The following script gets you the world position from a random uv-coordinate of 
the selected object.
I affraid I don't know what you mean with symmetry line.


import maya.OpenMaya as om
import maya.cmds as cmds
import random

def GetDagPath(nodeName):
    sel = om.MSelectionList()
    om.MGlobal.getSelectionListByName(nodeName, sel)
    
    dp = om.MDagPath()

    sel.getDagPath(0,dp)
    return dp


def UvCoordToWorld(U, V, mesh):

    mfnMesh = om.MFnMesh(GetDagPath(mesh))
    numFaces = mfnMesh.numPolygons()

    WSpoint = om.MPoint(0.0,0.0,0.0)

    util2 = om.MScriptUtil()   
    util2.createFromList ((U, V),2)   
    float2ParamUV = util2.asFloat2Ptr()
    
    for i in range(numFaces):
        try:
            mfnMesh.getPointAtUV(i,WSpoint, float2ParamUV, om.MSpace.kWorld) 
            break; #point is in poly
        except:
            continue #point not found!
        
    return WSpoint

f = UvCoordToWorld (random.random(), random.random(), 
cmds.ls(sl=True,type='shape'))
print [f[0], f[1], f[2]]

-- 
You received this message because you are subscribed to the Google Groups 
"Python Programming for Autodesk Maya" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to python_inside_maya+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/python_inside_maya/76460376-4fc1-4266-a3ed-420e2e0ab816%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to