[Shake-dev] ShakeMap 3.2 overlay question

[Kuowan Lin]

Pete,

Yes, it is normal.  The checkerboard background is the effect of 
transparency bit with the ii_overlay.png file for some graphic 
utilities.  The additional pscoast call is to mask out water body for 
the transparency layer.


Wan
--
NEIC

Peter Lombard wrote:
> ShakeMappers:
>
> I'm trying out version 3.2 (finally!) and I noticed something different about
> the ii_overlay.png file. For areas over water (ocean or large lakes), the
> image shows a checkerboard background instead of the mostly white it shows
> with earlier versions of ShakeMap. See the attachment.
>
> The release notes mention some changes to the code that produces this
> file. And I can see that mapping does an additional call to pscoast that was
> not present in earlier versions.
>
> Does this seem correct? I don't have access to google-earth, so I don't have
> any way of testing the overlay other than looking at the image by itself.
>
> Pete
>
>
>   
>
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