mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-23 00:02:38 -05:00
1513f0ab93
We are now using the code from "qgis" branch: https://github.com/hobu/untwine/tree/qgis It is in sync with "main" branch of untwine as of today, just with a couple of small patches to make it work with PDAL older than 2.4. The new version of untwine includes: - indexing to COPC (in addition to EPT) - fixes to bugs that were reported in QGIS - error reporting Untwine now also directly links to lazperf library (in addition to PDAL).
77 lines
2.3 KiB
C++
77 lines
2.3 KiB
C++
/*****************************************************************************
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* Copyright (c) 2021, Hobu, Inc. (info@hobu.co) *
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* *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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****************************************************************************/
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#pragma once
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#include <unordered_map>
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#include "Stats.hpp"
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#include "../untwine/FileDimInfo.hpp"
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#include "../untwine/VoxelKey.hpp"
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#include <lazperf/lazperf.hpp>
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#include <lazperf/vlr.hpp>
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namespace untwine
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{
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struct BaseInfo;
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namespace bu
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{
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class CopcSupport
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{
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public:
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struct Hierarchy
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{
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uint64_t offset;
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int32_t byteSize;
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int32_t pointCount;
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};
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using CountMap = std::unordered_map<VoxelKey, int>;
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using Entries = std::vector<std::pair<VoxelKey, Hierarchy>>;
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CopcSupport(const BaseInfo& b);
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uint64_t newChunk(const VoxelKey& key, int32_t size, int32_t count);
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void updateHeader(const StatsMap& stats);
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void writeHeader();
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void writeChunkTable();
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void writeHierarchy(const CountMap& counts);
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private:
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const BaseInfo& m_b;
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std::ofstream m_f;
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lazperf::header14 m_header;
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lazperf::copc_info_vlr m_copcVlr;
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lazperf::laz_vlr m_lazVlr;
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lazperf::eb_vlr m_ebVlr;
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lazperf::wkt_vlr m_wktVlr;
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std::vector<lazperf::chunk> m_chunkTable;
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uint64_t m_chunkOffsetPos;
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uint64_t m_pointPos;
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std::unordered_map<VoxelKey, Hierarchy> m_hierarchy;
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int extraByteSize() const;
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void addEbFields();
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int numExtentItems() const;
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void setExtentsVlr(const StatsMap& stats);
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Hierarchy emitRoot(const VoxelKey& root, const CountMap& counts);
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void emitChildren(const VoxelKey& root, const CountMap& counts,
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Entries& entries, int stopLevel);
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};
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} // namesapce bu
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} // namesapce untwine
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