Top 5 Features of Global Mapper’s Lidar Module Version 22

Written by: Cíntia Miranda and David McKittrick

The Lidar Module®, an optional add-on to Global Mapper®, provides advanced point cloud processing tools, including Pixels to Points®, for photogrammetric point cloud creation using overlapping drone-captured images, automatic and manual point cloud classification, as well as feature extraction, hydro-flattening, and more.

The latest version of the Lidar Module includes several new tools, as well as improvements to many of the existing features and functions. This blog highlights the top five new features of version 22:

 

  • A new Terrain Paint tool 

 

Terrain Painting is a set of terrain editing tools that provide the ability to modify the elevation values of a gridded elevation dataset interactively. Using simple drawing tools, this innovative addition to the Lidar Module can be used to fill gaps in the terrain, raise or lower the existing elevation inside a defined area, or set a specific elevation height. Dynamically editing a terrain layer in this way is useful for site planning, modeling, and cleaning up or improving sensor derived elevation data. This tool works with all types of gridded elevation datasets, including DSMs and DTMs, bathymetric datasets, lidar derived terrain data, and more.

The ‘Fill Gaps’ operation is used to fill in missing areas of terrain.

The ‘Smooth Terrain – Average’ operation is used to create a cleaner terrain surface.

In this example, the ‘Set Terrain Height’ tool is used to create the simulated path of a road. The feathering effect creates a sloped transition into the surrounding terrain.

 

  • A new algorithm that improves building classification 

 

The Lidar Module includes a variety of automatic feature identification and point reclassification tools. The underlying algorithms analyze the point cloud’s geometric structure in a local context to look for patterns that match a prescribed format. The specific options include reclassification of points representing high vegetation or trees, powerlines, power poles, and buildings. For the version 22 release, the algorithm for identifying buildings in a point cloud has been updated to provide a more accurate reflection of human-made structures when working with point cloud data from any source.

The orange points have been automatically classified as building points.

 

  • Improved building extraction with better 3D shape simplification 

After a point cloud has been appropriately classified, individual vector features can be created, reflecting the object’s three-dimensional characteristics. For example, 3D line features can be automatically generated by connecting the dots for those points that were identified as powerline points. Perhaps one of the more useful applications for this feature extraction tool is for creating 3D polygons representing buildings. In version 22, several new settings and options have been added, and the vectorization algorithm has been significantly improved to provide more accurate building outlines. Individual surface planes are now created, allowing the building’s specific structure to be more precisely represented, and the simplification process has been updated, resulting in cleaner roof planes and sidewalls.

Complex building features extracted from a point cloud as 3D polygons.

 

  • A new option to generate a process summary report when using the Pixels to Points process 

 

The Pixels to Points tool is arguably one of the most powerful components of the Lidar Module. Using simple drone-collected images, this tool photogrammetrically analyzes and identifies recurring patterns of pixels in multiple images to create a 3D reconstruction of the environment. Version 22 of the Lidar Module includes several improvements to this function, most notably a new ‘Post Processing Report’ that concisely summarizes the pertinent information from the data generation process. This report includes a summary of input data, processing time, output data, quality assessment, as well as a visual representation of the individual output layers. The report is in HTML format and will automatically open in your default web browser from where it can be saved as a PDF file.

A section of the report generated after the Pixels to Points process has been completed.

 

  • Two new lidar draw modes

 

3D lidar or other point cloud data can be rendered to reflect various point attributes, such as elevation, return intensity, and point classification. This latest release introduces two new lidar draw modes:

Color by Source Layer — With this option, a unique color is applied to each loaded point cloud layer as a simple way to distinguish separate point cloud layers in the workspace clearly. A specific color can be selected for a layer in the Lidar Display for that layer.

Color by Scan Angle – In this mode, lidar points are colorized using the scan angle attribute, with values potentially ranging from -90 to 90 degrees. The actual color of the points is determined by the Shader Option chosen in the workspace.

