def getCubicPath(elementNode): "Get the cubic path." end = evaluate.getVector3FromElementNode(elementNode) previousElementNode = elementNode.getPreviousElementNode() if previousElementNode is None: print('Warning, can not get previousElementNode in getCubicPath in cubic for:') print(elementNode) return [end] begin = elementNode.getPreviousVertex(Vector3()) evaluatedControlPoints = evaluate.getTransformedPathByKey([], elementNode, 'controlPoints') if len(evaluatedControlPoints) > 1: return getCubicPathByBeginEnd(begin, evaluatedControlPoints, elementNode, end) controlPoint0 = evaluate.getVector3ByPrefix(None, elementNode, 'controlPoint0') controlPoint1 = evaluate.getVector3ByPrefix(None, elementNode, 'controlPoint1') if len(evaluatedControlPoints) == 1: controlPoint1 = evaluatedControlPoints[0] if controlPoint0 is None: oldControlPoint = evaluate.getVector3ByPrefixes(previousElementNode, ['controlPoint','controlPoint1'], None) if oldControlPoint is None: oldControlPoints = evaluate.getTransformedPathByKey([], previousElementNode, 'controlPoints') if len(oldControlPoints) > 0: oldControlPoint = oldControlPoints[-1] if oldControlPoint is None: oldControlPoint = end controlPoint0 = begin + begin - oldControlPoint return getCubicPathByBeginEnd(begin, [controlPoint0, controlPoint1], elementNode, end)
def getCubicPath(xmlElement): "Get the cubic path." end = evaluate.getVector3FromXMLElement(xmlElement) previousXMLElement = xmlElement.getPreviousXMLElement() if previousXMLElement == None: print('Warning, can not get previousXMLElement in getCubicPath in cubic for:') print(xmlElement) return [end] begin = xmlElement.getPreviousVertex(Vector3()) evaluatedControlPoints = evaluate.getTransformedPathByKey('controlPoints', xmlElement) if len(evaluatedControlPoints) > 1: return getCubicPathByBeginEnd(begin, evaluatedControlPoints, end, xmlElement) controlPoint0 = evaluate.getVector3ByPrefix('controlPoint0', None, xmlElement) controlPoint1 = evaluate.getVector3ByPrefix('controlPoint1', None, xmlElement) if len(evaluatedControlPoints) == 1: controlPoint1 = evaluatedControlPoints[0] if controlPoint0 == None: oldControlPoint = evaluate.getVector3ByPrefixes(['controlPoint','controlPoint1'], None, previousXMLElement) if oldControlPoint == None: oldControlPoints = evaluate.getTransformedPathByKey('controlPoints', previousXMLElement) if len(oldControlPoints) > 0: oldControlPoint = oldControlPoints[-1] if oldControlPoint == None: oldControlPoint = end controlPoint0 = begin + begin - oldControlPoint return getCubicPathByBeginEnd(begin, [controlPoint0, controlPoint1], end, xmlElement)
def getCubicPath(xmlElement): "Get the cubic path." end = evaluate.getVector3FromXMLElement(xmlElement) previousXMLElement = xmlElement.getPreviousXMLElement() if previousXMLElement == None: print('Warning, can not get previousXMLElement in getCubicPath in cubic for:') print(xmlElement) return [end] begin = xmlElement.getPreviousVertex(Vector3()) evaluatedControlPoints = evaluate.getTransformedPathByKey([], 'controlPoints', xmlElement) if len(evaluatedControlPoints) > 1: return getCubicPathByBeginEnd(begin, evaluatedControlPoints, end, xmlElement) controlPoint0 = evaluate.getVector3ByPrefix(None, 'controlPoint0', xmlElement) controlPoint1 = evaluate.getVector3ByPrefix(None, 'controlPoint1', xmlElement) if len(evaluatedControlPoints) == 1: controlPoint1 = evaluatedControlPoints[0] if controlPoint0 == None: oldControlPoint = evaluate.getVector3ByPrefixes(['controlPoint','controlPoint1'], None, previousXMLElement) if oldControlPoint == None: oldControlPoints = evaluate.getTransformedPathByKey([], 'controlPoints', previousXMLElement) if len(oldControlPoints) > 0: oldControlPoint = oldControlPoints[-1] if oldControlPoint == None: oldControlPoint = end controlPoint0 = begin + begin - oldControlPoint return getCubicPathByBeginEnd(begin, [controlPoint0, controlPoint1], end, xmlElement)
