NCARG
The NCAR Graphics Library

NCARG is a directory of FORTRAN77 programs which illustrate the use of the NCAR Graphics Library which contains an extensive set of graphics routines for the presentation of scientific data.

Setup for C shell or T shell:: setenv NCARG_ROOT /usr/local/ncarg set path = ( $path /usr/local/ncarg/bin )
To see a list of All the available examples:: ncargex -A -list
To see a list of ezmap examples:: ncargex -ezmap -list
To copy and run a specific example, say mpex01:: ncargex mpex01

The output of an NCARG graphics program is to an abstract "device". The actual properties of this device are specified by the user in the statement:

call gopwk ( iwkid, lunit, iwtype )

For our purposes here, the interesting quantity is iwtype, whose value determines the exact form of the output. In particular,

1: NCGM, an NCAR CGM file, called "gmeta" by default.
3: WISS, "Workspace Independent Segment Storage"
7: Display graphics in the current X window;
8: Display graphics in a new X window.
10: Text dump of graphics for debugging
20: Color PS File, Portrait
21: Color EPS File, Portrait
22: Color EPSI File, Portrait
23: B/W PS File, Portrait
24: B/W EPS File, Portrait
25: B/W EPSI File, Portrait
26: Color PS File, Landscape
27: Color EPS File, Landscape
28: Color EPSI File, Landscape
29: Color PS File, Landscape
30: Color EPS File, Landscape
31: Color EPSI File, Landscape

Note that EPS and EPSI files are only appropriate for single images. If you try to write several images to a device that you defined as an EPS or EPSI file, you will get an "interesting" error message.

Reference:

Web site:: http://ngwww.ucar.edu
PDF Documentation:: ../../pdf/ncarg/ncarg_pdf.html

Examples and Tests:

FSTREAM is a test of the NCARG routine STREAM, which can plot streamlines of a vector quantity. Test files you may copy include:

fstream.f, test program for STREAM.
fstream.csh, commands to compile, link and run the calling program;
fstream.out, the sample output.
fstream.png, a PNG image of the streamlines.

TISOSR is a test of the NCARG routines EZISOS and ISOSRF. Two images are created. Test files you may copy include:

tisosr.f, the test program.
tisosr.csh, commands to compile, link and run the calling program;
tisosr.out, the sample output.
tisosr0.png, a PNG image of the first isosurface plot.
tisosr1.png, a PNG image of the second isosurface plot.

You can go up one level to the FORTRAN77 source codes.

Last revised on 25 September 2005.

NCARG The NCAR Graphics Library

Reference:

Examples and Tests:

NCARG
The NCAR Graphics Library