtil.isWireClockwise(Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, -1)))
)
self.assertFalse(
PathOpUtil.isWireClockwise(Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, +1)))
)
def test02(self):
"""Verify isWireClockwise for two half circle wires."""
e0 = Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, -1), 0, 180)
e1 = Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, -1), 180, 360)
self.assertTrue(PathOpUtil.isWireClockwise(Part.Wire([e0, e1])))
e0 = Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, +1), 0, 180)
e1 = Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, +1), 180, 360)
self.assertFalse(PathOpUtil.isWireClockwise(Part.Wire([e0, e1])))
def test03(self):
"""Verify isWireClockwise for two edge wires with an arc."""
e0 = Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, -1), 0, 180)
e2 = Part.makeLine(e0.valueAt(e0.LastParameter), e0.valueAt(e0.FirstParameter))
self.assertTrue(PathOpUtil.isWireClockwise(Part.Wire([e0, e2])))
e0 = Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, +1), 0, 180)
e2 = Part.makeLine(e0.valueAt(e0.LastParameter), e0.valueAt(e0.FirstParameter))
self.assertFalse(PathOpUtil.isWireClockwise(Part.Wire([e0, e2])))
def test04(self):
"""Verify isWireClockwise for unoriented wires."""
e0 = Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, -1), 0, 180)
e3 = Part.makeLine(e0.valueAt(e0.FirstParameter), e0.valueAt(e0.LastParameter))
self.assertTrue(PathOpUtil.isWireClockwise(Part.Wire([e0, e3])))
e0 = Part.makeCircle(5, Vector(1, 2, 3), Vector(0, 0, +1), 0, 180)
e3 = Part.makeLine(e0.valueAt(e0.FirstParameter), e0.valueAt(e0.LastParameter))
self.assertFalse(PathOpUtil.isWireClockwise(Part.Wire([e0, e3])))
def test11(self):
"""Check offsetting a circular hole."""
obj = self.doc.getObjectsByLabel("offset-circle")[0]
small = getWireInside(obj)
self.assertRoughly(10, small.Edges[0].Curve.Radius)
wire = PathOpUtil.offsetWire(small, obj.Shape, 3, True)
self.assertIsNotNone(wire)
self.assertEqual(1, len(wire.Edges))
self.assertRoughly(7, wire.Edges[0].Curve.Radius)
self.assertCoincide(Vector(0, 0, 1), wire.Edges[0].Curve.Axis)
wire = PathOpUtil.offsetWire(small, obj.Shape, 9.9, True)
self.assertIsNotNone(wire)
self.assertEqual(1, len(wire.Edges))
self.assertRoughly(0.1, wire.Edges[0].Curve.Radius)
self.assertCoincide(Vector(0, 0, 1), wire.Edges[0].Curve.Axis)
def test12(self):
"""Check offsetting a circular hole by the radius or more makes the hole vanish."""
obj = self.doc.getObjectsByLabel("offset-circle")[0]
small = getWireInside(obj)
self.assertRoughly(10, small.Edges[0].Curve.Radius)
wire = PathOpUtil.offsetWire(small, obj.Shape, 10, True)
self.assertIsNone(wire)
wire = PathOpUtil.offsetWire(small, obj.Shape, 15, True)
self.assertIsNone(wire)
def test13(self):
"""Check offsetting a cylinder succeeds."""
obj = self.doc.getObjectsByLabel("offset-circle")[0]
big = getWireOutside(obj)
self.assertRoughly(20, big.Edges[0].Curve.Radius)
wire = PathOpUtil.offsetWire(big, obj.Shape, 10, True)
self.assertIsNotNone(wire)
self.assertEqual(1, len(wire.Edges))
self.assertRoughly(30, wire.Edges[0].Curve.Radius)
self.assertCoincide(Vector(0, 0, -1), wire.Edges[0].Curve.Axis)
wire = PathOpUtil.offsetWire(big, obj.Shape, 20, True)
self.assertIsNotNone(wire)
self.assertEqual(1, len(wire.Edges))
self.assertRoughly(40, wire.Edges[0].Curve.Radius)
self.assertCoincide(Vector(0, 0, -1), wire.Edges[0].Curve.Axis)
def test14(self):
"""Check offsetting a hole with Placement."""
