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update to rawtilereader size calculation. Closes #1716

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Micah
2021-08-20 13:21:14 -04:00
parent 37d39868a9
commit 27c270b217
1 changed files with 2 additions and 1 deletions
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modules/globebrowsing/src/rawtiledatareader.cpp
+2 -1
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@@ -188,7 +188,8 @@ int calculateTileLevelDifference(GDALDataset* dataset, int minimumPixelSize) {
}
const int sizeLevel0 = maxOverview->GetXSize();
const double diff = log2(minimumPixelSize) - log2(sizeLevel0);
return static_cast<int>(diff);
const double intdiff = diff >= 0 ? ceil(diff) : floor(diff);
return static_cast<int>(intdiff);
}
/**