def getBridgesPoly(o):
if not hasattr(o, 'bridgespolyorig'):
bridgecollectionname = o.bridges_collection_name
bridgecollection = bpy.data.collections[bridgecollectionname]
shapes = []
bpy.ops.object.select_all(action='DESELECT')
for ob in bridgecollection.objects:
if ob.type == 'CURVE':
ob.select_set(state=True)
bpy.context.view_layer.objects.active = ob
bpy.ops.object.duplicate()
bpy.ops.object.join()
ob = bpy.context.active_object
shapes.extend(utils.curveToShapely(ob, o.use_bridge_modifiers))
ob.select_set(state=True)
bpy.ops.object.delete(use_global=False)
bridgespoly = sops.unary_union(shapes)
# buffer the poly, so the bridges are not actually milled...
o.bridgespolyorig = bridgespoly.buffer(distance=o.cutter_diameter /
2.0)
o.bridgespoly_boundary = o.bridgespolyorig.boundary
o.bridgespoly_boundary_prep = prepared.prep(o.bridgespolyorig.boundary)
o.bridgespoly = prepared.prep(o.bridgespolyorig)
def addAutoBridges(o):
"""attempt to add auto bridges as set of curves"""
utils.getOperationSources(o)
# if not o.onlycurves:
# o.warnings+=('not curves')
# return;
bridgecollectionname = o.bridges_collection_name
if bridgecollectionname == '' or bpy.data.collections.get(
bridgecollectionname) == None:
bridgecollectionname = 'bridges_' + o.name
bpy.data.collections.new(bridgecollectionname)
bpy.context.collection.children.link(
bpy.data.collections[bridgecollectionname])
g = bpy.data.collections[bridgecollectionname]
o.bridges_collection_name = bridgecollectionname
for ob in o.objects:
if ob.type == 'CURVE' or ob.type == 'TEXT':
curve = utils.curveToShapely(ob)
if ob.type == 'MESH':
curve = utils.getObjectSilhouete('OBJECTS', [ob])
# curve = shapelyToMultipolygon(curve)
for c in curve:
c = c.exterior
minx, miny, maxx, maxy = c.bounds
d1 = c.project(sgeometry.Point(maxx + 1000, (maxy + miny) / 2.0))
p = c.interpolate(d1)
bo = addBridge(p.x, p.y, -math.pi / 2, o.bridges_width,
o.cutter_diameter * 1)
g.objects.link(bo)
bpy.context.collection.objects.unlink(bo)
d1 = c.project(sgeometry.Point(minx - 1000, (maxy + miny) / 2.0))
p = c.interpolate(d1)
bo = addBridge(p.x, p.y, math.pi / 2, o.bridges_width,
o.cutter_diameter * 1)
g.objects.link(bo)
bpy.context.collection.objects.unlink(bo)
d1 = c.project(sgeometry.Point((minx + maxx) / 2.0, maxy + 1000))
p = c.interpolate(d1)
bo = addBridge(p.x, p.y, 0, o.bridges_width, o.cutter_diameter * 1)
g.objects.link(bo)
bpy.context.collection.objects.unlink(bo)
d1 = c.project(sgeometry.Point((minx + maxx) / 2.0, miny - 1000))
p = c.interpolate(d1)
bo = addBridge(p.x, p.y, math.pi, o.bridges_width,
o.cutter_diameter * 1)
g.objects.link(bo)
bpy.context.collection.objects.unlink(bo)
def execute(self, context):
o1 = bpy.context.active_object
shapes = utils.curveToShapely(o1)
negative_overcuts = []
positive_overcuts = []
# count all the corners including inside and out
cornerCnt = 0
# a list of tuples for defining the inside corner
# tuple is: (pos, v1, v2, angle, allCorners list index)
insideCorners = []
diameter = self.diameter * 1.001
radius = diameter / 2
anglethreshold = math.pi - self.threshold
centerv = Vector((0,0))
extendedv = Vector((0,0))
pos = Vector((0,0))
sign = -1 if self.do_invert else 1
isTBone = self.style == 'TBONE'
# indexes in insideCorner tuple
POS, V1, V2, A, IDX = range(5)
def addOvercut(a):
nonlocal pos, centerv, radius, extendedv, sign, negative_overcuts, positive_overcuts
