The Surface Menu
Controls | Construct
Choose "Controls | Construct" to construct a surface by reflecting it in planes.
The "X", "Y" and "Z" buttons add to an existing surface a copy reflected in the yz-, xz- and xy-coordinate planes.
The "abcd" and "apply" widgets are used to reflect in an arbitrary plane: a, b, c and d refer to the equation of the plane
The "apply" button produces the reflected copy.
The reset button removes all reflected copies.
Controls | Clip Plane
The "Controls | Clip Plane" menu item opens the clipping plane panel. A clipping plane remove the parts of the surface that lie on one side of a movable plane. This is useful for viewing the interior structure of complex surfaces by culling away obstructing parts.
Clipping planes are not enabled in the Linux version of iSight due to a Mesa bug.
Controls | Mesh Clip
Choosing "Controls | Mesh Clip" from the iSight menu opens the mesh clipping panel. For surfaces generated as grids, mesh clipping limits the domain to a sub-grid of the domain grid.
Mesh clipping is showing the image of A clipping plane remove the parts of the surface that lie on one side of a movable plane. This is useful for viewing the interior structure of complex surfaces by culling away obstructing parts.
Mesh clipping is enabled only for surfaces in mesh format. These come from geomview MESH-format files or are produces by the iSight-integrated labs. In particular, VRML (.wrl) files are not in mesh format.
Controls | Statistics
To see surface statistics, choose "Controls | Statistics" from the iSight menu. This shows the number of vertices, edges and faces on the current surface.