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).
64 lines
2.4 KiB
C++
64 lines
2.4 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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#include <fstream>
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#include <vector>
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#include "OctantInfo.hpp"
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#include "../untwine/Common.hpp"
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namespace untwine
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{
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namespace bu
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{
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void OctantInfo::mergeSmallFiles(const std::string tempDir, size_t pointSize)
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{
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std::string baseFilename = key().toString() + "_merge.bin";
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std::string filename = tempDir + "/" + baseFilename;
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std::ofstream out(filename, std::ios::binary | std::ios::trunc);
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if (!out)
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throw FatalError("Couldn't open temporary merge file '" + filename + "'.");
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int totalPoints = 0;
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auto it = m_fileInfos.begin();
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while (it != m_fileInfos.end())
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{
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FileInfo& fi = *it;
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int numPoints = fi.numPoints();
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std::vector<char> buf(1500 * pointSize);
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if (numPoints < 1500)
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{
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size_t bytes = numPoints * pointSize;
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filename = tempDir + "/" + fi.filename();
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std::ifstream in(filename, std::ios::binary);
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if (!in)
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throw FatalError("Couldn't open file '" + filename + "' to merge.");
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in.read(buf.data(), bytes);
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out.write(buf.data(), bytes);
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totalPoints += numPoints;
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it = m_fileInfos.erase(it);
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}
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else
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it++;
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}
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// Stick a new file info for the merge file on the list.
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// If there were no file infos to merge, then don't add the file because we'll end up
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// with a 0-sized file that we try to map and that will blow up.
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if (totalPoints > 0)
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m_fileInfos.emplace_back(baseFilename, totalPoints);
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}
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} // namespace bu
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} // namespace untwine
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