Our models are built by photogrammetry using the best available aerial or satellite imagery. We build an elevation grid with a resolution of between 1 and 10m, with the vast majority at 5m or better. This means that we map the height of the ground surface every 5 meters. The result is an extremely high resolution model – between 10x and 30x the resolution of most mainstream 3D maps available today – which shows the true shape of the terrain far more realistically than ever before.
Our imagery varies between 25cm and 1m imagery (meaning that a single pixel covers 25cm – 1m on the ground). While most maps use colour imagery, we use monochrome imagery in some of our winter maps – this often provides better clarity and detail in the snow texture.