163 lines
6.7 KiB
C++
163 lines
6.7 KiB
C++
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2019,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO 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 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//[<] [\ensuremath{<}]
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//[>] [\ensuremath{>}]
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\setcounter{tocdepth}{3}
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\tableofcontents
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1 LasHeader
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*/
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#include "lasheader.h"
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#include <assert.h>
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/*
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1 Implementation of las components
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*/
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bool lasHeader::read(std::ifstream& file){
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file.read(reinterpret_cast<char*>(&signature), 4);
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if( (std::string(signature,4)!="LASF")){
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return false;
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}
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file.read(reinterpret_cast<char*>(&source_id), 2);
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file.read(reinterpret_cast<char*>(&global_Encoding),2);
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file.read(reinterpret_cast<char*>(&project_id1),4);
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file.read(reinterpret_cast<char*>(&project_id2),2);
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file.read(reinterpret_cast<char*>(&project_id3),2);
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file.read(reinterpret_cast<char*>(&project_id4),8);
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file.read(reinterpret_cast<char*>(&major_version),1);
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file.read(reinterpret_cast<char*>(&minor_version), 1);
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file.read(systemIdentifier, 32);
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file.read(generatingSoftware, 32);
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file.read(reinterpret_cast<char*>(&dayOfYear), 2);
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file.read(reinterpret_cast<char*>(&year), 2);
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file.read(reinterpret_cast<char*>(&header_size), 2);
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file.read(reinterpret_cast<char*>(&offset_to_point_data), 4);
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file.read(reinterpret_cast<char*>(&number_of_variable_records), 4);
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file.read(reinterpret_cast<char*>(&point_data_format), 1);
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file.read(reinterpret_cast<char*>(&point_data_length), 2);
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file.read(reinterpret_cast<char*>(&legacy_number_of_points), 4);
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file.read(reinterpret_cast<char*>(
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&legacy_number_of_points_by_return), 20);
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file.read(reinterpret_cast<char*>(&x_scale), 8);
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file.read(reinterpret_cast<char*>(&y_scale), 8);
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file.read(reinterpret_cast<char*>(&z_scale), 8);
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file.read(reinterpret_cast<char*>(&x_offset), 8);
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file.read(reinterpret_cast<char*>(&y_offset), 8);
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file.read(reinterpret_cast<char*>(&z_offset), 8);
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file.read(reinterpret_cast<char*>(&max_x), 8);
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file.read(reinterpret_cast<char*>(&min_x), 8);
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file.read(reinterpret_cast<char*>(&max_y), 8);
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file.read(reinterpret_cast<char*>(&min_y), 8);
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file.read(reinterpret_cast<char*>(&max_z), 8);
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file.read(reinterpret_cast<char*>(&min_z), 8);
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if(major_version==1 && minor_version < 4){
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start_of_waveform_data_packet_record = 0;
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start_of_first_extended_vlr = 0;
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number_of_evlr = 0;
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number_of_point_records = 0;
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memset(reinterpret_cast<char*>(number_of_points_by_return),0,120);
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} else {
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file.read(reinterpret_cast<char*>(
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&start_of_waveform_data_packet_record), 8);
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file.read(reinterpret_cast<char*>(&start_of_first_extended_vlr), 8);
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file.read(reinterpret_cast<char*>(&number_of_evlr), 4);
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file.read(reinterpret_cast<char*>(&number_of_point_records), 8);
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file.read(reinterpret_cast<char*>(&number_of_points_by_return),
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120);
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}
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return true;
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}
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std::ostream& lasHeader::print(std::ostream& out) const{
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out << " ------------ LAS Header -----------------" << std::endl;
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out << "signature: " << std::string(signature,4) << std::endl;
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out << "source_id: " << source_id << std::endl;
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out << "global_Encoding: " << global_Encoding << std::endl;
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out << "project_id1: " << project_id1 << std::endl;
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out << "project_id2: " << project_id2 << std::endl;
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out << "project_id3: " << project_id3 << std::endl;
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for(int i=0;i<8;i++){
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out << "project_id4["<<i<<"]: " << (int)(project_id4[i])<< std::endl;
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}
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out << "major_version: " << (int)major_version << std::endl;
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out << "minor_version: " << (int) minor_version << std::endl;
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out << "systemIdentifier[32]: " << std::string(systemIdentifier,32)
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<< std::endl;
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out << "generatingSoftware[32]: " << std::string(generatingSoftware,32)
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<< std::endl;
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out << "dayOfYear: " << dayOfYear << std::endl;
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out << "year: " << year << std::endl;
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out << "header_size: " << header_size << std::endl;
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out << "offset_to_point_data: " << offset_to_point_data << std::endl;
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out << "number_of_variable_records: " << number_of_variable_records
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<< std::endl;
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out << "point_data_format: " << (int)point_data_format << std::endl;
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out << "point_data_length: " << (int) point_data_length << std::endl;
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out << "legacy_number_of_points: " << legacy_number_of_points
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<< std::endl;
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for(int i=0;i<5;i++){
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out << "legacy_number_of_points_by_return["<<i<<"]: "
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<< legacy_number_of_points_by_return[i] << std::endl;
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}
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out << "x_scale: " << x_scale << std::endl;
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out << "y_scale: " << y_scale << std::endl;
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out << "z_scale: " << z_scale << std::endl;
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out << "x_offset: " << x_offset << std::endl;
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out << "y_offset: " << y_offset << std::endl;
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out << "z_offset: " << z_offset << std::endl;
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out << "max_x: " << max_x << std::endl;
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out << "min_x: " << min_x << std::endl;
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out << "max_y: " << max_y << std::endl;
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out << "min_y: " << min_y << std::endl;
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out << "max_z: " << max_z << std::endl;
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out << "min_z: " << min_z << std::endl;
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if(major_version > 1 || minor_version >= 4){
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out << "start_of_waveform_data_packet_record: "
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<< start_of_waveform_data_packet_record << std::endl;
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out << "start_of_first_extended_vlr: "
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<< start_of_first_extended_vlr << std::endl;
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out << "number_of_evlr: " << number_of_evlr << std::endl;
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out << "number_of_point_records: " << number_of_point_records
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<< std::endl;
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for(int i=0;i<15;i++){
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out << "number_of_points_by_return["<<i<<"]: "
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<< number_of_points_by_return[i] << std::endl;
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}
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}
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out << " ------------ LAS Header END -----------------" << std::endl;
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return out;
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}
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std::ostream& operator<<(std::ostream& out, const lasHeader& header){
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return header.print(out);
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}
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