🚀 go-pugleaf

        - splft2 *or* interp does not work. Make a interpl window while using
          mwm instead of 4Dwm) of size 870*580 pop up the colormap, select
          color #3 (green) for the left color in interp and color #4 (yellow)
          for the rigth color. In the lower left corner of interp blue
          pixels will show up (color #5). The problem does not depend on mwm
          or 4Dwm, but does depend on the window size.


	  looking into the code of interp, this bug is most likely in splft2
	  because the argument to splft2 in interp are:

    intens[0] = startcolor;
    intens[1] = startcolor;
    intens[2] = endcolor;
    intens[3] = endcolor;

    parray[0][0] = MINX+1.0;
    parray[0][1] = MINY+1.0;
    parray[1][0] = MINX+1.0;
    parray[1][1] = MINY-1.0+(MAXY-MINY)*0.25;
    parray[2][0] = MAXX-1.0;
    parray[2][1] = MINY-1.0+(MAXY-MINY)*0.25;
    parray[3][0] = MAXX-1.0;
    parray[3][1] = MINY+1.0;

    splf2(4, parray, intens);

	  the float arguments must be exactly on a perfect rectangle, but
	  for some reason the result is wrong.

--frans
-- 
--    ==============================================================    --
----  ===  frans van hoesel             hoesel@igc.ethz.ch       ===  ----
--    ==============================================================    --