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Lines Matching defs:sx

910             int sx, sy, x0, y0, x1, y1, r, k;
921                 sx = cvRound(vx*ONE/fabs(vy));
928                 sx = vx < 0 ? -ONE : ONE;
936                 x0 += min_radius * sx;
939                 for( x1 = x0, y1 = y0, r = min_radius; r <= max_radius; x1 += sx, y1 += sy, r++ )
948                 x0 -= min_radius * sx;
950                 sx = -sx; sy = -sy;