obj = self.doc.getObjectsByLabel("offset-placement")[0]
wires = [
w
for w in obj.Shape.Wires
if 1 == len(w.Edges) and Path.Geom.isRoughly(0, w.Edges[0].Vertexes[0].Point.z)
]
self.assertEqual(2, len(wires))
w = wires[1] if wires[0].BoundBox.isInside(wires[1].BoundBox) else wires[0]
self.assertRoughly(10, w.Edges[0].Curve.Radius)
# make sure there is a placement and I didn't mess up the model
self.assertFalse(Path.Geom.pointsCoincide(Vector(), w.Edges[0].Placement.Base))
wire = PathOpUtil.offsetWire(w, obj.Shape, 2, True)
self.assertIsNotNone(wire)
self.assertEqual(1, len(wire.Edges))
self.assertRoughly(8, wire.Edges[0].Curve.Radius)
self.assertCoincide(Vector(0, 0, 0), wire.Edges[0].Curve.Center)
self.assertCoincide(Vector(0, 0, 1), wire.Edges[0].Curve.Axis)
def test15(self):
"""Check offsetting a cylinder with Placement."""
obj = self.doc.getObjectsByLabel("offset-placement")[0]
wires = [
w
for w in obj.Shape.Wires
if 1 == len(w.Edges) and Path.Geom.isRoughly(0, w.Edges[0].Vertexes[0].Point.z)
]
self.assertEqual(2, len(wires))
w = wires[0] if wires[0].BoundBox.isInside(wires[1].BoundBox) else wires[1]
self.assertRoughly(20, w.Edges[0].Curve.Radius)
# make sure there is a placement and I didn't mess up the model
self.assertFalse(Path.Geom.pointsCoincide(Vector(), w.Edges[0].Placement.Base))
wire = PathOpUtil.offsetWire(w, obj.Shape, 2, True)
self.assertIsNotNone(wire)
self.assertEqual(1, len(wire.Edges))
self.assertRoughly(22, wire.Edges[0].Curve.Radius)
self.assertCoincide(Vector(0, 0, 0), wire.Edges[0].Curve.Center)
self.assertCoincide(Vector(0, 0, -1), wire.Edges[0].Curve.Axis)
def test20(self):
"""Check offsetting hole wire succeeds."""
obj = self.doc.getObjectsByLabel("offset-edge")[0]
small = getWireInside(obj)
# sanity check
y = 10
x = 10 * math.cos(math.pi / 6)
self.assertLines(
small.Edges,
False,
[
Vector(0, y, 0),
Vector(-x, -y / 2, 0),
Vector(x, -y / 2, 0),
Vector(0, y, 0),
],
)
wire = PathOpUtil.offsetWire(small, obj.Shape, 3, True)
self.assertIsNotNone(wire)
self.assertEqual(3, len(wire.Edges))
self.assertTrue(wire.isClosed())
# for holes processing "forward" means CCW
self.assertFalse(PathOpUtil.isWireClockwise(wire))
y = 4 # offset works in both directions
x = 4 * math.cos(math.pi / 6)
self.assertLines(
wire.Edges,
False,
[Vector(0, 4, 0), Vector(-x, -2, 0), Vector(x, -2, 0), Vector(0, 4, 0)],
)
def test21(self):
"""Check offsetting hole wire for more than it's size makes hole vanish."""
