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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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Sending email from IDL

Anonym
(Note: This is a guest post from Eduardo Iturrate, who is not only a director of sales at Exelis VIS, but he’s also an IDL master: he created RevolutionIDL, the Source Code Generator for Beginners, Katalog, the ENVI Program Generator and the ENVI5 – Google Maps Link. Thanks, E! –MP) The following technique uses IDL, PHP and a regular web server to send emails initiated by an IDL program. This can be useful in situations where you want IDL to notify you that it’s finished a long process. This code uses the imaginary “webserver.com” server name. You will have to change that to your own server name, both in the IDL and PHP code. Use a text editor to create the following file, named idlsendmail.php. Remember to change “idl@webserver.com” to an address that includes your domain name.
Upload this idlsendmail.php file to your web server. Put it in your main web directory – if you move it to a particular subdirectory, make sure to point to it in the call from IDL. At this point, all we need to do from IDL is:
IDL> oUrl = obj_new('IDLnetUrl')
IDL> to = 'example@example.com'  ;Use your own email address here
IDL> ok = oUrl->Get(URL='http://www.webserver.com/idlsendmail.php?email='+to, /STRING_ARRAY)  ;Change webserver.com to your domain name
IDL> obj_destroy, oUrl
An email should appear in your inbox shortly afterwards. If not, check your spam folder! Note: Fernando Santoro also has a related example of using IDL and PHP on the VIS Code Library.
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