If you’re not familiar with Global Mapper and the Lidar Module, request a two-week free trial today. If you would like to speak with a representative about how the software can address your unique geospatial challenges, request a demo!

Is Global Mapper right for you? Take a look at the application’s top 10 features

Written by: Cíntia Miranda

Global Mapper is a robust GIS application that combines a comprehensive array of spatial data processing tools with access to an unparalleled variety of data formats at a genuinely affordable price — license cost begins at $549, a fraction of the cost of competing applications.  The latest release includes Remote Desktop Protocol or RDP-enabled licensing for professionals working remotely — a very appropriate tool when many of us are working from home lately.

Developed for both GIS professionals and map enthusiasts, Global Mapper has virtually everything you need in GIS software such as complete interoperability with exceptional data support, powerful data processing in an intuitive interface, extensive raster and vector capabilities, state-of-the-art 3D visualization and analysis, simple installation and setup, and unlimited technical support.  

If you’re searching for a robust and affordable GIS application, here are the top ten features of Global Mapper:

1. Built-in online data access with extensive format support

Global Mapper offers a surprisingly extensive collection of free online data sources available for streaming or download as well as the ability to add in custom data sources of your choosing. Providing support for virtually every known spatial file format as well as direct access to common spatial databases, the application can read, write, and analyze virtually any spatial data.

2. Terrain analysis and 3D data processing

Global Mapper’s analysis functions include view shed and line-of-sight modeling, watershed delineation, volume measurement with cut and fill optimization, customized gridding and terrain creation, contour generation, and much more.  This is an extensive set of data processing tools for a truly affordable application.

3. Advanced point cloud and lidar processing capabilities

The Lidar Module is an optional add-on to Global Mapper that provides advanced point cloud processing tools, including pixels-to-points for photogrammetric point cloud creation from overlapping drone/UAV images, automatic point cloud classification, feature extraction, terrain hydroflattening, and much more. 

4. Data sharing and map publishing tools

When the time comes to share map data, Global Mapper offers numerous options including eye-catching page layout and printing tools, geospatial PDF creation, and direct web publishing to MangoMap, an affordable and easy-to-use online map service. Global Mapper also offers advanced page design and layout tools, including multi-page map book creation.

Multi-layered maps can be published to an online MangoMap account directly from Global Mapper v21.

5. Scripting and batch processing

Global Mapper users can automate most routine data processing functions using simple, text-based scripts or the built-in Batch Processing tool. The scripting language is simple and intuitive with a straightforward command and parameter structure mirroring many of the multi-step procedures that can be performed within the interface.

6. Advanced Image Processing

Global Mapper includes a powerful set of tools for processing imagery or raster layers. The image rectification tool allows any image to be positioned, scaled, aligned, and spatially distorted to create a geographically accurate raster layer. The powerful vector extraction tool can be used to create polygons from a range of colors in a raster layer. Image tiling, mosaicking, blending, cropping, feathering, and visual manipulation options provide the means to adjust the display and characteristics of any raster data layer.

7. Feature label creation and management

Professionals working in cartography say that the format and layout of a well-designed map always need some level of human input. Vector labels in Global Mapper can be assigned to their own layers, which makes formatting, moving, rotating, and deleting individual labels much easier. 

Label formatting in Global Mapper makes producing high-quality maps easier and faster. The screenshot above shows the repositioning of individual labels in a label layer.

8. Digitizing and Vector Editing Tools

When it comes to creating or modifying vector data, Global Mapper’s Digitizer provides a vast array of functions. From simple point, line, and polygon creation to COGO for manual geometric input, the Digitizer has all of the tools you need to create and manage vector layers. Specialized tools are also available for creating a custom grid, buffers, range rings, or virtually any geometric object. Supplementing these drawing tools are a large collection of attribute management and data visualization tools for creating thematic representations of vector data.

9. The ability to record a fly-through path using the fly-mode and walk-mode in the 3D Viewer 

Global Mapper not only is able to record fly-through videos, but it also allows users to “draw” a fly-through path by recording their movements in fly-mode and walk-mode in the 3D Viewer. Since the fly-through feature in Global Mapper is an easy way to create videos of 3D data and terrain, it’s commonly used for real estate and property management, planning drone or UAV flight paths, or simply creating a compelling presentation of your GIS data to stakeholders.

