XyPlot example 6

Using multiple lines, external data, and legends

This example can be created using HLU C library calls, HLU FORTRAN library calls, or NCL. This is an advanced example that demonstrates how to create a plot that contains multiple lines on multiple plots with a legend. This example also demonstrates how to read data from an external file. The names of the source files for this example are xy06c.c, xy06f.f, and xy06n.ncl.

Discussion

This module discusses how to create this plot using HLU function calls and NCL. A resource file is included with this example, and it is called xy06.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 code.

Creating the plot using HLUs

The HLU C program that generates this plot is called xy06c.c.

Creating the plot using HLU FORTRAN library calls

The HLU FORTRAN program that generates this plot is called xy06f.f.

Creating the plot using NCL

The NCL script that generates this plot is called xy06n.ncl.

The data

The data for this plot was read from external netCDF files.

How to run this example

You can produce this example by using a C program (xy06c.c), a FORTRAN program (xy06f.f), or an NCL script (xy06n.ncl). The examples are installed in the following locations:

You can copy this example and run it by typing "ng4ex xy06c", "ng4ex xy06f", or "ng4ex xy06n". A copy of the source file and resource file will be placed in your current working directory. The source code will be compiled and automatically run for you.

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$Revision: 1.4 $ $Date: 1995/07/26 23:26:05 $