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/******************************************************************************
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* Project: libLAS - http://liblas.org - A BSD library for LAS format data.
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* Purpose: Point Writer implementation for C++ libLAS
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* Author: Howard Butler, hobu.inc@gmail.com
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******************************************************************************
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* Copyright (c) 2010, Howard Butler
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* All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of the Martin Isenburg or Iowa Department
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* of Natural Resources nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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****************************************************************************/
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#include <liblas/header.hpp>
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#include <liblas/variablerecord.hpp>
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#include <liblas/schema.hpp>
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#include <liblas/detail/writer/writer.hpp>
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#include <liblas/detail/writer/point.hpp>
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#include <liblas/detail/private_utility.hpp>
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#include <boost/cstdint.hpp>
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using namespace boost;
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namespace liblas { namespace detail { namespace writer {
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Point::Point(std::ostream& ofs, boost::uint32_t& count, HeaderPtr header)
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, m_format(header->GetSchema())
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// If we have extra data on each point by virtue of the
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// base size of the format being smaller than the total byte
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// size of the format, we should make a buffer of blank data
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// that we can write into the file as necessary. We make it
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// here instead of at each ::write() invocation to save the
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// allocation and writing of the array
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if (m_format.GetByteSize() != m_format.GetBaseByteSize())
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std::size_t const size = m_format.GetByteSize() - m_format.GetBaseByteSize();
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m_blanks.resize(size);
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m_blanks.assign(size, 0);
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void Point::write(const liblas::Point& point)
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std::vector<boost::uint8_t> const& data = point.GetData();
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detail::write_n(m_ofs, data.front(), m_header->GetDataRecordLength());
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// write in our extra data that the user set on the
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// point up to the header's specified DataRecordLength
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// if (m_format.GetByteSize() != m_format.GetBaseByteSize()) {
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// std::vector<uint8_t> const& data = point.GetExtraData();
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// std::size_t size = m_format.GetByteSize() - m_format.GetBaseByteSize();
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// throw std::runtime_error("ByteSize of format was less than BaseByteSize, this cannot happen!");
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// if (data.size() == 0) {
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// detail::write_n(GetStream(), m_blanks.front(), static_cast<std::streamsize>(size));
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// } else if (data.size() < size){
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// // size can be casted now that we have already checked if it is less than 0
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// int16_t difference = static_cast<uint16_t>(size) - static_cast<uint16_t>(data.size());
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// detail::write_n(GetStream(), data.front(), data.size());
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// detail::write_n(GetStream(), m_blanks.front(), static_cast<std::streamsize>(difference));
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// detail::write_n(GetStream(), data.front(), static_cast<std::streamsize>(size));
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}}} // namespace liblas::detail::reader
added
removed
src/detail/writer/point.cpp
