(ND-axes CAMID [CLUSTERNAME [Xindex Yindex Zindex [Windex]]])
The ND-axes command configures all this. It specifies a camera's cluster membership, and the set of N-space axes which become the 3-D camera's X, Y, and Z axes. Axes are specified by their indices, from 1 to N for an N-dimensional space. Cluster CLUSTERNAME is implicitly created if not previously known.
In principle it is possible to map the homogeneous component of a
conformal 4 point to some other index; this would be done by specifying
0 for one of
Zindex and giving
Windex some positive value. This is probably not useful because
Geomview does not support non-Euclidean geometries for in higher
To read a camera's configuration, use
(echo (ND-axes CAMID)).
The return value is an array of 4 integers, the last one should 0.