NAME

patch - draws a surface patch

SPECIFICATION

C
patch(geomx, geomy, geomz)
Matrix geomx, geomy, geomz;
rpatch(geomx, geomy, geomz, geomw)
Matrix geomx, geomy, geomz, geomw;

FORTRAN
subroutine patch(geomx, geomy, geomz)
real geomx(4,4), geomy(4,4), geomz(4,4)
subroutine rpatch(geomx, geomy, geomz, geomw)
real geomx(4,4), geomy(4,4), geomz(4,4), geomw(4,4)

Pascal
procedure patch(geomx, geomy, geomz: Matrix);
procedure rpatch(geomx, geomy, geomz, geomw: Matrix);

DESCRIPTION

patch and rpatch draw a surface patch using the current patchbasis, patchprecision, and patchcurves.  rpatch draws a rational surface patch.  The shape of the patch is determined by the control points specified in geomx, geomy, and geomz.  geomw specifies the rational component of the patch to rpatch. 

SEE ALSO

patchbasis, patchprecision, patchcurves, defbasis

Version 2.4  —  May 08, 1986