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Implement --exhaustive y mode as another database access optimization

This one works best when you have a wide area with low height (e.g. 10000x200x10000)
This commit is contained in:
sfan5
2020-03-28 00:14:47 +01:00
parent 7ff2288627
commit cb8341aeab
4 changed files with 34 additions and 6 deletions

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@@ -108,5 +108,6 @@ scales:
Draw scales on specified image edges (letters *t b l r* meaning top, bottom, left and right), e.g. ``--scales tbr``
exhaustive:
Select if database should be traversed exhaustively or using range queries, available: *never*, *y*, *full*, *auto*
Defaults to *auto*. You shouldn't need to change this, but doing so can improve rendering times on large maps.
| Select if database should be traversed exhaustively or using range queries, available: *never*, *y*, *full*, *auto*
| Defaults to *auto*. You shouldn't need to change this, but doing so can improve rendering times on large maps.
| For these optimizations to work it is important that you set ``min-y`` and ``max-y`` when you don't care about the world below e.g. -60 and above 1000 nodes.