VectorPlot example 4
This VectorPlot example can be created using HLU function calls or
NCL. It demonstrates how to rotate a VectorPlot 90 degrees while
preserving the original relationship of the data elements. The names
of the source files for this example are vc04c.c, vc04f.f, and
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 vc04.res. This
file is used to change the default resource settings for the
plot. Some of the VectorPlot line resources are tweaked in the
resource file to show how to change the appearance of the vectors.
A detailed discussion of how this example works appears in its
The HLU C program that generates this plot is called vc04c.c.
The HLU FORTRAN program that generates this plot is called vc04f.f.
The NCL script that generates this plot is
The data for this plot are from an ASCII file called "uvdata0.asc".
The data file is located in your NCAR Graphics data directory in a
subdirectory called "asc". You can get the name of the data directory
by typing "ncargpath data" at your shell prompt.
This example can be created using a C program (vc04c.c), a FORTRAN
program (vc04f.f), or an NCL script (vc04n.ncl). The example is
installed in the following locations:
The resource file for this example is located in:
The ASCII data file is installed in the following location:
You can copy this example and run it by typing "ng4ex vc04c", "ng4ex
vc04f", or "ng4ex vc04n". 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.
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$Revision: 1.7 $ $Date: 1999/03/23 21:07:08 $