/
Reader.cpp
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/
Reader.cpp
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/******************************************************************************
* Copyright (c) 2011, Michael P. Gerlek (mpg@flaxen.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 <pdal/drivers/faux/Reader.hpp>
#include <ctime>
#include <pdal/PointBuffer.hpp>
#include <boost/algorithm/string.hpp>
namespace pdal
{
namespace drivers
{
namespace faux
{
static Mode string2mode(const std::string& str)
{
if (boost::iequals(str, "constant")) return Constant;
if (boost::iequals(str, "random")) return Random;
if (boost::iequals(str, "ramp")) return Ramp;
if (boost::iequals(str, "uniform")) return Uniform;
if (boost::iequals(str, "normal")) return Normal;
throw pdal_error("invalid Mode option: " + str);
}
Reader::Reader(const Options& options)
: pdal::Reader(options)
{
m_count = 0;
}
void Reader::processOptions(const Options& options)
{
Bounds<double> bounds = options.getValueOrDefault<Bounds<double>>("bounds",Bounds<double>(0,0,0,1,1,1));
const std::vector<Range<double>>& ranges = bounds.dimensions();
m_minX = ranges[0].getMinimum();
m_maxX = ranges[0].getMaximum();
m_minY = ranges[1].getMinimum();
m_maxY = ranges[1].getMaximum();
m_minZ = ranges[2].getMinimum();
m_maxZ = ranges[2].getMaximum();
// For backward compatibility.
if (m_count == 0)
m_count = options.getValueOrThrow<point_count_t>("num_points");
m_mean_x = options.getValueOrDefault<double>("mean_x",0.0);
m_mean_y = options.getValueOrDefault<double>("mean_y",0.0);
m_mean_z = options.getValueOrDefault<double>("mean_z",0.0);
m_stdev_x = options.getValueOrDefault<double>("stdev_x",1.0);
m_stdev_y = options.getValueOrDefault<double>("stdev_y",1.0);
m_stdev_z = options.getValueOrDefault<double>("stdev_z",1.0);
m_mode = string2mode(options.getValueOrThrow<std::string>("mode"));
m_numReturns = options.getValueOrDefault("number_of_returns", 0);
if (m_numReturns > 10)
throw pdal_error("faux: number_of_returns option must be 10 or less.");
}
void Reader::addDimensions(PointContext ctx)
{
ctx.registerDims(getDefaultDimensions());
if (m_numReturns > 0)
{
ctx.registerDim(Dimension::Id::ReturnNumber);
ctx.registerDim(Dimension::Id::NumberOfReturns);
}
}
Dimension::IdList Reader::getDefaultDimensions()
{
Dimension::IdList ids;
ids.push_back(Dimension::Id::X);
ids.push_back(Dimension::Id::Y);
ids.push_back(Dimension::Id::Z);
ids.push_back(Dimension::Id::OffsetTime);
return ids;
}
point_count_t Reader::read(PointBuffer& buf, point_count_t count)
{
const double numDeltas = (double)count - 1.0;
const double delX = (m_maxX - m_minX) / numDeltas;
const double delY = (m_maxY - m_minY) / numDeltas;
const double delZ = (m_maxZ - m_minZ) / numDeltas;
log()->get(LogLevel::Debug5) << "Reading a point buffer of " <<
count << " points." << std::endl;
boost::uint64_t time = count;
boost::uint32_t seed = static_cast<boost::uint32_t>(std::time(NULL));
for (PointId idx = 0; idx < count; ++idx)
{
double x;
double y;
double z;
switch (m_mode)
{
case Random:
x = Utils::random(m_minX, m_maxX);
y = Utils::random(m_minY, m_maxY);
z = Utils::random(m_minZ, m_maxZ);
break;
case Constant:
x = m_minX;
y = m_minY;
z = m_minZ;
break;
case Ramp:
x = m_minX + delX * idx;
y = m_minY + delY * idx;
z = m_minZ + delZ * idx;
break;
case Uniform:
x = Utils::uniform(m_minX, m_maxX, seed++);
y = Utils::uniform(m_minY, m_maxY, seed++);
z = Utils::uniform(m_minZ, m_maxZ, seed++);
break;
case Normal:
x = Utils::normal(m_mean_x, m_stdev_x, seed++);
y = Utils::normal(m_mean_y, m_stdev_y, seed++);
z = Utils::normal(m_mean_z, m_stdev_z, seed++);
break;
default:
throw pdal_error("invalid mode in FauxReader");
break;
}
buf.setField(Dimension::Id::X, idx, x);
buf.setField(Dimension::Id::Y, idx, y);
buf.setField(Dimension::Id::Z, idx, z);
buf.setField(Dimension::Id::OffsetTime, idx, m_time++);
if (m_numReturns > 0)
{
buf.setField(Dimension::Id::ReturnNumber, idx, m_returnNum);
buf.setField(Dimension::Id::NumberOfReturns, idx, m_numReturns);
m_returnNum = (m_returnNum % m_numReturns) + 1;
}
}
return count;
}
} // namespace faux
} // namespace drivers
} // namespace pdal