Global Mapper users can “draw” a fly-through path by recording their movements in fly-mode and walk-mode in the 3D Viewer.

10. A free mobile version

Global Mapper Mobile is a free app for iOS and Android devices that offers field viewing and data collection. It displays any supported data from the desktop software, streamlines data collection, and efficiently transfers data into the desktop software.  A professional-grade application is also available for purchase from the Apple App and Google Play stores.

There’s much more to Global Mapper! If this list piqued your interest and you’d like to find out if Global Mapper is the right GIS application for you, download a 14-day free trial and request a demo today!

Terrain Layer Support in Global Mapper Mobile v2.1

Written by Jeff Hatzel

One of the many new features in Global Mapper Mobile v2.1 is support for terrain layers, which introduces a variety of new functions and settings within the app. These new tools add to an already robust feature set that help to extend  the reach of your GIS. While much of this functionality is available in the free version of the app, some more advanced options are part of the optional Pro Module. 

Features available in the base version of the app:

Prior to the release of Global Mapper Mobile v2.1, a terrain layer exported from the desktop version Global Mapper was handled as a simple raster layer, without any elevation information.  The new functionality recognizes terrain layers and their respective elevation information and metadata.

All terrain layers will be rendered using the Atlas Shader, one of the default shaders in the desktop version of the application. Users can also control whether hill shading is enabled via a new setting found in the Configuration settings in the mobile app. 

Terrain data is displayed using the Atlas shader, with shading enabled by default (left). A setting found in Configuration allows users to disable hill shading if necessary (right).

Navigating to the Control Center within Global Mapper Mobile will feel familiar to users who work with the desktop software. The layer’s elevation range, units, and other related information are now available when viewing the metadata for a terrain layer. This provides a useful reference for users when in the field, providing situational awareness in relation to their data and surroundings.

Terrain layer metadata now shows relevant elevation information associated with the layer, including elevation range, units, and other pertinent information

The addition of terrain layer support to Global Mapper Mobile v2.1 also helps to expand location information by providing elevation information at a specific location. Enabling either Crosshair or GPS and Crosshair location mode will report the elevation values of the terrain at the crosshair location. This displays specific elevation information for a given location from a source other than the device’s location services.

The elevation value of a given location can be viewed when using a crosshair-based location option. As you pan and zoom on the map, the elevation value will update based on the loaded terrain layer.

Advanced options in the Pro Module:

Navigating to the new Shader Options section within Configuration provides Global Mapper Mobile Pro users more options to customize the terrain data. The Shader Name option allows access to any of the terrain shaders that are built into the desktop version of the software.

Users who need to simulate water level on their terrain data will find the Display Water Level settings beneficial to their workflows. Whether modeling water level rise or trying to understand what changes in water level will look like on the landscape, users can control when this is enabled, and at what elevation water is displayed.

Terrain layer support is just one of the many new features in Global Mapper v2.1. If you’re interested in exploring the app further, visit Global Mapper Mobile v2.1 for details. The app is also a free download from the Apple App Store and Google Play Store.

Working with Bathymetric Data

By: Katrina Schweikert

Global Mapper is well known for its file format support and terrain analysis capabilities. Perhaps what is less well known is the way the various data analysis tools in Global Mapper can be used to generate and analyze bathymetric data. 

Bathymetry is the study of topographic landforms below the water, such as on the ocean floor, the bottom of a lake, or even the bed of a river. Given that over 70% of the earth’s surface is covered with water, this branch of 3D analysis is extremely important in understanding the characteristics of the planet. What follows is an exploration of some of Global Mapper’s analysis and visualization techniques that are relevant to the bathymetric analysis. 

