The Value of Global Mapper: No Extensions Required

The 3D Viewer in Global Mapper displays a digital terrain model with a custom shader applied to the surface. Global Mapper is a powerful GIS application right out of the box, with no extensions required.

Say that you are about to invest in your first GIS software license.
You need software that can do it all; from basic thematic mapping to terrain analysis, and GPS tracking to 2D/3D digitizing and visualization. But when you take a look at big-name products, you find that single-user licenses cost about $1,500. You also discover that you’ll have to purchase extensions to get all the functionality you need. You’ll probably be spending thousands of dollars. Whether you have the money or not, you might be asking yourself if there’s an alternative software that provides more value.

There is.

In this blog entry, we highlight some of the out-of-the-box functionality of Global Mapper— a robust, easy-to-use, and genuinely affordable alternative. Priced at about $500, Global Mapper doesn’t need expensive extensions to deliver what you’re looking for.

Here are just a few of the powerful functions and tools Global Mapper has to offer with no extensions required.


Creating an elevation grid from LiDAR data in Global Mapper
Creating an elevation grid from LiDAR data in Global Mapper.

Terrain Creation – Generate Elevation Grids from 3D Vector Data

Even though Global Mapper’s online service provides access to data resources, such as the USGS National Elevation Dataset and the ASTER Global Digital Elevation Model, sometimes the appropriate digital terrain data isn’t readily available. In such instances, generating a DTM from 3D vector data can be a solid alternative. With a few clicks, Global Mapper can generate an elevation grid from XYZ files or LiDAR data, allowing for the immediate examination and visualization of the surface model in the 3D Viewer.

Global Mapper also provides a number of terrain analysis tools, such as the ability to display a vertical profile along a path, creating a view shed or watershed analysis, combining terrain layers, and volume calculation.


The cut and fill volumes calculated for a road project in Global Mapper.

Volume Calculation – Measure and Visualize Cut and Fill Values

Modifying terrain is a necessary preliminary step in many construction projects. It requires determining how much of a surface needs to be cut and filled, which helps estimate the cost of materials and labor before beginning a project.

Global Mapper offers the ability to quickly calculate volumes of piles, depressions, and between two surfaces. Along with providing cut and fill measurements, the software uses these calculations and other specified parameters to generate 3D visualizations. For example, Global Mapper can simulate the leveling of terrain to make way for something like a new road. This calculation and 3D visualization is a powerful way to illustrate the preliminary plans of an engineering project.


Contours generated in Global Mapper, showing elevation with vector lines.

Contour Generation – Create Vector Lines from an Elevation Grid

Contours are the fundamental feature of a topographic map. Generating contours is also a simple task that requires only an elevation grid and a few clicks of the mouse. Global Mapper has the ability to analyze terrain and generate vector layers of contour lines that can be edited for a map, or exported to a CAD system or other software.


NDVI grid created in the Raster Calculator in Global Mapper.

Raster Calculation – Pull Information from Color Values

Satellite images can offer a lot of visual information, from patterns in terrain to geological changes over time. With the right tools, imagery can offer even more data that is not immediately apparent. RGB (red, green, blue), as well as multispectral values of pixels, can be plugged into formulae that calculate characteristics such as the “greenness” of vegetation, snow cover, or how much land was burned in a forest fire.

Global Mapper has a raster calculator that comes with predefined formulae for producing and highlighting this information. The health of vegetation on a farm, for example, could be calculated and visualized by using the Normalized Difference Vegetation Index (NDVI). If the available predefined equations in the raster calculator aren’t tailored to a user’s needs, the calculator also allows for the use of custom formulae.


Global Mapper supports more than 300 file formats.

Format Support – Support for 300+ Formats

File support might not sound like the most exciting feature, but it’s absolutely an invaluable one when a mapping project deals with older or uncommon files.

Global Mapper’s support for more than 300 formats provides users the ability to open and convert virtually any geospatial file. And, it’s list of formats is constantly growing, adding more value to Global Mapper as the software continues to mature.

Global Mapper – An Easy and Affordable Choice

Global Mapper not only disproves the idea that GIS has to be a complex discipline, but also that it has to be an expensive one. Blue Marble Geographics’ mission for Global Mapper is to provide GIS novices and professionals alike with the ability to create high-quality maps at a genuinely affordable price.

It’s powerful right out of the box, with no extensions required.

See the value for yourself by downloading a free trial today.


Chelsea Ellis


Chelsea Ellis is a graphic designer and social media manager at Blue Marble Geographics. Her responsibilities range from creating the new button graphics for the redesigned interface of Global Mapper 18 to editing promotional videos; from designing print marketing material to scheduling social media posts. Prior to joining the Blue Marble team, Ellis worked in page layout and graphic design at Maine newspapers, and as a freelance designer and photographer.

3 Replies to “The Value of Global Mapper: No Extensions Required”

  1. Hi GM Team,

    Myself and my Team use Global Mapper for marine apllications rather then topographic ones. It’s a feature not often (hardly ever) is mentioned in your publications.

    GM is now contractually specified as the only acceptable software to use in our Dredging Tenders and Contracts for all surface area and quantity calculations. These contracts are valued a tens of millions of dollars.

    Kind regards

    Frans

  2. Hello
    use G.M. since many years.
    As support maps I use the SRTMs.
    The compliments are superfluous, it is really simple and gives an immediate idea of ​​what needs to be done.
    I use G.M. in a particular way (in the Radio Frequency field for radio links) I put the data of the two sites and check the visibility between the two sites to see if there are any obstacles using the visualization of the first Fresnhel zone.
    The function that uses very much the “view shed tool” where reversing the functions of the transmission and reception points I can establish the coverage area that can have a reception site with a autotracking antenna and an aircraft that transmits to the ground .
    It would be useful to put a function that according to the “Frequency to use, the power of the transmitter, the gains of the antenna RX and TX and depending on the distance can provide a prediction of the power of the signal received” I know that there are other software “dedicated “who do this work and use it, but can” integrate “something like that in GM would be great.

    1. Paolo, Thank you so much for your comment, and your suggestion! Global Mapper is heavily influenced by user feedback, so I really appreciate you sharing.
      If you have any suggestions for improving the software, please send them in an email to geohelp@bluemarblegeo.com
      That email address is where we organize and keep track of all users’ requests.
      Thanks again!

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