def setToXMLElementOnly(self, xmlElement): "Set to the xmlElement." self.axisEnd = evaluate.getVector3ByPrefix(self.axisEnd, 'axisEnd', xmlElement) self.axisStart = evaluate.getVector3ByPrefix(self.axisStart, 'axisStart', xmlElement) self.end = evaluate.getEvaluatedFloatDefault(self.end, 'end', xmlElement) self.loop = evaluate.getTransformedPathByKey('loop', xmlElement) self.sides = evaluate.getEvaluatedIntDefault(self.sides, 'sides', xmlElement) self.start = evaluate.getEvaluatedFloatDefault(self.start, 'start', xmlElement) self.target = evaluate.getTransformedPathsByKey('target', xmlElement)
def __init__(self, elementNode): 'Set defaults.' self.axisEnd = evaluate.getVector3ByPrefix(None, elementNode, 'axisEnd') self.axisStart = evaluate.getVector3ByPrefix(None, elementNode, 'axisStart') self.end = evaluate.getEvaluatedFloat(360.0, elementNode, 'end') self.loop = evaluate.getTransformedPathByKey([], elementNode, 'loop') self.sides = evaluate.getEvaluatedInt(None, elementNode, 'sides') self.start = evaluate.getEvaluatedFloat(0.0, elementNode, 'start') self.target = evaluate.getTransformedPathsByKey([], elementNode, 'target') if len(self.target) < 1: print('Warning, no target in derive in lathe for:') print(elementNode) return firstPath = self.target[0] if len(firstPath) < 3: print('Warning, firstPath length is less than three in derive in lathe for:') print(elementNode) self.target = [] return if self.axisStart == None: if self.axisEnd == None: self.axisStart = firstPath[0] self.axisEnd = firstPath[-1] else: self.axisStart = Vector3() self.axis = self.axisEnd - self.axisStart axisLength = abs(self.axis) if axisLength <= 0.0: print('Warning, axisLength is zero in derive in lathe for:') print(elementNode) self.target = [] return self.axis /= axisLength firstVector3 = firstPath[1] - self.axisStart firstVector3Length = abs(firstVector3) if firstVector3Length <= 0.0: print('Warning, firstVector3Length is zero in derive in lathe for:') print(elementNode) self.target = [] return firstVector3 /= firstVector3Length self.axisProjectiveSpace = euclidean.ProjectiveSpace().getByBasisZFirst(self.axis, firstVector3) if self.sides == None: distanceToLine = euclidean.getDistanceToLineByPaths(self.axisStart, self.axisEnd, self.target) self.sides = evaluate.getSidesMinimumThreeBasedOnPrecisionSides(elementNode, distanceToLine) endRadian = math.radians(self.end) startRadian = math.radians(self.start) self.isEndCloseToStart = euclidean.getIsRadianClose(endRadian, startRadian) if len(self.loop) < 1: self.loop = euclidean.getComplexPolygonByStartEnd(endRadian, 1.0, self.sides, startRadian) self.normal = euclidean.getNormalByPath(firstPath)
def __init__(self, elementNode): 'Set defaults.' self.axisEnd = evaluate.getVector3ByPrefix(None, elementNode, 'axisEnd') self.axisStart = evaluate.getVector3ByPrefix(None, elementNode, 'axisStart') self.end = evaluate.getEvaluatedFloat(360.0, elementNode, 'end') self.loop = evaluate.getTransformedPathByKey([], elementNode, 'loop') self.sides = evaluate.getEvaluatedInt(None, elementNode, 'sides') self.start = evaluate.getEvaluatedFloat(0.0, elementNode, 'start') self.target = evaluate.getTransformedPathsByKey([], elementNode, 'target') if len(self.target) < 1: print('Warning, no target in derive in lathe for:') print(elementNode) return firstPath = self.target[0] if len(firstPath) < 3: print('Warning, firstPath length is