VectorPlot example 9
This example can be created using HLU function calls or NCL. It plots
wind vectors colored by temperature over a pressure field contour
plot. The names of the source files for this example are vc09c.c,
vc09f.f, and vc09n.ncl.
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This module discusses how to create this plot using NCL or HLU C or
FORTRAN calls. A resource file is included with this example, and it
is called vc09.res. This
file is used to change the default resource settings for the plot.
A detailed discussion of how this example works appears in its source
The HLU C program that generates this plot is called vc09c.c.
The HLU FORTRAN program that generates this plot is called vc09f.f.
The NCL script that generates this plot is
The data for this plot is from several netCDF files called
Ustorm.cdf, Vstorm.cdf, Pstorm.cdf, and Tstorm.cdf.
The data files are located in your NCAR Graphics data directory in a
subdirectory called "cdf". You can get the name of the data directory
by typing "ncargpath data" at your shell prompt. If you have netCDF
installed on your system, then you can change directory to where the
netCDF files reside and type "ncdump -h file.cdf" to view the
header information for this data file.
This example can be created using a C program (vc09c.c), a FORTRAN
program (vc09f.f), or an NCL script (vc09n.ncl). The example is
installed in the following locations:
The netCDF data files are installed in the following directory:
You can copy this example and run it by typing "ng4ex vc09c", "ng4ex
vc09f", or "ng4ex vc09n". A copy of the source file and resource file
will be placed in your current working directory. The source code will
be automatically compiled, linked, and run for you. You must have the
library installed on your system in order to compile the C or FORTRAN
version of this example.
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$Revision: 1.4 $ $Date: 1999/03/23 21:07:13 $