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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
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16
Task/Bitmap-Midpoint-circle-algorithm/Zkl/bitmap-midpoint-circle-algorithm-1.zkl Normal file
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fcn circle(x0,y0,r,rgb){
x:=r; y:=0; radiusError:=1-x;
while(x >= y){
__sSet(rgb, x + x0, y + y0);
__sSet(rgb, y + x0, x + y0);
__sSet(rgb,-x + x0, y + y0);
__sSet(rgb,-y + x0, x + y0);
self[-x + x0, -y + y0]=rgb; // or do it this way, __sSet gets called as above
self[-y + x0, -x + y0]=rgb;
self[ x + x0, -y + y0]=rgb;
self[ y + x0, -x + y0]=rgb;
y+=1;
if (radiusError<0) radiusError+=2*y + 1;
else{ x-=1; radiusError+=2*(y - x + 1); }
}
}

5
Task/Bitmap-Midpoint-circle-algorithm/Zkl/bitmap-midpoint-circle-algorithm-2.zkl Normal file
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ppm:=PPM(200,200,0xFF|FF|FF);
ppm.circle(100,100,40,00); // black circle
ppm.circle(100,100,80,0xFF|00|00); // red circle
ppm.write(File("foo.ppm","wb"));