Polylistcomponentconversion

[nier]

Hi!!

I have the following function.... the problem is that everytime it gives me always the same vertex for all the faces... it doesn't matter if I am passing to it poly.f[2] or poly.f[5] for example, it always get the vertices [0:3]....

anyone knows what might be the problem??

CODE
def centerOfFace(facet):
    #find the vertices that define that face.
    vertex = cmds.polyListComponentConversion(facet, ff=1, tv=1)  ###THIS COMMAND IS GIVING ME HEADACHES
    cmds.select(vertex, r=1)
    vertexFlat = cmds.ls(sl=1, fl=1)

    #find out how many vertices define that face
    vertCount = len(vertexFlat)
    print vertexFlat

    #for each vertex go through and find it's world space position.
    vertPositionSumX = 0.
    vertPositionSumY = 0.
    vertPositionSumZ = 0.
    for a in range(0, vertCount, 1):
        coordinate = cmds.pointPosition(vertexFlat[a], w=1)
        vertPositionSumX += coordinate[0]
        vertPositionSumY += coordinate[1]
        vertPositionSumZ += coordinate[2]

    centroidX = vertPositionSumX/float(vertCount)
    centroidY = vertPositionSumY/float(vertCount)
    centroidZ = vertPositionSumZ/float(vertCount)

    return [centroidX, centroidY, centroidZ]

thanks in advance!!
lg,
Daniel

[uni55]

i tried your def on a few different faces and it works fine. and reading though the script i cant find anything wrong,maybe your problem is at the inputpart when u enter "facet"

i even checked the results with this script: (only works for 4 vertex,but you can select multiple faces)

CODE
import maya.cmds as cmds

for faces in cmds.ls (sl=1,fl=1):

    vtxCoords=cmds.xform (faces,q=1,t=1,ws=1)

    centerX=((vtxCoords[0]+vtxCoords[3]+vtxCoords[6]+vtxCoords[9])/4)
    centerY=((vtxCoords[1]+vtxCoords[4]+vtxCoords[7]+vtxCoords[10])/4)
    centerZ=((vtxCoords[2]+vtxCoords[5]+vtxCoords[8]+vtxCoords[11])/4)

    cmds.spaceLocator (p=(centerX,centerY,centerZ))

i cant find anything wrong sry:D;

[uni55]

try this

CODE
#source def centerOfFace script
#select faces
#execute this

sel=cmds.ls (sl=1,fl=1)
for selection in sel:

    a=centerOfFace(selection)
    cmds.spaceLocator (p=(a[0],a[1],a[2]))

works for me.

the def can only take 1 input (facename) at a time since what it does is calculate the center of a single face through its vertices.