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LasReader.hpp
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LasReader.hpp
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/******************************************************************************
* Copyright (c) 2011, Michael P. Gerlek (mpg@flaxen.com)
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Hobu, Inc. or Flaxen Geo Consulting nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
****************************************************************************/
#pragma once
#include <pdal/pdal_export.hpp>
#include <pdal/Reader.hpp>
#include "LasError.hpp"
#include "LasHeader.hpp"
#include "LasUtils.hpp"
#include "ZipPoint.hpp"
extern "C" int32_t LasReader_ExitFunc();
extern "C" PF_ExitFunc LasReader_InitPlugin();
namespace pdal
{
class NitfReader;
class LasHeader;
class LeExtractor;
class PointDimensions;
class PDAL_DLL LasReader : public pdal::Reader
{
friend class NitfReader;
public:
LasReader() : pdal::Reader(), m_index(0), m_istream(NULL)
{}
virtual ~LasReader()
{ destroyStream(); }
static void * create();
static int32_t destroy(void *);
std::string getName() const;
Options getDefaultOptions();
const LasHeader& header() const
{ return m_lasHeader; }
point_count_t getNumPoints() const
{ return m_lasHeader.pointCount(); }
protected:
virtual std::istream *createStream()
{
m_istream = FileUtils::openFile(m_filename);
return m_istream;
}
virtual void destroyStream()
{ FileUtils::closeFile(m_istream); m_istream = NULL; }
private:
LasError m_error;
LasHeader m_lasHeader;
std::unique_ptr<ZipPoint> m_zipPoint;
std::unique_ptr<LASunzipper> m_unzipper;
point_count_t m_index;
std::istream* m_istream;
VlrList m_vlrs;
std::vector<ExtraDim> m_extraDims;
virtual void processOptions(const Options& options);
virtual void initialize();
virtual void addDimensions(PointLayoutPtr layout);
void fixupVlrs();
VariableLengthRecord *findVlr(const std::string& userId, uint16_t recordId);
void setSrsFromVlrs(MetadataNode& m);
void readExtraBytesVlr();
SpatialReference getSrsFromVlrs();
SpatialReference getSrsFromWktVlr();
SpatialReference getSrsFromGeotiffVlr();
void extractHeaderMetadata(MetadataNode& m);
void extractVlrMetadata(MetadataNode& m);
virtual QuickInfo inspect();
virtual void ready(PointTableRef table)
{ ready(table, m_metadata); }
virtual void ready(PointTableRef table, MetadataNode& m);
virtual point_count_t read(PointViewPtr view, point_count_t count);
virtual void done(PointTableRef table);
virtual bool eof()
{ return m_index >= getNumPoints(); }
void loadPoint(PointView& data, char *buf, size_t bufsize);
void loadPointV10(PointView& data, char *buf, size_t bufsize);
void loadPointV14(PointView& data, char *buf, size_t bufsize);
void loadExtraDims(LeExtractor& istream, PointView& data, PointId nextId);
point_count_t readFileBlock(
std::vector<char>& buf,
point_count_t maxPoints);
LasReader& operator=(const LasReader&); // not implemented
LasReader(const LasReader&); // not implemented
};
} // namespace pdal