The method to measure and then draw the land relies on a few basic trigonometry ideas (don’t worry, no calculations required).
Take your 30-metre surveying tape and pin one end into the ground and lay out the tape to its full length.
You will want to place the tape in a relatively central location and where the tape can be laid in a straight line. It is very important the tape is straight.
Take out your notepad, make a fresh page and draw a diagram as per the image below. The basic premise of this diagram is that the centre line represents the tape measure and the left-hand side is to the left of the tape and the right is to the right of the tape. This is what we will be using to record our measurements.
The next step is to simply start measuring and recording data. The basic idea here is to measure a single location using 2 measurements from 2 different locations on the long 30-metre tape (see the diagram). Try and maximise the angle between the 2 measurements, the smaller the angle, the less accurate you are likely to be.
When measuring the points you need to ensure you are taking 2 bits of key information.
- The length along the 30-metre tape you are measuring from.
- The distance from the point to the point you are measuring.
To record this you will use your notepad as per the example below.
Continue to take as many measurements from the line and to the points as you require. You may need to utilise another page or 2 depending on how dense the survey area is.
Take care with the 30 metre main tape to ensure it remains straight.