gr.open 0, 0, 0, 0
gr.orientation 1
gr.screen w,h


gr.set.antialias 0

!gr.set.stroke 5%толщина точки

r=255:g=255:b=255:a=255


for y=0 to 400 step 50
for x=0 to 400 step 50

gr.color a,r,g,b,0

!gr.point n,x,y% точки

gr.circle n,x,y,50

gr.render

next x
next y

pause 1000