I am currently using QGIS to try and prepare a series of equally spaced -- along the terrain slopes -- sampling points within various NVC (National Vegetation Classification) sites in the UK. I am using a NVC vegetation dataset which is in vector form; allowing me to select the individual vegetation sites I want to produce points grids for. Previously I have been using the 'regular points' tool however this appears to only create a grid of points in 2D, horizontally. I am however interested in the movement of small mammals across the land and hence want to create a grid of evenly spaced sample points measured across, up and down the terrain; specifically the elevation, to produce a 3D grid of sample points. On the ground, the 'regular points' tool is fine on flat land, but in the hills the points are no longer evenly spaced. I have access to a lot of the OS vector and raster data but I am not sure exactly how best to approach this problem.
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