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Hi Evan,
Goal: Generate a 960x720 satellite image centered over the U.S. which exactly matches an existing 960x720 image of the US. This image needs to be automatically generated every ~15 minutes as new satellite data comes in.
Just curious why the hand editing of the projection file? I know our projection editor needs work. What could we do in the IDV to make this process easier? Enable the exact setting of the bounding box values? Any ideas?STEP1: Create custom Projection named "custom_us" Type: Stereographic, False Easting: 0, False Northing: 0, Scale: 1, Tangent lat: 90.0, Tangent lon: -96.0STEP2: Move the bounding box of the projection by editing ".undata/idv/DefaultIdv/projections.xml" <after hours of trial and error>
Also - is there anything we could add to the ISL to have made this process easier?
For example, we just added last week a viewpoint tag: http://www.unidata.ucar.edu/software/idv/release/nightly/docs/userguide/isl/DataAndDisplays.html#viewpoint that allows for scripted positioning of the viewpoint. We also have a center tag: http://www.unidata.ucar.edu/software/idv/release/nightly/docs/userguide/isl/DataAndDisplays.html#center that allows for positioning. We can also do clipping of the image: http://www.unidata.ucar.edu/software/idv/release/nightly/docs/userguide/isl/ImagesAndMovies.html#clip [...]
STEP11: Run isl script to generate gif image. Result: creates an image NOT 960 x 720 pixels, instead it creates an image which is the size of the display panel (1164 x 1002 pixels) and is clearly distorted from the view I need.
When you run isl in onscreen mode the view size is whatever size the gui layout of the window ends up with. What you should do is set offscreen=true and you can set the size of the view in the bundle tag with the width/height attributes:
http://www.unidata.ucar.edu/software/idv/docs/userguide/isl/DataAndDisplays.html -Jeff
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