obj = self.doc.getObjectsByLabel("offset-edge")[0]
small = getWireInside(obj)
# sanity check
y = 10
x = 10 * math.cos(math.pi / 6)
self.assertLines(
small.Edges,
False,
[
Vector(0, y, 0),
Vector(-x, -y / 2, 0),
Vector(x, -y / 2, 0),
Vector(0, y, 0),
],
)
wire = PathOpUtil.offsetWire(small, obj.Shape, 5, True)
self.assertIsNone(wire)
def test22(self):
"""Check offsetting a body wire succeeds."""
obj = self.doc.getObjectsByLabel("offset-edge")[0]
big = getWireOutside(obj)
# sanity check
y = 20
x = 20 * math.cos(math.pi / 6)
self.assertLines(
big.Edges,
False,
[
Vector(0, y, 0),
Vector(-x, -y / 2, 0),
Vector(x, -y / 2, 0),
Vector(0, y, 0),
],
)
wire = PathOpUtil.offsetWire(big, obj.Shape, 5, True)
self.assertIsNotNone(wire)
self.assertEqual(6, len(wire.Edges))
lastAngle = None
refAngle = math.pi / 3
for e in wire.Edges:
if Part.Circle == type(e.Curve):
self.assertRoughly(5, e.Curve.Radius)
self.assertCoincide(Vector(0, 0, -1), e.Curve.Axis)
else:
self.assertRoughly(34.641, e.Length, 0.001)
begin = e.Vertexes[0].Point
end = e.Vertexes[1].Point
v = end - begin
angle = Path.Geom.getAngle(v)
if Path.Geom.isRoughly(0, angle) or Path.Geom.isRoughly(math.pi, math.fabs(angle)):
if lastAngle:
self.assertRoughly(-refAngle, lastAngle)
elif Path.Geom.isRoughly(+refAngle, angle):
if lastAngle:
self.assertRoughly(math.pi, math.fabs(lastAngle))
elif Path.Geom.isRoughly(-refAngle, angle):
if lastAngle:
self.assertRoughly(+refAngle, lastAngle)
else:
self.assertIsNone("%s: angle=%s" % (type(e.Curve), angle))
lastAngle = angle
self.assertTrue(PathOpUtil.isWireClockwise(wire))
def test31(self):
"""Check offsetting a cylinder."""
obj = self.doc.getObjectsByLabel("circle-cut")[0]
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getPositiveShape(obj), 3, True)
self.assertEqual(1, len(wire.Edges))
edge = wire.Edges[0]
self.assertCoincide(Vector(), edge.Curve.Center)
self.assertCoincide(Vector(0, 0, -1), edge.Curve.Axis)
self.assertRoughly(33, edge.Curve.Radius)
# the other way around everything's the same except the axis is negative
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getPositiveShape(obj), 3, False)
self.assertEqual(1, len(wire.Edges))
edge = wire.Edges[0]
self.assertCoincide(Vector(), edge.Curve.Center)
self.assertCoincide(Vector(0, 0, +1), edge.Curve.Axis)
self.assertRoughly(33, edge.Curve.Radius)
def test32(self):
"""Check offsetting a box."""
obj = self.doc.getObjectsByLabel("square-cut")[0]
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getPositiveShape(obj), 3, True)
self.assertEqual(8, len(wire.Edges))
self.assertEqual(4, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
self.assertEqual(4, len([e for e in wire.Edges if Part.Circle == type(e.Curve)]))
for e in wire.Edges:
if Part.Line == type(e.Curve):
if Path.Geom.isRoughly(e.Vertexes[0].Point.x, e.Vertexes[1].Point.x):
self.assertEqual(40, e.Length)
if Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y):
self.assertEqual(60, e.Length)
if Part.Circle == type(e.Curve):
self.assertRoughly(3, e.Curve.Radius)
self.assertCoincide(Vector(0, 0, -1), e.Curve.Axis)
self.assertTrue(PathOpUtil.isWireClockwise(wire))
# change offset orientation
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getPositiveShape(obj), 3, False)
self.assertEqual(8, len(wire.Edges))
self.assertEqual(4, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
self.assertEqual(4, len([e for e in wire.Edges if Part.Circle == type(e.Curve)]))
for e in wire.Edges:
if Part.Line == type(e.Curve):
if Path.Geom.isRoughly(e.Vertexes[0].Point.x, e.Vertexes[1].Point.x):
self.assertEqual(40, e.Length)
if Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y):
self.assertEqual(60, e.Length)
if Part.Circle == type(e.Curve):
self.assertRoughly(3, e.Curve.Radius)
self.assertCoincide(Vector(0, 0, +1), e.Curve.Axis)
self.assertFalse(PathOpUtil.isWireClockwise(wire))
def test33(self):
"""Check offsetting a triangle."""
