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.

How to programmatically access the transformation matricies of the ICA .trans file

6/19/2015

The Independent Components (IC) analysis is used to transform a set of mixed, random signals into components that are mutually independent for multispectral or hyperspectral datasets.  The ICA transform produces a transformation matrix of the forward and backward transformation coefficients that are stored in a '.trans' ... more »

How to access the items stored in the ENVI metadata object of an ENVIRaster

6/17/2015

The below example shows how you can access and save the items in the ENVI metadata object of an ENVIRaster.  This can be useful if you need to save these items for other processes.  Example commands: ;open a raster ENVI>raster = 'C:\Program Files\Exelis\ENVI52\data\qb_boulder_msi' ENVI>in_raster= ... more »

How to extract and apply LAS classification RGB values to a point cloud using the programming interface (API)

6/11/2015

The following example code show how to access the classification values in a LAS file and create a new project file that will display the point cloud by the classification RGB values.  This example uses the default Computed Classification Values described in the ENVI Lidar help.  The values may vary depending on the LAS file ... more »

How to access the classification information in a LAS Lidar file using the programming interface (API)

6/9/2015

 ENVI Lidar can be used to read and view Lidar point clouds from LAS files.  It can sometimes be useful to get information from the file without importing it to ENVI Lidar.  The below code example shows how you can read the classification values held in a LAS file.  ;-------------------------------- PRO ... more »

How to start an IDL Command Line session from an already open terminal window on Mac OS X?

5/19/2015

QUESTION: How to start an IDL Command Line session from an already open terminal window (as opposed to double clicking on the "IDLCommandLine" icon provided with the IDL installation) on Mac OS X? ANSWER: A) Instructions to manually set up a (Apple or XQuartz/X11) terminal window session to run an IDL Command Line session.   1) ... 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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