Hello everybody,
thanks for your answer Janos that's how I'm calculating as well.
But in this case my issue was a little bit different.
Finally, I found the solution, I want to share with you guys and it is so
easy (I realize that it has been a long time ago since I was dealing with
deformers XD).
Due to the fact that iter.position() does not like MSpace::kWorld, we have
to make sure of course to multiply with the worldMatrix of the deformed
mesh's transform...
That explains why I got weird values when translating the mesh in ty. The
iter.position() gave me objectspace related values...
So now everything works as it should. As a recap here is the code from
above with the proper fix:
// Inside the deform method
//Get the closestPoint and param on the curve from each vertex
//Get inMatrix attribute value as matrix
MMatrix mMatrix = data.inputValue(aInMatrix, &status).asMatrix();
CHECK_MSTATUS_AND_RETURN_IT(status);
MFnNurbsCurve fnCurve(oCurve); //Assume we have the MObject of the
curve already
double param;
MPoint position;
for (;! iter.isDone(); iter.next())
{
//Helper method to retrieve/store the position and param value on
the curve
getClosestPoint(fnCurve, iter.position() * mMatrix, position, param
);
cout << "index: " << iter.index() << " point: " << position.x << " "
<< position.y << " " << position.z << " param: " << param << endl;
}
void Curve::getClosestPoint(MFnNurbsCurve& fnCurve, MPoint inPosition,
MPoint& position, double& param)
{
position = fnCurve.closestPoint(inPosition, ¶m, 0.0, MSpace::kWorld
);
}
Thanks guys for the thoughts and help, much appreciated!
Cheerio
Emre
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