Using Global Mapper and Global Mapper Mobile to Prepare for a 186-Mile Bike Ride

After I crossed the finish line of the Trek Across Maine in 2018, I immediately signed up for the next ride without hesitation.

The cycling event takes place over three days and spans 180 miles — starting in the western mountains of Maine and ending on the state’s coast. It benefits the American Lung Association, which is why I chose it as my first cycling event to participate in. I rode in honor of my grandmother who had COPD.

Me in Belfast, Maine after finishing my first Trek Across Maine in June 2018.

When I finished the 2018 Trek, I was so excited that:

  1. I survived!
  2. I got to see a beautiful part of the state I live in
  3. I would be so much more confident on the next Trek because now I knew the route

But then the Trek organizers changed the route for 2019. *womp, womp, womp*

Instead of starting at Sunday River and ending in Belfast, the 2019 Trek would start and end in Brunswick, making a 186-mile loop in central Maine. The route wouldn’t “trek across” anymore, it would “trek around”.

On top of learning about the new route, I hurt my knee badly in January while doing a simple leg stretch (lame!) which was a training-changing injury. So, with a lowered confidence, I wanted to learn more about the new route.

Here’s how I used Global Mapper to visualize and mentally prepare for the 2019 Trek, and how I used Global Mapper Mobile to record my 186-mile journey.

Using Online Data and the Path Profile Tool in Global Mapper

The Trek provides GPX files for each day of the ride on the organization’s website. I downloaded these files; dragged them into Global Mapper; and uploaded elevation data, satellite imagery, and a street map from Global Mapper’s free online data sources.

Using the elevation data, I created path profile views of each of the three riding days. This allowed me to see which of the days would have the largest climbs and where those hills were located. After only a few minutes looking at the data, I could see that Day 2 would be the most challenging. Only ten miles into the 62-mile day, there would be a 375-foot climb, four 225-foot hills, and another 375-footer at mile 45.

Day 1 of the Trek Across Maine
Here’s the elevation of Day 1, the route from Brunswick to Lewiston, Maine.
Day 2 of the Trek Across Maine
Here’s Day 2 from Lewiston to Waterville, which looked like (and proved to be) the hardest day of Trek 2019.
Day 3 of the Trek Across Maine
Here’s Day 3, which appeared to be much easier than Day 2 with only one 250-foot climb at mile 31.

I also explored the “design” of the route by looking at it over satellite imagery to see the vegetation and water bodies I would be riding by. Although Day 2 appeared to be the toughest, it also looked as if it would provide some beautiful views over lakes in the rural Fayette and Readfield area.

Satellite imagery and the Trek Across Maine route in Global Mapper
The three-day route of the Trek Across Maine over satellite imagery. Day 1 is red, Day 2 is green, and Day 3 is blue.

Planning Training Rides in Global Mapper

Looking at the path profiles helped me plan my own rides for training. After talking to some cyclists and looking up popular routes in my area, I planned a 28-mile training ride from my apartment in Portland to Gray that included a 375-foot climb — a hill similar to those two big ones on Day 2.

Using the Digitizer in Global Mapper and my online data, I mapped out this training ride, too.

Training ride from Portland to Gray, Maine
Here is the 28-mile training ride I planned with the computer cursor hovering over the top of the 375-foot climb around mile 10.

Exporting my Map for the Road

In addition to using Global Mapper to look at the path profiles of each day of the Trek, I also used it to add vector points representing each rest stop along the route. After adding these points, I was ready to export my map as a Global Mapper Mobile Package (GMMP) file. Global Mapper 21 and Global Mapper Mobile v2 will allow for a native projection to be retained in a GMMP file. So as I exported, I chose to retain my projection, in my case just for visualization purposes.

I uploaded this file to my Global Mapper Mobile app, and planned on adding data to it while on the 186-mile ride.

Exporting a Global Mapper Mobile Package
Exporting a Global Mapper Mobile Package file from Global Mapper Mobile.