obj = self.doc.getObjectsByLabel("triangle-cut")[0]
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getPositiveShape(obj), 3, True)
self.assertEqual(6, len(wire.Edges))
self.assertEqual(3, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
self.assertEqual(3, len([e for e in wire.Edges if Part.Circle == type(e.Curve)]))
length = 60 * math.sin(math.radians(60))
for e in wire.Edges:
if Part.Line == type(e.Curve):
self.assertRoughly(length, e.Length)
if Part.Circle == type(e.Curve):
self.assertRoughly(3, e.Curve.Radius)
self.assertCoincide(Vector(0, 0, -1), e.Curve.Axis)
# change offset orientation
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getPositiveShape(obj), 3, False)
self.assertEqual(6, len(wire.Edges))
self.assertEqual(3, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
self.assertEqual(3, len([e for e in wire.Edges if Part.Circle == type(e.Curve)]))
for e in wire.Edges:
if Part.Line == type(e.Curve):
self.assertRoughly(length, e.Length)
if Part.Circle == type(e.Curve):
self.assertRoughly(3, e.Curve.Radius)
self.assertCoincide(Vector(0, 0, +1), e.Curve.Axis)
def test34(self):
"""Check offsetting a shape."""
obj = self.doc.getObjectsByLabel("shape-cut")[0]
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getPositiveShape(obj), 3, True)
self.assertEqual(6, len(wire.Edges))
self.assertEqual(3, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
self.assertEqual(3, len([e for e in wire.Edges if Part.Circle == type(e.Curve)]))
length = 40
radius = 20 + 3
for e in wire.Edges:
if Part.Line == type(e.Curve):
self.assertRoughly(length, e.Length)
if Part.Circle == type(e.Curve):
self.assertRoughly(radius, e.Curve.Radius)
self.assertCoincide(Vector(0, 0, -1), e.Curve.Axis)
# change offset orientation
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getPositiveShape(obj), 3, False)
self.assertEqual(6, len(wire.Edges))
self.assertEqual(3, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
self.assertEqual(3, len([e for e in wire.Edges if Part.Circle == type(e.Curve)]))
for e in wire.Edges:
if Part.Line == type(e.Curve):
self.assertRoughly(length, e.Length)
if Part.Circle == type(e.Curve):
self.assertRoughly(radius, e.Curve.Radius)
self.assertCoincide(Vector(0, 0, +1), e.Curve.Axis)
def test35(self):
"""Check offsetting a cylindrical hole."""
obj = self.doc.getObjectsByLabel("circle-cut")[0]
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getNegativeShape(obj), 3, True)
self.assertEqual(1, len(wire.Edges))
edge = wire.Edges[0]
self.assertCoincide(Vector(), edge.Curve.Center)
self.assertCoincide(Vector(0, 0, +1), edge.Curve.Axis)
self.assertRoughly(27, edge.Curve.Radius)
# the other way around everything's the same except the axis is negative
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getNegativeShape(obj), 3, False)
self.assertEqual(1, len(wire.Edges))
edge = wire.Edges[0]
self.assertCoincide(Vector(), edge.Curve.Center)
self.assertCoincide(Vector(0, 0, -1), edge.Curve.Axis)
self.assertRoughly(27, edge.Curve.Radius)
def test36(self):
"""Check offsetting a square hole."""
