NCL > Application examples > Basic examples
ContourPlot example 1
Drawing a contour plot using default settings
This example demonstrates how to use HLUs or NCL to create a contour plot with all resources (except data) set to their default values. The names of the example codes that create this plot are cn01c.c, cn01f.f, and cn01n.ncl.
Discussion
Resources are controlled through a resource file called cn01.res, but at the moment there are no resources in this file.A detailed discussion about how to create the plot appears in the comments of the source code for the example.
Creating the plot using HLU C library calls
The HLU C program that generates this plot is called cn01c.c.
Creating the plot using HLU FORTRAN library calls
The HLU FORTRAN program that generates this plot is called cn01f.f.
Creating the plot using NCL
The NCL script that generates this plot is called cn01n.ncl.
The data
The data for this plot is created in the example's source code.
How to run this example
The examples are installed in the following locations:
- $NCARG_ROOT/lib/ncarg/hluex/contourplot/cn01c.c
- $NCARG_ROOT/lib/ncarg/hluex/contourplot/cn01f.f
- $NCARG_ROOT/lib/ncarg/nclex/contourplot/cn01n.ncl
- $NCARG_ROOT/lib/ncarg/resfiles/contourplot/cn01.res