Cartography · Studio

Loch Treig in 3d

a 3d view of an old topographic map, showing both the mountainous terrain and the bathymetry
Loch Treig in 3d: Loch Treig from Murray & Pullar's Bathymetrical Survey of Fresh-Water Lochs (1897-1909) draped over the topo-bathy surface created from their soundings, and surface topography from Copernicus Global DEM. View is looking north-west ish towards Stob Coire Sgriodain.
projectionOSGB. EPSG:27700. But 3d
toolsQGIS for digitzing the original soundings and contours; python for creating the triangular mesh and interpolating; Blender for draping the original map over the DEM
dataTopography: Copernicus WorldDEM-30 (ESA, 2026); Bathymetry: Murray & Pullar Bathymetrical Survey of Fresh-Water Lochs (1897-1909) accessed from the georeferenced maps page of the National Library of Scotland. Reproduced with the permission of the National Library of Scotland (CC-BY).
commentsPoorly rendered in Blender, because I am new to Blender, and was struggling with the camera settings. For more details see this post
date30/03/2026