lib/libvgl/simple.c

224   int sign_x, sign_y, step, reverse, i;
238     reverse = 1;
240     reverse = 0;
261   plot(object, x, y, reverse, color);
265   plot(object, x1, y1, reverse, color);  /* plot first two points */
277         plot(object, x, y, reverse, color);
278         plot(object, ++x, y, reverse, color);
280         plot(object, x1, y1, reverse, color);
281         plot(object, --x1, y1, reverse, color);
286           plot(object, x, y, reverse, color);
287           plot(object, ++x, y += step, reverse,
290           plot(object, x1, y1, reverse, color);
291           plot(object, --x1, y1 -= step, reverse,
295           plot(object, x, y += step, reverse, color);
296           plot(object, ++x, y, reverse, color);
298           plot(object, x1, y1 -= step, reverse,
300           plot(object, --x1, y1, reverse, color);
309         plot(object, ++x, y, reverse, color);  /* pattern 1 */
311           plot(object, ++x, y, reverse, color);
313           plot(object, --x1, y1, reverse, color);
316           plot(object, ++x, y, reverse, color);  /* pattern 2  */
318             plot(object, ++x, y += step, reverse, color);
320             plot(object, --x1, y1, reverse, color);
323           plot(object, ++x, y += step, reverse, color);
325             plot(object, ++x, y, reverse, color);
327             plot(object, --x1, y1 -= step, reverse, color);
342         plot(object, x, y += step, reverse, color);
343         plot(object, ++x, y += step, reverse, color);
345         plot(object, x1, y1 -= step, reverse, color);
346         plot(object, --x1, y1 -= step, reverse, color);
351           plot(object, x, y, reverse, color);
352           plot(object, ++x, y += step, reverse,
356           plot(object, x1, y1, reverse, color);
357           plot(object, --x1, y1 -= step, reverse,
361           plot(object, x, y += step, reverse, color);
362           plot(object, ++x, y, reverse, color);
364           plot(object, x1, y1 -= step, reverse, color);
365           plot(object, --x1, y1, reverse, color);
373         plot(object, ++x, y += step, reverse, color);  /* pattern 4 */
375           plot(object, ++x, y += step, reverse,
378           plot(object, --x1, y1 -= step, reverse,
382           plot(object, ++x, y, reverse, color);  /* pattern 2  */
384             plot(object, ++x, y += step, reverse, color);
386             plot(object, --x1, y1, reverse, color);
389           plot(object, ++x, y += step, reverse, color);
391             plot(object, ++x, y, reverse, color);
394               plot(object, --x1, y1 -= step, reverse, color);
396               plot(object, --x1, y1, reverse, color);