Great Barrier Reef Depth model obtained from Geoscience Australia

Bathymetric Data Support

Global Mapper provides support for over 300 file formats, and many of those include formats for bathymetric data, marine navigation, and remote sensing of subsurface data. Here are some examples: 

  • Marine Navigation and Nautical Charts (S-57 and S-63 with s-52 symbols, NOS/GEO, NV Verlag, PCX,  and others)
  • Sonar, Sidescan sonar and Bathymetric Sounding data (Lowrance Sonar, XTF, HTF, and others) 
  • Gridded Bathymetric Data (BAG, DBDBV, Hypack, IBCOA, GRD98, NITF, various other terrain formats such as netCDF, GeoTiff, ASCII grid)

Bathymetry in a DTM

Gridded bathymetric data provides various visualization and analysis options when loaded into Global Mapper.   The preformatted elevation shaders or a custom shader can be used to find the best color scheme to show depths of submarine landforms. Terrain Shaders can also reveal the slope steepness and slope direction of underwater topography. 

Displayed in the 3D viewer, gridded bathymetric data comes to life with draped imagery and charts, water level visualizations, and any other reference vector data. Quickly and easily generate elevation profiles, or a series of sequential cross-profiles using the Path Profile tool and Perpendicular Profiles setting. 

3D view of bathymetric data with path profile cutaway showing a shipwreck site in the Gulf of Mexico

Combining data from different surveys and fusing data from multiple sensors is as easy as loading in the datasets and ordering the layers. The analysis and visualization tools can automatically merge the various inputs to take data from the topmost layer or choose to view and compare the data from multiple surfaces simultaneously. There are also options for cropping, aligning, feathering, and comparing to create a more seamless integration between disparate datasets. 

Analyzing Bathymetry as a 3D Point Cloud

Global Mapper provides tools for converting existing sensor data such as sonar or soundings to a 3D point cloud; or for sampling existing gridded data to create an array of 3D points at the pixel centers. This enables the automated classification algorithms of the Lidar Module, which can be used to identify the seafloor and identify or remove other subsurface structures or topography. This powerful tool has been used for shipwreck detection and modeling, as well as identification of other subsurface features. 

Subsurface Contouring

Global Mapper includes an easy-to-use tool for generating precise depth contours and shorelines from gridded bathymetric data. The resulting line features can be edited and stylized in a variety of ways and combined with other datasets to create custom bathymetric charts. Alternatively, the areas enclosed by contours lines can be filled to create polygons that show the water extent at different depths or sea levels. 

Contour lines colored by elevation combined with other basemap data to create a custom chart

Measurement and Volume Calculation

Global Mapper provides various tools for calculating two- and three-dimensional measurements. In the 2D map view, the Path Profile window, and the 3D Viewer linear distances and areas are measured using a simple drawing function. Volume can be calculated from bathymetric data by either defining a height or by calculating numerous volumes across a range of water heights. Volume can also be measured by defining a plane or comparing the bathymetric data to a surface grid. This provides various options for water volume calculation. 

Flood Modeling

By combining bathymetric data with terrain data and using tools such as the watershed analysis and water level rise tool it is possible to discover flood extents, flow accumulation, and perform other hydrographic analysis. 

Employing the various terrain editing and terrain creation functions, Global Mapper can be used to create hydro-enforced DEMs or other modified surface models. These can be analyzed within Global Mapper or exported to various formats to support analysis in other applications. 

Temperature and other Measurements

The bathymetric analysis may also involve other gridded datasets such as surface temperature, salinity, gravimetric data, and various other measured values. These datasets can also be visualized, rendered in 3D, and contoured to provide additional insight into the dynamics of lakes, oceans, and other water bodies. 

The latest version of the Global Mapper and Lidar Module include several enhancements, many of which apply to bathymetric data analysis. If this blog piqued your interest and you’d like to find out if Global Mapper is the right application for you, download a 14-day free trial and request a demo today!

