Adding a Navigation Map to the Navigation Map Window

To add new maps to the Navigation Map window:

1.      On the Navigation tab, in the Map group, click Map. The Navigation Map Settings dialog box is displayed.

navmap2.gif

Navigation Map Settings

2.      Click Add. The Open dialog box is displayed.

3.      Browse to the required map and click Open.

Note:       The Navigation Map supports the same file formats and servers as are supported for raster layers. SeeLoading Raster Layers” in the “Imagery and Elevation Layers” chapter for information. It is strongly recommended to use a compressed format (JPEG or GIF) and not BMP, for Navigation Maps. This ensures maximum performance with slower Internet connections.

4.      In the Navigation Map Settings dialog box, define the property sheet parameters as required.

5.      If the map is not referenced to the coordinate system of the terrain, do either of the following:

§  Reprojection - When the map is referenced to a different coordinate system than the coordinate system of the terrain. SeeReprojecting a Navigation Map” in this chapter for further information.

§  Manual Adjustment - When the map is not referenced to any coordinate system. SeeAdjusting a Navigation Map Manually” in this chapter for further information.

Reprojecting a Navigation Map

When the navigation map is referenced to a coordinate system, which is different from the terrain coordinate system, the map must be reprojected.

To reproject a map:

1.      On the Navigation tab, in the Map group, click Map. The Navigation Map Settings dialog box is displayed.

2.      In the Maps section, select the required map.

3.      In the Projection section of the property sheet, in the Reproject Source, select Yes to enable reprojection of the source.

4.      In the Coordinate System field, click Set. The Coordinate System dialog box opens. Enter the source file’s coordinate system information. SeeCoordinate System Dialog Box” in the “Basic Concepts” chapter for information.  

5.      Click OK.

Adjusting a Navigation Map Manually

Adjusting a navigation map manually is required when the navigation map is not referenced to any coordinate system.

The manual adjustment is performed by pairing map locations with their terrain counterparts.

To manually adjust a navigation map, do the following:

1.      On the Navigation tab, in the Map group, click Map. The Navigation Map Settings dialog box is displayed.

2.      In the Maps section, select the required map.

3.      In the Imagery section of the property sheet, in the Manual Adjustment field, click Set. The Navigation Map Settings dialog box is minimized.

Note:       If you want to restore the Navigation Map Settings dialog box, double-click its title bar.

Add Map Tie Point4.      Enter the first map point by right-clicking on the map and selecting from the shortcut menu.

Add Terrain Tie Point5.      Enter the matching Terrain point by right-clicking in the 3D Window and selecting from the shortcut menu.

6.      Repeat steps 4 and 5 for the second and third location matches. The Navigation Map Settings dialog box is restored. Click OK to set the terrain points and close the dialog box.