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HexbinFilterTest.cpp
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HexbinFilterTest.cpp
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/******************************************************************************
* Copyright (c) 2013, Howard Butler (hobu.inc@gmail.com)
*
* 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 "gtest/gtest.h"
#include <pdal/SpatialReference.hpp>
#include <pdal/StageFactory.hpp>
#include <pdal/PointBuffer.hpp>
#include "Support.hpp"
using namespace pdal;
void printChildren(std::ostream& out, MetadataNode m, int depth = 0)
{
std::vector<MetadataNode> children = m.children();
for (auto mi = children.begin(); mi != children.end(); ++mi)
{
MetadataNode& c = *mi;
for (int i = 0; i < depth; i++)
out << "\t";
out << c.name() << " : " << c.value() << "\n";
printChildren(out, c, depth + 1);
}
}
TEST(HexbinFilterTest, HexbinFilterTest_test_1)
{
StageFactory f;
Options options;
options.add("filename", Support::datapath("las/hextest.las"));
options.add("output_tesselation", true);
options.add("sample_size", 5000, "Number of samples to use "
"when estimating hexagon edge size. Specify 0.0 for edge_size if "
"you want to compute one.");
options.add("threshold", 1, "Number of points necessary inside "
"a hexagon to be considered full");
options.add("edge_length", 0.666666666, "The edge size of the hexagon to "
"use in situations where you do not want to estimate based on "
"a sample");
ReaderPtr reader(f.createReader("readers.las"));
EXPECT_TRUE(reader.get());
reader->setOptions(options);
FilterPtr hexbin(f.createFilter("filters.hexbin"));
EXPECT_TRUE(hexbin.get());
hexbin->setOptions(options);
hexbin->setInput(reader.get());
PointContext ctx;
hexbin->prepare(ctx);
hexbin->execute(ctx);
MetadataNode m = ctx.metadata();
m = m.findChild(hexbin->getName());
std::string filename = Support::temppath("hexbin.txt");
std::ofstream out(filename);
printChildren(out, m);
out.close();
EXPECT_TRUE(Support::compare_text_files(filename,
Support::datapath("filters/hexbin.txt")));
FileUtils::deleteFile(filename);
}