Quick and simple solution to a lot of similar problems, use [range].
It needs four arguments, the input range (in this case 0 to the size of your
gemwin) as two arguments, and the output range (usually -4 to 4) and it will
convert one into the other. Although to make this work on gem you need one for
each of the x and y axes.
You can do this by re-scaling yourself, although this does take more time and
effort, but also can provide more control. In the end it's your own choice.
Andrew
> From: [email protected]
> To: [email protected]
> Date: Thu, 8 Apr 2010 22:56:37 -0400
> Subject: [PD] gemmouse and pix_data
>
> Hi,
> I'm trying to use gemmouse with pix_data to get the color values of
> pixels in an image under the mouse. gemmouse and pix_data use different
> co-ordinates? Is there a simple way to do this. It would be simpler if
> pix_draw put the image I was looking at into the bottom left of the gem
> window but it doesn't also because translateXYZ uses a different scale
> again from pix_data and gemmouse that complicates the matter. Anyway I'm
> sure there is a simple way to get the color values under the cursor. Any
> hints?
> Thanks,
> Jim
>
>
>
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