def getbase(wire):
"returns a full shape from a base wire"
dvec = fcgeo.vec(wire.Edges[0]).cross(normal)
dvec.normalize()
if obj.Align == "Left":
dvec = dvec.multiply(width)
w2 = fcgeo.offsetWire(wire,dvec)
w1 = Part.Wire(fcgeo.sortEdges(wire.Edges))
sh = fcgeo.bind(w1,w2)
elif obj.Align == "Right":
dvec = dvec.multiply(width)
dvec = fcvec.neg(dvec)
w2 = fcgeo.offsetWire(wire,dvec)
w1 = Part.Wire(fcgeo.sortEdges(wire.Edges))
sh = fcgeo.bind(w1,w2)
elif obj.Align == "Center":
dvec = dvec.multiply(width/2)
w1 = fcgeo.offsetWire(wire,dvec)
dvec = fcvec.neg(dvec)
w2 = fcgeo.offsetWire(wire,dvec)
sh = fcgeo.bind(w1,w2)
# fixing self-intersections
sh.fix(0.1,0,1)
if height and (not flat):
norm = Vector(normal).multiply(height)
sh = sh.extrude(norm)
return sh
def getSVG(self):
"Returns a SVG fragment"
if not self.sorted:
self.sort()
svg = ''
for f in self.faces:
svg += '<path '
edges = fcgeo.sortEdges(f.Edges)
v = edges[0].Vertexes[0].Point
svg += 'd="M ' + str(v.x) + ' ' + str(v.y) + ' '
for e in edges:
if isinstance(e.Curve, Part.Line) or isinstance(
e.Curve, Part.BSplineCurve):
v = e.Vertexes[-1].Point
svg += 'L ' + str(v.x) + ' ' + str(v.y) + ' '
elif isinstance(e.Curve, Part.Circle):
r = e.Curve.Radius
v = e.Vertexes[-1].Point
svg += 'A ' + str(r) + ' ' + str(r) + ' 0 0 1 ' + str(
v.x) + ' '
svg += str(v.y) + ' '
svg += '" '
svg += 'stroke="#000000" '
svg += 'stroke-width="0.01 px" '
svg += 'style="stroke-width:0.01;'
svg += 'stroke-miterlimit:1;'
svg += 'stroke-dasharray:none;'
svg += 'fill:#aaaaaa"'
svg += '/>\n'
return svg
def getPath(self, face, plane):
import Part
from draftlibs import fcgeo
"returns a svg path from a face"
svg = '<path '
edges = fcgeo.sortEdges(face.Edges)
v = self.getProj(edges[0].Vertexes[0].Point, plane)
svg += 'd="M ' + str(v.x) + ' ' + str(v.y) + ' '
for e in edges:
if isinstance(e.Curve, Part.Line) or isinstance(
e.Curve, Part.BSplineCurve):
v = self.getProj(e.Vertexes[-1].Point, plane)
svg += 'L ' + str(v.x) + ' ' + str(v.y) + ' '
elif isinstance(e.Curve, Part.Circle):
r = e.Curve.Radius
v = self.getProj(e.Vertexes[-1].Point, plane)
svg += 'A ' + str(r) + ' ' + str(r) + ' 0 0 1 ' + str(
v.x) + ' '
svg += str(v.y) + ' '
svg += '" '
svg += 'stroke="#000000" '
svg += 'stroke-width="0.01 px" '
svg += 'style="stroke-width:0.01;'
svg += 'stroke-miterlimit:1;'
svg += 'stroke-dasharray:none;'
svg += 'fill:#aaaaaa"'
svg += '/>\n'
return svg
def flattenFace(self, face):
"Returns a face where all vertices have Z = 0"
verts = []
edges = fcgeo.sortEdges(face.Edges)
for e in edges:
v = e.Vertexes[0].Point
verts.append(FreeCAD.Vector(v.x, v.y, 0))
verts.append(verts[0])
try:
sh = Part.makePolygon(verts)
sh = Part.Face(sh)
except:
if DEBUG: print "Error: Unable to flatten face"
return None
else:
return sh
def getPathData(self,w):
"Returns a SVG path data string from a 2D wire"
edges = fcgeo.sortEdges(w.Edges)
v = edges[0].Vertexes[0].Point
svg = 'M '+ str(v.x) +' '+ str(v.y) + ' '
for e in edges:
if isinstance(e.Curve,Part.Line) or isinstance(e.Curve,Part.BSplineCurve):
v = e.Vertexes[-1].Point
svg += 'L '+ str(v.x) +' '+ str(v.y) + ' '
elif isinstance(e.Curve,Part.Circle):
r = e.Curve.Radius
v = e.Vertexes[-1].Point
svg += 'A '+ str(r) + ' '+ str(r) +' 0 0 1 '+ str(v.x) +' '
svg += str(v.y) + ' '
svg += 'z '
return svg
def projectFace(self, face):
"projects a single face on the WP"
verts = []
edges = fcgeo.sortEdges(face.Edges)
for e in edges:
v = e.Vertexes[0].Point
v = self.wp.getLocalCoords(v)
verts.append(v)
verts.append(verts[0])
try:
sh = Part.makePolygon(verts)
sh = Part.Face(sh)
except:
if DEBUG: print "Error: Unable to project face on the WP"
return None
else:
return sh
def getIndices(shape,offset):
"returns a list with 2 lists: vertices and face indexes, offsetted with the given amount"
vlist = []
flist = []
for v in shape.Vertexes:
vlist.append(" "+str(round(v.X,4))+" "+str(round(v.Z,4))+" "+str(round(v.Y,4)))
for f in shape.Faces:
fi = ""
