[gameprogrammer] Re: Free Select Tool
- From: Nick Howes <csucew@xxxxxxxxxxxxxxxxx>
- To: gameprogrammer@xxxxxxxxxxxxx
- Date: Sat, 05 Mar 2005 13:14:21 +0000
You could try looking up the "inside test" for polygons... you can use
that to check what is inside a polygon... or look up flood-fill
algorithms if you are trying a freehand pixel-based selection, as those
algorithms select pixels to paint within a region which you can adapt to
make a selection.
I haven't tried any of this but it's what I can think of, hope it helps
Nick H
Scott Harper wrote:
>Okay, this isn't necessarily game-related -- but I want to know how to
>create a free-select tool (the "lasso" tool from
>Photoshop/GIMP/etc...). I've looked all over the internet, but all I
>seem to come up with are links to USING these tools, not PROGRAMMING
>them...
>
>Thanks for any help you can offer.
>
>--Ben
>
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