Reader.cpp

/******************************************************************************
* Copyright (c) 2011, Michael P. Gerlek (mpg@flaxen.com)
*
* All rights reserved.
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* modification, are permitted provided that the following
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*       with the distribution.
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*       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
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#include <pdal/Reader.hpp>
#include <pdal/util/ProgramArgs.hpp>

namespace pdal
{

void Reader::readerAddArgs(ProgramArgs& args)
{
    m_filenameArg = &args.add("filename", "Name of file to read", m_filename);
    m_countArg = &args.add("count", "Maximum number of points read", m_count,
        (std::numeric_limits<point_count_t>::max)());

    args.add("override_srs", "Spatial reference to apply to data",
            m_overrideSrs);

    args.addSynonym("override_srs", "spatialreference");

    args.add("default_srs",
            "Spatial reference to apply to data if one cannot be inferred",
            m_defaultSrs);
}


void Reader::readerInitialize(PointTableRef)
{
    if (!m_overrideSrs.empty() && !m_defaultSrs.empty())
        throwError("Cannot specify both 'override_srs' and 'default_srs'");

    if (!m_overrideSrs.empty())
        setSpatialReference(m_overrideSrs);
    else if (!m_defaultSrs.empty())
        setSpatialReference(m_defaultSrs);
}


void Reader::setSpatialReference(MetadataNode& m, const SpatialReference& srs)
{
    if (getSpatialReference().empty() || m_overrideSrs.empty())
    {
        Stage::setSpatialReference(m, srs);
    }
    else
    {
        log()->get(LogLevel::Debug) <<
            "Ignoring setSpatialReference attempt: an override was set";
    }
}

} // namespace pdal