I am totally new to doing this using QGIS. Can anyone help me to produce the following, which I believe is commonly known as a ZTV analysis.
I am running Wein and have the Viewshed Analysis plugin loaded. I have downloaded the asc data for a single UK grid square, extracted it, converted it and then saved it as a Geotiff.
This is what I have been asked for:
We used the free 50 mm Digital Terrain Model (DTM) from the OS, gave the proposed development a height e.g. approximately 8 metres for a 2 storey house within the site boundary and viewing height of approximately 2 metres. We would sometimes ‘screen’ the ZTV by introducing shape files for areas of woodland and settlement
I really do not have a clue where to start.