HELP ARTICLES

Help Articles are product support tips and information straight from the Exelis VIS Technical Support team developed to help you use our products to their fullest potential.

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Example how to write large data to an HDF5 file piece by piece

Example how to write large data to an HDF5 file piece by piece

11/21/2014

Topic: This article shows an example of how to write a large set of data to an HDF5 file by breaking it down into smaller pieces and writing it to the file piece by piece.  Discussion: The program "test_write_h5d" (shown below) generates a set of data that is random is size*. It then creates a HDF5 file and opens it. The data is then ... more »

XQuartz/X11 failing to launch automatically when running ENVI or IDL

XQuartz/X11 failing to launch automatically when running ENVI or IDL

10/23/2014

PROBLEM: Some IDL and ENVI users on Mac OS X (10.7 or later) have reported that X11 fails to launch automatically when IDL or ENVI is started by double clicking on the application launch icon. Possible causes for this problem may be: 1.) X11/XQuartz configuration is not complete 2.) Corrupted X11/XQuartz ... more »

Using IDL and ENVI on Mac OS X Requires X11/XQuartz

Using IDL and ENVI on Mac OS X Requires X11/XQuartz

10/17/2014

PROBLEM: Running IDL and ENVI on Mac OS X requires the installation of X11/XQuartz on the system. X11/XQuartz does not come pre-installed on Mac OS X and requires a separate download and installation of this product. Here are some example symptoms of using IDL on a Mac OS X system without X11/XQuartz: * The IDL Workbench can be started but ... more »

IDL 8.4 Release Notes

IDL 8.4 Release Notes

9/22/2014

Supported Platforms Platform Hardware Operating System Supported Versions Windows Intel/AMD 32-bit XP SP2, Vista, 7, 8 Intel/AMD 64-bit XP, ... more »

Techniques for improving IDL code

Techniques for improving IDL code

9/5/2014

Topic This article describes techniques that can be used to improve the performance of IDL programs. (NOTE: Most of the text in this article was taken from Mark Piper's "Scientific Programming with IDL" manual) Discussion Some techniques to improve the speed and memory usage of IDL programs is shown below: 1) Vectorization Vectorization is ... more »

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Exelis VIS Technical Support Policy Updates

9/25/2014

Maintenance Program Changes and Reminders: All customers must be current on maintenance to receive ... more »

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