Ok, so after asking I plugged away and figured out how to do it. Here is
what I found for anyone else who is interested in doing this.
def getAttrPlug(nodeName, attrName):
selectionList = OpenMaya.MSelectionList()
try:
selectionList.add(nodeName)
except:
return None
dependNode = selectionList.getDependNode(0)
dagNode = OpenMaya.MFnDagNode(selectionList.getDagPath(0))
attrNode = dagNode.attribute(attrName)
return OpenMaya.MPlug(dependNode,attrNode)
def createPluginData(typeId, dataList):
pluginDataCreator = OpenMaya.MFnPluginData()
bdtID = OpenMaya.MTypeId(typeId)
pluginDataCreator.create(bdtID)
values = bytearray(dataList)
pluginDataCreator.data().readBinary(values, len(dataList))
return pluginDataCreator.data()
blindNode = getAttrPlug("blind", "blindData")
blindData = createPluginData(0x00001948, [84,111,111,32,69,97,115,121])
dataHandle = blindNode.asMDataHandle()
dataHandle.setMPxData(blindData)
On Wednesday, February 22, 2017 at 2:16:03 PM UTC-8, Cameron Fulton wrote:
>
> Hi all,
>
> So I have a custom data type that I create in cpp that I use for an
> attribute on a custom node. My custom data type is pretty straight forward:
> class BlindData : public MPxData
> {
>
>
> public:
> BlindData();
> virtual ~BlindData();
>
>
> /**
> * Copy the local data from a similar data object
> *
> * @param MPxData
> * Data object to copy from.
> */
> virtual void copy(const MPxData&);
>
>
> MStatus
> readBinary(istream& in, unsigned int length);
>
>
> MStatus
> writeBinary(ostream& out);
>
>
> MTypeId typeId() const;
>
>
> MString name() const;
>
> static MString typeName;
> static MTypeId id;
> static void* creator();
>
>
> std::vector<char> m_data;
> };
>
> And then I just use that as a type for my attr on my node
> MFnTypedAttribute tAttr;
> MStatus stat;
>
> blindDataAttr = tAttr.create("blindData",
> "blind",
> BlindData::id,
> MObject::kNullObj,
> &stat);
> addAttribute(mPoseDataList);
>
>
> So now I want to set that in Python, but I'm not sure how too. Anyone run
> into this before?
>
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