Picture Points and the Measuring Tool in Global Mapper Mobile

June 14, 2019 was the first day of the Trek. I had my map in my Global Mapper Mobile app, and I was ready to start documenting my ride!

There are a few ways I could add photos to my map in Global Mapper Mobile. I could create points on my map from geotagged photos, or I could take photos right in the app and add them as attributes to previously existing points. Since I take so many photos with my iPhone camera, I chose to add photos using the Picture Point Create Mode — creating points from photos I had taken outside of Global Mapper Mobile.

Creating a picture point in Global Mapper Mobile
Here are screenshots of the process of creating a picture point on my map in Global Mapper Mobile. I added a photo of my coworker Jeff and me at the second stop on Day 3.

I originally planned on using the app primarily for documenting my ride, but I found it useful in other instances.

When Day 2 really turned out to be the hardest day, I opened Global Mapper Mobile at the third rest stop to see the distance between me and Colby College — the destination of that day. It was a long 21.6 kilometers (13.4 miles) to ride with sore seat-bones and my disappointment in the shortage of fluffernutter sandwiches at this stop.

Using the Measure tool in Global Mapper Mobile
Using the Measuring tool, I figured out how much further I had to go to get to the last stop of Day 2 of the Trek Across Maine.

Global Mapper and Global Mapper Mobile: Easy as Riding a Bike

As Day 2 proved to me, riding a bike isn’t always easy. But GIS software can be!

I am not a GIS professional. I know that editing and exporting a simple map of a bike route isn’t rocket science. But Global Mapper’s user-friendliness made that non-rocket science even easier.

It took just a few minutes of viewing the route with elevation, street, and satellite data to get a better idea of what the 2019 Trek would be like. Even though exporting my Trek map to Global Mapper Mobile was the first time I had used the desktop and mobile apps in tandem, it was a very straight-forward process.

Uploading a map from Global Mapper Mobile to the Global Mapper desktop
A screenshot of the final photo I added to my map in Global Mapper Mobile. It’s a photo of my team and I just after crossing the finish line.

When I returned back to the office after my second Trek Across Maine, I exported my GMMP file from Global Mapper Mobile and imported it to my Global Mapper desktop. I clicked the vector point labeled “Finish Line” with the Feature Info tool, and up popped a photo of me and my Trek Across Maine team.

Immediately after that picture was taken, I signed up for Trek 2020 without hesitation.


Chelsea Ellis


Chelsea Ellis is Graphics and Content Coordinator 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 graphic design at Maine newspapers, and as a freelance photographer.

Where in the World Geo-Challenge — August 2019

View the form at Google Forms >

Top Five New Features in Geographic Calculator SP1

 

Chelsea E | Projections
New dropdown to easily access recently used files in Geographic Calculator 2019 SP1.

 

In early June, we introduced the first service pack update of Geographic Calculator 2019. The new features and functions in this version of Blue Marble’s coordinate conversion software are designed to improve its user-friendliness, accessibility, and efficiency. Although some changes seem slight, such as easier access to recently opened files, they have a big impact on user’s productivity in the software.

Here is a list of the top five new features of Geographic Calculator 2019 SP1:

1. Support for Open Document Spreadsheet (ODS) format

Opening an ODS file in Geographic Calculator 2019 SP1.

In Geographic Calculator 2019 SP1, we added support for the open-source table format Open Document Spreadsheets (ODS) to make Geographic Calculator more accessible to OpenOffice users.

2. Support for batch processing of Area Calculation jobs

Batch processing Area Calculation jobs in Geographic Calculator 2019 SP1.

Before the 2019 service pack, users had to process Area Calculation jobs one by one. In Geographic Calculator 2019 SP1, we’ve added batch support for performing mass calculations for multiple area files.

3. Support for the new Equal Earth projection

The new Equal Earth projection in Geographic Calculator 2019 SP1.

