Lines Matching refs:y1
191 double x1, double y1)
193 if (y0 <= y1) {
194 return accumulateLine(x0, y0, x1, y1, 1);
196 return accumulateLine(x1, y1, x0, y0, -1);
201 double x1, double y1,
204 if (yhi <= y0 || ylo >= y1) {
210 if (y0 == y1) {
215 double dy = (y1 - y0);
223 if (yhi < y1) {
228 yend = y1;