def getSegmentsFromLoopListsPoints(loopLists, pointBegin, pointEnd): "Get endpoint segments from the beginning and end of a line segment." normalizedSegment = pointEnd - pointBegin normalizedSegmentLength = abs(normalizedSegment) if normalizedSegmentLength == 0.0: return [] normalizedSegment /= normalizedSegmentLength segmentYMirror = complex(normalizedSegment.real, -normalizedSegment.imag) pointBeginRotated = segmentYMirror * pointBegin pointEndRotated = segmentYMirror * pointEnd rotatedLoopLists = [] for loopList in loopLists: rotatedLoopLists.append( euclidean.getRotatedComplexLists(segmentYMirror, loopList)) xIntersectionIndexList = [] xIntersectionIndexList.append( euclidean.XIntersectionIndex(-1, pointBeginRotated.real)) xIntersectionIndexList.append( euclidean.XIntersectionIndex(-1, pointEndRotated.real)) euclidean.addXIntersectionIndexesFromLoopListsY(rotatedLoopLists, xIntersectionIndexList, pointBeginRotated.imag) segments = euclidean.getSegmentsFromXIntersectionIndexes( xIntersectionIndexList, pointBeginRotated.imag) for segment in segments: for endpoint in segment: endpoint.point *= normalizedSegment return segments
def getSegmentsFromLoopListsPoints( loopLists, pointBegin, pointEnd ): "Get endpoint segments from the beginning and end of a line segment." normalizedSegment = pointEnd - pointBegin normalizedSegmentLength = abs( normalizedSegment ) if normalizedSegmentLength == 0.0: return [] normalizedSegment /= normalizedSegmentLength segmentYMirror = complex(normalizedSegment.real, -normalizedSegment.imag) pointBeginRotated = segmentYMirror * pointBegin pointEndRotated = segmentYMirror * pointEnd rotatedLoopLists = [] for loopList in loopLists: rotatedLoopLists.append(euclidean.getRotatedComplexLists(segmentYMirror, loopList)) xIntersectionIndexList = [] xIntersectionIndexList.append( euclidean.XIntersectionIndex( - 1, pointBeginRotated.real ) ) xIntersectionIndexList.append( euclidean.XIntersectionIndex( - 1, pointEndRotated.real ) ) euclidean.addXIntersectionIndexesFromLoopListsY( rotatedLoopLists, xIntersectionIndexList, pointBeginRotated.imag ) segments = euclidean.getSegmentsFromXIntersectionIndexes( xIntersectionIndexList, pointBeginRotated.imag ) for segment in segments: for endpoint in segment: endpoint.point *= normalizedSegment return segments