In 2018, Bojan Savic, Bernhard Jenny, and Tom Patterson invented the Equal Earth projection that is inspired by the Robinson projection but retains the relative size of areas. We’ve added this new projection to the long list of projections available in Geographic Calculator.

4. Bulk Export to WKT for coordinate systems

 

Chelsea E | Projections
Bulk exporting coordinate systems together in one WKT file in Geographic Calculator 2019 SP1.

 

Users can now bulk export multiple coordinate systems (or coordinate transformations) together in one WKT file in Geographic Calculator 2019 SP1. This supports interoperability of data across platforms where coordinate systems may or may not be standardized. You can now manage your coordinate systems in Geographic Calculator, and then quickly export them to standardize the options in your other mapping packages for display and analysis.

5. Updates to the Project Manager

 

Project Manager in Geographic Calculator 2019 SP1
The new Project Manage in Geographic Calculator 2019 SP1 now shows the status of jobs.

 

The Project Manager in this service pack version has been updated to be the one-stop-shop for users to process and see the status of jobs in one location. In previous versions of Geographic Calculator, process status was located at the bottom of the interface, taking up screen space.

Over the past 26 years, Geographic Calculator has become an industry leader for accurate coordinate reference system and datum management. This most recent version of the software streamlines user accessibility with new batch and bulk export options, and the additional support for universal and open-source formats.

 

Blue Marble Monthly: NGS to Present at GeoTalks 2019

 

 

NEWS  |  National Geodetic Survey to Present at GeoTalks

Exciting news! The Northeast Regional Geodetic Advisor Dan Martin from the National Geodetic Survey will be speaking along side GIS professionals from BSP Engineers, LiDARUSA, and MFBI Technologies at the first annual Blue Marble GeoTalks on March 21. Martin will present on the upcoming replacement of NAD 83 and NAVD 88 in year 2022.

Registration to attend the online geo-conference is free but space is limited, so be sure to register as soon as possible.

 

 

ACADEMIC  |  And the Global Mapper Scholarship Goes to …

James Heslington!

Blue Marble is pleased to announce that the winner of the 2018-2019 Global Mapper Scholarship is James Heslington – a student in the Survey and Land/Environmental Management MSc program at the Camborne School of Mines, University of Exeter. Read more about Heslington and the research project he submitted to win the $500 scholarship by clicking the link below.

 

PROJECTIONS | Five Reasons to Sign Up for Training

While all of Blue Marble’s training options have their merits, the Public Training courses come with an extra handful of benefits. This blog entry lists just a few of these opportunities for getting the most return out of a Global Mapper investment.

 

WEBINARS  |  What’s New in Global Mapper 20.1

Global Mapper v20.1 offers several new features including new Digitizer tools, significant upgrades to the Path Profile tool, enhanced LiDAR querying, and much more. In this Global Mapper webinar, that was broadcasted live on March 6, Blue Marble application specialists showcase some of the highlights of this release.

 

 

BLUE GOT MAIL  |  Changing the Color of Map Labels

Billy Noble, Applications Specialist at Blue Marble Geographics, answers questions that come into the technical support inbox. In this video, Billy demonstrates how to customize the color and fonts of labels in a layer of a map in Global Mapper.

 

mong the many upgrades included in Global Mapper v.20.1 is support for the internationally recognized S-52 symbology. An extensive collection of marine navigation symbols is now built in to the software and these are automatically applied when loading S-52 Electronic Navigational Charts (ENC).

About the chart above: Vector Electronic Navigational Chart (ENC) of the approaches to Portland harbor on the coast of Maine. The internationally recognized S-52 symbology is now included in Global Mapper v.20.1.

 

Where in the World Geo-Challenge

Surprisingly, no one who entered February’s Geo-Challenge guessed that the bridge spanning New York’s East River was the Brooklyn Bridge. So much for trying to trick you. Among those who correctly identified Manhattan Bridge, along with the four other locations, was Max Shaw-Champion from Perenco. Max will shortly be receiving a copy of Global Mapper 20.1.

