Selecting the Load DTM File allows the user to load a DTM file. This browsing window is shown in Figure 1. After clicking on Open button, the DTM File is loaded as shown in Figure 2.

Figure 1 DTM browsing window.

Figure 2 DTM file loaded.

When a DTM file loaded, a tool set of Pointer Utilities appears on side menu as shown in Figure 3. These are described in the following sections.

Figure 3 Pointer utilities.

Post Elevations

Selecting the Post Elev's pointer utility displays the coordinates and elevation value (Z) of a specific point on workspace in the yellow text box by RMC as shown in Figure 4.

Figure 4 Point elevation utility.

Edit Elevation

When the Edit Elevation function is selected a frame appears which allow the user modify elevation value (Z) of a specific point on workspace by entering a number or using operators on the white box as shown in Figure 5.

Figure 5 Elevation adjustment factor.

Digitize Points

The Digitize points function allows the user digitize a series of points by RMC continuously. The X and Y values are recorded and can be pasted to a text file as shown in Figure 6 and Figure 7.

Figure 6 Digitize points utility.

Figure 7 Digitized points.

None

The None option allows the user to end all previous pointer utilities.