Hi again,
I don`t know how much sense this code still makes, however for me its for
learning purposes and for me its one step towards my goal to learn c++ api.
Especially converting between vectors, MFloatPoint and Matrix type might be
horrible code...but I didn*t find a more direct way.....at least it works
for me.
If you have some hints for me, how to do things more clever, please don`t
hesitate
import maya.OpenMaya as om
selList = om.MSelectionList()
selList.add("pCube1")
dagCube = om.MDagPath()
selList.getDagPath(0, dagCube)
mesh = dagCube.child(0)
trFn = om.MFnTransform(dagCube)
matrCube = trFn.transformationMatrix()
######
mesh.apiTypeStr() # should be kMesh
######
intersector = om.MMeshIntersector()
intersector.create(mesh, matrCube) # no error in API 1.0...Yeah ;)
selListLoc1 = om.MSelectionList()
selListLoc1.add("locator1")
dagLoc1 = om.MDagPath()
selListLoc1.getDagPath(0, dagLoc1)
trFnLoc1 = om.MFnTransform(dagLoc1)
vecLoc1 = trFnLoc1.translation(4)
pointLoc1 = om.MPoint(vecLoc1.x, vecLoc1.y, vecLoc1.z)
mPointOnMesh = om.MPointOnMesh()
intersector.getClosestPoint(pointLoc1,mPointOnMesh, 1000)
resultPoint = mPointOnMesh.getPoint()
# first I create vector
resultVector = om.MVector(resultPoint.x, resultPoint.y,resultPoint.z)
# then I convert to matrix
matrTrans = om.MTransformationMatrix()
matrTrans.setTranslation(resultVector,4)
localMatrix = matrTrans.asMatrix(1)
# this is the important step to get the world matrix, multiply child/local
with the parent Matrix
worldMatr = localMatrix*matrCube
worldMatrTrans = om.MTransformationMatrix(worldMatr)
selListLoc2 = om.MSelectionList()
selListLoc2.add("locator2")
dagLoc2 = om.MDagPath()
selListLoc2.getDagPath(0, dagLoc2)
trFnLoc2 = om.MFnTransform(dagLoc2)
trFnLoc2.set(worldMatrTrans)
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