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ACS Basic Graphics Programming Manual
26 February 2015
Drawing Arcs
How about drawing arcs? You could compute and draw each pixel making up the arc, or have ACS Basic draw it
for you if you provide the center, width, height and starting/ending angles. Here is the command format:
DRAW.ARC x,y,width,height,start,end,color
x center x coordinate (0 – 319)
Draws an arc centered at x,y of
y center y coordinate (0 – 240)
width,height beginning at start
width arc width (0 – 319)
angle and ending on end angle on
height arc height (0 – 240)
the current drawing @SURFACE using
start starting angle (0 - 359)
color
end ending angle (0 – 359)
color RGB565 box pixels color
Here is the program:
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30
REM draw a red 90 degree arc at the screen center
@ANSI.ENABLE=0
DRAW.FILL 0,0,320,240,RGB(0,0,0)
DRAW.ARC 160,120,100,100,45,135,RGB(255,0,0)
GOTO 30
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