Click here for the correct answers to February’s challenge and to try your hand at March’s five locations, click the link below.

 

See complete terms and conditions here.

EVENTS  |  Training in Orlando, Denver, and Ottawa

There are still a few seats available for the Global Mapper and LiDAR Module training classes in Denver on April 9 – 11. Sign up by April 2 to take advantage of this opportunity to learn how to get the most out of Global Mapper.

If you can’t make it to Denver, here are other Public Training opportunities in 2019:

Perth, Australia  |  July 16 – 18

Sydney, Australia  |  July 23 – 25

Calgary  |  August 13 – 15

Houston  |  October 8 – 10

Foreshadowing Geodetic Updates: NADCON 5.0 in Geographic Calculator 2019

The latest version of Blue Marble Geographics’ coordinate conversion software continues the 25-year tradition of providing solutions for the most complex geodetic challenges. Geographic Calculator 2019 offers a number of requested improvements, such as a more user-friendly interface, a universal copy and paste function, a new angular unit conversion tool, as well as several enhancements to seismic file format support. However, a closer look also reveals several new features that provide some insight into more significant shifts in Blue Marble’s future development plans.

Geographic Calculator 2019 has added support for version 5.0 of the National Geodetic Survey’s (NGS) North American Datum Conversion tool (NADCON 5.0). This single line item in the release notes may be easily overlooked, but it represents years of work by NOAA-NGS. It also represents a fundamental change in the way United States coordinate reference system and reference frame transformations are performed. Before delving into the details, let’s answer this question…

What is NADCON 5.0?

The origin of this transformation methodology is rooted in the readjustment of the North American Datum of 1927 (NAD27) to the North American Datum of 1983 (NAD83). The differences between these reference frames were very regional and irregular, which resulted in shifts that could not easily be modeled with traditional mathematical transformations. The solution was the original North American Datum Conversion (NADCON) Utility, which was adopted in 1990 as the federal standard for modeling differences between the two systems.

The early versions of the NADCON transformations typically had an accuracy of 12 to 18 centimeters, which represented a significant improvement over most other large-scale models at the time. That said, the tool did have its shortcomings. According to NGS, it was “poorly documented, was applied inconsistently across regions, contained numerous errors, and was difficult to use”. Those kinds of defects were also shared by another NOAA-NGS tool called GEOCON, introduced during the realization of the NAD83(2007) reference frame. The significant difference between the original NADCON and GEOCON transformations was the latter’s ability to perform three-dimensional coordinate transformations among various newer NAD83 frames. This was also improved in GEOCON11 (version 2.0), but time constraints meant that only eleven states were able to provide data for these adjustments.

NADCON 5.0 was built to replace both of these imperfect NGS tools. Unlike its predecessors, it is well-documented, more “user-friendly”, it includes downloadable transformation grids that can be integrated into third-party software, and covers the entire United States (including overseas territories). Newer remote sensing technology and the ability to handle much larger datasets also allows for a finer level of detail during the transformation process. As with the GEOCON model, NADCON 5.0 also offers new transformations between many reference frames and three-dimensional coordinate systems, and it supports the US National Spatial Reference System (NSRS) as well as many other previously unrecognized local horizontal coordinate systems dating back to the late 1800s. It also provides local error estimates as a component of the transformation, which is likely to pique the interest of your friendly neighborhood geodesist.

How does NADCON 5.0 work?

Like the traditional NADCON version 4.0 transformation, version 5.0 is delivered as a set of grid files that can be used to move between individual reference frames. Unlike version 4.0 however, it is no longer limited to horizontal shifts. The new grid files contain fields for identifying 3D transformations between reference frames and an error metric where available. Furthermore, there is a much larger set of grids to choose from and it is no longer constrained to the traditional NAD27->NAD83 or NAD83(20xx)->NAD83(20xx) model. Instead, transformations can be performed between six separate realizations of NAD83, NAD27, and the US Standard Datum (USSD). NADCON 5.0 also provides access to precise transformations between other historic systems such as the Old Hawaiian Datum, Puerto Rico 1940, and local Alaskan systems, such as the St. Paul Island reference frame of 1897 and 1852.