less than three in derive in lathe for:') print(elementNode) self.target = [] return if self.axisStart == None: if self.axisEnd == None: self.axisStart = firstPath[0] self.axisEnd = firstPath[-1] else: self.axisStart = Vector3() self.axis = self.axisEnd - self.axisStart axisLength = abs(self.axis) if axisLength <= 0.0: print('Warning, axisLength is zero in derive in lathe for:') print(elementNode) self.target = [] return self.axis /= axisLength firstVector3 = firstPath[1] - self.axisStart firstVector3Length = abs(firstVector3) if firstVector3Length <= 0.0: print('Warning, firstVector3Length is zero in derive in lathe for:') print(elementNode) self.target = [] return firstVector3 /= firstVector3Length self.axisProjectiveSpace = euclidean.ProjectiveSpace().getByBasisZFirst(self.axis, firstVector3) if self.sides == None: distanceToLine = euclidean.getDistanceToLineByPaths(self.axisStart, self.axisEnd, self.target) self.sides = evaluate.getSidesMinimumThreeBasedOnPrecisionSides(elementNode, distanceToLine) endRadian = math.radians(self.end) startRadian = math.radians(self.start) self.isEndCloseToStart = euclidean.getIsRadianClose(endRadian, startRadian) if len(self.loop) < 1: self.loop = euclidean.getComplexPolygonByStartEnd(endRadian, 1.0, self.sides, startRadian) self.normal = euclidean.getNormalByPath(firstPath)
def setToXMLElement(self, xmlElement): "Set to the xmlElement." self.clearanceOverWavelength = evaluate.getEvaluatedFloatDefault( self.clearanceOverWavelength, 'clearanceOverWavelength', xmlElement) self.collarWidthOverShaftRadius = evaluate.getEvaluatedFloatDefault( self.collarWidthOverShaftRadius, 'collarWidthOverShaftRadius', xmlElement) self.copyShallow = xmlElement.getCopyShallow() self.creationType = evaluate.getEvaluatedStringDefault(self.creationType, 'creationType', xmlElement) self.gearCollarThicknessOverThickness = evaluate.getEvaluatedFloatDefault( self.gearCollarThicknessOverThickness, 'gearCollarThicknessOverThickness', xmlElement) self.helixAngle = evaluate.getEvaluatedFloatDefault(self.helixAngle, 'helixAngle', xmlElement) self.helixType = evaluate.getEvaluatedStringDefault(self.helixType, 'helixType', xmlElement) self.keywayRadiusOverRadius = evaluate.getEvaluatedFloatDefault( self.keywayRadiusOverRadius, 'keywayRadiusOverRadius', xmlElement) self.lighteningHoleMarginOverRimWidth = evaluate.getEvaluatedFloatDefault( self.lighteningHoleMarginOverRimWidth, 'lighteningHoleMarginOverRimWidth', xmlElement) self.lighteningHoleMinimumRadius = evaluate.getEvaluatedFloatDefault( self.lighteningHoleMinimumRadius, 'lighteningHoleMinimumRadius', xmlElement) self.moveType = evaluate.getEvaluatedStringDefault(self.moveType, 'moveType', xmlElement) self.operatingAngle = evaluate.getEvaluatedFloatDefault(self.operatingAngle, 'operatingAngle', xmlElement) self.pinionCollarThicknessOverThickness = evaluate.getEvaluatedFloatDefault( self.pinionCollarThicknessOverThickness, 'pinionCollarThicknessOverThickness', xmlElement) self.pinionThickness = evaluate.getEvaluatedFloatDefault(self.pinionThickness, 'pinionThickness', xmlElement) self.pinionThickness = evaluate.getEvaluatedFloatDefault(self.pinionThickness, 'thickness', xmlElement) self.pitchRadius = evaluate.getEvaluatedFloatDefault(self.pitchRadius, 'pitchRadius', xmlElement) self.plateClearanceOverThickness = evaluate.getEvaluatedFloatDefault( self.plateClearanceOverThickness, 'plateClearanceOverThickness', xmlElement) self.plateThicknessOverThickness = evaluate.getEvaluatedFloatDefault( self.plateThicknessOverThickness, 'plateThicknessOverThickness', xmlElement) self.pressureAngle = evaluate.getEvaluatedFloatDefault(self.pressureAngle, 