Hidden Point; Overview - Leica TPS1200 series Technical Reference Manual

Hidden Point

41
41.1
Description
Hidden point rod
Hidden Point

Overview

Hidden points cannot be measured directly by TPS. This is because they are not directly
visible.
• A hidden point can be calculated from measurements to prisms mounted on a hidden
point rod with a known spacing and a known length of the hidden point rod. The hidden
point rod may be held at any angle, as long as it is stationary for all measurements.
• Measurements for the hidden point are calculated as if the hidden point was observed
directly. These calculated measurements can also be recorded.
• The hidden point rod can have either two or three reflectors. Refer to "41.3 Configuring
Hidden Point" for information on configuring the hidden point rod.
• If three reflectors are used the average will be calculated.
The reflectors on the hidden point rod are also called auxiliary points after they have been
measured.
TPS1200 930