obj = self.doc.getObjectsByLabel("square-cut")[0]
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getNegativeShape(obj), 3, True)
self.assertEqual(4, len(wire.Edges))
self.assertEqual(4, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
for e in wire.Edges:
if Path.Geom.isRoughly(e.Vertexes[0].Point.x, e.Vertexes[1].Point.x):
self.assertRoughly(34, e.Length)
if Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y):
self.assertRoughly(54, e.Length)
self.assertFalse(PathOpUtil.isWireClockwise(wire))
# change offset orientation
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getNegativeShape(obj), 3, False)
self.assertEqual(4, len(wire.Edges))
self.assertEqual(4, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
for e in wire.Edges:
if Path.Geom.isRoughly(e.Vertexes[0].Point.x, e.Vertexes[1].Point.x):
self.assertRoughly(34, e.Length)
if Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y):
self.assertRoughly(54, e.Length)
self.assertTrue(PathOpUtil.isWireClockwise(wire))
def test37(self):
"""Check offsetting a triangular holee."""
obj = self.doc.getObjectsByLabel("triangle-cut")[0]
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getNegativeShape(obj), 3, True)
self.assertEqual(3, len(wire.Edges))
self.assertEqual(3, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
length = 48 * math.sin(math.radians(60))
for e in wire.Edges:
self.assertRoughly(length, e.Length)
self.assertFalse(PathOpUtil.isWireClockwise(wire))
# change offset orientation
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getNegativeShape(obj), 3, False)
self.assertEqual(3, len(wire.Edges))
self.assertEqual(3, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
for e in wire.Edges:
self.assertRoughly(length, e.Length)
self.assertTrue(PathOpUtil.isWireClockwise(wire))
def test38(self):
"""Check offsetting a shape hole."""
obj = self.doc.getObjectsByLabel("shape-cut")[0]
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getNegativeShape(obj), 3, True)
self.assertEqual(6, len(wire.Edges))
self.assertEqual(3, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
self.assertEqual(3, len([e for e in wire.Edges if Part.Circle == type(e.Curve)]))
length = 40
radius = 20 - 3
for e in wire.Edges:
if Part.Line == type(e.Curve):
self.assertRoughly(length, e.Length)
if Part.Circle == type(e.Curve):
self.assertRoughly(radius, e.Curve.Radius)
self.assertCoincide(Vector(0, 0, +1), e.Curve.Axis)
# change offset orientation
wire = PathOpUtil.offsetWire(getWire(obj.Tool), getNegativeShape(obj), 3, False)
self.assertEqual(6, len(wire.Edges))
self.assertEqual(3, len([e for e in wire.Edges if Part.Line == type(e.Curve)]))
self.assertEqual(3, len([e for e in wire.Edges if Part.Circle == type(e.Curve)]))
for e in wire.Edges:
if Part.Line == type(e.Curve):
self.assertRoughly(length, e.Length)
if Part.Circle == type(e.Curve):
self.assertRoughly(radius, e.Curve.Radius)
self.assertCoincide(Vector(0, 0, -1), e.Curve.Axis)
def test40(self):
"""Check offsetting a single outside edge forward."""
