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NV5 Geospatial Blog

Each month, NV5 Geospatial posts new blog content across a variety of categories. Browse our latest posts below to learn about important geospatial information or use the search bar to find a specific topic or author. Stay informed of the latest blog posts, events, and technologies by joining our email list!



Not All Supernovae Are Created Equal: Rethinking the Universe’s Measuring Tools

Not All Supernovae Are Created Equal: Rethinking the Universe’s Measuring Tools

6/3/2025

Rethinking the Reliability of Type 1a Supernovae   How do astronomers measure the universe? It all starts with distance. From gauging the size of a galaxy to calculating how fast the universe is expanding, measuring cosmic distances is essential to understanding everything in the sky. For nearby stars, astronomers use... Read More >

Using LLMs To Research Remote Sensing Software: Helpful, but Incomplete

Using LLMs To Research Remote Sensing Software: Helpful, but Incomplete

5/26/2025

Whether you’re new to remote sensing or a seasoned expert, there is no doubt that large language models (LLMs) like OpenAI’s ChatGPT or Google’s Gemini can be incredibly useful in many aspects of research. From exploring the electromagnetic spectrum to creating object detection models using the latest deep learning... Read More >

From Image to Insight: How GEOINT Automation Is Changing the Speed of Decision-Making

From Image to Insight: How GEOINT Automation Is Changing the Speed of Decision-Making

4/28/2025

When every second counts, the ability to process geospatial data rapidly and accurately isn’t just helpful, it’s critical. Geospatial Intelligence (GEOINT) has always played a pivotal role in defense, security, and disaster response. But in high-tempo operations, traditional workflows are no longer fast enough. Analysts are... Read More >

Thermal Infrared Echoes: Illuminating the Last Gasp of a Dying Star

Thermal Infrared Echoes: Illuminating the Last Gasp of a Dying Star

4/24/2025

This blog was written by Eli Dwek, Emeritus, NASA Goddard Space Flight Center, Greenbelt, MD and Research Fellow, Center for Astrophysics, Harvard & Smithsonian, Cambridge, MA. It is the fifth blog in a series showcasing our IDL® Fellows program which supports passionate retired IDL users who may need support to continue their work... Read More >

A New Era of Hyperspectral Imaging with ENVI® and Wyvern’s Open Data Program

A New Era of Hyperspectral Imaging with ENVI® and Wyvern’s Open Data Program

2/25/2025

This blog was written in collaboration with Adam O’Connor from Wyvern.   As hyperspectral imaging (HSI) continues to grow in importance, access to high-quality satellite data is key to unlocking new insights in environmental monitoring, agriculture, forestry, mining, security, energy infrastructure management, and more.... Read More >

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The command line and the Workbench

Anonym

There are two primary ways of using IDL: the command line (CLI) and the Workbench (WB). The CLI allows direct access to the IDL interpreter. The WB is a separate program that sits on top of IDL and provides a slew of organizing, editing and debugging tools for working with IDL.

I <3 XKCD

What are the pros and cons of these two ways of using IDL? Here's how I see it.

CLI Pros:

  1. Lightweight.
  2. Fast. The CLI provides direct access to the IDL interpreter.

Cons:

  1. Limited shell-like support; e.g., no color syntaxing, command completion or keybinding definition. (However, see rIDL.)
  2. An external editor is needed to develop and debug code. (For many, this may not be a negative.)

WB Pros:

  1. Integrated editor with command completion, color syntaxing, code formatting and code templates.
  2. Projects for organizing files and controlling IDL’s path.
  3. A consistent interface across platforms supported by IDL (Windows, Mac OS X, Linux).

Cons:

  1. The WB is built on Eclipse, which is a big, complex Java application. As the size and complexity of an application grows, the likelihood of bugs grows, as well.

It’s part of my job to use the WB, so I’m clearly biased, but there are several features that I miss when I go back to Emacs + the CLI, among them:

  • projects for file operations and path management,
  • the Outline view for jumping between programs in a file, and
  • the Open Resource dialog for opening files.

I’d like to demonstrate these in a set of subsequent posts, as well as other WB features that I find useful. How do you prefer to use IDL?

 
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