Unlike the old version 4.0 transformation, NADCON 5.0 was designed to chain together various grid files to provide a more accurate result. This makes things a bit more complicated because of the need to keep track of individual transformations as components of a larger concatenated operation. The following diagram shows an example of a shift from the NOAA Technical Report NOS NGS 63.

Diagram from the NOAA Technical Report NOS NGS 63

The illustration shows a chain of transformations for moving a surveyed data point based on the USSD system to NAD83(2011). Any subset of the chain can be used independently as part of the NADCON 5.0 model. This chain process can support a new model once it is created (for example, the 2022 National Reference System) and with one grid file, associate it to all historical models.

So what is foreshadowing about the addition of NADCON 5.0 in Geographic Calculator?

NADCON 5.0 will be instrumental in the transition to yet another adjustment from NAD83 on the horizon — the introduction of the new National Reference Frame of 2022 (NATRF2022) and NSRS2022.

A graphic from the NOAA Technical Report NOS NGS 63 shows the errors for horizontal transformation for USSD/NAD 27/CONUS.

If you are a frequent visitor to Projections, the Blue Marble blog, you may have read an entry by Product Manager Sam Knight explaining why the new NSRS is being developed. If you haven’t seen Sam’s entry, the short explanation is that geoid and GPS-height accuracy have improved and that NAD83 did not account for the dynamic movement of our planet over time. Under the new system, all measurable gravity-related values (such as orthometric heights, geoid undulation, deflections of the vertical, etc…) will be time dependent for compatibility with the NATRF2022 coordinate systems — making for more accurate time-dependent transformations.

NSRS2022 will also replace all of the current vertical datums, which will require updates to VERTCON — another NGS transformation tool. Originally designed to transform between the North American Vertical Datum of 1988 (NAVD 88) and the North Geodetic Vertical Datum of 1929 (NGVD 29), the 2022 update to VERTCON will transform orthometric heights from the old datums into heights in the new North American-Pacific Geopotential Datum (NAPGD2022).

Small changes leading up to larger changes

With awkward acronyms, complex geodetic concepts, and NGS tool history, the 2022 update as it relates to NADCON 5.0 is a lot for a short blog entry. But hopefully you get the key message: NGS is making big changes that will lead to more accurate transformations and Geographic Calculator is an early adopter of these new geodetic parameters. Be on the lookout for more updates as tools like NADCON 5.0 develop and grow. Until then, the Geographic Calculator will continue to hold a finger on the NGS pulse.

To learn more about NGS, its tools and the upcoming NSGS of 2022, visit their website at https://www.ngs.noaa.gov or read this NOAA report.

Where in the World Geo-Challenge – December 2018

View the form at Google Forms >

Where in the World October 2018 Answers

How Well Did You Do?

Name the body of water – Gulf of Carpentaria

 

 

 

 

 

 

 

 

 

 

 

Name the capital city – Dakar

 

 

 

 

 

 

 

 

 

 

 

Name the river – Paraná River

Parana River

 

 

 

 

 

 

 

 

 

 

 

Name the island – Severny Island

Severny Island

 

 

 

 

 

 

 

 

 

 

 

Name the country – Albania

Albania

 

LiDARUSA Uses Global Mapper on Travel Channel’s ‘Expedition Unknown’

Did you catch Global Mapper on television over the summer? In an episode of the Travel Channel show, “Expedition Unknown,” the production crew visited Guatemala in search of Mayan Ruins. A team from LiDARUSA, longtime Global Mapper users, were also involved in the project, collecting LiDAR data for the Mirador Basin Project. Using a combination of drones and helicopters, the data was collected and processed, revealing an uncharted Mayan causeway. As you will see in the footage below, Global Mapper was used to classify bare earth and to view the model that was generated.

