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// $Id$
//
// (C) Copyright Mateusz Loskot 2008, mateusz@loskot.net
// Distributed under the BSD License
// (See accompanying file LICENSE.txt or copy at
// http://www.opensource.org/licenses/bsd-license.php)
//
#include <liblas/laswriter.hpp>
#include <liblas/lasreader.hpp>
#include <liblas/lasheader.hpp>
#include <liblas/laspoint.hpp>
#include <liblas/cstdint.hpp>
#include <liblas/liblas.hpp>
#include <tut/tut.hpp>
#include <fstream>
#include <string>
#include <cstdio>
#include "liblas_test.hpp"
#include "common.hpp"
namespace tut
{
struct laswriter_data
{
std::string tmpfile_;
std::string file10_;
laswriter_data() :
tmpfile_(g_test_data_path + "//tmp.las"),
file10_(g_test_data_path + "//TO_core_last_clip.las")
{}
~laswriter_data()
{
// remove temporary file after each test case
int const rc = std::remove(tmpfile_.c_str());
ensure_equals(rc, 0);
}
};
typedef test_group<laswriter_data> tg;
typedef tg::object to;
tg test_group_laswriter("liblas::LASWriter");
// Test user-declared constructor
template<>
template<>
void to::test<1>()
{
// Create new LAS file using default header block
{
std::ofstream ofs;
ofs.open(tmpfile_.c_str(), std::ios::out | std::ios::binary);
// LAS 1.2, Point Format 0
liblas::LASHeader header;
liblas::LASWriter writer(ofs, header);
ensure_equals<std::size_t>(writer.GetVersion(), liblas::eLASVersion12);
liblas::LASHeader const& hdr_default = writer.GetHeader();
test_default_header(hdr_default);
}
// Read previously created LAS file and check its header block
{
std::ifstream ifs;
ifs.open(tmpfile_.c_str(), std::ios::in | std::ios::binary);
liblas::LASReader reader(ifs);
ensure_equals<std::size_t>(reader.GetVersion(), liblas::eLASVersion12);
liblas::LASHeader const& hdr_default = reader.GetHeader();
test_default_header(hdr_default);
}
}
// Test WritePoint method
template<>
template<>
void to::test<2>()
{
{
std::ofstream ofs;
ofs.open(tmpfile_.c_str(), std::ios::out | std::ios::binary);
// LAS 1.1, Point Format 0
liblas::LASHeader header;
liblas::LASWriter writer(ofs, header);
liblas::LASPoint point;
// Write 1st point
point.SetCoordinates(10, 20, 30);
point.SetIntensity(5);
point.SetReturnNumber(1);
point.SetNumberOfReturns(1);
point.SetScanDirection(1);
point.SetFlightLineEdge(1);
point.SetClassification(7);
point.SetScanAngleRank(90);
point.SetUserData(0);
point.SetPointSourceID(1);
writer.WritePoint(point);
// write 2nd point
point.SetCoordinates(40, 50, 60);
point.SetPointSourceID(2);
writer.WritePoint(point);
// write 3rd point
point.SetCoordinates(70, 80, 90);
point.SetPointSourceID(3);
writer.WritePoint(point);
}
// Read previously create LAS file with 3 point records
{
std::ifstream ifs;
ifs.open(tmpfile_.c_str(), std::ios::in | std::ios::binary);
liblas::LASReader reader(ifs);
liblas::LASPoint point; // reusable cache
// read 1st point
reader.ReadNextPoint();
point = reader.GetPoint();
ensure_distance(point.GetX(), 10.0, 0.1);
ensure_distance(point.GetY(), 20.0, 0.1);
ensure_distance(point.GetZ(), 30.0, 0.1);
ensure_equals(point.GetIntensity(), 5);
ensure_equals(point.GetReturnNumber(), 1);
ensure_equals(point.GetNumberOfReturns(), 1);
ensure_equals(point.GetScanDirection(), 1);
