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PointTable.hpp
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PointTable.hpp
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/******************************************************************************
* Copyright (c) 2014, Hobu 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 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 <map>
#include <memory>
#include <vector>
#include "pdal/Dimension.hpp"
#include "pdal/PointContainer.hpp"
#include "pdal/PointLayout.hpp"
#include "pdal/Metadata.hpp"
namespace pdal
{
class PDAL_DLL BasePointTable : public PointContainer
{
friend class PointView;
public:
BasePointTable() : m_metadata(new Metadata())
{}
virtual ~BasePointTable()
{}
// Layout operations.
virtual PointLayoutPtr layout() const = 0;
// Metadata operations.
MetadataNode metadata()
{ return m_metadata->getNode(); }
virtual void finalize()
{ layout()->finalize(); }
SpatialReference spatialRef() const;
void setSpatialRef(const SpatialReference& sref);
MetadataNode privateMetadata(const std::string& name);
private:
// Point data operations.
virtual PointId addPoint() = 0;
protected:
virtual char *getPoint(PointId idx) = 0;
protected:
MetadataPtr m_metadata;
};
typedef BasePointTable& PointTableRef;
typedef BasePointTable const & ConstPointTableRef;
class PDAL_DLL SimplePointTable : public BasePointTable
{
private:
std::unique_ptr<PointLayout> m_layout;
public:
SimplePointTable() : m_layout(new PointLayout())
{}
virtual PointLayoutPtr layout() const
{ return m_layout.get(); }
protected:
std::size_t pointsToBytes(point_count_t numPts) const
{ return m_layout->pointSize() * numPts; }
private:
virtual void setFieldInternal(Dimension::Id::Enum id, PointId idx,
const void *value);
virtual void getFieldInternal(Dimension::Id::Enum id, PointId idx,
void *value) const;
// The number of points in each memory block.
char *getDimension(const Dimension::Detail *d, PointId idx)
{ return getPoint(idx) + d->offset(); }
const char *getDimension(const Dimension::Detail *d, PointId idx) const
{
SimplePointTable *ncThis = const_cast<SimplePointTable *>(this);
return ncThis->getPoint(idx) + d->offset();
}
};
// This provides a context for processing a set of points and allows the library
// to be used to process multiple point sets simultaneously.
class PDAL_DLL PointTable : public SimplePointTable
{
private:
// Point storage.
std::vector<char *> m_blocks;
point_count_t m_numPts;
static const point_count_t m_blockPtCnt = 65536;
public:
PointTable() : m_numPts(0)
{}
virtual ~PointTable();
protected:
virtual char *getPoint(PointId idx);
private:
// Point data operations.
virtual PointId addPoint();
};
class PDAL_DLL FixedPointTable : SimplePointTable
{
public:
FixedPointTable(point_count_t capacity) : m_capacity(capacity), m_numPts(0)
{}
virtual void finalize()
{
BasePointTable::finalize();
m_buf.resize(pointsToBytes(m_capacity + 1));
}
void reset()
{ m_numPts = 0; }
protected:
virtual char *getPoint(PointId idx)
{ return m_buf.data() + pointsToBytes(idx); }
private:
std::vector<char> m_buf;
point_count_t m_capacity;
point_count_t m_numPts;
virtual PointId addPoint()
{ return ++m_numPts; }
};
} //namespace