FAQ | Frequently Asked Questions

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Q: How do I install ENVI/IDL?
A: Follow these steps to install ENVI/IDL on your computer. You will also need the following item (obtained from Paul or Kengshi):

This page includes instructions for both Mac OS X and Windows (under development).

Prerequisite: Install X11 (XQuartz) on Mac OS X:

X11 is a prerequisite for running ENVI/IDL or MATLAB. Apple no longer ships X11 as a component of Mac OS X. The XQuartz project is an open-source effort to develop a version of the ​X.org X Window System that runs on OS X. Download and install the latest version of XQuartz from https://xquartz.macosforge.org/landing/

Once XQuartz is downloaded and installed, and you have logged out and back in, to make XQuartz your default, you may proceed with the installation of ENVI/IDL.

To install the ENVI/IDL client on Mac OS X:

  1. Start the installer:   package-icon Install_IDL83ENVI51.pkg

  2. Continue through the welcome screen

  3. Agree to the Software License Agreement

  4. If given a destination option, select Install for all users of this computer

  5. Select the Installation type

  6. Install in the standard location

  7. The Installer will request an administrator's name and password

  8. The Installer should now finish to completion

  9. After the Installer finishes, the LicenseWizard will launch. Select Install a license you have received

  10. Browse to the location where you saved the license file

  11. Select the license file

  12. Finish the license installation

  13. The Excelis applications can be found in the Applications folder in a folder named excelis

To install the ENVI 5.1 Hotfix 1 on Mac

Instructions can be found here: envi-hotfix-installation-instructions.html

And the ENVI 5.1 Hotfix 1 can be found here: Mac_envi51idl83_r2.tar.gz

To install the ENVI/IDL client on Windows:

The ENVI Software Download and Installation Instructions say basically:

  1. Go to the location where you saved the executable file and double-click it.
  2. Click Yes, and follow the prompts.

Here are step-by-step instructions:

  1. Log in to an Administrator account on the PC

  2. Drag the files IDL83ENVI51_win64.exe, HotFix-envi51idl83r7.exe, and envi-network-client-license.dat to the Desktop

  3. Double click IDL83ENVI51_win64.exe to launch the installer

  4. Allow the installation, click Yes

  5. Admin account, continue? Click Yes

  6. Installer, click Next

  7. Accept the license, click Next

  8. Choose the default destination, click Next

  9. Select products, click Next

  10. Select the shortcuts you want to appear in the Start menu, click Next

  11. Installing…

  12. To run the License Wizard, click Yes

  13. Select Install a license you have recieved, click Next

  14. Select Browse to import license file… and open the license file you dragged in step 2

  15. Your product has been licensed, click Finish

  16. Installation completed, click Finish

  17. Launch both ENVI and IDL to make sure they work. When you launch IDL it may display a window asking to allow idlldl to communicate with public networks. (I don't know why.)

  18. Double click HotFix-envi51idl83r7.exe to run the Hot Fix installer. Follow the prompts.

  19. Once the installations are complete you may move the files IDL83ENVI51_win64.exe, HotFix-envi51idl83r7.exe, and envi-network-client-license.dat to the trash.