def test_get_extended_wire(self):
"""Test the DraftGeomUtils.get_extended_wire function."""
operation = "DraftGeomUtils.get_extended_wire"
_msg(" Test '{}'".format(operation))
# Build wires made with straight edges and various combination of Orientation: the wires 1-4 are all equivalent
points = [FreeCAD.Vector(0.0, 0.0, 0.0),
FreeCAD.Vector(1500.0, 2000.0, 0.0),
FreeCAD.Vector(4500.0, 2000.0, 0.0),
FreeCAD.Vector(4500.0, 2000.0, 2500.0)]
edges = []
for start, end in zip(points[:-1], points[1:]):
edge = Part.makeLine(start, end)
edges.append(edge)
wire1 = Part.Wire(edges)
edges = []
for start, end in zip(points[:-1], points[1:]):
edge = Part.makeLine(end, start)
edge.Orientation = "Reversed"
edges.append(edge)
wire2 = Part.Wire(edges)
edges = []
for start, end in zip(points[:-1], points[1:]):
edge = Part.makeLine(start, end)
edge.Orientation = "Reversed"
edges.insert(0, edge)
wire3 = Part.Wire(edges)
wire3.Orientation = "Reversed"
edges = []
for start, end in zip(points[:-1], points[1:]):
edge = Part.makeLine(end, start)
edges.insert(0, edge)
wire4 = Part.Wire(edges)
wire4.Orientation = "Reversed"
# Build wires made with arcs and various combination of Orientation: the wires 5-8 are all equivalent
points = [FreeCAD.Vector(0.0, 0.0, 0.0),
FreeCAD.Vector(1000.0, 1000.0, 0.0),
FreeCAD.Vector(2000.0, 0.0, 0.0),
FreeCAD.Vector(3000.0, 0.0, 1000.0),
FreeCAD.Vector(4000.0, 0.0, 0.0)]
edges = []
for start, mid, end in zip(points[:-2], points[1:-1], points[2:]):
edge = Part.Arc(start, mid, end).toShape()
edges.append(edge)
wire5 = Part.Wire(edges)
edges = []
for start, mid, end in zip(points[:-2], points[1:-1], points[2:]):
edge = Part.Arc(end, mid, start).toShape()
edge.Orientation = "Reversed"
edges.append(edge)
wire6 = Part.Wire(edges)
edges = []
for start, mid, end in zip(points[:-2], points[1:-1], points[2:]):
edge = Part.Arc(start, mid, end).toShape()
edge.Orientation = "Reversed"
edges.insert(0, edge)
wire7 = Part.Wire(edges)
wire7.Orientation = "Reversed"
edges = []
for start, mid, end in zip(points[:-2], points[1:-1], points[2:]):
edge = Part.Arc(end, mid, start).toShape()
edges.insert(0, edge)
wire8 = Part.Wire(edges)
wire8.Orientation = "Reversed"
# Run "get_extended_wire" for all the wires with various offset_start, offset_end combinations
num_subtests = 0
offset_values = (2000.0, 0.0, -1000, -2000, -3000, -5500)
for i, wire in enumerate((wire1, wire2, wire3, wire4, wire5, wire6, wire7, wire8)):
_msg(" Running tests with wire{}".format(i + 1))
for offset_start in offset_values:
for offset_end in offset_values:
if offset_start + offset_end > -wire.Length:
subtest = "get_extended_wire(wire{0}, {1}, {2})".format(i + 1, offset_start, offset_end)
num_subtests += 1 # TODO: it should be "with self.subtest(subtest):" but then it doesn't report failures.
extended = DraftGeomUtils.get_extended_wire(wire, offset_start, offset_end)
# Test that the extended wire's length is correctly changed
self.assertAlmostEqual(extended.Length, wire.Length + offset_start + offset_end,
DraftGeomUtils.precision(), "'{0}.{1}' failed".format(operation, subtest))
if offset_start == 0.0:
# If offset_start is 0.0, check that the wire's start point is unchanged
self.assertAlmostEqual(extended.OrderedVertexes[0].Point.distanceToPoint(wire.OrderedVertexes[0].Point), 0.0,
DraftGeomUtils.precision(), "'{0}.{1}' failed".format(operation, subtest))
if offset_end == 0.0:
# If offset_end is 0.0, check that the wire's end point is unchanged
self.assertAlmostEqual(extended.OrderedVertexes[-1].Point.distanceToPoint(wire.OrderedVertexes[-1].Point), 0.0,
DraftGeomUtils.precision(), "'{0}.{1}' failed".format(operation, subtest))
_msg(" Test completed, {} subtests run".format(num_subtests))
