def addAlreadyFilledArounds( alreadyFilledArounds, loop, radius ): "Add already filled loops around loop to alreadyFilledArounds." radius = abs( radius ) alreadyFilledLoop = [] slightlyGreaterThanRadius = 1.01 * radius muchGreaterThanRadius = 2.5 * radius centers = intercircle.getCentersFromLoop( loop, slightlyGreaterThanRadius ) for center in centers: alreadyFilledInset = intercircle.getSimplifiedInsetFromClockwiseLoop( center, radius ) if intercircle.isLargeSameDirection( alreadyFilledInset, center, radius ): alreadyFilledLoop.append( alreadyFilledInset ) if len( alreadyFilledLoop ) > 0: alreadyFilledArounds.append( alreadyFilledLoop )
def getBridgeLoops( layerThickness, loop ): "Get the inset bridge loops from the loop." halfWidth = 1.5 * layerThickness slightlyGreaterThanHalfWidth = 1.1 * halfWidth extrudateLoops = [] centers = intercircle.getCentersFromLoop( loop, slightlyGreaterThanHalfWidth ) for center in centers: extrudateLoop = intercircle.getSimplifiedInsetFromClockwiseLoop( center, halfWidth ) if intercircle.isLargeSameDirection( extrudateLoop, center, halfWidth ): if euclidean.isPathInsideLoop( loop, extrudateLoop ) == euclidean.isWiddershins( loop ): extrudateLoop.reverse() extrudateLoops.append( extrudateLoop ) return extrudateLoops
def addAlreadyFilledArounds( alreadyFilledArounds, loop, radius ): "Add already filled loops around loop to alreadyFilledArounds." radius = abs( radius ) alreadyFilledLoop = [] slightlyGreaterThanRadius = 1.01 * radius muchGreaterThanRadius = 2.5 * radius circleNodes = intercircle.getCircleNodesFromLoop( loop, slightlyGreaterThanRadius ) centers = intercircle.getCentersFromCircleNodes( circleNodes ) for center in centers: alreadyFilledInset = intercircle.getSimplifiedInsetFromClockwiseLoop( center, radius ) if euclidean.isLarge( alreadyFilledInset, muchGreaterThanRadius ) or euclidean.isWiddershins( alreadyFilledInset ): alreadyFilledLoop.append( alreadyFilledInset ) if len( alreadyFilledLoop ) > 0: alreadyFilledArounds.append( alreadyFilledLoop )
def addAlreadyFilledArounds(alreadyFilledArounds, loop, radius):
"Add already filled loops around loop to alreadyFilledArounds."
radius = abs(radius)
alreadyFilledLoop = []
slightlyGreaterThanRadius = 1.01 * radius
muchGreaterThanRadius = 2.5 * radius
circleNodes = intercircle.getCircleNodesFromLoop(
loop, slightlyGreaterThanRadius)
centers = intercircle.getCentersFromCircleNodes(circleNodes)
for center in centers:
alreadyFilledInset = intercircle.getSimplifiedInsetFromClockwiseLoop(
center, radius)
if euclidean.isLarge(alreadyFilledInset, muchGreaterThanRadius
) or euclidean.isWiddershins(alreadyFilledInset):
alreadyFilledLoop.append(alreadyFilledInset)
if len(alreadyFilledLoop) > 0:
alreadyFilledArounds.append(alreadyFilledLoop)
def getBetweens( self ): "Set betweens for the layer." if self.layerZ in self.betweenTable: return self.betweenTable[ self.layerZ ] if self.layerZ not in self.layerTable: return [] halfFillInset = 0.5 * self.fillInset betweens = [] for boundaryLoop in self.layerTable[ self.layerZ ]: circleNodes = intercircle.getCircleNodesFromLoop( boundaryLoop, self.fillInset ) centers = intercircle.getCentersFromCircleNodes( circleNodes ) for center in centers: inset = intercircle.getSimplifiedInsetFromClockwiseLoop( center, halfFillInset ) if euclidean.isLargeSameDirection( inset, center, self.fillInset ): if euclidean.isPathInsideLoop( boundaryLoop, inset ) == euclidean.isWiddershins( boundaryLoop ): betweens.append( inset ) self.betweenTable[ self.layerZ ] = betweens return betweens
def getBetweens(self):
"Set betweens for the layer."
if self.layerZ in self.betweenTable:
return self.betweenTable[self.layerZ]
if self.layerZ not in self.layerTable:
return []
halfFillInset = 0.5 * self.fillInset
betweens = []
for boundaryLoop in self.layerTable[self.layerZ]:
circleNodes = intercircle.getCircleNodesFromLoop(
boundaryLoop, self.fillInset)
centers = intercircle.getCentersFromCircleNodes(circleNodes)
for center in centers:
inset = intercircle.getSimplifiedInsetFromClockwiseLoop(
center, halfFillInset)
if euclidean.isLargeSameDirection(inset, center,
self.fillInset):
if euclidean.isPathInsideLoop(
boundaryLoop,
inset) == euclidean.isWiddershins(boundaryLoop):
betweens.append(inset)
self.betweenTable[self.layerZ] = betweens
return betweens
def getBridgeDirection( belowLoops, layerLoops, layerThickness ): "Get span direction for the majority of the overhanging extrusion perimeter, if any." if len( belowLoops ) < 1: return None belowOutsetLoops = [] overhangInset = 1.875 * layerThickness slightlyGreaterThanOverhang = 1.1 * overhangInset for loop in belowLoops: centers = intercircle.getCentersFromLoopDirection( True, loop, slightlyGreaterThanOverhang ) for center in centers: outset = intercircle.getSimplifiedInsetFromClockwiseLoop( center, overhangInset ) if intercircle.isLargeSameDirection( outset, center, overhangInset ): belowOutsetLoops.append( outset ) bridgeRotation = complex() for loop in layerLoops: for pointIndex in xrange( len( loop ) ): previousIndex = ( pointIndex + len( loop ) - 1 ) % len( loop ) bridgeRotation += getOverhangDirection( belowOutsetLoops, loop[ previousIndex ], loop[ pointIndex ] ) if abs( bridgeRotation ) < 0.75 * layerThickness: return None else: bridgeRotation /= abs( bridgeRotation ) return cmath.sqrt( bridgeRotation )