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e57reader.hpp
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e57reader.hpp
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/******************************************************************************
* Copyright (c) 2019, Helix Re Inc.
*
* 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 Helix Re Inc. 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 <string>
#include <pdal/pdal_types.hpp>
#include <E57Format.h>
#include <pdal/Reader.hpp>
#include <pdal/Streamable.hpp>
#include "scan.hpp"
namespace pdal {
class E57Reader: public Reader, public Streamable
{
class ChunkReader
{
public:
ChunkReader(pdal::point_count_t pointOffset,pdal::point_count_t maxPointRead,
std::shared_ptr<e57::Scan> scan,
const std::set<std::string>& e57Dimensions); // TODO make this 1000 a static variable
~ChunkReader();
// returns false if the index falls out of the [pointOffset,pointOffset + m_maxPointRead] interval
bool isInScope(pdal::point_count_t index) const;
bool isInChunk(pdal::point_count_t index) const;
void setPoint(pdal::point_count_t pointIndex, pdal::PointRef point,
const std::set<std::string>& e57Dimensions) const;
// Reads a new chunk of data
pdal::point_count_t read(pdal::point_count_t index);
private:
pdal::point_count_t m_startIndex;
pdal::point_count_t m_pointOffset;
pdal::point_count_t m_maxPointRead;
const pdal::point_count_t m_defaultChunkSize;
std::map<std::string,std::vector<double>> m_doubleBuffers;
std::vector<e57::SourceDestBuffer> m_e57buffers;
std::unique_ptr<e57::CompressedVectorReader> m_dataReader;
std::shared_ptr<e57::Scan> m_scan;
};
public:
E57Reader(): Reader(), Streamable() {};
E57Reader(std::string filename);
~E57Reader();
std::string getName() const;
/// Extract the header and return in a human readable format
std::string getHeader() const;
/// Extract the file's structure and return in human readable format
std::string getSummary() const;
/// Get the total number of points in the scan
point_count_t getNumberPoints() const;
/// Gets the scan index of a given point index
int getScanIndex(pdal::point_count_t) const;
/// Gets the dimensions present within the set of clouds
std::set<std::string> getDimensions();
/// returns the scans
std::vector<std::shared_ptr<e57::Scan>> getScans() const;
private:
/* Pdal section */
virtual void addDimensions(PointLayoutPtr layout);
// // virtual void addArgs(ProgramArgs& args);
virtual void initialize();
virtual bool processOne(PointRef& point);
virtual point_count_t read(PointViewPtr view, point_count_t count);
// virtual void done(PointTableRef table);
void openFile_(std::string filename);
void setupReader_(pdal::point_count_t pointNumber);
e57::Node getNode_(const e57::Node &parent, std::string childName) const;
point_count_t getNumberPoints_() const;
void extractScans_();
// members
std::unique_ptr<e57::ImageFile> m_imf;
std::vector<std::shared_ptr<e57::Scan>> m_scans;
// Allows construction by filename
std::string m_filenameManual;
// E57 dimensions that are common to all scans
std::set<std::string> m_validDimensions;
// Chunk data reader
std::unique_ptr<ChunkReader> m_chunk;
int m_currentScanIndex;
point_count_t m_currentPoint; // Variable for streaming mode
// Cache the total number of points
point_count_t m_pointCount;
};
}