Leica 1000Z01 user manual Cogo

COGO

Introduction

This manual describes the "COGO" program of the TPS SYSTEM 1000 theodolite series.

The following provides a general overview of the individual COGO functions.

The "Inverse" routine computes the direction and distance between two points.

The "Traverse" routine computes a new coordinate point given a direction and distance from a known point (Polar plotting).

The "Intersections" routine computes:

•Bearing-Bearing intersections,

•Bearing-Distance intersections or

•Distance-Distance intersections.

The function "Offsets" consists of the following subfunctions:

•"Distance point straight line"

Calculates the difference in length/abscissa and the lateral deviation/ordinate with reference to a basis line emanating from a known point.

•"Orthogonal point calculation"

A new point can be calculated which emanates from a basis line using the difference in length/abscissa and the lateral deviation/ordinate.

The "Point Arc" routine computes a radius point given any three points.

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