get worldMatrix by c++ api

[egoldid1]

hi, How do I know the value of one locator node's "worldMatrix" attribute? (c++)

I used the following code, but it gives abnormal values or numbers. Are the following codes wrong?

MPlug worldMatrixplug = depNode.findPlug("worldMatrix", true, &status);
MPlug worldMatrixplug_ele = worldMatrixplug.elementByLogicalIndex(0);

MMatrix locMatrixA( worldMatrixplug_ele .asMDataHandle().asMatrix() );
MTransformationMatrix locMatrix( worldMatrixplug_ele .asMDataHandle().asMatrix() );

[cheng_xi_li · Accepted solution]

Hi,

Getting data from a matrix attribute should like below:

// worldMatrixplug_ele is worldMatrix plug
auto handle = worldMatrixplug_ele.asMDataHandle();

// Get the data and use MFnMatrixData
MObject worldMatrixData = handle.data();
MFnMatrixData fnMatrixData(worldMatrixData);

// Get the matrix
auto locMatrixA = fnMatrixData.matrix();

Yours,

Li