LasSaver.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
// ##########################################################################
// #                                                                        #
// #                CloudViewer PLUGIN: LAS-IO Plugin                      #
// #                                                                        #
// #  This program is free software; you can redistribute it and/or modify  #
// #  it under the terms of the GNU General Public License as published by  #
// #  the Free Software Foundation; version 2 of the License.               #
// #                                                                        #
// #  This program is distributed in the hope that it will be useful,       #
// #  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
// #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
// #  GNU General Public License for more details.                          #
// #                                                                        #
// #                   COPYRIGHT: Thomas Montaigu                           #
// #                                                                        #
// ##########################################################################
 
#include "LasScalarFieldSaver.h"
#include "LasWaveformSaver.h"
 
// qCC_db
#include <FileIOFilter.h>
 
// LASzip
#include <laszip/laszip_api.h>
 
// System
#include <memory>
 
class ccPointCloud;
 
class LasSaver
{
  public:
    struct Parameters
    {
        std::vector<LasScalarField>      standardFields;
        std::vector<LasExtraScalarField> extraFields;
        bool                             shouldSaveRGB{false};
        bool                             shouldSaveWaveform{false};
        uint8_t                          versionMajor{1};
        uint8_t                          versionMinor{0};
        uint8_t                          pointFormat{0};
        CCVector3d                       lasScale;
        CCVector3d                       lasOffset;
    };
 
    LasSaver(ccPointCloud& cloud, Parameters& parameters);
    ~LasSaver() noexcept;
 
    CC_FILE_ERROR open(const QString filePath);
 
    CC_FILE_ERROR saveNextPoint();
 
    bool savesWaveforms() const;
 
    QString getLastError() const;
 
  private:
    void initLaszipHeader(const Parameters& parameters);
 
  private:
    unsigned                          m_currentPointIndex{0};
    ccPointCloud&                     m_cloudToSave;
    laszip_header                     m_laszipHeader{};
    laszip_POINTER                    m_laszipWriter{nullptr};
    LasScalarFieldSaver               m_fieldsSaver;
    bool                              m_shouldSaveRGB{false};
    std::unique_ptr<LasWaveformSaver> m_waveformSaver{nullptr};
    laszip_point*                     m_laszipPoint{nullptr};
};