#12 3d plotting problem

[Otto Nojonen]

I am using plplot to view a plotted 3d plane from
different angles and altitudes. 3d plane can be rotated
with mouse in my application.

Problem is this: I would like to rotate the plane so
that I can view the plane directly from above it, but
that seems to be impossible. The "camera" does not
rotate around the plane when I increase the alt
parameter [e.g. in call to plmesh()], instead the
"camera" just moves linearly up and down and stays on
the side of the plane.

I this the it is supposed to be? Or am I doing
something wrong?

I would like to add that if this is the way the camera
is supposed to move, the documentation is a little bit
misleading because the documention says:
"The altitude should be restricted to the range zero to
ninety degrees for proper operation, and represents the
viewing angle above the xy plane."
If alt parameter really represents the viewing _angle_,
the camera should be directly on top of the plane when
alt=90.

[Alan W. Irwin]

Closed (too old).