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20050105: IDV Coordinate System

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  • Subject: 20050105: IDV Coordinate System
  • Date: Wed, 05 Jan 2005 13:57:50 -0700
>From: address@hidden
>Organization: Oklahoma University
>Keywords: 200501051945.j05Jjcv2026825  IDV grid

Hi Ben-

>   I am a masters student at OU and will be using an in-house model to perform
>  my research.  My advisors would like to use the IDV software to display  the
>  data.  The model data will have a much smaller horizontal length scale than 
> the standard data used by IDV and I wanted to know if there is a way to allow
>  IDV to plot data in a standard Cartesian coordinate (x, y, height) system as
>  opposed to the lat, lon, height system.  I will be using netCDF files to rea
> d the data so any documentation or samples to use as guides would be much app
> reciated.

At this point in time, the IDV needs to have the data referenced to
lat/lon/height.   It does not support generically referenced grids for
the main display.  You could read it in as a VisAD form file for the
Data Source Type and then display it in the Omni Control, but then you
lose most of the slicing/dicing/probing capabilities of the IDV.

Alternatively, if you could put it out in Vis5D format and use the
generic coordinate system, you could read it in and display in
the main window.  It will position it over the equator/prime meridian,
but if you just turn off the map, it will look fairly generic.  
Someone is doing this with brain images.

Supporting generic grids is on our TODO list, but it is not
at the top of the priority list at this time.

Don Murray
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