No need to worry about this brief cameo going to our heads, the “As Seen On TV” people won’t let us use their logo.

Blue Marble Monthly – LiDAR vs PhoDAR and Becoming a Pilot

Product News, User Stories, Events, and a Chance to Win a Copy of Global Mapper Every Month

For many, summer is a time for relaxing, for taking your foot off the gas, for being lazy. Not at Blue Marble. We are busy preparing for the next major release of Global Mapper in just over a month, planning our hectic autumn travel schedule, and making the final preparations for our 25th anniversary user conference here in Maine. In this edition of Blue Marble Monthly we formally invite you to join us at BMUC. We also hear from Sam Knight about becoming a licensed drone pilot; we discuss the differences between LiDAR and PhoDAR; and we challenge your geographic prowess in the Where in the World Geo-Challenge.

NEWS | BMUC is Coming to Portland, Maine

We hereby cordially invite you to Blue Marble’s home state for our User Conference (BMUC), as we continue to celebrate our 25th birthday. Not only will you have a chance to meet other users and learn about the latest software developments, but you’ll also hear from some interesting presenters including Ron Chapple who will be speaking about his work in the Pulitzer Prize-winning project, “The Wall”.

 

PROJECTIONS | Becoming an UAS Pilot

Ready for the kids to go back to school? Sorry, we can’t help you with that, but we recently sent our own Sam Knight back to school to learn what it takes to become a licensed drone operator. As we continue to develop tools for the UAV industry, it is essential that we have the first-hand knowledge of what is required. For Sam, this was a journey into unknown territory.

 

PRODUCT NEWS | Call for Beta Testers

Blue Marble’s development process has always relied on direct input from users and now you have a chance to be part of that process. Sign up as a beta tester today and we’ll let you know when a beta version of either Global Mapper or Geographic Calculator is available for you to put through its paces.

 

DID YOU KNOW? | LiDAR vs Photogrammetric Point Clouds

The Pixels-to-Points tool has caused quite a stir in the UAV industry. Creating a high-density 3D point cloud from a drone would have been unheard of just a few years ago. While the data may look and feel like traditional LiDAR, there are significant differences between the two formats. In a recent blog post, we outlined some pros and cons of each.

USER STORY | Planning Truck Stops with Global Mapper

In the latest Global Mapper case study, we hear from Michael Frings, General Manager of MFBI Technologies about how the LiDAR Module’s point cloud processing tools played a critical role in planning autobahn truck stops in Germany.

“The fact that the LiDAR Module is so powerful, giving us the ability to handle large point clouds, was the killer argument for us to go with Global Mapper.” – Michael Frings

 

 

VIDEOS | Can Your GIS Do This Without Extensions?

Simply stated, Global Mapper gives you more functionality for less money. Need proof? Take a look at this short video highlighting some of the terrain processing tools that are available out of the box in Global Mapper. No extensions required.

This and previous Blue Marble Webinars and Webcasts can be viewed at the Blue Marble YouTube Channel and on the Webinars page on the Blue Marble web site.

 

Where in the World Geo-Challenge

The geographic sleuths were once again hard at work in July. Most of you were able to identify all five locations in the Where in the World Geo-Challenge. The randomly selected winner of a copy of Global Mapper is Roy Mayo, a land surveyor from Mackay, Mackay, and Peters. If you are one of the handful whose response to the capital city question was, “Haven’t a clue” or words to that effect, check out the correct answers here then click the link below to see if you can do any better in August’s challenge.

 

See complete terms and conditions here.

EVENTS | Global Mapper Training in Houston

The Blue Marble training team will be hitting the road again in October with the next three-day Global Mapper class scheduled for Houston. Typically our Houston classes fill up fast so be sure to sign up as soon as possible to reserve your spot.

“Without a doubt, one of the most informative and enjoyable technical training classes I have ever taken.”
– Recent Global Mapper trainee

 

Where in the World Geo-Challenge – August 2018

View the form at Google Forms >