How Pixels to Points Works

By: Katrina Schweikert

The Pixels to Points tool in Global Mapper’s Lidar Module uses a process of Automated Aerial Triangulation to reconstruct the 3D scene present in overlapping images. This computationally intensive process may seem like magic, but it relies on basic concepts of vision and photogrammetry. Photogrammetry is the science of taking real-world measurements from photographs. Let’s pull back the curtain to reveal how this process works. 

What is Aerial Triangulation?

Based on photogrammetry techniques, the location, size, and shape of objects can be derived from photographs taken from different angles. By combining views from multiple images, the location of distinct parts of the image are triangulated in 3D space. This is similar to how depth perception works with two eyes; since the object in front of you is viewed from two slightly different angles, the brain can perceive how far away the object is.

Diagram of depth perception

In traditional photogrammetry with stereo-image pairs, the two angles of the image allow the photogrammetrist to measure objects in the image and determine their real world size. With automated techniques using many overlapping images, the entire 3-dimensional nature of the scene being photographed can be reconstructed. 

Photogrammetry measurement diagram

What are the steps in Automated Aerial Triangulation?

Automated Aerial Triangulation involves a number of steps to get from the original images to 3D point clouds, terrain models, textured 3D models, and orthoimages. The first step is to detect distinct features in each image, and then match those features across the adjacent images. The challenge is to automatically detect distinct features that may be at different scales and rotations in each of the images. 

Features detected in two images, with lines showing the matches found

After the features are tracked through the images, the initial reconstruction begins with a process called Structure from Motion (SfM). In the context of mapping technology, the structure of the 3D scene is revealed based on the motion of the camera. This process calculates the precise orientation of the cameras relative to each other and to the scene, and builds the basic surface structure of the scene. This is the point where the selected Analysis Method is applied. The Incremental Analysis Method starts with a set of the best matching photos, and incrementally adds the features from subsequent images into the scene to build the 3D reconstruction. This works well for drone-collected images collected over a large area in a grid pattern. The reconstruction will typically start somewhere near the center of the scene, and work outwards. The Global Method, by contrast, takes information from all of the images together and builds the scene all at once. This makes for a faster process, but it also requires a higher degree of overlap between adjacent images. This is recommended if the images are collected focusing on an object of interest, such as a building, especially when all of the images focus on that central area or object. The result of the Structure from Motion analysis is a sparse point cloud that builds the basic structure of the scene, and a set of precisely oriented cameras that show where and in what direction the images were taken relative to each other

Example of sparse point cloud with camera frustums

The final step of the Automated Aerial Triangulation process involves filling in additional details from each image that was calibrated as part of the scene. This process is called Multi-view Stereo. It involves calculating the depth of each part of the image (i.e. how far away it is from the camera), and then fusing those depth maps to keep the points that appear in multiple images. 

Depth map and confidence map based on overlap with other images

This process generates the final dense 3D point cloud. Based on the options selected, there may be further processing to convert the point cloud into a refined mesh surface (3D Model) that is photo-textured by projecting the images onto it. This option also produces the highest quality orthoimage, removing relief distortions based on the 3D mesh surface. 

What factors impact Automated Aerial Triangulation?

Lens Distortion

An important initial step in the Pixels to Points process is removing the lens distortion in the image. While the photograph may appear as a flat image capture of the target area to the untrained eye, most photographs contain some distortion, particularly towards the edge of the image, where you can see the effect of the curvature of the camera lens. Pixels to Points will remove distortion in the image based on the Camera Type setting. Most standard cameras need correction for the basic radial lens distortion in order to create an accurate 3D scene. The default camera type setting, ‘Pinhole Radial 3’, corrects for the radial lens distortion (using 3 factors). In some cases it might be beneficial to use the ‘Pinhole Brown 2’ camera model, which accounts for both radial distortion and tangential distortion, where the lens and sensor are not perfectly parallel. 

Image with distortion and processed undistorted imag

Some cameras have the ability to perform a calibration, which automatically removes distortion in the image. If the Pixels to Points tool detects from the image metadata that the images have been calibrated, it will switch to the ‘Pinhole’ camera model. If you know your images have already had the distortion removed either by the camera, or some other software, choose the ‘Pinhole’ camera model, which will not apply any additional distortion removal. The final two Camera Type options account for the more extreme distortion of Fisheye or Spherical lenses. Select these options if appropriate for your camera. 

