filled ellipse? - GameCreators Forum

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That1Smart Guy

15

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Joined: 26th Feb 2009

Location: Somewhere...... yep

Posted: 23rd Jun 2009 06:22

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ok I found a way to make a filled circle using distance formula and these two functions:

+ Code Snippet

function draw_filled_circle(cx,cy,rad)

   for x=cx-rad to cx+rad
      for y=cy-rad to cy+rad

         if distance#(cx,cy,x,y)<= rad then dot x,y

      next y
   next x

endfunction




function distance#(x1,y1,x2,y2)

   dist#=abs(sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1)))

endfunction dist#

now how could I make a filled ellipse, either using a similar method or not

There are only 10 kinds of people in the world, those who understand binary and those who dont

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Latch

17

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Joined: 23rd Jul 2006

Location:

Posted: 23rd Jun 2009 06:33 Edited at: 24th Jun 2009 00:32

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easy but slow ways:

circle:

+ Code Snippet

radius=32
x=100
y=100

for r=0 to radius
   circle x,y,r
   circle x,y+1,r
next r

ellipse

+ Code Snippet

xrad=32
yrad=16
x=100
y=100

for xr=0 to xrad
   for yr=0 to yrad
      ellipse x,y,xr,yr
      ellipse x,y+1,xr,yr
   next yr
next xr

Enjoy your day.

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Phaelax

DBPro Master

21

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Joined: 16th Apr 2003

Location: Metropia

Posted: 23rd Jun 2009 07:56

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I believe this is what you want: http://dbchallenge.com/showcode.php?snippet=11

[url="http://dbcc.zimnox.com"]

[/url]

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That1Smart Guy

15

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Joined: 26th Feb 2009

Location: Somewhere...... yep

Posted: 23rd Jun 2009 17:38

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@Phaelax:

wow thats exactly what I wanted!

@latch:

that would also work, never even thought of that

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DarkBASIC Discussion / filled ellipse?