obj = self.doc.getObjectsByLabel("offset-edge")[0]
w = getWireOutside(obj)
length = 40 * math.cos(math.pi / 6)
for e in w.Edges:
self.assertRoughly(length, e.Length)
# let's offset the horizontal edge for starters
hEdges = [
e for e in w.Edges if Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y)
]
x = length / 2
y = -10
self.assertEqual(1, len(hEdges))
edge = hEdges[0]
self.assertCoincide(Vector(-x, y, 0), edge.Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), edge.Vertexes[1].Point)
wire = PathOpUtil.offsetWire(Part.Wire([edge]), obj.Shape, 5, True)
self.assertEqual(1, len(wire.Edges))
y = y - 5
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[1].Point)
# make sure we get the same result even if the edge is oriented the other way
edge = Path.Geom.flipEdge(edge)
wire = PathOpUtil.offsetWire(Part.Wire([edge]), obj.Shape, 5, True)
self.assertEqual(1, len(wire.Edges))
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[1].Point)
def test41(self):
"""Check offsetting a single outside edge not forward."""
obj = self.doc.getObjectsByLabel("offset-edge")[0]
w = getWireOutside(obj)
length = 40 * math.cos(math.pi / 6)
for e in w.Edges:
self.assertRoughly(length, e.Length)
# let's offset the horizontal edge for starters
hEdges = [
e for e in w.Edges if Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y)
]
x = length / 2
y = -10
self.assertEqual(1, len(hEdges))
edge = hEdges[0]
self.assertCoincide(Vector(-x, y, 0), edge.Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), edge.Vertexes[1].Point)
wire = PathOpUtil.offsetWire(Part.Wire([edge]), obj.Shape, 5, False)
self.assertEqual(1, len(wire.Edges))
y = y - 5
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[1].Point)
# make sure we get the same result on a reversed edge
edge = Path.Geom.flipEdge(edge)
wire = PathOpUtil.offsetWire(Part.Wire([edge]), obj.Shape, 5, False)
self.assertEqual(1, len(wire.Edges))
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[1].Point)
def test42(self):
"""Check offsetting multiple outside edges."""
obj = self.doc.getObjectsByLabel("offset-edge")[0]
obj.Shape.tessellate(0.01)
self.doc.recompute()
w = getWireOutside(obj)
length = 40 * math.cos(math.pi / 6)
# let's offset the other two legs
lEdges = [
e
for e in w.Edges
if not Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y)
]
self.assertEqual(2, len(lEdges))
wire = PathOpUtil.offsetWire(Part.Wire(lEdges), obj.Shape, 2, True)
x = length / 2 + 2 * math.cos(math.pi / 6)
y = -10 + 2 * math.sin(math.pi / 6)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[-1].Vertexes[1].Point)
rEdges = [e for e in wire.Edges if Part.Circle == type(e.Curve)]
self.assertEqual(1, len(rEdges))
self.assertCoincide(Vector(0, 20, 0), rEdges[0].Curve.Center)
self.assertCoincide(Vector(0, 0, -1), rEdges[0].Curve.Axis)
# offset the other way
wire = PathOpUtil.offsetWire(Part.Wire(lEdges), obj.Shape, 2, False)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[-1].Vertexes[1].Point)
rEdges = [e for e in wire.Edges if Part.Circle == type(e.Curve)]
self.assertEqual(1, len(rEdges))
self.assertCoincide(Vector(0, 20, 0), rEdges[0].Curve.Center)
self.assertCoincide(Vector(0, 0, +1), rEdges[0].Curve.Axis)
def test43(self):
"""Check offsetting multiple backwards outside edges."""
