PGPlot
PGplot is a portable high level graphics package,
written for the display of
astronomical data, but useful for any scientific discipline.
Full information can be found on the web site
PGPlot (version 5.2.0);
The RISC OS version for use with the AcornSoft compiler is available
from here (size 413K)
The RISC OS version for use with the GNU compiler is available from
here.
PGPLOT example programs
The PGPLOT example programs are provided with the package to demonstrate how
to use each of the routines in the library. Most of these generate hardcopy
for typical scientific presentations; images have been made in advance for
the examples which do not use PGPLOT interactively. To see the
interactive examples you will have to run the examples themselves.
Most of the images were made using only 16 colours
- Demo 1 shows many ways of presenting graphs, histograms and simple
figures. Plot (86K),
- Demo 2 shows the basic elements that PGPLOT uses to make plots.
Plot (31K),
- Demo 3 shows contour plots.
Plot (76K),
- Demo 4 shows imaging.
Plot (25K),
- Demo 5 is interactive; it allows the user to draw polygons on the
screen.
- Demo 6 is interactive; it shows how to use the available cursors in
an interactive program.
- Demo 7 shows a 3D plotting surface (Mexican Hat).
Plot (5K),
- Demo 8 shows how to use the PGPLOT routines for a 3D surface.
Plot (15K),
- Demo 9 shows more imaging techniques.
Plot (14K),
- Demo 10 shows how colours may be changed.
Plot (5K),
- Demo 11 is interactive; it shows animation.
- Demo 12 is interactive; it shows how to change the size of the
viewing surface.
- Demo 13 is interactive; it shows how PGPLOT may be used with
multiple display devices (VDU and hardcopy at the same time).
- Demo 14 is interactive; it shows how to change the characteristics
of a figure interactively.
- Demo 15 shows a plot of a vector field.
Plot (4K),
- Demo 16 shows bar charts.
Plot (17K),
- Demo 17 is interactive; it is supposed to show an animation of a
rotating dodecahedron but relies on the CPU and display to
be very fast. It is not well suited to (slow) ARM based
computers.
Page last updated 22 Feb 2004
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