# move the overcut shape center position 1 radius in direction v
pos -= centerv * radius
if abs(a) < math.pi/2:
shape = utils.Circle(radius, 64)
shape = shapely.affinity.translate(shape, pos.x, pos.y)
else: # elongate overcut circle to make sure tool bit can fit into slot
p1 = pos + (extendedv * radius)
l = shapely.geometry.LineString((pos, p1))
shape = l.buffer(radius, resolution = 64)
if sign>0:
negative_overcuts.append(shape)
else:
positive_overcuts.append(shape)
def setOtherEdge(v1, v2, a):
nonlocal centerv, extendedv
if self.otherEdge:
centerv = v1
extendedv = v2
else:
centerv = -v2
extendedv = -v1
addOvercut(a)
def setCenterOffset(a):
nonlocal centerv, extendedv, sign
centerv = v1 - v2
centerv.normalize()
extendedv = centerv * math.tan(a/2) * -sign
addOvercut(a)
def getCorner(idx, offset):
nonlocal insideCorners
idx += offset
if idx >= len(insideCorners):
idx -= len(insideCorners)
return insideCorners[idx]
def getCornerDelta(curidx, nextidx):
nonlocal cornerCnt
delta = nextidx - curidx
if delta < 0:
delta += cornerCnt
return delta
for s in shapes:
s = shapely.geometry.polygon.orient(s,1)
loops = [s.boundary] if s.boundary.type == 'LineString' else s.boundary
outercurve = self.do_outer or len(loops)==1
for ci,c in enumerate(loops):
if ci>0 or outercurve:
if isTBone:
cornerCnt = 0
insideCorners = []
for i,co in enumerate(c.coords):
i1 = i-1
if i1==-1:
i1 = -2
i2 = i+1
if i2 == len(c.coords):
i2 = 0
v1 = Vector(co).xy - Vector(c.coords[i1]).xy
v2 = Vector(c.coords[i2]).xy - Vector(co).xy
if not v1.length==0 and not v2.length == 0:
a = v1.angle_signed(v2)
insideCornerFound = False
outsideCornerFound = False
if a<-anglethreshold:
if sign<0:
insideCornerFound = True
else:
outsideCornerFound = True
elif a>anglethreshold:
if sign>0:
insideCornerFound = True
else:
outsideCornerFound = True
if insideCornerFound:
# an inside corner with an overcut has been found
# which means a new side has been found
pos = Vector((co[0],co[1]))
v1.normalize()
v2.normalize()
# figure out which direction vector to use
# v is the main direction vector to move the overcut shape along
# ev is the direction vector used to elongate the overcut shape
if self.style != 'DOGBONE':
# t-bone and opposite edge styles get treated nearly the same
if isTBone:
cornerCnt += 1
#insideCorner tuplet: (pos, v1, v2, angle, corner index)
insideCorners.append((pos, v1, v2, a, cornerCnt-1))
#processing of corners for T-Bone are done after all points are processed
continue
setOtherEdge(v1, v2, a)
else: # DOGBONE style
setCenterOffset(a)
elif isTBone and outsideCornerFound:
# add an outside corner to the list
cornerCnt += 1
# check if t-bone processing required
# if no inside corners then nothing to do
if isTBone and len(insideCorners) > 0:
#print(cornerCnt, len(insideCorners))
# process all of the inside corners
for i, corner in enumerate(insideCorners):
pos, v1, v2, a, idx = corner
# figure out which side of the corner to do overcut
# if prev corner is outside corner
# calc index distance between current corner and prev
prevCorner = getCorner(i, -1)
#print('first:', i, idx, prevCorner[IDX])
if getCornerDelta(prevCorner[IDX], idx) == 1:
# make sure there is an outside corner
#print(getCornerDelta(getCorner(i, -2)[IDX], idx))
if getCornerDelta(getCorner(i, -2)[IDX], idx) > 2:
setOtherEdge(v1, v2, a)
#print('first won')
continue
nextCorner = getCorner(i, 1)
