LasMetadata.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                           #
// #                                                                        #
// ##########################################################################
 
struct laszip_header;
class ccPointCloud;
 
#include "LasDetails.h"
#include "LasExtraScalarField.h"
#include "LasVlr.h"
 
// CORE
#include <CVGeom.h>
// LASzip
#include <laszip/laszip_api.h>
 
namespace LasMetadata
{
    constexpr const char X_SCALE[]           = "LAS.scale.x";
    constexpr const char Y_SCALE[]           = "LAS.scale.y";
    constexpr const char Z_SCALE[]           = "LAS.scale.z";
    constexpr const char X_OFFSET[]          = "LAS.offset.x";
    constexpr const char Y_OFFSET[]          = "LAS.offset.y";
    constexpr const char Z_OFFSET[]          = "LAS.offset.z";
    constexpr const char VERSION_MAJOR[]     = "LAS.version.major";
    constexpr const char VERSION_MINOR[]     = "LAS.version.minor";
    constexpr const char POINT_FORMAT[]      = "LAS.point_format";
    constexpr const char GLOBAL_ENCODING[]   = "LAS.global_encoding";
    constexpr const char PROJECT_UUID[]      = "LAS.project_uuid";
    constexpr const char SYSTEM_IDENTIFIER[] = "LAS.system_identifier";
    constexpr const char VLRS[]              = "LAS.vlrs";
    constexpr const char EXTRA_FIELDS[]      = "LAS.extra_fields";
 
    void SaveMetadataInto(const laszip_header& header, ccPointCloud& pointCloud, const std::vector<LasExtraScalarField>& extraScalarFields);
    bool LoadVlrs(const ccPointCloud& pointCloud, LasVlr& vlr);
    bool LoadScaleFrom(const ccPointCloud& pointCloud, CCVector3d& scale);
    bool LoadOffsetFrom(const ccPointCloud& pointCloud, CCVector3d& offset);
    bool LoadLasVersionFrom(const ccPointCloud& pointCloud, LasDetails::LasVersion& version);
    bool LoadGlobalEncoding(const ccPointCloud& pointCloud, uint16_t& outGlobalEncoding);
    bool LoadProjectUUID(const ccPointCloud& pointCloud, laszip_header& header);
} // namespace LasMetadata