Maya + Python：将数据移动到边界框的底部

Question

如何只将所选节点的轴移动到边界框的底部？

# Move the pivot for each selected not to it's center then bottom

import maya.cmds as cmds

curSel = cmds.ls(long = True, selection = True, type = 'dagNode')

for n in curSel:
    bbox = cmds.exactWorldBoundingBox(n)

    cmds.xform(n, cp=1)

Answer 1

bbox是 XYZ min 和 XYZ max 的6个元素列表：[xmin, ymin, zmin, xmax, ymax, zmax]。如果您希望枢轴点为底部中心，则需要平均X，最小Y和平均Z：

bbox = cmds.exactWorldBoundingBox(n)
bottom = [(bbox[0] + bbox[3])/2, bbox[1], (bbox[2] + bbox[5])/2]
cmds.xform(n, piv=bottom, ws=True)