'pressureAngle', xmlElement) self.profileSurfaces = evaluate.getEvaluatedIntDefault(self.profileSurfaces, 'profileSurfaces', xmlElement) self.rackHoleRadiusOverWidth = evaluate.getEvaluatedFloatDefault( self.rackHoleRadiusOverWidth, 'rackHoleRadiusOverWidth', xmlElement) self.rackHoleBelowOverWidth = evaluate.getEvaluatedFloatDefault( self.rackHoleBelowOverWidth, 'rackHoleBelowOverWidth', xmlElement) self.rackHoleStep = evaluate.getEvaluatedFloatDefault( self.rackHoleStep, 'rackHoleStep', xmlElement) self.rackLengthOverRadius = evaluate.getEvaluatedFloatDefault(self.rackLengthOverRadius, 'rackLengthOverRadius', xmlElement) self.rackWidthOverThickness = evaluate.getEvaluatedFloatDefault( self.rackWidthOverThickness, 'rackWidthOverThickness', xmlElement) self.rimWidthOverRadius = evaluate.getEvaluatedFloatDefault(self.rimWidthOverRadius, 'rimWidthOverRadius', xmlElement) self.rootBevelOverClearance = evaluate.getEvaluatedFloatDefault( self.rootBevelOverClearance, 'rootBevelOverClearance', xmlElement) self.shaftDepthBottomOverRadius = evaluate.getEvaluatedFloatDefault( self.shaftDepthBottomOverRadius, 'shaftDepthBottomOverRadius', xmlElement) self.shaftDepthTopOverRadius = evaluate.getEvaluatedFloatDefault( self.shaftDepthTopOverRadius, 'shaftDepthOverRadius', xmlElement) self.shaftDepthTopOverRadius = evaluate.getEvaluatedFloatDefault( self.shaftDepthTopOverRadius, 'shaftDepthTopOverRadius', xmlElement) self.shaftRadiusOverPitchRadius = evaluate.getEvaluatedFloatDefault( self.shaftRadiusOverPitchRadius, 'shaftRadiusOverPitchRadius', xmlElement) self.shaftSides = evaluate.getEvaluatedIntDefault(self.shaftSides, 'shaftSides', xmlElement) self.teethPinion = evaluate.getEvaluatedIntDefault(self.teethPinion, 'teeth', xmlElement) self.teethPinion = evaluate.getEvaluatedIntDefault(self.teethPinion, 'teethPinion', xmlElement) self.teethGear = evaluate.getEvaluatedIntDefault(self.teethGear, 'teethGear', xmlElement) self.tipBevelOverClearance = evaluate.getEvaluatedFloatDefault(self.tipBevelOverClearance, 'tipBevelOverClearance', xmlElement) self.toothWidthMultiplier = evaluate.getEvaluatedFloatDefault(self.toothWidthMultiplier, 'toothWidthMultiplier', xmlElement) # Set absolute variables. self.wavelength = self.pitchRadius * 2.0 * math.pi / float(self.teethPinion) if self.clearance == None: self.clearance = self.wavelength * self.clearanceOverWavelength self.clearance = evaluate.getEvaluatedFloatDefault(self.clearance, 'clearance', xmlElement) if self.gearCollarThickness == None: self.gearCollarThickness = self.pinionThickness * self.gearCollarThicknessOverThickness self.gearCollarThickness = evaluate.getEvaluatedFloatDefault(self.gearCollarThickness, 'gearCollarThickness', xmlElement) if self.gearHolePaths == None: self.gearHolePaths = evaluate.getTransformedPathsByKey('gearHolePaths', xmlElement) if self.pinionCollarThickness == None: self.pinionCollarThickness = self.pinionThickness * self.pinionCollarThicknessOverThickness self.pinionCollarThickness = evaluate.getEvaluatedFloatDefault(self.pinionCollarThickness, 'pinionCollarThickness', xmlElement) if self.plateThickness == None: self.plateThickness = self.pinionThickness * self.plateThicknessOverThickness self.plateThickness = evaluate.getEvaluatedFloatDefault(self.plateThickness, 'plateThickness', xmlElement) if self.plateClearance == None: self.plateClearance = self.plateThickness * self.plateClearanceOverThickness self.plateClearance = evaluate.getEvaluatedFloatDefault(self.plateClearance, 'plateClearance', xmlElement) if self.rackLength == None: self.rackLength = self.pitchRadius * self.rackLengthOverRadius self.rackLength = evaluate.getEvaluatedFloatDefault(self.rackLength, 'rackLength', xmlElement) self.rackDemilength = 0.5 * self.rackLength if self.rackWidth == None: self.rackWidth = self.pinionThickness * self.rackWidthOverThickness self.rackWidth = evaluate.getEvaluatedFloatDefault(self.rackWidth, 'rackWidth', xmlElement) if self.rimWidth == None: self.rimWidth = self.pitchRadius * self.rimWidthOverRadius self.rimWidth = evaluate.getEvaluatedFloatDefault(self.rimWidth, 'rimWidth', xmlElement) if self.rootBevel == None: self.rootBevel = self.clearance * self.rootBevelOverClearance self.rootBevel = evaluate.getEvaluatedFloatDefault(self.rootBevel, 'rootBevel', xmlElement) if self.shaftRadius == None: self.shaftRadius = self.pitchRadius * self.shaftRadiusOverPitchRadius self.shaftRadius = evaluate.getEvaluatedFloatDefault(self.shaftRadius, 'shaftRadius', xmlElement) if self.collarWidth == None: self.collarWidth = self.shaftRadius * self.collarWidthOverShaftRadius self.collarWidth = evaluate.getEvaluatedFloatDefault(self.collarWidth, 'collarWidth', xmlElement) if self.keywayRadius == None: self.keywayRadius = self.shaftRadius * self.keywayRadiusOverRadius self.keywayRadius = lineation.getFloatByPrefixBeginEnd('keywayRadius', 'keywayDiameter', self.keywayRadius, xmlElement) if self.lighteningHoleMargin == None: self.lighteningHoleMargin = self.rimWidth * self.lighteningHoleMarginOverRimWidth self.lighteningHoleMargin = evaluate.getEvaluatedFloatDefault( self.lighteningHoleMargin, 'lighteningHoleMargin', xmlElement) if self.rackHoleBelow == None: self.rackHoleBelow = self.rackWidth * self.rackHoleBelowOverWidth self.rackHoleBelow = evaluate.getEvaluatedFloatDefault(self.rackHoleBelow, 'rackHoleBelow', xmlElement) if self.rackHoleRadius == None: self.rackHoleRadius = self.rackWidth * self.rackHoleRadiusOverWidth self.rackHoleRadius = lineation.getFloatByPrefixBeginEnd('rackHoleRadius', 'rackHoleDiameter', self.rackHoleRadius, xmlElement) if self.rackHoleStep == None: self.rackHoleStep = self.rackWidth * self.rackHoleStepOverWidth self.rackHoleStep = evaluate.getEvaluatedFloatDefault(self.rackHoleStep, 'rackHoleStep', xmlElement) if self.shaftDepthBottom == None: self.shaftDepthBottom = self.shaftRadius * self.shaftDepthBottomOverRadius self.shaftDepthBottom = evaluate.getEvaluatedFloatDefault(self.shaftDepthBottom, 'shaftDepthBottom', xmlElement) if self.shaftDepthTop == None: self.shaftDepthTop = self.shaftRadius * self.shaftDepthTopOverRadius self.shaftDepthTop = evaluate.getEvaluatedFloatDefault(self.shaftDepthTop, 'shaftDepth', xmlElement) self.shaftDepthTop = evaluate.getEvaluatedFloatDefault(self.shaftDepthTop, 'shaftDepthTop', xmlElement) if self.shaftPath == None: self.shaftPath = evaluate.getTransformedPathByKey('shaftPath', xmlElement) if len(self.shaftPath) < 3: self.shaftPath = shaft.getShaftPath(self.shaftDepthBottom, self.shaftDepthTop, self.shaftRadius, -self.shaftSides) if self.tipBevel == None: self.tipBevel = self.clearance * self.tipBevelOverClearance self.tipBevel = evaluate.getEvaluatedFloatDefault(self.tipBevel, 'tipBevel', xmlElement) # Set derived values. self.helixRadian = math.radians(self.helixAngle) if self.teethGear <= 0.0 and self.operatingAngle != 180.0: print('Warning, an operatingAngle other than 180 degrees can only work with a positive number of gear teeth.') print('Therefore the operatingAngle will be reset to 180 degrees.') self.operatingAngle = 180.0 self.tanHelix = math.tan(self.helixRadian) self.helixThickness = self.tanHelix * self.pinionThickness self.operatingRadian = math.radians(self.operatingAngle) self.pitchRadiusGear = self.pitchRadius * float(self.teethGear) / float(self.teethPinion) self.pressureRadian = math.radians(self.pressureAngle) self.cosPressure = math.cos(self.pressureRadian) self.sinPressure = math.sin(self.pressureRadian) self.tanPressure = math.tan(self.pressureRadian) self.halfWavelength = 0.5 * self.wavelength if self.helixPath == None: self.helixPath = euclidean.getComplexPath(evaluate.getTransformedPathByKey('helixPath', xmlElement)) if len(self.helixPath) < 1: self.helixPath = getHelixComplexPath(self, xmlElement) self.quarterWavelength = 0.25 * self.wavelength self.shaftRimRadius = self.shaftRadius + self.collarWidth self.toothProfileHalf = getToothProfileHalfCylinder(self, self.pitchRadius) self.toothProfileHalf = getWidthMultipliedPath(self.toothProfileHalf, self.toothWidthMultiplier) self.addendum = self.toothProfileHalf[-1].imag - self.pitchRadius self.dedendum = abs(self.toothProfileHalf[-1]) - self.pitchRadius + self.clearance self.pinionToothProfile = getToothProfileCylinderByProfile(self, self.pitchRadius, self.teethPinion, self.toothProfileHalf) self.xmlElement = xmlElement
def __init__(self, xmlElement): 'Set defaults.' self.clearanceOverWavelength = evaluate.getEvaluatedFloatDefault(0.1, 'clearanceOverWavelength', xmlElement) self.collarWidthOverShaftRadius = evaluate.getEvaluatedFloatDefault(1.0, 'collarWidthOverShaftRadius', xmlElement) self.copyShallow = xmlElement.getCopyShallow() self.creationType = evaluate.getEvaluatedStringDefault('both', 'creationType', xmlElement) self.creationTypeMenuRadioStrings = 'both first second'.split() self.gearCollarThicknessOverThickness = evaluate.getEvaluatedFloatDefault( 0.0, 'gearCollarThicknessOverThickness', xmlElement) self.helixAngle = evaluate.getEvaluatedFloatDefault(0.0, 'helixAngle', xmlElement) self.helixType = evaluate.getEvaluatedStringDefault('basic', 'helixType', xmlElement) self.helixTypeMenuRadioStrings = 'basic herringbone parabolic'.split() self.keywayRadiusOverRadius = evaluate.getEvaluatedFloatDefault(0.5, 'keywayRadiusOverRadius', xmlElement) self.lighteningHoleMarginOverRimWidth = evaluate.getEvaluatedFloatDefault( 1.0, 'lighteningHoleMarginOverRimWidth', xmlElement) self.lighteningHoleMinimumRadius = evaluate.getEvaluatedFloatDefault( 1.0, 'lighteningHoleMinimumRadius', xmlElement) self.moveType = evaluate.getEvaluatedStringDefault('separate', 'moveType', xmlElement) self.moveTypeMenuRadioStrings = 'mesh none separate vertical'.split() self.operatingAngle = evaluate.getEvaluatedFloatDefault(180.0, 'operatingAngle', xmlElement) self.pinionCollarThicknessOverThickness = evaluate.getEvaluatedFloatDefault( 0.0, 'pinionCollarThicknessOverThickness', xmlElement) self.pinionThickness = evaluate.getEvaluatedFloatDefault(10.0, 'pinionThickness', xmlElement) self.pinionThickness = evaluate.getEvaluatedFloatDefault(self.pinionThickness, 'thickness', xmlElement) self.plateClearanceOverThickness = evaluate.getEvaluatedFloatDefault(0.2, 'plateClearanceOverThickness', xmlElement) self.plateThicknessOverThickness = evaluate.getEvaluatedFloatDefault(0.5, 'plateThicknessOverThickness', xmlElement) self.pressureAngle = evaluate.getEvaluatedFloatDefault(20.0, 'pressureAngle', xmlElement) self.profileSurfaces = evaluate.getEvaluatedIntDefault(11, 'profileSurfaces', xmlElement) self.rackHoleRadiusOverWidth = evaluate.getEvaluatedFloatDefault(0.0, 'rackHoleRadiusOverWidth', xmlElement) self.rackHoleBelowOverWidth = evaluate.getEvaluatedFloatDefault(0.6, 'rackHoleBelowOverWidth', xmlElement) self.rackHoleStepOverWidth = evaluate.getEvaluatedFloatDefault(1.0, 'rackHoleStepOverWidth', xmlElement) self.rackLengthOverRadius = evaluate.getEvaluatedFloatDefault(math.pi + math.pi, 