def getHelixComplexPath(gearDerivation, xmlElement):
'Set gear helix path.'
helixTypeFirstCharacter = gearDerivation.helixType.lower()[:1]
if helixTypeFirstCharacter == 'b':
return [complex(), complex(1.0, 1.0)]
if helixTypeFirstCharacter == 'h':
return [complex(), complex(0.5, 0.5), complex(1.0, 0.0)]
if helixTypeFirstCharacter == 'p':
helixComplexPath = []
x = 0.0
xStep = evaluate.getLayerThickness(
gearDerivation.xmlElement) / gearDerivation.thickness
justBelowOne = 1.0 - 0.5 * xStep
while x < justBelowOne:
distanceFromCenter = 0.5 - x
parabolicTwist = 0.25 - distanceFromCenter * distanceFromCenter
helixComplexPath.append(complex(x, parabolicTwist))
x += xStep
helixComplexPath.append(complex(1.0, 0.0))
return helixComplexPath
print(
'Warning, the helix type was not one of (basic, herringbone or parabolic) in getHelixComplexPath in gear for:'
)
print(gearDerivation.helixType)
print(gearDerivation.xmlElement)
def getTransformedPaths(self):
"Get all transformed paths."
importRadius = self.xmlElement.getCascadeFloat(
1.5 * evaluate.getLayerThickness(self.xmlElement), 'importRadius')
return euclidean.getVector3Paths(
self.getLoopsFromObjectLoopsList(
importRadius, self.getComplexTransformedPathLists()))
def getTransformedPaths(self):
"Get all transformed paths."
importRadius = self.xmlElement.getCascadeFloat(
1.5 * evaluate.getLayerThickness(self.xmlElement), "importRadius"
)
return euclidean.getVector3Paths(
self.getLoopsFromObjectLoopsList(importRadius, self.getComplexTransformedPathLists())
)
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)
def getHelixComplexPath(gearDerivation, xmlElement):
'Set gear helix path.'
helixTypeFirstCharacter = gearDerivation.helixType.lower()[: 1]
if helixTypeFirstCharacter == 'b':
return [complex(), complex(1.0, 1.0)]
if helixTypeFirstCharacter == 'h':
return [complex(), complex(0.5, 0.5), complex(1.0, 0.0)]
if helixTypeFirstCharacter == 'p':
helixComplexPath = []
x = 0.0
xStep = evaluate.getLayerThickness(gearDerivation.xmlElement) / gearDerivation.thickness
justBelowOne = 1.0 - 0.5 * xStep
while x < justBelowOne:
distanceFromCenter = 0.5 - x
parabolicTwist = 0.25 - distanceFromCenter * distanceFromCenter
helixComplexPath.append(complex(x, parabolicTwist))
x += xStep
helixComplexPath.append(complex(1.0, 0.0))
return helixComplexPath
print('Warning, the helix type was not one of (basic, herringbone or parabolic) in getHelixComplexPath in gear for:')
print(gearDerivation.helixType)
print(gearDerivation.xmlElement)
