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54 lines
1.6 KiB
C++
Executable File
54 lines
1.6 KiB
C++
Executable File
#include "drape_frontend/tile_utils.hpp"
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#include "indexer/scales.hpp"
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#include "geometry/mercator.hpp"
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#include "base/assert.hpp"
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#include "base/stl_helpers.hpp"
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namespace df
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{
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CoverageResult CalcTilesCoverage(m2::RectD const & rect, int targetZoom,
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std::function<void(int, int)> const & processTile)
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{
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ASSERT_GREATER(targetZoom, 0, ());
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double const rectSize = mercator::Bounds::kRangeX / (1 << (targetZoom - 1));
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CoverageResult result;
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result.m_minTileX = static_cast<int>(floor(rect.minX() / rectSize));
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result.m_maxTileX = static_cast<int>(ceil(rect.maxX() / rectSize));
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result.m_minTileY = static_cast<int>(floor(rect.minY() / rectSize));
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result.m_maxTileY = static_cast<int>(ceil(rect.maxY() / rectSize));
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if (processTile != nullptr)
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{
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for (int tileY = result.m_minTileY; tileY < result.m_maxTileY; ++tileY)
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for (int tileX = result.m_minTileX; tileX < result.m_maxTileX; ++tileX)
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processTile(tileX, tileY);
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}
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return result;
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}
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bool IsNeighbours(TileKey const & tileKey1, TileKey const & tileKey2)
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{
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return !((tileKey1.m_x == tileKey2.m_x) && (tileKey1.m_y == tileKey2.m_y)) &&
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(abs(tileKey1.m_x - tileKey2.m_x) < 2) &&
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(abs(tileKey1.m_y - tileKey2.m_y) < 2);
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}
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int ClipTileZoomByMaxDataZoom(int zoom)
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{
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return std::min(zoom, scales::GetUpperScale());
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}
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TileKey GetTileKeyByPoint(m2::PointD const & pt, int zoom)
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{
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ASSERT_GREATER(zoom, 0, ());
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double const rectSize = mercator::Bounds::kRangeX / (1 << (zoom - 1));
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return TileKey(static_cast<int>(floor(pt.x / rectSize)),
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static_cast<int>(floor(pt.y / rectSize)), zoom);
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}
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} // namespace df
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