#print('second:', i, idx, nextCorner[IDX])
if getCornerDelta(idx, nextCorner[IDX]) == 1:
# make sure there is an outside corner
#print(getCornerDelta(idx, getCorner(i, 2)[IDX]))
if getCornerDelta(idx, getCorner(i, 2)[IDX]) > 2:
#print('second won')
setOtherEdge(-v2, -v1, a)
continue
#print('third')
if getCornerDelta(prevCorner[IDX], idx) == 3:
# check if they share the same edge
a1 = v1.angle_signed(prevCorner[V2])*180.0/math.pi
#print('third won', a1)
if a1 < -135 or a1 > 135:
setOtherEdge(-v2, -v1, a)
continue
#print('fourth')
if getCornerDelta(idx, nextCorner[IDX]) == 3:
# check if they share the same edge
a1 = v2.angle_signed(nextCorner[V1])*180.0/math.pi
#print('fourth won', a1)
if a1 < -135 or a1 > 135:
setOtherEdge(v1, v2, a)
continue
#print('***No Win***')
# the default if no other rules pass
setCenterOffset(a)
negative_overcuts = shapely.ops.unary_union(negative_overcuts)
positive_overcuts = shapely.ops.unary_union(positive_overcuts)
fs = shapely.ops.unary_union(shapes)
fs = fs.union(positive_overcuts)
fs = fs.difference(negative_overcuts)
o=utils.shapelyToCurve(o1.name+'_overcuts',fs,o1.location.z)
return {'FINISHED'}
def execute(self, context):
#utils.silhoueteOffset(context,-self.diameter)
o1=bpy.context.active_object
shapes=utils.curveToShapely(o1)
negative_overcuts=[]
positive_overcuts=[]
diameter = self.diameter*1.001
for s in shapes:
s=shapely.geometry.polygon.orient(s,1)
if s.boundary.type == 'LineString':
loops = [s.boundary]#s=shapely.geometry.asMultiLineString(s)
else:
loops = s.boundary
for ci,c in enumerate(loops):
if ci>0 or self.do_outer:
#c=s.boundary
for i,co in enumerate(c.coords):
i1=i-1
if i1==-1:
i1=-2
i2=i+1
if i2 == len(c.coords):
i2=0
v1 = Vector(co) - Vector(c.coords[i1])
v1 = v1.xy#Vector((v1.x,v1.y,0))
v2 = Vector(c.coords[i2]) - Vector(co)
v2 = v2.xy#v2 = Vector((v2.x,v2.y,0))
if not v1.length==0 and not v2.length == 0:
a=v1.angle_signed(v2)
sign=1
#if ci==0:
# sign=-1
#else:
# sign=1
if self.invert:# and ci>0:
sign*=-1
if (sign<0 and a<-self.threshold) or (sign>0 and a>self.threshold):
p=Vector((co[0],co[1]))
v1.normalize()
v2.normalize()
v=v1-v2
v.normalize()
p=p-v*diameter/2
if abs(a)<math.pi/2:
shape=utils.Circle(diameter/2,64)
shape= shapely.affinity.translate(shape,p.x,p.y)
else:
l=math.tan(a/2)*diameter/2
p1=p-sign*v*l
l=shapely.geometry.LineString((p,p1))
shape=l.buffer(diameter/2, resolution = 64)
if sign>0:
negative_overcuts.append(shape)
else:
positive_overcuts.append(shape)
print(a)
#for c in s.boundary:
negative_overcuts = shapely.ops.unary_union(negative_overcuts)
positive_overcuts = shapely.ops.unary_union(positive_overcuts)
#shapes.extend(overcuts)
fs=shapely.ops.unary_union(shapes)
fs = fs.union(positive_overcuts)
fs = fs.difference(negative_overcuts)
o=utils.shapelyToCurve(o1.name+'_overcuts',fs,o1.location.z)
#o=utils.shapelyToCurve('overcuts',overcuts,0)
return {'FINISHED'}
def execute(self, context):
#utils.silhoueteOffset(context,-self.diameter)
o1 = bpy.context.active_object
shapes = utils.curveToShapely(o1)
negative_overcuts = []
positive_overcuts = []
diameter = self.diameter * 1.001
for s in shapes:
s = shapely.geometry.polygon.orient(s, 1)
if s.boundary.type == 'LineString':
loops = [s.boundary] #s=shapely.geometry.asMultiLineString(s)
else:
loops = s.boundary
for ci, c in enumerate(loops):
if ci > 0 or self.do_outer:
#c=s.boundary