'rackLengthOverRadius', xmlElement) self.rackWidthOverThickness = evaluate.getEvaluatedFloatDefault(1.0, 'rackWidthOverThickness', xmlElement) self.rimWidthOverRadius = evaluate.getEvaluatedFloatDefault(0.2, 'rimWidthOverRadius', xmlElement) self.rootBevelOverClearance = evaluate.getEvaluatedFloatDefault(0.5, 'rootBevelOverClearance', xmlElement) self.shaftDepthBottomOverRadius = evaluate.getEvaluatedFloatDefault(0.0, 'shaftDepthBottomOverRadius', xmlElement) self.shaftDepthTopOverRadius = evaluate.getEvaluatedFloatDefault(0.0, 'shaftDepthOverRadius', xmlElement) self.shaftDepthTopOverRadius = evaluate.getEvaluatedFloatDefault( self.shaftDepthTopOverRadius, 'shaftDepthTopOverRadius', xmlElement) self.shaftRadiusOverPitchRadius = evaluate.getEvaluatedFloatDefault(0.0, 'shaftRadiusOverPitchRadius', xmlElement) self.shaftSides = evaluate.getEvaluatedIntDefault(4, 'shaftSides', xmlElement) self.teethPinion = evaluate.getEvaluatedIntDefault(7, 'teeth', xmlElement) self.teethPinion = evaluate.getEvaluatedIntDefault(self.teethPinion, 'teethPinion', xmlElement) self.teethGear = evaluate.getEvaluatedIntDefault(17, 'teethGear', xmlElement) totalTeethOverPinionTeeth = float(self.teethGear + self.teethPinion) / float(self.teethPinion) self.centerDistance = evaluate.getEvaluatedFloatDefault(20.0 * totalTeethOverPinionTeeth, 'centerDistance', xmlElement) derivedPitchRadius = self.centerDistance / totalTeethOverPinionTeeth self.pitchRadius = evaluate.getEvaluatedFloatDefault(derivedPitchRadius, 'pitchRadius', xmlElement) self.tipBevelOverClearance = evaluate.getEvaluatedFloatDefault(0.1, 'tipBevelOverClearance', xmlElement) # tooth multiplied by 0.99999 to avoid an intersection self.toothWidthMultiplier = evaluate.getEvaluatedFloatDefault(0.99999, 'toothWidthMultiplier', xmlElement) # Set absolute variables. self.wavelength = self.pitchRadius * 2.0 * math.pi / float(self.teethPinion) self.clearance = self.wavelength * self.clearanceOverWavelength self.clearance = evaluate.getEvaluatedFloatDefault(self.clearance, 'clearance', xmlElement) self.gearCollarThickness = self.pinionThickness * self.gearCollarThicknessOverThickness self.gearCollarThickness = evaluate.getEvaluatedFloatDefault(self.gearCollarThickness, 'gearCollarThickness', xmlElement) self.gearHolePaths = evaluate.getTransformedPathsByKey([], 'gearHolePaths', xmlElement) self.pinionCollarThickness = self.pinionThickness * self.pinionCollarThicknessOverThickness self.pinionCollarThickness = evaluate.getEvaluatedFloatDefault(self.pinionCollarThickness, 'pinionCollarThickness', xmlElement) self.plateThickness = self.pinionThickness * self.plateThicknessOverThickness self.plateThickness = evaluate.getEvaluatedFloatDefault(self.plateThickness, 'plateThickness', xmlElement) self.plateClearance = self.plateThickness * self.plateClearanceOverThickness self.plateClearance = evaluate.getEvaluatedFloatDefault(self.plateClearance, 'plateClearance', xmlElement) self.rackLength = self.pitchRadius * self.rackLengthOverRadius self.rackLength = evaluate.getEvaluatedFloatDefault(self.rackLength, 'rackLength', xmlElement) self.rackDemilength = 0.5 * self.rackLength self.rackWidth = self.pinionThickness * self.rackWidthOverThickness self.rackWidth = evaluate.getEvaluatedFloatDefault(self.rackWidth, 'rackWidth', xmlElement) self.rimWidth = self.pitchRadius * self.rimWidthOverRadius self.rimWidth = evaluate.getEvaluatedFloatDefault(self.rimWidth, 'rimWidth', xmlElement) self.rootBevel = self.clearance * self.rootBevelOverClearance self.rootBevel = evaluate.getEvaluatedFloatDefault(self.rootBevel, 'rootBevel', xmlElement) self.shaftRadius = self.pitchRadius * self.shaftRadiusOverPitchRadius self.shaftRadius = evaluate.getEvaluatedFloatDefault(self.shaftRadius, 'shaftRadius', xmlElement) self.collarWidth = self.shaftRadius * self.collarWidthOverShaftRadius self.collarWidth = evaluate.getEvaluatedFloatDefault(self.collarWidth, 'collarWidth', xmlElement) self.keywayRadius = self.shaftRadius * self.keywayRadiusOverRadius self.keywayRadius = lineation.getFloatByPrefixBeginEnd('keywayRadius', 'keywayDiameter', self.keywayRadius, xmlElement) self.lighteningHoleMargin = self.rimWidth * self.lighteningHoleMarginOverRimWidth self.lighteningHoleMargin = evaluate.getEvaluatedFloatDefault( self.lighteningHoleMargin, 'lighteningHoleMargin', xmlElement) self.rackHoleBelow = self.rackWidth * self.rackHoleBelowOverWidth self.rackHoleBelow = evaluate.getEvaluatedFloatDefault(self.rackHoleBelow, 'rackHoleBelow', xmlElement) self.rackHoleRadius = self.rackWidth * self.rackHoleRadiusOverWidth self.rackHoleRadius = lineation.getFloatByPrefixBeginEnd('rackHoleRadius', 'rackHoleDiameter', self.rackHoleRadius, xmlElement) self.rackHoleStep = self.rackWidth * self.rackHoleStepOverWidth self.rackHoleStep = evaluate.getEvaluatedFloatDefault(self.rackHoleStep, 'rackHoleStep', xmlElement) self.shaftDepthBottom = self.shaftRadius * self.shaftDepthBottomOverRadius self.shaftDepthBottom = evaluate.getEvaluatedFloatDefault(self.shaftDepthBottom, 'shaftDepthBottom', xmlElement) self.shaftDepthTop = self.shaftRadius * self.shaftDepthTopOverRadius self.shaftDepthTop = evaluate.getEvaluatedFloatDefault(self.shaftDepthTop, 'shaftDepth', xmlElement) self.shaftDepthTop = evaluate.getEvaluatedFloatDefault(self.shaftDepthTop, 'shaftDepthTop', xmlElement) self.shaftPath = evaluate.getTransformedPathByKey([], 'shaftPath', xmlElement) if len(self.shaftPath) < 3: self.shaftPath = shaft.getShaftPath(self.shaftDepthBottom, self.shaftDepthTop, self.shaftRadius, -self.shaftSides) self.tipBevel = self.clearance * self.tipBevelOverClearance self.tipBevel = evaluate.getEvaluatedFloatDefault(self.tipBevel, 'tipBevel', xmlElement) # Set derived values. self.helixRadian = math.radians(self.helixAngle) if self.teethGear <= 0.0 and self.operatingAngle != 180.0: print('Warning, an operatingAngle other than 180 degrees can only work with a positive number of gear teeth.') print('Therefore the operatingAngle will be reset to 180 degrees.') self.operatingAngle = 180.0 self.tanHelix = math.tan(self.helixRadian) self.helixThickness = self.tanHelix * self.pinionThickness self.operatingRadian = math.radians(self.operatingAngle) self.pitchRadiusGear = self.pitchRadius * float(self.teethGear) / float(self.teethPinion) self.pressureRadian = math.radians(self.pressureAngle) self.cosPressure = math.cos(self.pressureRadian) self.sinPressure = math.sin(self.pressureRadian) self.tanPressure = math.tan(self.pressureRadian) self.halfWavelength = 0.5 * self.wavelength self.helixPath = euclidean.getComplexPath(evaluate.getTransformedPathByKey([], 'helixPath', xmlElement)) if len(self.helixPath) < 1: self.helixPath = getHelixComplexPath(self, xmlElement) self.quarterWavelength = 0.25 * self.wavelength self.shaftRimRadius = self.shaftRadius + self.collarWidth self.toothProfileHalf = getToothProfileHalfCylinder(self, self.pitchRadius) self.toothProfileHalf = getWidthMultipliedPath(self.toothProfileHalf, self.toothWidthMultiplier) self.addendum = self.toothProfileHalf[-1].imag - self.pitchRadius self.dedendum = abs(self.toothProfileHalf[-1]) - self.pitchRadius + self.clearance self.pinionToothProfile = getToothProfileCylinderByProfile(self, self.pitchRadius, self.teethPinion, self.toothProfileHalf) self.xmlElement = xmlElement