188   int sign_x, sign_y, step, reverse, i;  in VGLLine()  local
202     reverse = 1;  in VGLLine()
204     reverse = 0;  in VGLLine()
225   plot(object, x, y, reverse, color);  in VGLLine()
229   plot(object, x1, y1, reverse, color);  /* plot first two points */  in VGLLine()
241         plot(object, x, y, reverse, color);  in VGLLine()
242         plot(object, ++x, y, reverse, color);  in VGLLine()
244         plot(object, x1, y1, reverse, color);  in VGLLine()
245         plot(object, --x1, y1, reverse, color);  in VGLLine()
250           plot(object, x, y, reverse, color);  in VGLLine()
251           plot(object, ++x, y += step, reverse,  in VGLLine()
254           plot(object, x1, y1, reverse, color);  in VGLLine()
255           plot(object, --x1, y1 -= step, reverse,  in VGLLine()
259           plot(object, x, y += step, reverse, color);  in VGLLine()
260           plot(object, ++x, y, reverse, color);  in VGLLine()
262           plot(object, x1, y1 -= step, reverse,  in VGLLine()
264           plot(object, --x1, y1, reverse, color);  in VGLLine()
273         plot(object, ++x, y, reverse, color);  /* pattern 1 */  in VGLLine()
275           plot(object, ++x, y, reverse, color);  in VGLLine()
277           plot(object, --x1, y1, reverse, color);  in VGLLine()
280           plot(object, ++x, y, reverse, color);  /* pattern 2  */  in VGLLine()
282             plot(object, ++x, y += step, reverse, color);  in VGLLine()
284             plot(object, --x1, y1, reverse, color);  in VGLLine()
287           plot(object, ++x, y += step, reverse, color);  in VGLLine()
289             plot(object, ++x, y, reverse, color);  in VGLLine()
291             plot(object, --x1, y1 -= step, reverse, color);  in VGLLine()
306         plot(object, x, y += step, reverse, color);  in VGLLine()
307         plot(object, ++x, y += step, reverse, color);  in VGLLine()
309         plot(object, x1, y1 -= step, reverse, color);  in VGLLine()
310         plot(object, --x1, y1 -= step, reverse, color);  in VGLLine()
315           plot(object, x, y, reverse, color);  in VGLLine()
316           plot(object, ++x, y += step, reverse,  in VGLLine()
320           plot(object, x1, y1, reverse, color);  in VGLLine()
321           plot(object, --x1, y1 -= step, reverse,  in VGLLine()
325           plot(object, x, y += step, reverse, color);  in VGLLine()
326           plot(object, ++x, y, reverse, color);  in VGLLine()
328           plot(object, x1, y1 -= step, reverse, color);  in VGLLine()
329           plot(object, --x1, y1, reverse, color);  in VGLLine()
337         plot(object, ++x, y += step, reverse, color);  /* pattern 4 */  in VGLLine()
339           plot(object, ++x, y += step, reverse,  in VGLLine()
342           plot(object, --x1, y1 -= step, reverse,  in VGLLine()
346           plot(object, ++x, y, reverse, color);  /* pattern 2  */  in VGLLine()
348             plot(object, ++x, y += step, reverse, color);  in VGLLine()
350             plot(object, --x1, y1, reverse, color);  in VGLLine()
353           plot(object, ++x, y += step, reverse, color);  in VGLLine()
355             plot(object, ++x, y, reverse, color);  in VGLLine()
358               plot(object, --x1, y1 -= step, reverse, color);  in VGLLine()
360               plot(object, --x1, y1, reverse, color);  in VGLLine()