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Author Topic: Terrain  (Read 865 times)

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Stainless

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Re: Terrain
« Reply #12 on: June 11, 2018, 02:03:57 AM »

I am looking at it.

The data is a lot lower resolution than the terrain data, but I think I can use it for the pallete map.

At least to identify water more accurately
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Stainless

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Re: Terrain
« Reply #13 on: June 12, 2018, 04:42:53 AM »

So looking at the data in detail, the bathometric SRTM file covers 40 degrees of longitude and 50 degrees of latitude, giving me a 120 by 120 array of data per 1 degree cell.

This means I have a 2 by 2 array per 1 minute texture tile.

I think this means I can accurately detect open water and coastline.
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Pursuivant

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Re: Terrain
« Reply #14 on: June 12, 2018, 01:05:25 PM »

Glad that the data sort of helped, even if it wasn't a perfect fix.

I've done a bit of further research on bathymetric data sets and data resolution levels are all over the place, with 1-2 meter resolutions for a few coastal areas to up to 30 arc seconds for more distant areas.

An alternate source of bathymetric data which might be helpful is:

https://www.bodc.ac.uk/data/hosted_data_systems/gebco_gridded_bathymetry_data/

I'll keep looking for better data sets, particularly for coastal areas, but I don't think that there will be any one data set which has everything. Detailed bathymetric maps for coastal areas might need to be a follow-up project for someone else to do, as long as you make it easy to port more detailed maps into the simulation.
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