My advice - get a python debugger that allows you to attach to a process, and see what it's actually doing. I personally use eclipse / pydev's debugger for this (about the only thing I still use eclipse for these days), and it's extremely helpful. PyCharm apparently has this feature now as well, though I've found it's debugger buggier / less reliable than PyDev's in the past, so I haven't tried it out yet. I'm sure there are many other options as well.
On Thu, Apr 7, 2016 at 8:21 AM Pedro Domingo <[email protected]> wrote: > Hi, > > I have been working a few days in my first plugin node. Is just a pose > reader with a editable cone angle value and 3 world matrix input. > It works perfectly, but sometimes, when some automated process affects the > whole rig (like adding a constraint to the global rig and adding rotation > to it) maya freezes. > I assume it's an unexpected loop on the plugin node, but I have not enough > experience creating maya nodes to catch this error. > This is the code: > > import maya.OpenMayaMPx as OpenMayaMPx > import maya.OpenMaya as om > import math > > class PoseReaderNode(OpenMayaMPx.MPxNode): > kPluginNodeId = om.MTypeId(0x00000120) > > coneTarget = om.MObject() > coneAperture = om.MObject() > coneBase = om.MObject() > distance = om.MObject() > coneRadius = om.MObject() > coneTargetMatrix = om.MObject() > > def __init__(self): > OpenMayaMPx.MPxNode.__init__(self) > > def compute(self, plug, data): #ok - the actual computation > > targetInputMatrixDataHandle = om.MDataHandle(data.inputValue( > PoseReaderNode.coneTarget )) > targetValue = targetInputMatrixDataHandle.asMatrix() > apertureInputMatrixDataHandle = om.MDataHandle(data.inputValue( > PoseReaderNode.coneAperture )) > apertureValue = apertureInputMatrixDataHandle.asMatrix() > baseInputMatrixDataHandle = om.MDataHandle(data.inputValue( > PoseReaderNode.coneBase )) > baseValue = baseInputMatrixDataHandle.asMatrix() > > coneRadius = data.inputValue(PoseReaderNode.coneRadius).asFloat() > > disOutput = data.outputValue(PoseReaderNode.distance) > > # FORM A > targetMatrix = om.MTransformationMatrix(targetValue) > apertureMatrix = om.MTransformationMatrix(apertureValue) > baseMatrix = om.MTransformationMatrix(baseValue) > > target = targetMatrix.translation(om.MSpace.kWorld) > aperture = apertureMatrix.translation(om.MSpace.kWorld) > base = baseMatrix.translation(om.MSpace.kWorld) > > targetVec = target - base > currentPoseVec = aperture - base > > angle = math.degrees(targetVec.angle(currentPoseVec)) > halfCone = float(coneRadius)*0.5 > ratioAngle = float(angle)/float(halfCone) > > if ratioAngle > 1: > d = 0 > else: > d = 1-ratioAngle > > disOutput.setFloat(float(d)) > data.setClean(plug) > > def creator(): > return OpenMayaMPx.asMPxPtr(PoseReaderNode()) > > def initialize(): > nAttr = om.MFnNumericAttribute() > PoseReaderNode.coneRadius = nAttr.create("coneRadius","radius", > om.MFnNumericData.kFloat,90.0) > nAttr.setWritable(True) > nAttr.setStorable(True) > PoseReaderNode.addAttribute(PoseReaderNode.coneRadius) > > nAttr = om.MFnNumericAttribute() > PoseReaderNode.distance = nAttr.create("distance","dist", > om.MFnNumericData.kFloat,0.0) > nAttr.setWritable(False) > nAttr.setStorable(True) > PoseReaderNode.addAttribute(PoseReaderNode.distance) > > nMatrixAttr = om.MFnMatrixAttribute() > PoseReaderNode.coneBase = nMatrixAttr.create("coneBase","base", > om.MFnMatrixAttribute.kDouble) > nMatrixAttr.setWritable(True) > nMatrixAttr.setHidden(True) > PoseReaderNode.addAttribute(PoseReaderNode.coneBase) > > nMatrixAttr = om.MFnMatrixAttribute() > PoseReaderNode.coneTarget = nMatrixAttr.create("coneTarget","target", > om.MFnMatrixAttribute.kDouble) > nMatrixAttr.setWritable(True) > nMatrixAttr.setHidden(True) > PoseReaderNode.addAttribute(PoseReaderNode.coneTarget) > > nMatrixAttr = om.MFnMatrixAttribute() > PoseReaderNode.coneAperture = > nMatrixAttr.create("coneAperture","aperture", om.MFnMatrixAttribute.kDouble) > nMatrixAttr.setWritable(True) > nMatrixAttr.setHidden(True) > PoseReaderNode.addAttribute(PoseReaderNode.coneAperture) > > PoseReaderNode.attributeAffects(PoseReaderNode.coneTarget, > PoseReaderNode.distance) > PoseReaderNode.attributeAffects(PoseReaderNode.coneRadius, > PoseReaderNode.distance) > PoseReaderNode.attributeAffects(PoseReaderNode.coneAperture, > PoseReaderNode.distance) > > def initializePlugin(obj): > plugin = OpenMayaMPx.MFnPlugin(obj, 'AnimaPoseReader', '0.1', 'macka') > try: > plugin.registerNode('AnimaPoseReader', > PoseReaderNode.kPluginNodeId, creator, initialize) > except: > raise RuntimeError, 'initialization fail' > > def uninitializePlugin(obj): > plugin = OpenMayaMPx.MFnPlugin(obj) > try: > plugin.deregisterNode(PoseReaderNode.kPluginNodeId) > except: > raise RuntimeError, 'not unloading!' > > I thought about the attributeAffects, but commenting those lines works the > same (crappy) > > Any idea about that would be really welcome guys, I really don't know > where to look at my code. > > -- > You received this message because you are subscribed to the Google Groups > "Python Programming for Autodesk Maya" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/python_inside_maya/33839d93-e110-4479-8f10-fed20e4b3e28%40googlegroups.com > <https://groups.google.com/d/msgid/python_inside_maya/33839d93-e110-4479-8f10-fed20e4b3e28%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Python Programming for Autodesk Maya" group. 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