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/*
* Software License Agreement (BSD License)
*
* Point Cloud Library (PCL) - www.pointclouds.org
* Copyright (c) 2010-2012, Willow Garage, Inc.
*
* 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 the copyright holder(s) 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
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* 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.
*
*
*
*/
#pragma once
#include <pcl/memory.h>
#include <pcl/pcl_macros.h>
#include <pcl/point_cloud.h>
namespace pcl
{
/** \brief Comparator is the base class for comparators that compare two points given some function.
* Currently intended for use with OrganizedConnectedComponentSegmentation
*
* \author Alex Trevor
*/
template <typename PointT>
class Comparator
{
public:
using PointCloud = pcl::PointCloud<PointT>;
using PointCloudPtr = typename PointCloud::Ptr;
using PointCloudConstPtr = typename PointCloud::ConstPtr;
using Ptr = shared_ptr<Comparator<PointT> >;
using ConstPtr = shared_ptr<const Comparator<PointT> >;
/** \brief Empty constructor for comparator. */
Comparator () : input_ ()
{
}
/** \brief Empty destructor for comparator. */
virtual
~Comparator ()
{
}
/** \brief Set the input cloud for the comparator.
* \param[in] cloud the point cloud this comparator will operate on
*/
virtual void
setInputCloud (const PointCloudConstPtr& cloud)
{
input_ = cloud;
}
/** \brief Get the input cloud this comparator operates on. */
virtual PointCloudConstPtr
getInputCloud () const
{
return (input_);
}
/** \brief Compares the two points in the input cloud designated by these two indices.
* This is pure virtual and must be implemented by subclasses with some comparison function.
* \param[in] idx1 the index of the first point.
* \param[in] idx2 the index of the second point.
*/
virtual bool
compare (int idx1, int idx2) const = 0;
protected:
PointCloudConstPtr input_;
public:
PCL_MAKE_ALIGNED_OPERATOR_NEW
};
}