Re: [Maya-Python] MPxLocatorNode and compute troubleshooting (with example code)

2012-06-09 Thread WhileRomeBurns
In the real plugin, I do declare Author Name, Plug Version, etc. The point of my example was to remove all that code (which Maya allows- it gets initialized to default values) to make it clear to myself, and others, what the problem is. Hence I cut out the normal try/except error stuff as well-

Re: [Maya-Python] MPxLocatorNode and compute troubleshooting (with example code)

2012-06-09 Thread Judah Baron
You may benefit from at least testing out the setDependentsDirty call. Typed attributes are a bit more complex than standard base type attributes and Maya may handle them differently - I have no direct experience using them in compute. Unlike compute, setDependentsDirty is called every time an

Re: [Maya-Python] MPxLocatorNode and compute troubleshooting (with example code)

2012-06-09 Thread cedric bazillou
If you have nothing connected the compute method is triggered by either a UI ( think attribute editor or any other connectControl/attributeControl element), when it is selected or visible: I rarely use setDependsDirty: my node use basic relationship and attributeAffects is enough for me. I

Re: [Maya-Python] MPxLocatorNode and compute troubleshooting (with example code)

2012-06-08 Thread cedric bazillou
first In your plugin declaration with the kDoubleArray output I would rather correct those lines( things can be done in a lot of different ways, this is how i do it ): def initializePlugin(mobject): fnPlugin = omMPx.MFnPlugin(mobject) fnPlugin.registerNode(nodeType, nodeId,

[Maya-Python] MPxLocatorNode and compute troubleshooting (with example code)

2012-06-07 Thread WhileRomeBurns
So basically I've got a python node called *simpleLocator* with an attribute called *pointCount *(type *kInt*) which is used to generate some random points. These points can be passed out as an array with the attribute *outPoints *(type *kDoubleArray *for this example). I've setup *

Re: [Maya-Python] MPxLocatorNode and compute troubleshooting (with example code)

2012-06-07 Thread Judah Baron
You don't need connect another node to pull the data from the plug and trigger compute. It sounds like you are on the right track with the query in draw. You can either use a real attribute, or create a dummy that is used solely for the purpose of triggering compute. You then need to make sure

Re: [Maya-Python] MPxLocatorNode and compute troubleshooting (with example code)

2012-06-07 Thread cedric bazillou
You are right Judah, the other node is not mandatory: it was just a personal preference: separating data processing( noise point ) from drawing ( the locator ).If you duplicate your locator you dont need to compute several time your point list( when you need the same point list of course ). In