Detailed Description

Filter a set of particles based on the maximum difference in state indexes between them (a completely silly criteria). The thing to note is how the filter table determines when it should be applied and how it sets up the filters.

/**
 *  \file IMP/example/ExampleSubsetFilterTable.h
 *  \brief A Score on the distance between a pair of particles.
 *
 *  Copyright 2007-2017 IMP Inventors. All rights reserved.
 */
#ifndef IMPEXAMPLE_EXAMPLE_SUBSET_FILTER_TABLE_H
#define IMPEXAMPLE_EXAMPLE_SUBSET_FILTER_TABLE_H
#include <IMP/example/example_config.h>
#include <IMP/domino/subset_filters.h>
#include <IMP/domino/domino_macros.h>
IMPEXAMPLE_BEGIN_NAMESPACE
/** Filter a set of particles based on the maximum difference
    in state indexes between them (a completely silly criteria).
    The thing to note is how the filter table determines when
    it should be applied and how it sets up the filters.
    \include ExampleSubsetFilterTable.h
    \include ExampleSubsetFilterTable.cpp
*/
class IMPEXAMPLEEXPORT ExampleSubsetFilterTable
    : public domino::SubsetFilterTable {
  int max_diff_;
  const Particles ps_;
  Ints get_indexes(const domino::Subset &s,
                   const domino::Subsets &prior_subsets) const;
 public:
  ExampleSubsetFilterTable(unsigned int max_diff,
                           const ParticlesTemp &pt);
  virtual IMP::domino::SubsetFilter *get_subset_filter(
      const IMP::domino::Subset &s, const IMP::domino::Subsets &excluded) const
      IMP_OVERRIDE;
  virtual double get_strength(const IMP::domino::Subset &s,
                              const IMP::domino::Subsets &excluded) const
      IMP_OVERRIDE;
  IMP_OBJECT_METHODS(ExampleSubsetFilterTable);
};
IMPEXAMPLE_END_NAMESPACE
#endif /* IMPEXAMPLE_EXAMPLE_SUBSET_FILTER_TABLE_H */

/**
 *  \file ExampleSubsetFilterTable.cpp
 *  \brief A Score on the distance between a pair of particles.
 *
 *  Copyright 2007-2017 IMP Inventors. All rights reserved.
 */
#include <IMP/example/ExampleSubsetFilterTable.h>
#include <iterator>
IMPEXAMPLE_BEGIN_NAMESPACE
namespace {
class ExampleSubsetFilter : public domino::SubsetFilter {
  Ints indices_;
  int max_;
 public:
  ExampleSubsetFilter(const Ints& indices, unsigned int max)
      : domino::SubsetFilter("ExampleSubsetFilter%1%"),
        indices_(indices),
        max_(max) {}
  virtual bool get_is_ok(const IMP::domino::Assignment& assignment) const
      IMP_OVERRIDE;
  IMP_OBJECT_METHODS(ExampleSubsetFilter);
};
bool ExampleSubsetFilter::get_is_ok(const domino::Assignment& a) const {
  for (unsigned int i = 0; i < indices_.size(); ++i) {
    if (indices_[i] == -1) continue;  // for the non-all case
    for (unsigned int j = 0; j < i; ++j) {
      if (indices_[j] == -1) continue;  // for the non-all case
      if (std::abs(a[indices_[i - 1]] - a[indices_[i]]) > max_) return false;
    }
  }
  return true;
}
}
ExampleSubsetFilterTable::ExampleSubsetFilterTable(
    unsigned int max_diff, const ParticlesTemp& ps)
    : domino::SubsetFilterTable("ExampleSubsetFilterTable%1%"),
      max_diff_(max_diff),
      ps_(ps.begin(), ps.end()) {}
Ints ExampleSubsetFilterTable::get_indexes(
    const domino::Subset& s, const domino::Subsets& prior_subsets) const {
  // this method is only called from setup code, so it doesn't
  // have to be too fast
  Ints ret(ps_.size(), -1);
  for (unsigned int i = 0; i < s.size(); ++i) {
    for (unsigned int j = 0; j < ps_.size(); ++j) {
      if (s[i] == ps_[j]) {
        ret[j] = i;
        break;
      }
    }
  }
  for (unsigned int i = 0; i < ret.size(); ++i) {
    if (ret[i] == -1) return Ints();
  }
  // check if we have seen them already).
  for (unsigned int i = 0; i < prior_subsets.size(); ++i) {
    unsigned int count = 0;
    for (unsigned j = 0; j < prior_subsets[i].size(); ++j) {
      for (unsigned int k = 0; k < ps_.size(); ++k) {
        if (prior_subsets[i][j] == ps_[k]) {
          ++count;
          break;
        }
      }
    }
    if (count == ps_.size()) {
      return Ints();
    }
  }
  return ret;
}
double ExampleSubsetFilterTable::get_strength(
    const domino::Subset& cur_subset,
    const domino::Subsets& prior_subsets) const {
  IMP_OBJECT_LOG;
  if (get_indexes(cur_subset, prior_subsets).size() != ps_.size()) {
    return 0;
  } else {
    // pick some number
    return .5;
  }
}
domino::SubsetFilter* ExampleSubsetFilterTable::get_subset_filter(
    const domino::Subset& cur_subset,
    const domino::Subsets& prior_subsets) const {
  IMP_OBJECT_LOG;
  Ints its = get_indexes(cur_subset, prior_subsets);
  if (its.size() != ps_.size()) {
    // either the subset doesn't contain the needed particles or the prior does
    return nullptr;
  } else {
    IMP_NEW(ExampleSubsetFilter, ret, (its, max_diff_));
    // remember to release
    return ret.release();
  }
}
IMPEXAMPLE_END_NAMESPACE

