Hi Marc,

I'm trying to duplicate what Felipe did months ago with Graphics32.
See attached image.  I have now implemented Wu's anti-aliased line
drawing algorithm in fpGUI and wanted to recreate that example.  :-)

My spirals seem to be way to big or lob sided (one side expands more
than the other).  I'll try what you said and report back.

Thanks,
  - Graeme -


On 02/12/2007, Marc Weustink <[EMAIL PROTECTED]> wrote:
>
> Bitmap.Canvas.LineTo(
>    Round(X + Cos(Theta) * Theta),
>    Round(Y + Sin(Theta) * Theta)
> ):
>
> (or do I miss something here ?)
>
> No that you only get a spiral with max radius = 15 here. If yo want to
> draw it in a 100x100 box, with x,y as center:
>
> Bitmap.Canvas.LineTo(
>    Round(X + Cos(Theta) * Theta * 50 / 15),
>    Round(Y + Sin(Theta) * Theta * 50 / 15)
> ):
>
>
> Marc

<<attachment: Screenshot_3.png>>

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