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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/liblas.hpp>
#include <tut/tut.hpp>
#include <cstdio>
#include <bitset>
#include <fstream>
#include <string>
#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 ret = std::remove(tmpfile_.c_str());
if (0 != ret)
{
; // ignore, file may not exist
}
}
};
typedef test_group<laswriter_data> tg;
typedef tg::object to;
tg test_group_laswriter("liblas::Writer");
// 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::Header header;
liblas::Writer writer(ofs, header);
ensure_equals(writer.GetHeader().GetVersionMinor(), 2);
liblas::Header 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);
ensure(ifs.is_open());
liblas::Reader reader(ifs);
ensure_equals(reader.GetHeader().GetVersionMinor(), 2);
liblas::Header 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::Header header;
liblas::Writer writer(ofs, header);
liblas::Point point(&header);
// 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);
ensure(ifs.is_open());
liblas::Reader reader(ifs);
// read 1st point
reader.ReadNextPoint();
liblas::Point 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.GetScanAngleRank(), 90);
ensure_equals(point.GetUserData(), 0);
ensure_equals(point.GetPointSourceID(), 1);
typedef liblas::Classification::bitset_type bitset_type;
ensure_equals(bitset_type(point.GetClassification()), bitset_type(7));
// 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.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.GetScanAngleRank(), 90);
ensure_equals(point.GetUserData(), 0);
ensure_equals(point.GetPointSourceID(), 3);
typedef liblas::Classification::bitset_type bitset_type;
ensure_equals(bitset_type(point.GetClassification()), bitset_type(7));
}
}
// Test WriteHeader method
template<>
template<>
void to::test<3>()
{
{
std::ofstream ofs;
ofs.open(tmpfile_.c_str(), std::ios::out | std::ios::binary);
liblas::Header header;
liblas::Writer writer(ofs, header);
// test initially written header
liblas::Header const& hdr_default = writer.GetHeader();
test_default_header(hdr_default);
// update some header data and overwrite header block
header.SetReserved(1);
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.SetHeader(header);
writer.WriteHeader();
liblas::Header const& written_header = writer.GetHeader();
ensure_equals("written_header fileSource id", written_header.GetFileSourceId(), 65535);
ensure_equals("written_header SystemId", written_header.GetSystemId(), "Unit Test libLAS System");
ensure_equals("written_header SoftwareId", written_header.GetSoftwareId(), "Unit Test libLAS Software");
ensure_equals("written_header CreationDOY", written_header.GetCreationDOY(), 100);
ensure_equals("written_header CreationYear", written_header.GetCreationYear(), 2008);
}
// read and check updated header block
{
std::ifstream ifs;
ifs.open(tmpfile_.c_str(), std::ios::in | std::ios::binary);
ensure(ifs.is_open());
liblas::Reader reader(ifs);
liblas::Header const& header = reader.GetHeader();
ensure_equals(header.GetReserved(), 1);
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 appending to an existing file
template<>
template<>
void to::test<4>()
{
std::ofstream ofs;
ofs.open(tmpfile_.c_str(), std::ios::out | std::ios::binary);
liblas::Header header;
header.SetDataOffset(759);//Toggle to see the differences
header.SetDataFormatId( liblas::ePointFormat1 );
{
liblas::Writer testWriter( ofs, header);
}
ofs.close();
ofs.open(tmpfile_.c_str(), std::ios::out | std::ios::binary);
{
liblas::Writer test2Writer( ofs, header);
size_t count = 500;
for ( size_t i = 0; i < count ; i++ )
{
liblas::Point point(&test2Writer.GetHeader());
point.SetCoordinates( 10.0 + i, 20.0 + i, 30.0 + i );
test2Writer.WritePoint( point );
}
}
ofs.close();
std::ifstream ifs;
ifs.open(tmpfile_.c_str(), std::ios::in | std::ios::binary);
liblas::Reader reader(ifs);
liblas::Header const& h = reader.GetHeader();
ensure_equals("Appended point count does not match", h.GetPointRecordsCount(), static_cast<boost::uint32_t>(500));
}
// Test padding application for 1.0 files
template<>
template<>
void to::test<5>()
{
{
std::ofstream ofs;
ofs.open(tmpfile_.c_str(), std::ios::out | std::ios::binary);
liblas::Header header;
header.SetDataOffset(227);
header.SetDataFormatId( liblas::ePointFormat0 );
header.SetVersionMinor(0);
liblas::Writer testWriter( ofs, header);
ofs.close();
}
{
std::ifstream ifs;
ifs.open(tmpfile_.c_str(), std::ios::in | std::ios::binary);
liblas::Reader reader( ifs);
liblas::Header const& h = reader.GetHeader();
ensure_equals("DataOffset is not expected value", h.GetDataOffset(), static_cast<boost::uint32_t>(229));
}
}
// Test using a bogus record count in the header
template<>
template<>
void to::test<6>()
{
size_t count = 10;
// 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::Header header;
header.SetPointRecordsCount(12);
liblas::Writer writer(ofs, header);
for ( size_t i = 0; i < count ; i++ )
{
liblas::Point point(&writer.GetHeader());
point.SetCoordinates( 10.0 + i, 20.0 + i, 30.0 + i );
writer.WritePoint( point );
}
}
// Read previously created LAS file and check its header block
{
std::ifstream ifs;
ifs.open(tmpfile_.c_str(), std::ios::in | std::ios::binary);
ensure(ifs.is_open());
liblas::Reader reader(ifs);
ensure_equals(reader.GetHeader().GetPointRecordsCount(), count);
}
}
}
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