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/******************************************************************************
* Copyright (c) 2015, 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 "DensityKernel.hpp"
#include "../filters/HexBinFilter.hpp"
#include "private/density/OGR.hpp"
#include <pdal/util/FileUtils.hpp>
namespace pdal
{
static PluginInfo const s_info
{
"kernels.density",
"Density Kernel",
"http://pdal.io/apps/density.html"
};
CREATE_STATIC_KERNEL(DensityKernel, s_info)
std::string DensityKernel::getName() const { return s_info.name; }
void DensityKernel::addSwitches(ProgramArgs& args)
{
args.add("input,i", "input point cloud file name", m_inputFile).
setPositional();
args.add("output,o", "output vector data source", m_outputFile).
setPositional();
args.add("ogrdriver,f", "OGR driver name to use ", m_driverName,
"ESRI Shapefile");
args.add("lyr_name", "OGR layer name to use", m_layerName, "");
args.add("sample_size", "Sample size for auto-edge length calculation",
m_sampleSize, 5000U);
args.add("threshold", "Required cell density", m_density, 15);
args.add("edge_length", "Length of hex edge", m_edgeLength);
args.add("hole_cull_area_tolerance", "Tolerance area to "
"apply to holes before cull", m_cullArea);
args.add("smooth", "Smooth boundary output", m_doSmooth, true);
}
void DensityKernel::outputDensity(pdal::SpatialReference const& reference)
{
HexBin* hexbin = dynamic_cast<HexBin*>(m_hexbinStage);
if (!hexbin)
throw pdal::pdal_error("unable to fetch filters.hexbin stage!");
hexer::HexGrid* grid = hexbin->grid();
OGR writer(m_outputFile, reference.getWKT(), m_driverName, m_layerName);
writer.writeDensity(grid);
}
int DensityKernel::execute()
{
if (m_inputFile == "STDIN" ||
(FileUtils::extension(m_inputFile) == ".xml" ||
FileUtils::extension(m_inputFile) == ".json"))
{
m_manager.readPipeline(m_inputFile);
}
else
{
m_manager.makeReader(m_inputFile, "");
}
Options options;
options.add("sample_size", m_sampleSize);
options.add("threshold", m_density);
options.add("edge_length", m_edgeLength);
options.add("hole_cull_area_tolerance", m_cullArea);
options.add("smooth", m_doSmooth);
m_hexbinStage = &(m_manager.makeFilter("filters.hexbin",
*m_manager.getStage(), options));
m_manager.execute();
outputDensity(m_manager.pointTable().anySpatialReference());
return 0;
}
} // namespace pdal
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