Leica TPS - System 1000 1000Z01 Manuel D’Utilisation

© Leica

TPS-System 1000 Programs-2.3.1en

Hidden Point

Introduction

This manual describes the "HIDDEN POINT" program
of the TPS SYSTEM 1000 instruments.

The program allows measurements to a point that is not
directly visible using a special hidden-point rod. The
data for the hidden point are calculated from
measurements to the prisms mounted on the pole with a
known spacing and a known length of pole. The pole
still may be kept slope.
"Measurements" 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. The rod you are using is defined in the
"CONFIGURATION" of the program. Here, you enter
the length of the rod, spacing between reflectors, and
the prism constant. Refer to Figure on page 112, which
illustrates  a hidden-point rod with three reflectors.

If the hidden-point rod you are using has three
reflectors, the program calculates coordinates for the
hidden point from three combinations:

In the case of motorized theodolites, you can configure
the program in such a way, that it points the telescope at
the third reflector automatically after the first two
reflectors have been measured.