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Fix shapefile z6 index #904

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Fix shapefile z6 index #904

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4 changes: 2 additions & 2 deletions src/shp_mem_tiles.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -82,7 +82,7 @@ bool ShpMemTiles::mayIntersect(const std::string& layerName, const Box& box) con
uint32_t z6x = x / (1u << (spatialIndexZoom - CLUSTER_ZOOM));
uint32_t z6y = y / (1u << (spatialIndexZoom - CLUSTER_ZOOM));

auto& bitvec = sparseLayerVector[z6x * CLUSTER_ZOOM + z6y];
auto& bitvec = sparseLayerVector[z6x * CLUSTER_ZOOM_WIDTH + z6y];

uint32_t divisor = 1u << (spatialIndexZoom - CLUSTER_ZOOM);
uint64_t index = 2u * ((x - z6x * divisor) * divisor + (y - z6y * divisor));
Expand Down Expand Up @@ -214,7 +214,7 @@ void ShpMemTiles::StoreGeometry(
uint32_t z6x = x / (1u << (spatialIndexZoom - CLUSTER_ZOOM));
uint32_t z6y = y / (1u << (spatialIndexZoom - CLUSTER_ZOOM));

uint32_t sparseIndex = z6x * CLUSTER_ZOOM + z6y;
uint32_t sparseIndex = z6x * CLUSTER_ZOOM_WIDTH + z6y;
auto& bitvec = sparseLayerVector[sparseIndex];

if (bitvec.empty())
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