How do I create a curved line or filled circle or generally a circle using C++/SDL?
- by NoobScratcher
Hello I've been trying for ages to make a pixel circle using the putpixel function provided by SDL main website here is that function :
void putpixel(int x,int y , int color , SDL_Surface* surface)
{
unsigned int *ptr = static_cast <unsigned int *> (surface->pixels);
int offset = y * (surface->pitch/sizeof(unsigned int));
ptr[offset + x] = color;
}
and my question is how do I curve a line or create an circle arc of pixels or any other curved shape then a rectangle or singular pixel or line.
for example here are some pictures
filled pixel circle below
enter link description here
now my idea was too
change the x and y value of the pixel position using + and - to create the curves but in practice didn't provide the correct results
what my results are in this is to be able to create a circle that is made out of pixels only nothing else.
thank you for anyone who takes the time to read this question
thanks! :D
