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Shift the levels by one, not by divide by two

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This commit is contained in:
Martin Tůma 2024-05-22 09:00:51 +02:00
parent ff25f02965
commit 09d0b281c2
1 changed files with 1 additions and 1 deletions
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src/map/IMG/vectortile.cpp
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@ -279,7 +279,7 @@ void VectorTile::elevations(const RectC &rect, const Zoom &zoom,
// Shift the DEM level to get better data then what the map defines for
// the given zoom (we prefer rendering quality rather than speed). For
// maps with a single level this has no effect.
int level = _dem->level(zoom) / 2;
int level = qMax(0, _dem->level(zoom) - 1);
QList<const DEMTile*> tiles(_dem->tiles(rect, level));
for (int i = 0; i < tiles.size(); i++) {
const DEMTile *tile = tiles.at(i);