资 源 简 介
void gui_fill_circle(u16 x0,u16 y0,u16 r,u16 color)
{
u32 i;
u32 imax = ((u32)r*707)/1000+1;
u32 sqmax = (u32)r*(u32)r+(u32)r/2;
u32 x=r;
gui_draw_hline(x0-r,y0,2*r,color);
for (i=1;i<=imax;i++)
{
if ((i*i+x*x)>sqmax)// draw lines from outside
{
if (x>imax)
{
gui_draw_hline (x0-i+1,y0+x,2*(i-1),color);
gui_draw_hline (x0-i+1,y0-x,2*(i-1),color);
}
x--;
}
// draw lines from inside (center)
gui_draw_hline(x0-x,y0+i,2*x,color);
gui_draw_hline(x0-x,y0-i,2*x,color);
}
}
//两个数之差的绝对值
//x1,x2：需取差值的两个数
//返回值：|x1-x2|
u16 my_abs(u16 x1,u16 x2)
{
if(x1>x2)return x1-x2;
else return x2-x1;
}
//画一条粗线
//(x1,y1),(x2,y2):线条的起始坐标
//size：线条的粗细程度
//color：线条的颜色
void lcd_draw
