4 ms·

Can anyone yield some insight into the process of producing x/y/z web mercator .png DEM map tiles from Jonathan de Ferranti's [1] data? His data is in .hgt form

Can anyone yield some insight into the process of producing x/y/z web mercator .png DEM map tiles from Jonathan de Ferranti's [1] data? His data is in .hgt format. [1] http://www.viewfinderpanoramas.org/dem3.html http://www.viewfinderpanoramas.org/dem3.html

mandiantBob 5y ago
The best articles for this are [1] (google translate it) and [2]. In [1], the author uses .asc files while in [2], .img files are used. You can treat these files as basically the same as .hgt but remember to reproject the data as different DEM sources uses slightly different projections. [1] https://makina-corpus.com/sig-webmapping/representation-des-modeles-numeriques-de-terrain-sur-le-web-ombrage-et-3d https://makina-corpus.com/sig-webmapping/representation-des-... [2] https://github.com/nst-guide/terrain https://github.com/nst-guide/terrain