Land Surveyor Forum

Prior to preparing a Quadrant Bearing version of FreeCOGO I need your advice.
How is title survey data shown on cadastral plans in your state?

What rounding, if any, do you apply to data on plans?

As an example, in the State of Victoria, Australia the following apply:-
(Metric)
Lengths in Metres
Less than 500 metres - Correct to the nearest 0.01 metre, except where circumstances require greater precision,then correct to the nearest 0.005 metre
500 metres and up to 5000 metres - Correct to the nearest 0.01 metre
Over 5000 metres - Correct to the nearest 0.1 metre

Bearings of Lengths
Less than 30 metres - Correct to the nearest minute of arc
Over 30 metres - Correct to the nearest 10 seconds of arc

Areas
Less than 100 square metres - Square metres - Correct to the nearest 0.1 square metre
100 square metres and less than 1 hectare - Square metres - Correct to the nearest square metre
1 hectare and up to 10 000 hectares - Hectares - Correct to four significant figures
Over 10 000 hectares - Square kilometres - Correct to four significant figures

What data do you show on arcs on survey plans?
In Victoria we show:-

Radius
------- (Bdy)
Arc length
Chord distance
Chord bearing

Do you also show Arc (Delta) angle?

Thanks in advance.

Barry Graham

Melbourne, Australia