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New Field Book

Open a new, blank spreadsheet for Error Figure data.

Error Figure data can be typed directly into the spreadsheet. Each line of the spreadsheet represents either a set-up station or an observation.

Each type of entry has different requirements. All entries require at least a fieldbook indicator code (see below) and a setup point name or an origin point name. Observations require, in addition a target point name, either a horizontal distance or a horizontal angle reading, depending on the type of observation.

Permissible field book indicator codes are:

• { - Setup station

• * - Horizontal distance

• % - Direction

The order of the data fields is:

1. Observation code

2. Origin station

3. Target station

4. Reading

An example of a field book follows:

{,M11
%,M11,M10,122.3847
*,M11,M10,108.190
*,M11,M12,387.780
%,M12,M11,39.5725
%,M11,M13,71.5712
*,M13,M11,439.550

The '{' on the first line is used to denote a set-up station, and provides the name of the point to be fixed. The following lines consist of the observations to be used for the calculations.

Observations can be in any order. Two types of observations are allowed, distances (reduced to the horizontal) and denoted by ' *'; or directions, either outward (unoriented) or inward (oriented) and denoted by '%'.

Where both a distance and a direction have been observed, they must be entered in the fieldbook as two separate observations.