Focal Length and Sensor Width

An important part of transferring the information in the image into a real world scale is knowing some basic camera and image information. The focal length and sensor width values allow for a basic calculation of how large objects are in the image, and thus how far away they are from the camera. What is calculated using these values is a ratio between a known real world size (the sensor width) and the pixel equivalent of that size in the image. This is a starting point for reconstructing the 3D scene. Focal Length information is typically stored in the image metadata. Global Mapper includes a database of sensor widths based on the camera model, however, you may be prompted for this value if your camera is not in the database. You can obtain this information from the device manufacturer. 

Image Position

The basic position of each camera is typically stored in the image metadata (EXIF tags). With a standard camera this location is derived from GPS, from which average horizontal accuracy is within a few meters. There are a few ways to improve the accuracy of the resulting data based on the desired accuracy, and decisions about cost vs. time spent. 

Height Correction

The GPS sensors contained in most cameras may have sufficient horizontal accuracy for some applications. However, the corresponding height values are usually less accurate and are based on an ellipsoidal height model. A basic height correction can be performed using the options for Relative Altitude. This will anchor the output heights based on the ground height where the drone took off (the height of the ground in the first image). You can enter a specific value, or Global Mapper can automatically derive the value from loaded terrain data or online references (USGS NED or SRTM). 

Ground Control Points

One way to correct the position of the output data is through the use of Ground Control Points. This is a set of surveyed points with known X,Y,Z locations that should be evenly distributed throughout the scene. The measured ground control point locations need to be visually identifiable throughout the corresponding images, so it’s common to use a set of crosshairs or targets placed on the ground throughout the collection area before the images are captured.

 

Ground Control Points can be loaded into the Pixels to Points tool and the corresponding locations identified in multiple input images. This will align the scene based on the control points taking precedence over the camera positions. This procedure is a more time-intensive option, but is streamlined through a process whereby the images containing each point are highlighted, It is also possible to use Ground Control Points after the output files have been generated. Global Mapper provides various tools for this, including 3D rectification and the Lidar QC tool, which can also provide accuracy assessment information. 

RTK and PPK Positioning

Hardware manufacturers provide options for improving the accuracy of the positional information by communicating with a reference base station in addition to satellites, and by performing additional corrections based on available information at the time of the image collection. This includes both Real-Time Kinematic and Post-Processing Kinematic options. With some systems, higher accuracy positioning information is written into image metadata, which can be used directly in the Pixels to Points tool. Other systems may save the higher accuracy positions in a text file, in which case you will want to load your images into the Pixels to Points tool and use the option to Load Image Positions from External File

 

Understanding the variables and data requirements for the Pixels to Points tool and other SfM processes will help you to collect images better suited for processing. In turn, this will create higher quality results for further geospatial analysis.

The latest version of the Global Mapper Lidar Module includes several enhancements, many of which apply to the Pixels to Points tool for generating point clouds and 3D meshes from drone-captured images. If this blog piqued your interest and you’d like to find out if the Lidar Module of Global Mapper is the right application for you, download a 14-day free trial and request a demo today!

Getting to Know the Global Mapper Toolbars

Written by: Cíntia Miranda, Director of Marketing

Global Mapper is a robust and yet easy-to-use GIS application that offers access to an unparalleled variety of spatial datasets, a complete suite of vector and raster processing tools, and an extensive collection of analysis tools, especially for working with Lidar or terrain data. If you’re new to Global Mapper, getting to know the toolbar is one of your first steps in familiarizing yourself with the application.  This blog provides a brief review of the buttons to help you understand the basic function of each.  More in-depth information is available in the Knowledge Base

The toolbars in Global Mapper provide quick and easy access to the most commonly used tools. To hide or display the toolbars, click the View menu and, from the Toolbars submenu, check or uncheck the appropriate checkboxes as needed.

