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FerryFilter.cpp
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FerryFilter.cpp
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/******************************************************************************
* Copyright (c) 2014, Howard Butler, howard@hobu.co
*
* 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.
****************************************************************************/
#include "FerryFilter.hpp"
#include <pdal/util/Algorithm.hpp>
#include <pdal/util/ProgramArgs.hpp>
namespace pdal
{
static PluginInfo const s_info = PluginInfo(
"filters.ferry",
"Copy data from one dimension to another.",
"http://pdal.io/stages/filters.ferry.html" );
CREATE_STATIC_PLUGIN(1, 0, FerryFilter, Filter, s_info)
std::string FerryFilter::getName() const { return s_info.name; }
void FerryFilter::addArgs(ProgramArgs& args)
{
args.add("dimensions", "List of dimensions to ferry",
m_dimSpec).setPositional();
}
void FerryFilter::initialize()
{
std::vector<std::string> toNames;
for (auto& dim : m_dimSpec)
{
StringList s = Utils::split(dim, '=');
if (s.size() != 2)
throwError("Invalid dimension specified '" + dim + "'. Need "
"<from dimension>=><to dimension>. See documentation for "
"details.");
// Allow new '=>' syntax
if (s[1][0] == '>')
s[1].erase(s[1].begin());
Utils::trim(s[0]);
Utils::trim(s[1]);
if (s[0] == s[1])
throwError("Can't ferry dimension '" + s[0] + "' to itself.");
if (Utils::contains(toNames, s[1]))
throwError("Can't ferry two source dimensions to the same "
"destination dimension.");
toNames.push_back(s[1]);
m_dims.emplace_back( s[0], s[1] );
}
}
void FerryFilter::addDimensions(PointLayoutPtr layout)
{
for (auto& info : m_dims)
{
const Dimension::Id fromId = layout->findDim(info.m_fromName);
const Dimension::Type fromType = layout->dimType(fromId);
info.m_toId = layout->registerOrAssignDim(info.m_toName, fromType);
}
}
void FerryFilter::prepared(PointTableRef table)
{
for (auto& info : m_dims)
{
info.m_fromId = table.layout()->findDim(info.m_fromName);
if (info.m_fromId == Dimension::Id::Unknown && info.m_fromName.size())
throwError("Can't ferry dimension '" + info.m_fromName + "'. "
"Dimension doesn't exist.");
}
}
bool FerryFilter::processOne(PointRef& point)
{
for (const auto& info : m_dims)
{
if (info.m_fromId != Dimension::Id::Unknown)
{
double v = point.getFieldAs<double>(info.m_fromId);
point.setField(info.m_toId, v);
}
}
return true;
}
void FerryFilter::filter(PointView& view)
{
PointRef point(view, 0);
for (PointId id = 0; id < view.size(); ++id)
{
point.setPointId(id);
processOne(point);
}
}
} // namespace pdal