LoginLogin

Fast Filled Circle

Root / Submissions / [.]

SimeonCreated:
Version:1.0Size:1.6
A fast function to draw a filled circle without any graphical artifacts.

Instructions:

This is slightly faster performance than drawing repetitive circles from 1 to the radius. It uses the overlapping rectangles method which has the smallest rectangle count.
ProgramsToolsDevelopment ToolGraphics
12Me21#1
It's actually twice as fast to just do: 
DEF CIRCLE X,Y,R,COL
 GCIRCLE X,Y,R,8
 GPAINT X,Y,COL,8
 GCIRCLE X,Y,R,COL
END
This works by drawing a circle in a color that won't be used anywhere else (8, which is red=0 green=0 blue=8 alpha=0, so it's just transparent)m then using GFILL with that color as the border color. Then you just have to re-draw the outer circle with the color you want. Note: You'll need to add some checks to make sure it doesn't fail when the circle is partially/fully offscreen It would be even faster to just use sprites for the circles, since the shape never changes, which would work in most situations.
Simeon#2
Replying to:12Me21
It's actually twice as fast to just do: 
DEF CIRCLE X,Y,R,COL
 GCIRCLE X,Y,R,8
 GPAINT X,Y,COL,8
 GCIRCLE X,Y,R,COL
END
This works by drawing a circle in a color that won't be used anywhere else (8, which is red=0 green=0 blue=8 alpha=0, so it's just transparent)m then using GFILL with that color as the border color. Then you just have to re-draw the outer circle with the color you want. Note: You'll need to add some checks to make sure it doesn't fail when the circle is partially/fully offscreen It would be even faster to just use sprites for the circles, since the shape never changes, which would work in most situations.
That's brilliant!!
Simeon#3
To anybody reading this, go to https://smilebasicsource.com/page?pid=1051