| Coyote Graphics Plot Gallery Now Open [message #82922] |
Wed, 23 January 2013 22:07 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Folks,
Wayne Landsman reminded us the other day of the AstroPlotLib, with
examples of plots astronomers create, along with the code and data to
create them, etc. I made a snarky comment about the Coyote Graphics code
being used in the examples was of the circa 2005 variety, but it turned
out it was even worse than that. The curator of that web page was
actually using examples out of my book!
(Not that any more evidence is needed that books are pretty much out of
date the day they are published, but it is shocking, nonetheless, to
discover this truth in your own book.)
The point is, things have moved on in the two years since the book first
came out, and I've had to adapt and invent ever more devious strategies
to move reluctant and conservative programmers into the 21st century.
I have thought of creating a Coyote Graphics plot gallery before, but
there is nothing like embarrassing code to move a guy off the dime and
into action. So, I am announcing today a new section of my web page
devoted to showing exactly how I create various types of plots with
Coyote Graphics commands. You can find it here:
http://www.idlcoyote.com/gallery/
You will ABSOULTELY need to update your Coyote Library to run the code
examples you will find to download there.
http://www.idlcoyote.com/programs/zip_files/coyoteprograms.z ip
Or, here:
http://idl-coyote.googlecode.com/
There is no guarantee this page won't get as out-of-date as a book, but
you can be sure that as of today, it's pretty nearly up to date. :-)
The page is not finished, but I wanted to start it with a pretty good
sample of the things you can do with Coyote Graphics. I'll add more
examples as time permits.
I have made one concession to pedogogy. I make PNG files by setting the
PNG keyword on PS_END. In the code examples, I use cgPS2Raster. I do
this for the one or two people who still haven't gotten the word that
you MUST install GhostScript and ImageMagick if you want superior
graphics output with direct graphics commands. They can just comment
this command out and carry on in their own sorry fashion. ;-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")
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