def makeFlatFace(mobile=[], fixed=[], vert=False):
import Part
import DraftVecUtils
import DraftGeomUtils
if not fixed:
pol = Part.makePolygon(mobile + [mobile[0]])
pol = DraftGeomUtils.flattenWire(pol)
return Part.Face(pol)
elif len(fixed) == 3:
tempf = Part.Face(Part.makePolygon(fixed + [fixed[0]]))
v4 = mobile[0].add(
DraftVecUtils.project(tempf.CenterOfMass.sub(mobile[0]),
tempf.normalAt(0, 0)))
pol = Part.makePolygon([fixed[0], fixed[1], v4, fixed[2], fixed[0]])
pol = DraftGeomUtils.flattenWire(pol)
return Part.Face(pol)
elif len(fixed) == 2:
tp = DraftGeomUtils.findMidpoint(
Part.LineSegment(mobile[0], mobile[1]).toShape())
tempf = Part.Face(Part.makePolygon(fixed + [tp, fixed[0]]))
v4 = mobile[0].add(
DraftVecUtils.project(tempf.CenterOfMass.sub(mobile[0]),
tempf.normalAt(0, 0)))
v5 = mobile[1].add(
DraftVecUtils.project(tempf.CenterOfMass.sub(mobile[1]),
tempf.normalAt(0, 0)))
if vert:
pol = Part.makePolygon([fixed[0], v4, v5, fixed[1], fixed[0]])
else:
pol = Part.makePolygon(fixed + [v4, v5, fixed[0]])
pol = DraftGeomUtils.flattenWire(pol)
return Part.Face(pol)
def getShapeFromMesh(mesh,fast=True,tolerance=0.001,flat=False,cut=True):
import Part, MeshPart, DraftGeomUtils
if mesh.isSolid() and (mesh.countComponents() == 1) and fast:
# use the best method
faces = []
for f in mesh.Facets:
p=f.Points+[f.Points[0]]
pts = []
for pp in p:
pts.append(FreeCAD.Vector(pp[0],pp[1],pp[2]))
try:
f = Part.Face(Part.makePolygon(pts))
except:
pass
else:
faces.append(f)
shell = Part.makeShell(faces)
solid = Part.Solid(shell)
solid = solid.removeSplitter()
return solid
faces = []
segments = mesh.getPlanarSegments(tolerance)
#print len(segments)
for i in segments:
if len(i) > 0:
wires = MeshPart.wireFromSegment(mesh, i)
if wires:
if flat:
nwires = []
for w in wires:
nwires.append(DraftGeomUtils.flattenWire(w))
wires = nwires
try:
faces.append(makeFace(wires,method=int(cut)+1))
except:
return None
try:
se = Part.makeShell(faces)
se = se.removeSplitter()
if flat:
return se
except Part.OCCError:
try:
cp = Part.makeCompound(faces)
except Part.OCCError:
return None
else:
return cp
else:
try:
solid = Part.Solid(se)
except Part.OCCError:
return se
else:
return solid
def flatten(self):
if hasattr(self, "Object"):
if len(self.Object.Shape.Wires) == 1:
fw = DraftGeomUtils.flattenWire(self.Object.Shape.Wires[0])
points = [v.Point for v in fw.Vertexes]
if len(points) == len(self.Object.Points):
if points != self.Object.Points:
App.ActiveDocument.openTransaction("Flatten wire")
Gui.doCommand(
"FreeCAD.ActiveDocument." + self.Object.Name +
".Points=" + str(points).replace(
"Vector", "FreeCAD.Vector").replace(" ", ""))
App.ActiveDocument.commitTransaction()
else:
_flat = "This Wire is already flat"
_msg(QT_TRANSLATE_NOOP("Draft", _flat))
