The Error figures features adjust a provisionally fixed point that has redundant observations by means of a least squares solution, or a graphical fix of the error figure, or both. A rough fix for the point should be calculated prior to using this routine and usually this will be done under Survey Calculations. The data for the calculation must be provided in the form of a field book.
Control Surveys allow you to perform a least-squares adjustment of a network of 2D points and associated distance and direction observations. You are also given the resultant error statistics.
FLAT TRAVERSE: This function reduces a conventional simple traverse, in which it is assumed that all distance reductions have been carried out separately and that the distances supplied have been reduced to the horizontal. It therefore does not require the entry of the vertical angles unless a height traverse has been incorporated. It can also be used for theoretical calculations, such as cadastral reconstruction, where an adjustment is required.
FULL TRAVERSE: This routine is used to reduce a traverse where the distances provided must be reduced to the horizontal and also require correction for Sea Level, Scale and Temperature. Vertical angles must therefore be supplied in the field book and the average elevation of the traverse and the temperature correction will have to be supplied.
SLOPE TRAVERSE: A slope traverse, using slope distances, can be reduced by incorporating vertical angles.
SPIRIT LEVEL REDUCTIONS: These routines permit the reduction of normal and cross-section spirit levels by the rise and fall method. The data for spirit level reductions must be provided in the form of an ASCII field book file.
Geo-Topo transformation can be used to convert geographical co-ordinates in the form of degrees, minutes and seconds of latitude and longitude, to Y and X coordinates in the project projection in Civil Designer format. An ASCII file is read and another one is written. The converted coordinates can be set relative to any standard line of longitude.