static void GetQuarterArea(int x1, int y1, int x2, int y2,out int quarter,out int quarter2,out int sq1, out int sq2, out int sq3, out int sq4){
            sq1 = 0;
            sq2 = 0;
            sq3 = 0;
            sq4 = 0;
                quarter = 0;
                quarter2 = 0;
            if (x1 > 0 & y1 > 0) quarter = 1;
            if (x1 > 0 & y1 < 0) quarter = 4;
            if (x1 < 0 & y1 > 0) quarter = 2;
            if (x1 < 0 & y1 < 0) quarter = 3;
            if (x2 > 0 & y2 > 0) quarter2 = 1;
            if (x2 > 0 & y2 < 0) quarter2 = 4;
            if (x2 < 0 & y2 > 0) quarter2 = 2;
            if (x2 < 0 & y2 < 0) quarter2 = 3;
            if (quarter == quarter2) sq1 = (x1 - x2) * (y1 - y2);
            else {
                if (quarter == 2 & quarter2 == 4)
                {
                    sq1 = (x2 * y1);
                    sq2 = (x1 * y1);
                    sq3 = (x1 * y2);
                    sq4 = (x2 * y2);
                }
                if (quarter == 4 & quarter2 == 2)
                {
                    sq1 = (x1 * y2);
                    sq2 = (x1 * y1);
                    sq3 = (x1 * y2);
                    sq4 = (x2 * y2);

                }
                if (quarter == 1 & quarter2 == 3)
                {
                    sq1 = (x1 * y1);
                    sq2 = (x2 * y1);
                    sq3 = (x2 * y2);
                    sq4 = (x1 * y2);

                }
                if (quarter == 3 & quarter2 == 1)
                {
                    sq1 = (x2 * y2);
                    sq2 = (x1 * y2);
                    sq3 = (x1 * y1);
                    sq4 = (x2 * y1);

                }
                if (quarter == 1 & quarter2 == 2){
                    sq1 = (x1 * y1);
                    sq2 = (x2 * y2);

                }
                if (quarter == 2 & quarter2 == 1)
                {
                    sq2 = (x1 * y1);
                    sq1 = (x2 * y2);

                }
                if (quarter == 2 & quarter2 == 3)
                {
                    sq2 = (x1 * y1);
                    sq3 = (x2 * y2);

                }
                if (quarter == 3 & quarter2 == 2)
                {
                    sq3 = (x1 * y1);
                    sq2 = (x2 * y2);

                }
                if (quarter == 3 & quarter2 == 4)
                {
                    sq3 = (x1 * y1);
                    sq4 = (x2 * y2);

                }
                if (quarter == 4 & quarter2 == 3)
                {
                    sq4 = (x1 * y1);
                    sq3 = (x2 * y2);

                }
                if (quarter == 4 & quarter2 == 1)
                {
                    sq4 = (x1 * y1);
                    sq1 = (x2 * y2);

                }
                if (quarter == 1 & quarter2 == 4)
                {
                    sq1 = (x1 * y1);
                    sq4 = (x2 * y2);

                }
            }
            if (sq1 < 0) sq1 = sq1 * (-1);
            if (sq2 < 0) sq2 = sq2 * (-1);
            if (sq3 < 0) sq3 = sq3 * (-1);
            if (sq4 < 0) sq4 = sq4 * (-1);

        }
    }