"%f,%f('!')?" representing the point (x,y).
"%f,%f('!')?"
The optional '!' indicates the node position should not change (input-only).
'!'
If dim=3, point may also have the format "%f,%f,%f('!')?" to represent the point (x,y,z).
"%f,%f,%f('!')?"
"%f,%f('!')?"representing the point (x,y).The optional
'!'indicates the node position should not change (input-only).If dim=3, point may also have the format
"%f,%f,%f('!')?"to represent the point (x,y,z).