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/******************************************************************************
* $Id$
*
* Project: libLAS - http://liblas.org - A BSD library for LAS format data.
* Purpose: LAS reader class
* Author: Mateusz Loskot, mateusz@loskot.net
*
******************************************************************************
* Copyright (c) 2008, Mateusz Loskot
* Copyright (c) 2008, Phil Vachon
*
* 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 the Martin Isenburg or Iowa Department
* of Natural Resources 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.
****************************************************************************/
#include <liblas/lasreader.hpp>
#include <liblas/detail/reader.hpp>
// std
#include <stdexcept>
#include <fstream>
#include <string>
#include <cstring> // std::memset
#include <cassert>
#include <iostream>
namespace liblas
{
LASReader::LASReader(std::istream& ifs) :
m_pimpl(detail::ReaderFactory::Create(ifs))
{
Init();
}
LASReader::~LASReader()
{
// empty, but required so we can implement PIMPL using
// std::auto_ptr with incomplete type (Reader).
}
std::size_t LASReader::GetVersion() const
{
return m_pimpl->GetVersion();
}
LASHeader const& LASReader::GetHeader() const
{
return m_header;
}
LASPoint const& LASReader::GetPoint() const
{
return m_point;
}
bool LASReader::ReadNextPoint()
{
bool ret = m_pimpl->ReadNextPoint(m_point, m_header);
return ret;
}
bool LASReader::ReadPointAt(std::size_t n)
{
bool ret = m_pimpl->ReadPointAt(n, m_point, m_header);
return ret;
}
LASPoint const& LASReader::operator[](std::size_t n)
{
if (m_header.GetPointRecordsCount() <= n)
{
throw std::out_of_range("point subscript out of range");
}
bool ret = m_pimpl->ReadPointAt(n, m_point, m_header);
if (!ret)
{
throw std::out_of_range("no point record at given position");
}
return m_point;
}
void LASReader::Init()
{
bool ret = m_pimpl->ReadHeader(m_header);
if (!ret)
throw std::runtime_error("public header block reading failure");
ret = m_pimpl->ReadVLR(m_header);
if (!ret)
throw std::runtime_error("public vlr header block reading failure");
m_pimpl->ReadGeoreference(m_header);
m_pimpl->Reset(m_header);
}
std::istream& LASReader::GetStream() const
{
return m_pimpl->GetStream();
}
void LASReader::Reset()
{
Init();
}
bool LASReader::IsEOF() const
{
return GetStream().eof();
}
bool LASReader::SetSRS(const LASSpatialReference& srs)
{
m_pimpl->SetSRS(srs);
return true;
}
} // namespace liblas
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