This attribute controls the behaviour of the
astSimplify method when applied to a
Polygon. The simplified Polygon is created by transforming the vertices from the
Frame
in which the Polygon was originally defined into the Frame currently represented by
the Polygon. If SimpVertices is non-zero (the default) then this simplified
Polygon is returned without further checks. If SimpVertices is zero, a check is
made that the edges of the new Polygon do not depart significantly from the
edges of the original Polygon (as determined by the uncertainty associated
with the Polygon). This could occur, for instance, if the
Mapping frrm the
original to the current Frame is highly non-linear. If this check fails, the
original unsimplified Polygon is returned without change.