224   int sign_x, sign_y, step, reverse, i;  in VGLLine()  local
230     step = 1;  in VGLLine()
232     step = -1;  in VGLLine()
287           plot(object, ++x, y += step, reverse,  in VGLLine()
291           plot(object, --x1, y1 -= step, reverse,  in VGLLine()
295           plot(object, x, y += step, reverse, color);  in VGLLine()
298           plot(object, x1, y1 -= step, reverse,  in VGLLine()
318             plot(object, ++x, y += step, reverse, color);  in VGLLine()
323           plot(object, ++x, y += step, reverse, color);  in VGLLine()
327             plot(object, --x1, y1 -= step, reverse, color);  in VGLLine()
342         plot(object, x, y += step, reverse, color);  in VGLLine()
343         plot(object, ++x, y += step, reverse, color);  in VGLLine()
345         plot(object, x1, y1 -= step, reverse, color);  in VGLLine()
346         plot(object, --x1, y1 -= step, reverse, color);  in VGLLine()
352           plot(object, ++x, y += step, reverse,  in VGLLine()
357           plot(object, --x1, y1 -= step, reverse,  in VGLLine()
361           plot(object, x, y += step, reverse, color);  in VGLLine()
364           plot(object, x1, y1 -= step, reverse, color);  in VGLLine()
373         plot(object, ++x, y += step, reverse, color);  /* pattern 4 */  in VGLLine()
375           plot(object, ++x, y += step, reverse,  in VGLLine()
378           plot(object, --x1, y1 -= step, reverse,  in VGLLine()
384             plot(object, ++x, y += step, reverse, color);  in VGLLine()
389           plot(object, ++x, y += step, reverse, color);  in VGLLine()
394               plot(object, --x1, y1 -= step, reverse, color);  in VGLLine()