# This is exactly the same as test32, except that the wire is flipped to make
# sure the input orientation doesn't matter
obj = self.doc.getObjectsByLabel("offset-edge")[0]
w = getWireOutside(obj)
length = 40 * math.cos(math.pi / 6)
# let's offset the other two legs
lEdges = [
e
for e in w.Edges
if not Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y)
]
self.assertEqual(2, len(lEdges))
w = Path.Geom.flipWire(Part.Wire(lEdges))
wire = PathOpUtil.offsetWire(w, obj.Shape, 2, True)
x = length / 2 + 2 * math.cos(math.pi / 6)
y = -10 + 2 * math.sin(math.pi / 6)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[-1].Vertexes[1].Point)
rEdges = [e for e in wire.Edges if Part.Circle == type(e.Curve)]
self.assertEqual(1, len(rEdges))
self.assertCoincide(Vector(0, 20, 0), rEdges[0].Curve.Center)
self.assertCoincide(Vector(0, 0, -1), rEdges[0].Curve.Axis)
# offset the other way
wire = PathOpUtil.offsetWire(Part.Wire(lEdges), obj.Shape, 2, False)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[-1].Vertexes[1].Point)
rEdges = [e for e in wire.Edges if Part.Circle == type(e.Curve)]
self.assertEqual(1, len(rEdges))
self.assertCoincide(Vector(0, 20, 0), rEdges[0].Curve.Center)
self.assertCoincide(Vector(0, 0, +1), rEdges[0].Curve.Axis)
def test44(self):
"""Check offsetting a single inside edge forward."""
obj = self.doc.getObjectsByLabel("offset-edge")[0]
w = getWireInside(obj)
length = 20 * math.cos(math.pi / 6)
for e in w.Edges:
self.assertRoughly(length, e.Length)
# let's offset the horizontal edge for starters
hEdges = [
e for e in w.Edges if Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y)
]
x = length / 2
y = -5
self.assertEqual(1, len(hEdges))
edge = hEdges[0]
self.assertCoincide(Vector(-x, y, 0), edge.Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), edge.Vertexes[1].Point)
wire = PathOpUtil.offsetWire(Part.Wire([edge]), obj.Shape, 2, True)
self.assertEqual(1, len(wire.Edges))
y = y + 2
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[1].Point)
# make sure we get the same result even if the edge is oriented the other way
edge = Path.Geom.flipEdge(edge)
wire = PathOpUtil.offsetWire(Part.Wire([edge]), obj.Shape, 2, True)
self.assertEqual(1, len(wire.Edges))
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[1].Point)
def test45(self):
"""Check offsetting a single inside edge not forward."""
obj = self.doc.getObjectsByLabel("offset-edge")[0]
w = getWireInside(obj)
length = 20 * math.cos(math.pi / 6)
for e in w.Edges:
self.assertRoughly(length, e.Length)
# let's offset the horizontal edge for starters
hEdges = [
e for e in w.Edges if Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y)
]
x = length / 2
y = -5
self.assertEqual(1, len(hEdges))
edge = hEdges[0]
self.assertCoincide(Vector(-x, y, 0), edge.Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), edge.Vertexes[1].Point)
wire = PathOpUtil.offsetWire(Part.Wire([edge]), obj.Shape, 2, False)
self.assertEqual(1, len(wire.Edges))
y = y + 2
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[1].Point)
# make sure we get the same result even if the edge is oriented the other way
edge = Path.Geom.flipEdge(edge)
wire = PathOpUtil.offsetWire(Part.Wire([edge]), obj.Shape, 2, False)
self.assertEqual(1, len(wire.Edges))
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[1].Point)
def test46(self):
"""Check offsetting multiple inside edges."""
obj = self.doc.getObjectsByLabel("offset-edge")[0]
w = getWireInside(obj)
length = 20 * math.cos(math.pi / 6)
# let's offset the other two legs
lEdges = [
e
for e in w.Edges
if not Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y)
]
self.assertEqual(2, len(lEdges))
wire = PathOpUtil.offsetWire(Part.Wire(lEdges), obj.Shape, 2, True)
x = length / 2 - 2 * math.cos(math.pi / 6)
y = -5 - 2 * math.sin(math.pi / 6)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[-1].Vertexes[1].Point)
rEdges = [e for e in wire.Edges if Part.Circle == type(e.Curve)]
self.assertEqual(0, len(rEdges))
# offset the other way
wire = PathOpUtil.offsetWire(Part.Wire(lEdges), obj.Shape, 2, False)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[-1].Vertexes[1].Point)
rEdges = [e for e in wire.Edges if Part.Circle == type(e.Curve)]
self.assertEqual(0, len(rEdges))
def test47(self):
"""Check offsetting multiple backwards inside edges."""