# OCC vertices are unsorted. We need to sort in the right order...
edges = fcgeo.sortEdges(f.Wire.Edges)
print edges
for e in edges:
print e.Vertexes[0].Point,e.Vertexes[1].Point
v = e.Vertexes[0]
fi+=" "+str(findVert(v,shape.Vertexes)+offset)
flist.append(fi)
return vlist,flist
def flattenFace(self,face):
"Returns a face where all vertices have Z = 0"
wires = []
for w in face[0].Wires:
verts = []
edges = fcgeo.sortEdges(w.Edges)
for e in edges:
v = e.Vertexes[0].Point
verts.append(FreeCAD.Vector(v.x,v.y,0))
verts.append(verts[0])
wires.append(Part.makePolygon(verts))
try:
sh = Part.Face(wires)
except:
if DEBUG: print "Error: Unable to flatten face"
return None
else:
return [sh]+face[1:]
def projectFace(self,face):
"projects a single face on the WP"
wires = []
norm = face[0].normalAt(0,0)
for w in face[0].Wires:
verts = []
edges = fcgeo.sortEdges(w.Edges)
for e in edges:
v = e.Vertexes[0].Point
v = self.wp.getLocalCoords(v)
verts.append(v)
verts.append(verts[0])
wires.append(Part.makePolygon(verts))
try:
sh = ArchCommands.makeFace(wires)
except:
if DEBUG: print "Error: Unable to project face on the WP"
return None
else:
# restoring flipped normals
vnorm = self.wp.getLocalCoords(norm)
if vnorm.getAngle(sh.normalAt(0,0)) > 1:
sh.reverse()
return [sh]+face[1:]
def make_curves(self):
item = ""
edges=[]
s=Gui.Selection.getSelectionEx()
for i in s:
for e in i.SubElementNames:
edges.append(getattr(i.Object.Shape,e))
sorted_edges = []
sorted_edges = fcgeo.sortEdges(edges)
#item += '#another test after sorted_edges \n'
def isSameVertex(V1, V2):#borrowed from yorik's fcgeo.py- thanks yorik!
''' Test if vertexes have same coordinates with precision 10E(-precision)'''
if round(V1.X-V2.X,1)==0 and round(V1.Y-V2.Y,1)==0 and round(V1.Z-V2.Z,1)==0 :
return True
else :
return False
start=sorted_edges[0]
end=sorted_edges[-1]
startingZ = start.Vertexes[0].Z
#set starting depth to same Z as starting curve element
self.form.lineEditStartDepth.setText(str(start.Vertexes[0].Z))
item += "curve = area.Curve()\n"
if isSameVertex(start.Vertexes[0],end.Vertexes[1]) :
item += '#closed path\n'
path = 'closedpath'
else:
item += '#open path\n'
path = 'openpath'
if path == 'openpath' :
item += "curve.append(area.Point(" + str(start.Vertexes[0].X) + "," + str(start.Vertexes[0].Y)+ "))\n"
for s in sorted_edges:
#edges.append(s)
if (isinstance(s.Curve,Part.Circle)):
mp = fcgeo.findMidpoint(s)
ce = s.Curve.Center
tang1 = s.Curve.tangent(s.ParameterRange[0]) ; tang2 = s.Curve.tangent(s.ParameterRange[1])
cross1 = Vector.cross(Base.Vector(tang1[0][0],tang1[0][1],tang1[0][2]),Base.Vector(tang2[0][0],tang2[0][1],tang2[0][2]))
if cross1[2] > 0:
direct = '1 ' #we seem to be working in a rh system in FreeCAD
else:
direct = '-1 '
item += "curve.append(area.Vertex("+str(direct)+ ", area.Point( "+ str(s.Vertexes[-1].Point[0])+", "+str(s.Vertexes[-1].Point[1])+ "), area.Point("+str(s.Curve.Center [0])+ ", " + str(s.Curve.Center[1])+ ")))\n"
elif (isinstance(s.Curve,Part.Line)):
item += "curve.append(area.Point( "+str(s.Vertexes[-1].Point[0])+", " +str(s.Vertexes[-1].Point[1])+ "))\n"
else:
pass
#export curve elements to heekscnc
#to reverse the curve:
#item += "curve.append(area.Point(" + str(end.Vertexes[0].X) + "," + str(end.Vertexes[0].Y) + "))"
if path == 'closedpath':
item += "curve.append(area.Point(" + str(start.Vertexes[1].X) + "," + str(start.Vertexes[1].Y)+ "))\n"
item += "curve.Reverse()\n"
self.form.textEditCurve.append(item)