My goal is to find house sketches in archaeological data. I have a shapefile from an excavation where all the archaeological features, mainly pits are measured as polygons. The polygons have different sizes and shapes, but are mainly roundish.
The assumption is, that houses in prehistory consist of pits that stand in line and have roughly the same distance to another or make up a rectangle or are symmetrically arranged.
Is there a way to highlight pits/features in the data that match the above criteria so that e.g.
- All the features that build up a rectangle or construct a right angle are marked or the rectangles/right angles are drawn to another layer?
- All the features that are symmetrically arranged are selected or marked in the same colour?
- All the features where the distances in between the features are similar (e.g. in between a range form 180 cm to 220 cm) are selected?
I cleaned the Data and selected some features that are likely to be Postholes. After that I started to change the features with the tool centroid to points. The idea is now to connect all the dots with lines and select the Houses via the length of the lines. I tried to connect the dots buy using the Delaunay triangulation and convert the polygons into lines afterwards. Sadly I don't get only single lines but also i have lines that have still a triangular form.
Is it possible to convert the polygons in a way that I have only lines without the vertices?