public void MidPoint_Ellipse1(Ellipse ellipse)//,bool dottedEllipseFlag=false)
{
bool dottedEllipseFlag = ellipse.getDottedEllipseFlag();
//int x1, y1, x2, y2, centerX, centerY;
int x, y, fx, fy, a2, b2, p, a, b;
//if (!ellipse.getChangeFlag())
//{
//a = (int)ellipse.getWidthRadius();
//b = (int)ellipse.getHeightRadius();
//}
//else
//{
//if (Math.Abs((int)ellipse.getEndHightPoint().Y) > Math.Abs((int)ellipse.getEndWidthPoint().Y))
//{
a = (int)ellipse.getHeightRadius();
b = (int)ellipse.getWidthRadius();
//}
//else
//{
// b = (int)ellipse.getHeightRadius();
// a = (int)ellipse.getWidthRadius();
//}
//}
a2 = a * a;
b2 = b * b;
x = 0;
y = b;
fx = 0;
fy = 2 * a2 * y;
put4pixel(x, y, ellipse.getStartPoint().X, ellipse.getStartPoint().Y, ellipse.getColor());
p = round(b2 - (a2 * b) + (0.25 * a2));//p=b2 - a2*b +a2/4
//int count = 0;
while (fx < fy)
{
x++;
fx += 2 * b2;
//delay(50);
if (p < 0)
{
p += b2 * (2 * x + 3);//p=p + b2*(2x +3)
}
else
{
y--;
p += b2 * (2 * x + 3) + a2 * (2 - 2 * y);//p=p +b2(2x +3) +a2(2-2y)
fy -= 2 * a2;
}
//if (dottedEllipseFlag && count % 20 == 0)
// put4pixel(x, y, ellipse.getStartPoint().X, ellipse.getStartPoint().Y, ellipse.getColor(), dottedEllipseFlag);
//else
put4pixel(x, y, ellipse.getStartPoint().X, ellipse.getStartPoint().Y, ellipse.getColor());
//count++;
}
p = round(b2 * (x + 0.5) * (x + 0.5) + a2 * (y - 1) * (y - 1) - a2 * b2);
//
//count = 0;
while (y > 0)
{
y--;
fy -= 2 * a2;
// delay(50);
if (p >= 0)
{
p += a2 * (3 - 2 * y); //p=p +a2(3-2y)
}
else
{
x++;
fx += 2 * b2;
p += b2 * (2 * x + 2) + a2 * (3 - 2 * y);//p=p+ b2(2x +2) + a2(3-2y)
}
//if (dottedEllipseFlag && count % 20 == 0)
put4pixel(x, y, ellipse.getStartPoint().X, ellipse.getStartPoint().Y, ellipse.getColor());//, dottedEllipseFlag);
//else if (dottedEllipseFlag && count % 20 == 0)
//put4pixel(ellipse.getStartPoint().X, ellipse.getStartPoint().Y, x, y, ellipse.getColor());
//count++;
}
}
