def getOutputCylinder(
collarThickness, derivation, gearHolePaths, pitchRadius, teeth, twist, vector3GearProfile, xmlElement):
"Get extrude output for a cylinder gear."
extrudeDerivation = extrude.ExtrudeDerivation()
extrudeDerivation.offsetPathDefault = [Vector3(), Vector3(0.0, 0.0, derivation.pinionThickness)]
extrudeDerivation.setToXMLElement(derivation.copyShallow)
negatives = []
positives = []
if twist != 0.0:
twistDegrees = math.degrees(twist)
extrudeDerivation.twistPathDefault = []
for complexPoint in derivation.helixPath:
extrudeDerivation.twistPathDefault.append(Vector3(complexPoint.real, twistDegrees * complexPoint.imag))
extrude.insertTwistPortions(extrudeDerivation, xmlElement)
if derivation.operatingAngle != 180.0:
addBevelGear(derivation, extrudeDerivation, pitchRadius, positives, teeth, vector3GearProfile)
addCollarShaft(collarThickness, derivation, negatives, positives, xmlElement)
return extrude.getGeometryOutputByNegativesPositives(extrudeDerivation, negatives, positives, xmlElement)
if pitchRadius > 0:
extrude.addNegativesPositives(extrudeDerivation, negatives, vector3GearProfile, positives)
addLighteningHoles(derivation, gearHolePaths, negatives, pitchRadius, positives)
addCollarShaft(collarThickness, derivation, negatives, positives, xmlElement)
return extrude.getGeometryOutputByNegativesPositives(extrudeDerivation, negatives, positives, xmlElement)
if derivation.plateThickness <= 0.0:
extrude.addNegativesPositives(extrudeDerivation, negatives, vector3GearProfile, positives)
return extrude.getGeometryOutputByNegativesPositives(extrudeDerivation, negatives, positives, xmlElement)
portionDirections = extrude.getSpacedPortionDirections(extrudeDerivation.interpolationDictionary)
outerGearProfile = vector3GearProfile[0]
outerLoopLists = extrude.getLoopListsByPath(extrudeDerivation, None, outerGearProfile, portionDirections)
addBottomLoop(-derivation.plateClearance, outerLoopLists[0])
geometryOutput = trianglemesh.getPillarsOutput(outerLoopLists)
positives.append(geometryOutput)
innerLoopLists = extrude.getLoopListsByPath(extrudeDerivation, None, vector3GearProfile[1], portionDirections)
addBottomLoop(-derivation.plateClearance, innerLoopLists[0])
geometryOutput = trianglemesh.getPillarsOutput(innerLoopLists)
negatives.append(geometryOutput)
connectionStart = Vector3(0.0, 0.0, -derivation.plateThickness)
plateDerivation = extrude.ExtrudeDerivation()
plateDerivation.offsetPathDefault = [connectionStart, Vector3(0.0, 0.0, -derivation.plateClearance)]
plateDerivation.setToXMLElement(derivation.copyShallow)
extrude.addNegativesPositives(plateDerivation, negatives, [outerGearProfile], positives)
vector3LighteningHoles = getLighteningHoles(derivation, gearHolePaths, pitchRadius)
extrude.addNegativesPositives(plateDerivation, negatives, vector3LighteningHoles, positives)
addShaft(derivation, negatives, positives)
connectionEnd = Vector3(0.0, 0.0, derivation.pinionThickness)
positiveOutput = trianglemesh.getUnifiedOutput(positives)
annulusPlateOutput = {'difference' : {'shapes' : [positiveOutput] + negatives}}
if collarThickness <= 0.0:
outputCylinder = extrude.getGeometryOutputByConnection(connectionEnd, connectionStart, annulusPlateOutput, xmlElement)
return getLiftedOutput(derivation, outputCylinder, xmlElement)
negatives = []
positives = []
connectionEnd = Vector3(0.0, 0.0, derivation.pinionThickness + collarThickness)
collarDerivation = extrude.ExtrudeDerivation()
collarDerivation.offsetPathDefault = [Vector3(0.0, 0.0, -derivation.plateClearance), connectionEnd]
addCollarShaftSetDerivation(collarDerivation, collarThickness, derivation, negatives, positives, xmlElement)
collarOutput = {'difference' : {'shapes' : positives + negatives}}
cylinderOutput = {'union' : {'shapes' : [annulusPlateOutput, collarOutput]}}
outputCylinder = extrude.getGeometryOutputByConnection(connectionEnd, connectionStart, cylinderOutput, xmlElement)
return getLiftedOutput(derivation, outputCylinder, xmlElement)
def addBevelGear(derivation, extrudeDerivation, pitchRadius, positives, teeth, vector3GearProfile): "Get extrude output for a cylinder gear." totalPitchRadius = derivation.pitchRadiusGear + derivation.pitchRadius totalTeeth = derivation.teethPinion + derivation.teethGear portionDirections = extrude.getSpacedPortionDirections(extrudeDerivation.interpolationDictionary) loopLists = extrude.getLoopListsByPath(extrudeDerivation, None, vector3GearProfile[0], portionDirections) firstLoopList = loopLists[0] gearOverPinion = float(totalTeeth - teeth) / float(teeth) thirdLayerThickness = 0.33333333333 * evaluate.getLayerThickness(derivation.xmlElement) pitchRadian = math.atan(math.sin(derivation.operatingRadian) / (gearOverPinion + math.cos(derivation.operatingRadian))) coneDistance = pitchRadius / math.sin(pitchRadian) apex = Vector3(0.0, 0.0, math.sqrt(coneDistance * coneDistance - pitchRadius * pitchRadius)) cosPitch = apex.z / coneDistance sinPitch = math.sin(pitchRadian) for loop in firstLoopList: for point in loop: alongWay = point.z / coneDistance oneMinusAlongWay = 1.0 - alongWay pointComplex = point.dropAxis() pointComplexLength = abs(pointComplex) deltaRadius = pointComplexLength - pitchRadius cosDeltaRadius = cosPitch * deltaRadius sinDeltaRadius = sinPitch * deltaRadius pointComplex *= (cosDeltaRadius + pitchRadius) / pointComplexLength point.x = pointComplex.real point.y = pointComplex.imag point.z += sinDeltaRadius point.x *= oneMinusAlongWay point.y *= oneMinusAlongWay addBottomLoop(-thirdLayerThickness, firstLoopList) topLoop = firstLoopList[-1] topAddition = [] topZ = euclidean.getTopPath(topLoop) + thirdLayerThickness oldIndex = topLoop[-1].index for point in topLoop: oldIndex += 1 topAddition.append(Vector3Index(oldIndex, 0.8 * point.x, 0.8 * point.y, topZ)) firstLoopList.append(topAddition) translation = Vector3(0.0, 0.0, -euclidean.getBottomPaths(firstLoopList)) euclidean.translateVector3Paths(firstLoopList, translation) geometryOutput = trianglemesh.getPillarsOutput(loopLists) positives.append(geometryOutput)