for i, co in enumerate(c.coords):
i1 = i - 1
if i1 == -1:
i1 = -2
i2 = i + 1
if i2 == len(c.coords):
i2 = 0
v1 = Vector(co) - Vector(c.coords[i1])
v1 = v1.xy #Vector((v1.x,v1.y,0))
v2 = Vector(c.coords[i2]) - Vector(co)
v2 = v2.xy #v2 = Vector((v2.x,v2.y,0))
if not v1.length == 0 and not v2.length == 0:
a = v1.angle_signed(v2)
sign = 1
#if ci==0:
# sign=-1
#else:
# sign=1
if self.invert: # and ci>0:
sign *= -1
if (sign < 0 and a < -self.threshold) or (
sign > 0 and a > self.threshold):
p = Vector((co[0], co[1]))
v1.normalize()
v2.normalize()
v = v1 - v2
v.normalize()
p = p - v * diameter / 2
if abs(a) < math.pi / 2:
shape = utils.Circle(diameter / 2, 64)
shape = shapely.affinity.translate(
shape, p.x, p.y)
else:
l = math.tan(a / 2) * diameter / 2
p1 = p - sign * v * l
l = shapely.geometry.LineString((p, p1))
shape = l.buffer(diameter / 2,
resolution=64)
if sign > 0:
negative_overcuts.append(shape)
else:
positive_overcuts.append(shape)
print(a)
#for c in s.boundary:
negative_overcuts = shapely.ops.unary_union(negative_overcuts)
positive_overcuts = shapely.ops.unary_union(positive_overcuts)
#shapes.extend(overcuts)
fs = shapely.ops.unary_union(shapes)
fs = fs.union(positive_overcuts)
fs = fs.difference(negative_overcuts)
o = utils.shapelyToCurve(o1.name + '_overcuts', fs, o1.location.z)
#o=utils.shapelyToCurve('overcuts',overcuts,0)
return {'FINISHED'}
def execute(self, context):
o1 = bpy.context.active_object
shapes = utils.curveToShapely(o1)
negative_overcuts = []
positive_overcuts = []
# count all the corners including inside and out
cornerCnt = 0
# a list of tuples for defining the inside corner
# tuple is: (pos, v1, v2, angle, allCorners list index)
insideCorners = []
diameter = self.diameter * 1.001
radius = diameter / 2
anglethreshold = math.pi - self.threshold
centerv = mathutils.Vector((0, 0))
extendedv = mathutils.Vector((0, 0))
pos = mathutils.Vector((0, 0))
sign = -1 if self.do_invert else 1
isTBone = self.style == 'TBONE'
# indexes in insideCorner tuple
POS, V1, V2, A, IDX = range(5)
def addOvercut(a):
nonlocal pos, centerv, radius, extendedv, sign, negative_overcuts, positive_overcuts
# move the overcut shape center position 1 radius in direction v
pos -= centerv * radius
if abs(a) < math.pi / 2:
shape = utils.Circle(radius, 64)
shape = shapely.affinity.translate(shape, pos.x, pos.y)
else: # elongate overcut circle to make sure tool bit can fit into slot
p1 = pos + (extendedv * radius)
l = shapely.geometry.LineString((pos, p1))
shape = l.buffer(radius, resolution=64)
if sign > 0:
negative_overcuts.append(shape)
else:
positive_overcuts.append(shape)
def setOtherEdge(v1, v2, a):
nonlocal centerv, extendedv
if self.otherEdge:
centerv = v1
extendedv = v2
else:
centerv = -v2
extendedv = -v1
addOvercut(a)
def setCenterOffset(a):
nonlocal centerv, extendedv, sign
centerv = v1 - v2
centerv.normalize()
extendedv = centerv * math.tan(a / 2) * -sign
addOvercut(a)
def getCorner(idx, offset):
nonlocal insideCorners
idx += offset
if idx >= len(insideCorners):
idx -= len(insideCorners)
return insideCorners[idx]
def getCornerDelta(curidx, nextidx):
nonlocal cornerCnt
delta = nextidx - curidx
if delta < 0:
delta += cornerCnt
return delta
for s in shapes:
s = shapely.geometry.polygon.orient(s, 1)
loops = [s.boundary
] if s.boundary.type == 'LineString' else s.boundary
outercurve = self.do_outer or len(loops) == 1
for ci, c in enumerate(loops):
