Hey all,
I am trying to create a tool for modeling that will delete all faces that
are located in negative x (as a modeler, I've always wanted something like
this). I've got most of it working - I create a list of the faces, then
loop through them, determining their position using the positions of their
verts. It's the last line, or few lines where I'm a bit lost. I'm
appending all faces that come back negative into a list, then trying to
delete that list. Clearly, I'm doing something wrong there.
If you notice anything else that could be done better, feel free to let me
know!
If anyone can help out a lost beginner, I'd be extremely thankful!
import maya.cmds as cmds
#Define object name
curSel = (cmds.ls (sl=True)[0])
numOfFaces = len(cmds.getAttr(curSel + ".f[:]"))
for i in xrange (0,numOfFaces):
cmds.select(curSel + ".f[%d]" %i, add=1)
#Create list (array) of faces in current object
faceIndexList = cmds.ls(sl=True,fl=True)
#Loop through the list of faces from above
for i in faceIndexList:
#Selects the current face
cmds.select (i)
#Converts selection to verts (tv == toVerts)
faceToVerts = cmds.polyListComponentConversion (tv=1)
cmds.select (faceToVerts)
#Stores the selected verts into a variable (fl == Flatten, which lists
out things individually)
vertIndexList = (cmds.ls (sl=True,fl=True))
#Creating empty position variables to later store the vectors of the
verts in
posX = 0
posY = 0
posZ = 0
#Loops through verts in vertIndexList
for j in vertIndexList:
cmds.select (j)
#Sets the total number of selected verts (would be 4 in most cases)
totalVertNum = len(vertIndexList)
#Gets the vector location of each vert
vertPos = cmds.xform(query=True, translation=True)
#Supposed add the X value of the selected vert to the value from
the previous itteration (starts at 0)
posX += vertPos[0]
#Supposed add the Y value of the selected vert to the value from
the previous itteration (starts at 0)
posY += vertPos[1]
#Supposed add the Z value of the selected vert to the value from
the previous itteration (starts at 0)
posZ += vertPos[2]
#Finds the center of the face by creating a vector
faceCenter = (posX/totalVertNum), (posY/totalVertNum), (posZ/
totalVertNum)
#Creates empty list to store negative faces in
negFaces = []
#If the faceCenterer variable is negative
if faceCenter[0] < 0:
#Appending all the negative x faces into negFaces
negFaces.append (i)
#I thought this would delete all faces that had been appended into
negFaces, but clearly I thought wrong!
for i in negFaces:
cmds.delete (i)
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