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Can elevation data files be in SRTM subfolders?

Andrew Heard shared this question 4 years ago
Answered

HGT files are normally stored in /Locus/data/srtm. Can I move a subset of the HGT files into their own subfolders? For example to organize the files by country? Please also confirm - can each HGT file be inside a ZIP file? I am preparing an overseas cycle tour and using the higher resolution Open Data Portal HGT files. Each file is stored in its own ZIP file.

Replies (4)

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Hello Andrew,

nothing like this is currently possible. Direct support for "zip" files sounds interesting anyway no and no ... all files currently have to be directly in SRTM directory in extracted version.

Menion

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Thanks for clarifying Menion. I have an issue with the HGT files from Open Data Portal website - each one is inside its own ZIP file, and so appears (unless I create some script) I have to manually unzip each file. For example - 99 ZIP files for France, 87 for Spain.

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Understand. Question is: do you really need these files? Aren't HGT files provided by Locus Map precise enough? They are 3', so nothing special, on the second side they are optimized from few sources, they have filled holes and fixes some problems that appear in them. Petr knows more about it, but I just wanted to say that they are well usable :).

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Thanks for pointing it out. You are probably right. I had thought the higher resolution HGT files would lead to more accurate gradients calculated for any route, which may matter a lot in mountainous terrain. But of course, this is done by BRouter & the elevations inside RD5 files (not HGT), so it probably makes no difference/ wasting my time right? And for the recorded track my phone has a pressure sensor which has proved far better than previous method of elevation recording.

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