Re: [idvusers] Plot isosurface with ascii file (fwd)

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Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
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---------- Forwarded message ----------
Date: Tue, 17 Feb 2009 10:24:28 -0700
From: Stuart Wier <address@hidden>
To: Sung-Joon Chang <address@hidden>
Subject: Re: [idvusers] Plot isosurface with ascii file

Sung-Joon,

> Dear all,
>
> I'm a neophyte who wants to use IDV to plot velocity isosurface in the mantle 
> with tomographic results.
> I have ascii data with columns of lat, lon, depth and velocity.
> However, I couln't find information about how to convert ascii data to grid 
> data (*.nc) to plot isosurface in userguide.
> There is only practice to plot isosurface with preexisted grid data.
>
> I'd appreciate it if you'd let me know how to plot isosurface with this kind 
> of ascii data.
> Thank you in advance.

One way is to use "UNAVCO's Interactive ASCII to NetCDF Data File Format 
Converter for 2D and 3D Gridded Data"
see http://geon.unavco.org/unavco/Converter/

See also the web page "Using the NetCDF Data Format for Seismic Tomography"
http://geon.unavco.org/unavco/IDV_seismic_tomo_data.html,

and the general material "NetCDF Data for the GEON IDV"
http://geon.unavco.org/unavco/IDV_for_GEON_netcdf.html

You probably know about "Using the GEON IDV to Explore Seismic Tomography"
http://geon.unavco.org/unavco/IDV_datasource_tomo.html

Stuart Wier

UNAVCO

> ==============================
>   Sung-Joon Chang
>  Postdoctoral Fellow
> Dept. of Earth and Planetary Sciences
> Northwestern University
> 1850 Campus Drive
> Evanston, IL 60208-2150
> U.S.A.
> ==============================
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