The drop-down menu on the right side of each toolbar provides access to Customization of the toolbars, including adding new buttons and showing text labels.

Note that some toolbar buttons will not be available in certain situations. For example, most of the Digitizer (Edit) buttons will be disabled until one or more vector features are selected on the map.

Here’s what each toolbar button can do for you:

File

Open Data Files  Save Workspace  

Connect to Online Data  Map Layout Editor  

 Overlay Control CenterConfigure

 Overview Map

Navigation

Zoom (Alt+Z)Pan (Alt+G)

Zoom InZoom Out

Restore Last View (Ctrl+Backspace)Full View

Selection

Digitizer Tool (Alt+D)Select by Drawing Polygon

Clear Current SelectionSelect Labels

Tools

Measure Tool (Alt+M)Feature Info Tool (Alt+P)

Search Vector Data

Analysis

Create Elevation GridCreate Contours

Calculate Cut and Fill Volume (Ctrl+Alt+M)Path Profile (Alt+L)

Create View Shed (Alt+V)Create Water Shed

Combine/ Compare Terrain LayersCombine/ Compare Terrain Layers

Create 3D Fly-through

Viewer

Add 2D Map ViewsRotate Map

Image SwipeShow 3D View

Link 2D and 3D Views (Ctrl+Shift+3)Display Water Level

Increase Water LevelDecrease Water Level

Enable/ Disable Hill ShadingDynamic Hill Shading

Shader Drop-down Menu

GeoCalc

Enable GeoCalc Projection ModeAuto-select GeoCalc Transform

Launch Geographic Calculator

Favorites

Favorites Drop-down

Run Selected Command (Ctrl+Enter)

Digitizer (Create)

Create Point/ Text FeatureCreate Line Feature (Vertex Mode)

Create Line Feature (Trace Mode) (Shift+T)Create Area Feature

Create Rectangle/ Square Area FeatureCreate Circle/ Ellipse Area Feature

Digitizer (Advanced)

Create Distance/ Bearing/ COGO LineCreate Range Rings / Ellipses

Create Regular Grid of FeaturesCreate Strike-and-Dip Point

Cut Selected Area(s) From Another AreaRight Angle Draw Mode (R)

Ortho Draw Mode

Digitizer (Edit)

Move Selected Feature(s) (Ctrl+Shift+M)Rotate Scale Feature(s)

Display Area/ Line Vertices (Shift+V)Move Selected Vertices

Insert VertexCombine Line Features

Split Line At Selected VertexCreate Points From Line/ Area Vertices

Create Areas From LinesCreate Lines From Areas

Combine Selected AreasCrop To Selected Areas

Create Buffer Around Selected Features

GPS

Start Tracking GPS (Ctrl+T)Stop Tracking GPS

Keep GPS\ Video Vessel on screenOrient View to GPS \Video Heading

Mark Waypoint (Ctrl+M)Mark Waypoint from Averaged Position

Mark Waypoint at OffsetDisplay GPS Info

Animate

StartStop

SlowerFaster

AddRemove

Get the most of Global Mapper by learning how it can improve productivity, encourage efficiency, and save time and money in your GIS operations.  The following resources will help you become familiar and more proficient with the software.

1) The Global Mapper Getting Started Guide provides a concise overview of the software.

2) The Global Mapper Knowledge Base has more in-depth information about Global Mapper’s features and functions.

3) The FAQ page offers answers to commonly asked questions.

4) The self-guided training provides a series of free hands-on exercises, including written instructions and sample data files. Take a moment to download these instructional materials to learn how to use some of Global Mapper’s basic tools. 

5) The GeoTalks Express webinars are a series of free online presentations conducted every two weeks covering a wide variety of topics and themes. Sign-up to one or multiple webinars! 

6) Global Mapper online training classes provide the most effective way to get the most out of the software. Scheduled public classes provide a thorough introduction to the full breadth of the application’s features and functions, while a custom class will allow your organization to adapt the course content to meet your specific needs. For more information, email training@bluemarblegeo.co

Global Mapper’s intuitive user interface and logical layout help smooth the learning curve and ensures that users will be up-and-running in no time. Take advantage of the aforementioned resources and if you need any further assistance with the application, contact geohelp@bluemarblegeo.com.

