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[McIDAS #VSG-323612]: Navigation error when plotting image beyond a certain dimension



Hi Kwan,

re:
> Yes, I first made a 6400x4800 GIF file for the 1-km US radar image.  Then I
> plotted the same radar image using MAG=-2 but with half of the original
> dimension (i.e. 3200x2400).  Then I overlaid the surface data onto this
> half size image, and set EU MAKE 0 255 BLACK and save this as a GIF file
> (so only surface data are now shown).  I then make the black background of
> the GIF file transparent using ImageMagick and overlaid this onto the
> 6400x4800 GIF file to get the final product.  But I found the plotted data
> are a bit too dense.

OK, I understand what you are trying to do.  Unfortunately, I know of no
remedy for your problem except to either blow down the image (like you
noted you did); plot surface data over the blown down image; and then
save the result as a GIF.

Cheers,

Tom
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Ticket Details
===================
Ticket ID: VSG-323612
Department: Support McIDAS
Priority: Normal
Status: Closed
===================
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