TextItem example 3

How to set the text background fill color

This example can be created using HLU C library calls, HLU FORTRAN library calls, or NCL. It demonstrates how to set the background fill color of a text item. The names of the source files for this example are tx03c.c, tx03f.f, and tx03n.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 tx03.res. This file shows how to set the value of the text string, the text color, font, position, etc.

This example contains multiple frames. In each frame, the text string's background color is changed by setting a color resource in the source code and then redrawing the TextItem object.

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 tx03c.c.

Creating the plot using HLU FORTRAN library calls

The HLU FORTRAN program that generates this plot is called tx03f.f.

Creating the plot using NCL

The NCL script that generates this plot is called tx03n.ncl.

The data

This plot does not use any external data.

How to run this example

You can produce this example by using a C program (tx03c.c), a FORTRAN program (tx03f.f), or an NCL script (tx03n.ncl). The examples are installed in the following locations:

You can copy this example and run it by typing "ng4ex tx03c", "ng4ex tx03f", or "ng4ex tx03n". 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: 1.8 $ $Date: 1999/03/23 19:42:03 $