Monthly Archives: January 2012

A snow water equivalent map for Colorado

Posted on January 26, 2012 by

Andrew Slater, a research scientist at the National Snow and Ice Data Center in Boulder, has a website that maps daily changes in snow water equivalent over Colorado, using a shell script for data retrieval and IDL for visualization. Dr. Slater … Continue reading →

Posted in visualization | Tagged , , , , , | 3 Comments

Making movies with IDL, part II

Posted on January 19, 2012 by

Last week, I gave an example of making a movie with IDLffVideoWrite and DG. This week, I’ll use NG to make a similar movie. The example is again written as a procedure. Start the program by declaring some test data … Continue reading →

Posted in language, output, programming, visualization | Tagged , , , , , , , | 4 Comments

Making movies with IDL, part I

Posted on January 12, 2012 by

Over the years there have been many ways to make movies with IDL, but none of them have been great. I think we now have a robust solution: the IDLffVideoWrite class, introduced in IDL 8.1, wraps FFmpeg, which can create … Continue reading →

Posted in language, output, programming, visualization | Tagged , , , , , , , | 4 Comments

A technique for flexible Get/SetProperty methods in IDL 8

Posted on January 5, 2012 by

(Note: This is a guest post by Ron Kneusel, a Senior Consultant in the Exelis VIS Professional Services Group. I frequently bug Ron with questions about computer science, IDL and Linux. –MP) IDL’s new hash table object, along with some … Continue reading →

Posted in language, programming | Tagged , , , , , | 2 Comments