|void d3base (isbase, color)||D#PLT.C||Level 3|
|int isbase||= 1, the 3-D surface will be connected to the x-y
plane at its four corners and the x-y plane will be outlined.
= 0 (the default), the x-y plane will not be drawn.
|int color||The color number for the base.|
|This function was previously called base(), but that name conflicted with a key word in some compiler libraries.|