def trimmedEdge(self,parameter1, parameter2): "make a trimmed edge based on a start and end parameter on the same curve" "p1 and p2 are either points or parameters" print "Computing new edge: p1=%0.3f, p2=%0.3f, fp=%0.3f, lp=%0.3f" % (parameter1,parameter2,self.firstParameter,self.lastParameter); if abs(parameter1 - parameter2) < 0.0001: print "WARNING: removing degenerate edge"; return None; e = OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve, parameter1, parameter2 ); return e;
def trimmedEdge(self, parameter1, parameter2):
"make a trimmed edge based on a start and end parameter on the same curve"
"p1 and p2 are either points or parameters"
print "Computing new edge: p1=%0.3f, p2=%0.3f, fp=%0.3f, lp=%0.3f" % (
parameter1, parameter2, self.firstParameter, self.lastParameter)
if abs(parameter1 - parameter2) < 0.0001:
print "WARNING: removing degenerate edge"
return None
e = OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve, parameter1,
parameter2)
return e
def _compute(self): (p1,p,p2) = (self.p1,self.closestParam, self.p2); #p1 < p < p2 #i think this works well for small distance. not as well if d is large. if (p - p1) < (2.0)*self.distanceFromStartPoint: #TODO: this code is nearly same as the branch below but with p1 and p2 swapped, #connect to start vertex self.connectingPoint = self.edgeStart; self.connectingParm = p1; #compute shortened edge e1 = OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve,p1+self.trackWidth,p2); self.otherEdges = [e1]; #enter the wire by connecting start to vertex directly self.connectingEdges = [ OCCUtil.edgeFromTwoPoints(self.startPoint,self.connectingPoint) ]; elif (p2 - p )< (2.0)*self.distanceFromStartPoint: #connect to end vertex self.connectingPoint = self.edgeEnd; self.connectingParm = p2; #compute shortened edge e1 = OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve,p1,p2-self.trackWidth); self.otherEdges = [e1]; #enter the wire by connecting start to vertex directly self.connectingEdges = [ OCCUtil.edgeFromTwoPoints(self.startPoint,self.connectingPoint) ]; else: #connect to middle of the edge self.connectingEdges = []; firstEdge = None; #which end is closer? if (p - p1) > (p2 - p ): #p2 is closer pTarget = p + (2.0)*self.distanceFromStartPoint; pEnd = pTarget - self.trackWidth; secondEdge = OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve,pTarget,p2); self.otherEdges = [OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve,p1,pEnd) ]; else: #p1 is closer pTarget = p - (2.0)*self.distanceFromStartPoint; pEnd = pTarget + self.trackWidth; secondEdge = OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve,p1,pTarget); self.otherEdges = [OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve,pEnd,p2) ]; self.connectingParam = pTarget; self.connectingPoint = self.curve.Value(pTarget); self.connectingEdges.append( OCCUtil.edgeFromTwoPoints(self.startPoint, self.connectingPoint)); self.connectingEdges.append(secondEdge);
def _compute(self):
(p1, p, p2) = (self.p1, self.closestParam, self.p2)
#p1 < p < p2
#i think this works well for small distance. not as well if d is large.
if (p - p1) < (2.0) * self.distanceFromStartPoint:
#TODO: this code is nearly same as the branch below but with p1 and p2 swapped,
#connect to start vertex
self.connectingPoint = self.edgeStart
self.connectingParm = p1
#compute shortened edge
e1 = OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve,
p1 + self.trackWidth, p2)
self.otherEdges = [e1]
#enter the wire by connecting start to vertex directly
self.connectingEdges = [
OCCUtil.edgeFromTwoPoints(self.startPoint,
self.connectingPoint)
]
elif (p2 - p) < (2.0) * self.distanceFromStartPoint:
#connect to end vertex
self.connectingPoint = self.edgeEnd
self.connectingParm = p2
#compute shortened edge
e1 = OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve, p1,
p2 - self.trackWidth)
self.otherEdges = [e1]
#enter the wire by connecting start to vertex directly
self.connectingEdges = [
OCCUtil.edgeFromTwoPoints(self.startPoint,
self.connectingPoint)
]
else:
#connect to middle of the edge
self.connectingEdges = []
firstEdge = None
#which end is closer?
if (p - p1) > (p2 - p): #p2 is closer
pTarget = p + (2.0) * self.distanceFromStartPoint
pEnd = pTarget - self.trackWidth
secondEdge = OCCUtil.edgeFromTwoPointsOnCurve(
self.handleCurve, pTarget, p2)
self.otherEdges = [
OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve, p1,
pEnd)
]
else: #p1 is closer
pTarget = p - (2.0) * self.distanceFromStartPoint
pEnd = pTarget + self.trackWidth
secondEdge = OCCUtil.edgeFromTwoPointsOnCurve(
self.handleCurve, p1, pTarget)
self.otherEdges = [
OCCUtil.edgeFromTwoPointsOnCurve(self.handleCurve, pEnd,
p2)
]
self.connectingParam = pTarget
self.connectingPoint = self.curve.Value(pTarget)
self.connectingEdges.append(
OCCUtil.edgeFromTwoPoints(self.startPoint,
self.connectingPoint))
self.connectingEdges.append(secondEdge)
