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gl_trisetdrawpoint(3)         Svgalib User Manual        gl_trisetdrawpoint(3)


NAME

       gl_trisetdrawpoint - set a triangle drawing function


SYNOPSIS

       #include <triangle.h>

       void gl_trisetdrawpoint(void (setpixelfunc) (int x, int y, int color)
       );


DESCRIPTION

       If this function is called with setpixelfunc non-zero, then the
       function setpixelfunc is used from there after to draw each pixel
       (instead of the usual direct screen buffer writes).

       This function need never be used, except if you want to use your own
       pixel drawing function for extra effects. If you use this feature, you
       can be assured that none of the triangle routines will access the
       hardware, enabling portability to other environments.

       Beware, these functions are not a direct part of the svgalib library.
       Instead their source is part of svgalib and can be found in the
       threeDkit/ subdirectory of the original svgalib distribution. However,
       it is not installed in the system by default, s.t. it is unclear where
       you can find it if your svgalib was installed by some linux
       distribution.

       In case of any such problem, simply get an svgalib distribution from
       the net. Yo don't need to install it. Just make in the threeDkit/
       subdirectory. As of this writing, svgalib-1.2.12.tar.gz is the latest
       version and can be retrieved by ftp from sunsite.unc.edu at
       /pub/Linux/libs/graphics and tsx-11.mit.edu at /pub/linux/sources/libs
       which will most probably be mirrored by a site close to you.

       The functions are defined in the tri.o and triangl.o

       The functions are defined in the tri.o and triangl.o files (or their
       resp. sources) which you must link to your program.


SEE ALSO

       vgagl(7), svgalib(7), threedkit(7), gl_striangle(3), gl_swtriangle(3),
       gl_triangle(3), gl_trigetcolorlookup(3), gl_trisetcolorlookup(3),
       gl_wtriangle(3), plane(6), wrapdemo(6).


AUTHOR

       This manual page was edited by Michael Weller <eowmob@exp-math.uni-
       essen.de>. The demos, the initial documentation and the whole threedkit
       stuff was done by Paul Sheer <psheer@icon.co.za>.

       Paper mail:
              Paul Sheer
              P O BOX 890507
              Lyndhurst
              Johannesburg 2106
              South Africa

       Donations (by check or postal order) will be appreciated and will
       encourage further development of this software. However this is
       strictly on a voluntary basis where this software falls under the GNU
       LIBRARY GENERAL PUBLIC LICENSE.

Svgalib (>= 1.2.11)               2 Aug 1997             gl_trisetdrawpoint(3)

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