Measuring Total Lengths.

It is often useful to measure the travel distance between two points in the cave. Since passages often curve around, you cannot measure travel distance by measuring the straight-line distance between two points. For this reason, the Viewer allows you to measure distances one shot at a time and total the result.

Measuring Distances. To measure the distance along a curving passage carryout the following steps:

1. Press the "Clear" button to clear the total distance.

2. Enable the "Alternate Cursor" option.

3. Move the cursor to the starting point

4. Click-on the "Near Station" button.

5. Move the cursor to the next station.

6. Click-on the "Near Station" button again.

7. Press the "Add" button.

Repeat steps 5, 6, and 7 until you reach the destination. The Total displayed will be the travel distance between the two points.