In FSX, a mesh is a horizontal grid of the Earth’s surface for supporting the numerical description of the relief. The smaller the grid, the finer terrain relief will be. The global mesh in FSX has a 4.8 km resolution. Europe regions have improved resolution with a 76m mesh resolution. Our HD mesh “whole Europe” is a 19m resolution. NEXTMesh EUROPE – Domestic products at Ultra High Definition are designed with the very best data currently available which is a 5m grid allowing the finest restitution.
On the other hand, the quality of a mesh can also be measured by its vertical resolution. That is, the precision of measured elevation of each point of the grid. Basic FSX has a vertical resolution of 1m. Our data is accurate to less than 10cm.
Finally, the data have to be compiled to be usable by FSX. They are resampled according FSX world grid index system called LOD. This can lead to abuses (see below). Our Ultra HD products are resampled with 4.75m resolution and a vertical accuracy of 12.5cm. Compression rates are optimized to reduce files sizes and preserve data.
Also the files are divided in areas of 0.5° x 1° to optimize the memory occupation and loading time.
- Spain & Portugal – 591 000 km²
- Mesh résolution 4.75m – Altitude accuracy < 10cm