ITTVIS Support | Frequently Asked Questions

Product Frequently Asked Questions

Below are links to answers for the most common product related questions we receive. If you don’t find your answer here, we suggest you look through our tech tips.

Reporting problems to ITT Technical Support

Analysis:

Multi-threading FAQ
Removing Image Noise with FFT

ENVI:

What are the tile and cache size settings in the ENVI configuration file?
How to run ENVI in Batch Mode
How to add a user function to ENVI

File Formats:

MPEG support in IDL
GIF & LZW support in IDL
Encapsulated postscript (*.eps) files, previews, and Microsoft Word

Language:

Tips & tricks for efficient IDL programming
Introduction to objects

Licensing:

Installing the latest HASP driver
Configuring the FLEXlm license manager on Windows
Configuring the FLEXlm license manager on UNIX and Mac OS X
Explanation of how FLEXlm licenses work
What's the difference between a node-locked, float, etc. license?

Memory Management:

How does IDL manage memory?
How does IDL release Virtual Memory?
Overcoming Windows memory allocaiton limits

Printing:

Printing from ENVI and/or using IDL's DIALOG_PRINTERSETUP on UNIX
Quick one-step Direct Graphics printing

System:

Platform Support FAQ
Byte ordering schemes used by IDL platforms

Visual:

Loading a color table doesn't appear to work
Using UNICODE characters on Windows systems
OpenGL direct hardware rendering on Linux

Widgets:

Widget program for converting from geographic lat/lon to meters & vice-versa
When are non-blocking widgets useful?