if ci > 0 or outercurve:
if isTBone:
cornerCnt = 0
insideCorners = []
for i, co in enumerate(c.coords):
i1 = i - 1
if i1 == -1:
i1 = -2
i2 = i + 1
if i2 == len(c.coords):
i2 = 0
v1 = mathutils.Vector(co).xy - mathutils.Vector(
c.coords[i1]).xy
v2 = mathutils.Vector(
c.coords[i2]).xy - mathutils.Vector(co).xy
if not v1.length == 0 and not v2.length == 0:
a = v1.angle_signed(v2)
insideCornerFound = False
outsideCornerFound = False
if a < -anglethreshold:
if sign < 0:
insideCornerFound = True
else:
outsideCornerFound = True
elif a > anglethreshold:
if sign > 0:
insideCornerFound = True
else:
outsideCornerFound = True
if insideCornerFound:
# an inside corner with an overcut has been found
# which means a new side has been found
pos = mathutils.Vector((co[0], co[1]))
v1.normalize()
v2.normalize()
# figure out which direction vector to use
# v is the main direction vector to move the overcut shape along
# ev is the direction vector used to elongate the overcut shape
if self.style != 'DOGBONE':
# t-bone and opposite edge styles get treated nearly the same
if isTBone:
cornerCnt += 1
# insideCorner tuplet: (pos, v1, v2, angle, corner index)
insideCorners.append(
(pos, v1, v2, a, cornerCnt - 1))
# processing of corners for T-Bone are done after all points are processed
continue
setOtherEdge(v1, v2, a)
else: # DOGBONE style
setCenterOffset(a)
elif isTBone and outsideCornerFound:
# add an outside corner to the list
cornerCnt += 1
# check if t-bone processing required
# if no inside corners then nothing to do
if isTBone and len(insideCorners) > 0:
# print(cornerCnt, len(insideCorners))
# process all of the inside corners
for i, corner in enumerate(insideCorners):
pos, v1, v2, a, idx = corner
# figure out which side of the corner to do overcut
# if prev corner is outside corner
# calc index distance between current corner and prev
prevCorner = getCorner(i, -1)
# print('first:', i, idx, prevCorner[IDX])
if getCornerDelta(prevCorner[IDX], idx) == 1:
# make sure there is an outside corner
# print(getCornerDelta(getCorner(i, -2)[IDX], idx))
if getCornerDelta(getCorner(i, -2)[IDX],
idx) > 2:
setOtherEdge(v1, v2, a)
# print('first won')
continue
nextCorner = getCorner(i, 1)
# print('second:', i, idx, nextCorner[IDX])
if getCornerDelta(idx, nextCorner[IDX]) == 1:
# make sure there is an outside corner
# print(getCornerDelta(idx, getCorner(i, 2)[IDX]))
if getCornerDelta(idx,
getCorner(i, 2)[IDX]) > 2:
# print('second won')
setOtherEdge(-v2, -v1, a)
continue
# print('third')
if getCornerDelta(prevCorner[IDX], idx) == 3:
# check if they share the same edge
a1 = v1.angle_signed(
prevCorner[V2]) * 180.0 / math.pi
# print('third won', a1)
if a1 < -135 or a1 > 135:
setOtherEdge(-v2, -v1, a)
continue
# print('fourth')
if getCornerDelta(idx, nextCorner[IDX]) == 3:
# check if they share the same edge
a1 = v2.angle_signed(
nextCorner[V1]) * 180.0 / math.pi
# print('fourth won', a1)
if a1 < -135 or a1 > 135:
setOtherEdge(v1, v2, a)
continue
# print('***No Win***')
# the default if no other rules pass
setCenterOffset(a)
negative_overcuts = shapely.ops.unary_union(negative_overcuts)
positive_overcuts = shapely.ops.unary_union(positive_overcuts)
fs = shapely.ops.unary_union(shapes)
fs = fs.union(positive_overcuts)
fs = fs.difference(negative_overcuts)
o = utils.shapelyToCurve(o1.name + '_overcuts', fs, o1.location.z)
return {'FINISHED'}