ensure_equals(point.GetFlightLineEdge(), 1);
ensure_equals(point.GetClassification(), 7);
ensure_equals(point.GetScanAngleRank(), 90);
ensure_equals(point.GetUserData(), 0);
ensure_equals(point.GetPointSourceID(), 1);
// read 2nd point
reader.ReadNextPoint();
point = reader.GetPoint();
ensure_distance(point.GetX(), 40.0, 0.1);
ensure_distance(point.GetY(), 50.0, 0.1);
ensure_distance(point.GetZ(), 60.0, 0.1);
ensure_equals(point.GetIntensity(), 5);
ensure_equals(point.GetReturnNumber(), 1);
ensure_equals(point.GetNumberOfReturns(), 1);
ensure_equals(point.GetScanDirection(), 1);
ensure_equals(point.GetFlightLineEdge(), 1);
ensure_equals(point.GetClassification(), 7);
ensure_equals(point.GetScanAngleRank(), 90);
ensure_equals(point.GetUserData(), 0);
ensure_equals(point.GetPointSourceID(), 2);
// read 3rd point
reader.ReadNextPoint();
point = reader.GetPoint();
ensure_distance(point.GetX(), 70.0, 0.1);
ensure_distance(point.GetY(), 80.0, 0.1);
ensure_distance(point.GetZ(), 90.0, 0.1);
ensure_equals(point.GetIntensity(), 5);
ensure_equals(point.GetReturnNumber(), 1);
ensure_equals(point.GetNumberOfReturns(), 1);
ensure_equals(point.GetScanDirection(), 1);
ensure_equals(point.GetFlightLineEdge(), 1);
ensure_equals(point.GetClassification(), 7);
ensure_equals(point.GetScanAngleRank(), 90);
ensure_equals(point.GetUserData(), 0);
ensure_equals(point.GetPointSourceID(), 3);
}
}
// Test WriteHeader method
template<>
template<>
void to::test<3>()
{
{
std::ofstream ofs;
ofs.open(tmpfile_.c_str(), std::ios::out | std::ios::binary);
liblas::LASHeader header;
liblas::LASWriter writer(ofs, header);
// test initially written header
liblas::LASHeader const& hdr_default = writer.GetHeader();
test_default_header(hdr_default);
// update some header data and overwrite header block
header.SetFileSourceId(65535);
header.SetSystemId("Unit Test libLAS System");
header.SetSoftwareId("Unit Test libLAS Software");
header.SetCreationDOY(100);
header.SetCreationYear(2008);
header.SetScale(1.123, 2.123, 3.123);
header.SetOffset(4.321, 5.321, 6.321);
writer.WriteHeader(header);
}
// read and check updated header block
{
std::ifstream ifs;
ifs.open(tmpfile_.c_str(), std::ios::in | std::ios::binary);
liblas::LASReader reader(ifs);
liblas::LASHeader const& header = reader.GetHeader();
ensure_equals(header.GetFileSourceId(), 65535);
ensure_equals(header.GetSystemId(), std::string("Unit Test libLAS System"));
ensure_equals(header.GetSoftwareId(), std::string("Unit Test libLAS Software"));
ensure_equals(header.GetCreationDOY(), 100);
ensure_equals(header.GetCreationYear(), 2008);
ensure_equals(header.GetScaleX(), 1.123);
ensure_equals(header.GetScaleY(), 2.123);
ensure_equals(header.GetScaleZ(), 3.123);
ensure_equals(header.GetOffsetX(), 4.321);
ensure_equals(header.GetOffsetY(), 5.321);
ensure_equals(header.GetOffsetZ(), 6.321);
}
}
// Test GetStream method
template<>
template<>
void to::test<4>()
{
std::ofstream ofs;
ofs.open(tmpfile_.c_str(), std::ios::out | std::ios::binary);
liblas::LASHeader header;
liblas::LASWriter writer(ofs, header);
std::ostream& os = writer.GetStream();
ensure_equals(ofs, os); // same streams
}
}
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