Lines Matching defs:ZERO
82 #define ZERO 0.00001 /*determing whether a loop is a rectngle or not*/
83 #define equalRect(a,b) ((glu_abs(a-b) <= ZERO)? 1:0) //only used in tessellating a rectangle
245 if( (glu_abs(loop->tail()[0] - loop->head()[0])<=ZERO) &&
246 (glu_abs(loop->next->tail()[1] - loop->next->head()[1])<=ZERO) &&
247 (glu_abs(loop->prev->tail()[1] - loop->prev->head()[1])<=ZERO) &&
248 (glu_abs(loop->prev->prev->tail()[0] - loop->prev->prev->head()[0])<=ZERO)
252 ( (glu_abs(loop->tail()[1] - loop->head()[1]) <= ZERO) &&
253 (glu_abs(loop->next->tail()[0] - loop->next->head()[0]) <= ZERO) &&
254 (glu_abs(loop->prev->tail()[0] - loop->prev->head()[0]) <= ZERO) &&
255 (glu_abs(loop->prev->prev->tail()[1] - loop->prev->prev->head()[1]) <= ZERO)