Lines Matching refs:dx
344 jdouble x, jdouble y, jdouble dx, jdouble dy,
348 jdouble xbot = x + dx;
366 if (dx < -MIN_DELTA || dx > MIN_DELTA) {
367 /* dx is not vertical */
372 linedx = dx / dy;
373 celldy = dy / dx;
379 if (dx < 0) {
391 /* dx is essentially vertical */
407 pEdge->linedx = dx;
408 pEdge->celldx = dx;
502 jdouble x, y, xnext, ynext, xlast, ylast, dx, dy, mult; \
510 dx = (pEDGE)->celldx; \
526 xnext += dx; \
966 // dx,dy for line width in the "1" and "2" directions.