88         result->writeText("pop ");  in interpolate_color_code()
95             result->writeText("dup ");  in interpolate_color_code()
100             result->writeText(" ");  in interpolate_color_code()
104                 result->writeText(" mul ");  in interpolate_color_code()
108                 result->writeText(" add ");  in interpolate_color_code()
113             result->writeText("exch\n");  in interpolate_color_code()
156     result->writeText("dup 0 le {pop ");  in gradient_function_code()
158     result->writeText(" ");  in gradient_function_code()
160     result->writeText(" ");  in gradient_function_code()
162     result->writeText(" }\n");  in gradient_function_code()
172         result->writeText("{dup ");  in gradient_function_code()
174         result->writeText(" le {");  in gradient_function_code()
177             result->writeText(" sub\n");  in gradient_function_code()
182         result->writeText("}\n");  in gradient_function_code()
186     result->writeText("{pop ");  in gradient_function_code()
188     result->writeText(" ");  in gradient_function_code()
190     result->writeText(" ");  in gradient_function_code()
194         result->writeText("} ifelse\n");  in gradient_function_code()
297         result->writeText("dup truncate sub\n");  // Get the fractional part.  in tileModeCode()
298         result->writeText("dup 0 le {1 add} if\n");  // Map (-1,0) => (0,1)  in tileModeCode()
305         result->writeText("abs "                 // Map negative to positive.  in tileModeCode()
347     code->writeText(" dup ");             // x y y  in apply_perspective_to_coordinates()
349     code->writeText(" mul "               // x y y*p1  in apply_perspective_to_coordinates()
352     code->writeText(" mul ");             // x y y*p1 x*p0  in apply_perspective_to_coordinates()
354     code->writeText(" add "               // x y y*p1 x*p0+p2  in apply_perspective_to_coordinates()
368     function->writeText("{");  in linearCode()
372     function->writeText("pop\n");  // Just ditch the y value.  in linearCode()
375     function->writeText("}");  in linearCode()
381     function->writeText("{");  in radialCode()
386     function->writeText("dup "      // x y y  in radialCode()
396     function->writeText("}");  in radialCode()
416     function->writeText("{");  in twoPointConicalCode()
420     function->writeText("2 copy ");  in twoPointConicalCode()
424     function->writeText(" mul exch ");  in twoPointConicalCode()
426     function->writeText(" mul add ");  in twoPointConicalCode()
428     function->writeText(" add -2 mul dup dup mul\n");  in twoPointConicalCode()
431     function->writeText("4 2 roll dup mul exch dup mul add ");  in twoPointConicalCode()
433     function->writeText(" sub dup 4 1 roll\n");  in twoPointConicalCode()
441         function->writeText("pop pop div neg dup ");  in twoPointConicalCode()
445         function->writeText(" mul ");  in twoPointConicalCode()
447         function->writeText(" add\n");  in twoPointConicalCode()
450         function->writeText("0 lt {pop false} {true} ifelse\n");  in twoPointConicalCode()
459         function->writeText(" mul sub dup\n");  in twoPointConicalCode()
462         function->writeText("0 ge {\n");  in twoPointConicalCode()
466         function->writeText("sqrt exch dup 0 lt {exch -1 mul} if");  in twoPointConicalCode()
467         function->writeText(" add -0.5 mul dup\n");  in twoPointConicalCode()
471         function->writeText(" div\n");  in twoPointConicalCode()
474         function->writeText("3 1 roll div\n");  in twoPointConicalCode()
477         function->writeText("2 copy gt {exch} if\n");  in twoPointConicalCode()
480         function->writeText("dup ");  in twoPointConicalCode()
482         function->writeText(" mul ");  in twoPointConicalCode()
484         function->writeText(" add\n");  in twoPointConicalCode()
487         function->writeText(" 0 gt {exch pop true}\n");  in twoPointConicalCode()
490         function->writeText("{pop dup\n");  in twoPointConicalCode()
492         function->writeText(" mul ");  in twoPointConicalCode()
494         function->writeText(" add\n");  in twoPointConicalCode()
497         function->writeText("0 le {pop false} {true} ifelse\n");  in twoPointConicalCode()
498         function->writeText("} ifelse\n");  in twoPointConicalCode()
501         function->writeText("} {pop pop pop false} ifelse\n");  in twoPointConicalCode()
505     function->writeText("{");  in twoPointConicalCode()
510     function->writeText("} {0 0 0} ifelse }");  in twoPointConicalCode()
516     function->writeText("{exch atan 360 div\n");  in sweepCode()
519     function->writeText("}");  in sweepCode()