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Use Viewfinder Panoramas 1 arc second DEM data for New Zealand #256

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telephono
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Viewfinder Panoramas provides 1 arc second DEMs for New Zealand.
Have a look at the Coverage Map

@telephono
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telephono commented May 24, 2024

I could also add the missing tiles for Europe and North America, if you're interested. I've already done the locally, altough there are probably better sources for these regions than Viewfinder Panoramas?

But I remember there are holes in the data for Europe for Poland & Czech Republic...

@w8sl
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w8sl commented May 25, 2024

1" for New Zealand only or all regions with a possibility to switch between 3" and 1" is working. 1" as default is less optimal, as there are problems with some tiles.

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telephono commented May 25, 2024

Do we have a list of known tiles with problems? Then we could override these tiles individually.
I found the tile -42+174 has no elevation for the northern island (the Wellington side). But that seems to be the case for both 1" and 3" resolutions.

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w8sl commented May 25, 2024

I have done only some random tests with a complete 1" dataset. Partially flat mesh in tile: +38-010 and +43 +016. (just shouldn't load as 25 mb files maybe?) There may be some tiles around Baltic Sea with same problem.
1.40 coastline in +47 +008 seems broken.
Everything is ok with 3"
I like it as my base setup.
AO developers may know better, as they have build tiles for the whole planet with O4XP.

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Yes, the 1" resolution data in Europe is full of holes. Not all countries have 1" data in the Viewfinder Panoramas sets.
But New Zealand seems to be fine except -42+174 which has missing data in the 1" set. I will add an exclusion for this tile...

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w8sl commented Jun 28, 2024

See my comment:
#226 (comment)

@shred86
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shred86 commented Jun 30, 2024

@w8sl does #272 fix this issue? In other words, is this PR necessary with #272? I'm assuming yes by looking at it but just wanted to make sure since I'm adding both changes to my forked version.

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w8sl commented Jun 30, 2024

@shred86 The comment was done before #272 as I was wandering a bit, if it all may be done as one PR, but finally went with own, simplified PR.
1" DEM elevation data for NZ and North America should be ok. There are problems with some 1" DEM tiles in Europe, while 3" DEM is ok. For example: +47+008

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3 participants