3D View

The 3D View in Global Mapper allows registered users to view gridded elevation data and any overlying raster or vector data in a true perspective 3D manner. In addition, any vector data with associated elevation values can also be displayed in true 3D and videos may be created using the Global Mapper Fly-Through feature. The 3D viewer can also display 3D model formats, and render multiple terrain layers in a stack.

To open the 3D view, select the 3D view button from the Viewer toolbar, or select 3D View... from the View menu.

When selected, the 3D View button displays a window containing a 3D view of the data in the current workspace. The 3D view can show in its own window, or be docked inside of the main application. Any imagery or vector data being drawn on top of the elevation grid(s) in the main Global Mapper view will automatically be draped on top of the elevation data in the 3D View window. If so configured, any 3D vector data will be displayed in space as well.

The following features and tools are available in the 3D View:

Rotating, Moving and Zooming in the 3D View

Display Options

Wire-frame View and Default View

The Wire-frame and Default Views will change between a Wire-frame (TIN) and the Default 3D view.

Show Compass Rose

This option displays a compass on the map. For more settings go to 3D View Configuration.

Show 3D Axis

This option displays a 3D Axis out from the center of the map. For more settings go to 3D View Configuration.

Shortcut to toggle on/ off the pivot axis display: Ctrl+Shift+P

3D View Configuration

This button is used to access the 3D View Properties dialog, which contains options to configure the 3D view settings, including the vertical exaggeration, the water display, background color, 3D vector display, as well as the terrain and draped image resolution. For more information see 3D View Configuration

2D/ 3D Link

To link the 2D and 3D views, select the Link 2D/ 3D views button found on the Global Mapper Viewer Toolbar. This will link the relative panning and zooming of the 3D view when the primary 2D map view is panned or zoomed. The 3D view will also refresh based on any changes to the Overlay Control center, such as loading data, turning on and off layers, or running tools that create new data. The link is turned on by default.

When the link is disabled, the 3D view will not refresh to match changes in the primary 2D map view display until the cursor is over the 3D window. Panning and zooming the 2D view will not change the 3D map display.

Keyboard Shortcut: To refresh the 3D view, use the Ctrl+3 or F5 hot keys in the 3D viewer.

Feature Selection, Measuring and 3D Digitizing Tools

The Selection and Measure Mode tools allow for the selection of vector features in the 3D viewer, and provide options for measuring distances and areas. Right-click with either of these tools to access additional options and settings.   

Digitizer Mode

Activating the Digitizer Mode in the 3D Viewer will enable selection of 3D point, line or area features in the 3D View window.

Keyboard shortcut: Pressing the D key will enable or disable digitizer mode in the 3D view.

 Measure Mode

Activating Measure Mode will allow you to left-click in the 3D View to define a line for distance measurement, or a polygon for area measurement. Right-clicking will end the line or polygon feature to finish the measurement. In the upper left of the 3D View window measurement values will be displayed, right-click to access the 3D View window's Measure Tool menu.

In the 3D View window, the measure tool's cursor will change color depending on whether or not it is snapped. Green is snapped, orange is not snapped. When orange, the measure tool is draped on the terrain to show the corresponding terrain spot for where the cursor is located at '0'.

Note that the Measure tool is linked between 2D and 3D, and selecting either button will enable the tool in both 2D and 3D.

Keyboard shortcut: Pressing the M key will enable or disable measure mode.

Snap Cursor

With snap cursor enabled, the digitizer selection tool will show a point feature indicating the nearest selectable point or vertex if one is nearby. Otherwise the selection cursor will change color to red to indicate when a selection is available.

Vertical Exaggeration

Water Level

Drop Down SkyBox Menu

The drop down menu may be used to set a specific sky texture background or to set a solid background (None). The color of the solid background may be specified in the 3D View Properties dialog.

Fly-Through Videos

Save Image

Selecting this tool will bring up the 3D Screen Capture Options dialog (below), used for saving an image of the 3D view to a JPEG, PNG, TIFF or BMP image format. Additional sizing options are also available.

Full Screen

This button will make the 3D view full screen. For more information about windows see Window Docking