Topographical canvases

The topographical canvas consists of a set of landmarks spread over the territory of the Métropole de Bordeaux. These points, calculated very precisely in X,Y and Z, are converted into the legal projection plane Lambert 93 — CC45 and appear on MSDS made available to the various stakeholders, in particular through the GIS application canvassed on the Internet. It serves as a reference for surveyors to calibrate field surveys. This dataset represents by a punctual the position of the canvas points and provides all the necessary indications for their use in the field (matricule, coordinates, address...)