What’s new in Global Mapper Mobile version 2.1

Written by: Cíntia Miranda, Director of Marketing

If you don’t have Global Mapper Mobile® on your phone or tablet, you’re missing out on a great opportunity to expand the reach of your GIS operations – for free!  Global Mapper Mobile is a powerful iOS and Android application for viewing and collecting GIS data.  It utilizes the GPS capabilities of mobile devices to provide situational awareness and locational intelligence for remote mapping projects. The mobile application provides maps-in-hand functionality for engineers, surveyors, wildlife managers, foresters, and anyone whose job requires access to spatial data in remote locations.

A complement to the desktop version of Global Mapper®, the mobile edition can display all of the supported vector, raster, and elevation data formats and offers a powerful and efficient data collection tool. The 2.1 release includes several new enhancements including:

  • Vector feature styling improvements with an increase in the number of built-in supported vector styles and expanded support for custom symbols. Feature styles can now be previewed when creating or editing a feature as well.
  • Terrain layers are now rendered with hill shading and a default color shader and elevation values can be viewed from elevation layers at a specific location. 
In addition to being able to render terrain data with hills shading and a terrain shader, the app will now display the terrain layer’s elevation value when in crosshair location mode.
  • A new option to set the layer transparency for raster and terrain layers. This latest release also features an improved color picker and support for Dark Mode.
The new Shortcut Bar (upper left) allows for quick access to Advanced GPS functionality and zooming/panning tools

For advanced field mapping applications, a Pro version of Global Mapper Mobile is available for only $50. Version 2.1 of Global Mapper Mobile Pro includes all of the capabilities of the free version and it also offers:

  • Advanced GPS support allowing users to connect to external high accuracy Bluetooth GPS devices, from vendors such as the Bad Elf and Juniper. This functionality allows users to access detailed information from these devices including the ability to view satellites, detailed location information, and even view/record the NMEA stream.  
Once an external GPS device is connected to the app, the Advanced GPS functionality allows the user to view detailed location information and check on a satellite connection, along with viewing and saving the NMEA stream.
  • A new configuration option that allows Pro users to select and change the terrain shader directly within the application.
  • Water display enablement to render the simulated water level over the loaded terrain data at a given elevation to visualize potential flooding.

If you’re already using Global Mapper Mobile, update to version 2.1 now!  If you haven’t tried it yet, download the app today and expand the reach of your GIS operations.

 

Try Global Mapper Mobile v.2.1 today!

[Download (iOS)]        [Download (Android)]

Try before you buy: Blue Marble Geographics trial licenses

Written by: Rachael Landry

Blue Marble Geographics offers trial licenses for both Global Mapper and Geographic Calculator to give you a chance to evaluate the products and to be sure that what you are purchasing meets your needs. There are two easy ways to receive a trial license for each product. 

The most popular way to access a trial license is through the website, which can be done by following these directions:

  1. Begin by visiting the website and logging into your Blue Marble account. 
    1. If you don’t have an account, make one before proceeding 
    2. If you can’t remember your password, you can reset it here 
  2. Once you have logged into your account, navigate to the download page
    1. For Global Mapper, click here
    2. For Geographic Calculator, click here 
  3. Select the product you want to try and download it
  4. Once the download is complete, install the software and a registration dialog box will appear
  5. Enter your Blue Marble Geographics account information and click the Next button
  6. Select the Trial license type. 
  7. Select any additional products for which you would like to request a trial license, such as the Lidar Module
  8. Press Continue to activate the trial license. 

The second way to receive a trial license is via email, using offline activation. Although you will still need to download the software, you can email authorize@bluemarblegeo.com to request the actual license file. The licensing team will help walk you through the activation process.  

If you have any questions about obtaining a trial license, please email authorize@bluemarblegeo.com