NCL > Application examples > Basic examples
ContourPlot example 2
Basic features of a ContourPlot object
This example demonstrates how to create the plot using HLU C, HLU FORTRAN library calls, or NCL. The example shows many of the most-used features such as selecting the contour fill type, setting line patterns, and controlling labels. The names of the example codes that create this plot are cn02c.c, cn02f.f, and cn02n.ncl.
Discussion
Some of the resources are controlled through a resource file called cn02.res.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 cn02c.c.
Creating the plot using HLU FORTRAN library calls
The HLU FORTRAN program that generates this plot is called cn02f.f.
Creating the plot using NCL
The NCL script that generates this plot is called cn02n.ncl.
The data
The data for this plot is generated by the example's source code.
How to run this example
This example can be created using a C program (cn02c.c), a FORTRAN program (cn02f.f), or an NCL script (cn02n.ncl). The examples are installed in the following locations:
- $NCARG_ROOT/lib/ncarg/hluex/contourplot/cn02c.c
- $NCARG_ROOT/lib/ncarg/hluex/contourplot/cn02f.f
- $NCARG_ROOT/lib/ncarg/nclex/contourplot/cn02n.ncl
- $NCARG_ROOT/lib/ncarg/resfiles/contourplot/cn02.res