# This is exactly the same as test36 except that the wire is flipped to make
# sure it's orientation doesn't matter
obj = self.doc.getObjectsByLabel("offset-edge")[0]
w = getWireInside(obj)
length = 20 * math.cos(math.pi / 6)
# let's offset the other two legs
lEdges = [
e
for e in w.Edges
if not Path.Geom.isRoughly(e.Vertexes[0].Point.y, e.Vertexes[1].Point.y)
]
self.assertEqual(2, len(lEdges))
w = Path.Geom.flipWire(Part.Wire(lEdges))
wire = PathOpUtil.offsetWire(w, obj.Shape, 2, True)
x = length / 2 - 2 * math.cos(math.pi / 6)
y = -5 - 2 * math.sin(math.pi / 6)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[-1].Vertexes[1].Point)
rEdges = [e for e in wire.Edges if Part.Circle == type(e.Curve)]
self.assertEqual(0, len(rEdges))
# offset the other way
wire = PathOpUtil.offsetWire(Part.Wire(lEdges), obj.Shape, 2, False)
self.assertCoincide(Vector(-x, y, 0), wire.Edges[0].Vertexes[0].Point)
self.assertCoincide(Vector(+x, y, 0), wire.Edges[-1].Vertexes[1].Point)
rEdges = [e for e in wire.Edges if Part.Circle == type(e.Curve)]
self.assertEqual(0, len(rEdges))
def test50(self):
"""Orient an already oriented wire"""
p0 = Vector()
p1 = Vector(1, 2, 3)
p2 = Vector(2, 3, 4)
pts = [p0, p1, p2]
e0 = Part.Edge(Part.LineSegment(p0, p1))
e1 = Part.Edge(Part.LineSegment(p1, p2))
wire = PathOpUtil.orientWire(Part.Wire([e0, e1]))
wirePts = wireMarkers(wire)
self.assertPointsMatch(wirePts, pts)
def test51(self):
"""Orient a potentially misoriented wire"""
p0 = Vector()
p1 = Vector(1, 2, 3)
p2 = Vector(2, 3, 4)
pts = [p0, p1, p2]
e0p = Part.Edge(Part.LineSegment(p0, p1))
e0m = Part.Edge(Part.LineSegment(p1, p0))
e1p = Part.Edge(Part.LineSegment(p1, p2))
e1m = Part.Edge(Part.LineSegment(p2, p1))
wire = PathOpUtil.orientWire(Part.Wire([e0p, e1p]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0p, e1m]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0m, e1p]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0m, e1m]))
self.assertPointsMatch(wireMarkers(wire), pts)
def test52(self):
"""Orient a potentially misoriented longer wire"""
p0 = Vector()
p1 = Vector(1, 2, 3)
p2 = Vector(4, 5, 6)
p3 = Vector(7, 8, 9)
pts = [p0, p1, p2, p3]
e0p = Part.Edge(Part.LineSegment(p0, p1))
e0m = Part.Edge(Part.LineSegment(p1, p0))
e1p = Part.Edge(Part.LineSegment(p1, p2))
e1m = Part.Edge(Part.LineSegment(p2, p1))
e2p = Part.Edge(Part.LineSegment(p2, p3))
e2m = Part.Edge(Part.LineSegment(p3, p2))
wire = PathOpUtil.orientWire(Part.Wire([e0p, e1p, e2p]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0p, e1m, e2p]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0m, e1p, e2p]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0m, e1m, e2p]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0p, e1p, e2m]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0p, e1m, e2m]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0m, e1p, e2m]))
self.assertPointsMatch(wireMarkers(wire), pts)
wire = PathOpUtil.orientWire(Part.Wire([e0m, e1m, e2m]))
self.assertPointsMatch(wireMarkers(wire), pts)