Lines Matching full:step
166 * Symmetric Double Step Line Algorithm by Brian Wyvill from
188 int sign_x, sign_y, step, reverse, i; in VGLLine() local
194 step = 1; in VGLLine()
196 step = -1; in VGLLine()
251 plot(object, ++x, y += step, reverse, in VGLLine()
255 plot(object, --x1, y1 -= step, reverse, in VGLLine()
259 plot(object, x, y += step, reverse, color); in VGLLine()
262 plot(object, x1, y1 -= step, reverse, in VGLLine()
282 plot(object, ++x, y += step, reverse, color); in VGLLine()
287 plot(object, ++x, y += step, 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()
316 plot(object, ++x, y += step, reverse, in VGLLine()
321 plot(object, --x1, y1 -= step, reverse, in VGLLine()
325 plot(object, x, y += step, reverse, color); in VGLLine()
328 plot(object, x1, y1 -= step, 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()
348 plot(object, ++x, y += step, reverse, color); in VGLLine()
353 plot(object, ++x, y += step, reverse, color); in VGLLine()
357 if (D > c) /* step 3 */ in VGLLine()
358 plot(object, --x1, y1 -= step, reverse, color); in VGLLine()
359 else /* step 2 */ in VGLLine()