printim with transparent background

[Bernd Becker]

On the note of changing printim:

printim allows to set the background colour to either white or black.

Could one create a png (or other ) file with a transparent backgound?

That would be rather nice for future use in google earth.

Thanks!
Bernd.


On Tue, 2009-02-24 at 12:57 -0500, Jennifer Adams wrote:
> On Feb 24, 2009, at 12:25 PM, Arlindo da Silva wrote:
> >
> > Would it make sense to add a convenience -kml option to printim?
>
> No. The printim code doesn't know anything about the grid structure or
> the dimension environment -- it only knows about what's in the
> graphics metafile. The geolocaiton information is not available at
> that point.
>
> This technique of substituting the .tif image file created with 'gxout
> kml' with another image created with printim is a hack -- an
> unofficial alternative if you want something besides a pixelated image
> of your data values.
>
> By the way, I have noticed that Google Earth's smoothing algorithm can
> make the GrADS images look really awful -- anyone know how to turn off
> that feature?
>
> Jennifer
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Bernd Becker   The Monthly Outlook
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