TYPE: SOP
TITLE: PolyStitch SOP

PolyStitch attempts to stitch polygonal surfaces together, thereby
eliminating cracks that result from evaluating the surfaces at
differing levels of detail.

First, the boundaries of all the polygons to be stitched are found.
An edge is a boundary edge if it is shared by no other polygon.  The
uniqueness of edges is determined by point numbers, and not by spatial
positioning.   Each boundary is then split at each "corner" into a
number of pieces.  A list of corner points can be manually specified,
or any point at which the boundary changes direction by a certain
amount can be flagged as a corner.

Finally, any two boundary pieces that are within the tolerance of each
other are stitched together.  This is performed by snapping the points
of the high detail edge to those of the low detail edge.

Parameters:

    Polygons to Stitch - The polygons to consider for stitching.
    Corner Points      - A list of point numbers that are to be
                         considered breaks in the boundary edges.
    Max Dist to Stitch - The maximum distance which two edges can be from 
                         each other and still be stitched together      /tol3d
    Consolidate Points - When several points along ONE edge are snapped to 
                         the same position, consolidate them into a single 
                         point.                                   /consolidate
    Automatically Find Corners - Whenever an edge changes direction at a 
                         point more than the specified angle, mark that point 
			 as a corner.                              /findcorner
    Corner Angle       - The maximum angle a boundary can change at a
                         point before it becomes a corner.              /angle

See also: PolyLoft, PolyKnit