Definition at line 24 of file ExampleSubsetFilterTable.h.

Public Member Functions
	ExampleSubsetFilterTable (unsigned int max_diff, const ParticlesTemp &pt)

virtual double	get_strength (const IMP::domino::Subset &s, const IMP::domino::Subsets &excluded) const
	The strength is a rough metric of how this filter restricts the subset. More...

virtual IMP::domino::SubsetFilter *	get_subset_filter (const IMP::domino::Subset &s, const IMP::domino::Subsets &excluded) const

virtual std::string	get_type_name () const

virtual ::IMP::VersionInfo	get_version_info () const
	Get information about the module and version of the object. More...

Public Member Functions inherited from IMP::domino::SubsetFilterTable
	SubsetFilterTable (std::string name="SubsetFilterTable%1%")

Public Member Functions inherited from IMP::Object
virtual void	clear_caches ()

CheckLevel	get_check_level () const

LogLevel	get_log_level () const

void	set_check_level (CheckLevel l)

void	set_log_level (LogLevel l)
	Set the logging level used in this object. More...

void	set_was_used (bool tf) const

void	show (std::ostream &out=std::cout) const

const std::string &	get_name () const

void	set_name (std::string name)

Additional Inherited Members
Protected Member Functions inherited from IMP::Object
	Object (std::string name)
	Construct an object with the given name. More...

virtual void	do_destroy ()

Member Function Documentation

virtual double IMP::example::ExampleSubsetFilterTable::get_strength	(	const IMP::domino::Subset &	s,
		const IMP::domino::Subsets &	prior_subsets
	)		const

virtual

The strength is a rough metric of how this filter restricts the subset.

It is still kind of nebulous, but as a rough guide, it should be the fraction of the states that are eliminated by the filter.

Implements IMP::domino::SubsetFilterTable.

virtual IMP::domino::SubsetFilter* IMP::example::ExampleSubsetFilterTable::get_subset_filter	(	const IMP::domino::Subset &	s,
		const IMP::domino::Subsets &	prior_subsets
	)		const

virtual

Return a SubsetFilter which acts on the Subset s, given that all the prior_subsets have already been filtered. This should return nullptr if there is no filtering to be done.

Implements IMP::domino::SubsetFilterTable.

virtual ::IMP::VersionInfo IMP::example::ExampleSubsetFilterTable::get_version_info ( ) const

virtual

Get information about the module and version of the object.

Reimplemented from IMP::Object.

Definition at line 41 of file ExampleSubsetFilterTable.h.

The documentation for this class was generated from the following file:

ExampleSubsetFilterTable.h

Detailed Description

Public Member Functions

Additional Inherited Members

Member Function Documentation