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[ANN] Online Surface Plotting Tutorial
| [ANN] Online Surface Plotting Tutorial [message #8684] |
Tue, 08 April 1997 00:00 |
Struan Gray
Messages: 178
Registered: December 1995
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Senior Member |
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A few weeks ago I posted a half-hearted pointer to a tutorial I
have written on how to extend IDL's built-in surface plotting
routines. Now that enough time and beta-testers have passed by for me
to be reasonably sure that the HTML and IDL code won't crash your
machines here's a (slightly) more evangelistic announcement.
IDL SURFACE PLOTTING TUTORIAL
http://www.sljus.lu.se/stm/IDL/Surf_Tips/
IDL's built-in surface plotting routines are fast, adaptable and
powerful but suffer from a few problems, particularly when attempting
to combine different sorts of plot or displaying two or more surfaces
simultaneously. The tutorial shows ways of getting round some
annoying bugs and, more importantly, using the built-in routines as
building blocks to construct more complex plots. Topics covered
include:
1) Surface plots that are both coloured and shaded
2) Reliable plotting of surface grids in the Z-buffer
3) Shading and colouring surface grids
4) Plotting two intersecting surfaces
5) Hidden surface removal for grids on two surfaces
6) A simple way to plot transparent surfaces
There are code snippets embedded in the tutorial pages which can
be pasted into the command line of IDL, producing example plots while
you read. There is also an example code page where you can download
fully-functional, commented routines which you can use to produce
plots from your own data using a single command.
I would appreciate any comments and bug reports people might have,
so please email any bouquets or brickbats to: struan.gray@sljus.lu.se
Struan
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