NCL > Application examples > Basic examples
VectorPlot example 5
How to overlay a VectorPlot on a MapPlot
This example can be created using HLU function or NCL. It demonstrates how to overlay a VectorPlot on a MapPlot. The names of the source files for this example are vc05c.c, vc05f.f, and vc05n.ncl.
Discussion
This module discusses how to create this plot using HLU function calls or NCL. A resource file is included with this example, and it is called vc05.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 vc05c.c.
Creating the plot using HLU FORTRAN library calls
The HLU Fortran program that generates this plot is called vc05f.f.
Creating the plot using NCL
The NCL script that generates this plot is called vc05n.ncl.
The data
The data for this plot are created by calls within the HLU program or NCL script.
How to run this example
This example can be created using a C program (vc05c.c), a Fortran program (vc05f.f), or an NCL script (vc05n.ncl). The examples are installed in the following locations:
- $NCARG_ROOT/lib/ncarg/hluex/vectorplot/vc05c.c
- $NCARG_ROOT/lib/ncarg/hluex/vectorplot/vc05f.f
- $NCARG_ROOT/lib/ncarg/nclex/vectorplot/vc05n.ncl
- $NCARG_ROOT/lib/ncarg/resfiles/vectorplot/vc05.res