IMP::example::ExampleUnaryFunction Class Reference

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Detailed Description

A simple unary function.

This one happens to be a harmonic. The source code is as follows:

/**
 *  \file example/ExampleUnaryFunction.h
 *  \brief A simple unary function.
 *
 *  Copyright 2007-2012 IMP Inventors. All rights reserved.
 *
 */


#ifndef IMPEXAMPLE_EXAMPLE_UNARY_FUNCTION_H
#define IMPEXAMPLE_EXAMPLE_UNARY_FUNCTION_H

#include "example_config.h"
#include <IMP/UnaryFunction.h>
#include <IMP/utility.h>

IMPEXAMPLE_BEGIN_NAMESPACE

//! A simple unary function
/** This one happens to be a harmonic.
    The source code is as follows:
    \include ExampleUnaryFunction.h

    \note The class does not have an IMPEXAMPLEEXPORT
    since it is all defined in a header.
 */
class ExampleUnaryFunction : public UnaryFunction
{
  Float center_;
  Float k_;
public:
  /** Create with the given center and spring constant. While it
      is generally bad form to have two Float arguments, it is
      hard to avoid here, and there is a bit of a sanity check.*/
  ExampleUnaryFunction(Float center, Float k) : center_(center), k_(k) {
    IMP_USAGE_CHECK(k > 0, "The spring constant must be positive.");
  }

  IMP_UNARY_FUNCTION_INLINE(ExampleUnaryFunction,
                            .5*k_*square(feature-center_),
                            k_*(feature - center_),
                            "Harmonic: " << center_ << " and " << k_
                            << std::endl);
};

IMPEXAMPLE_END_NAMESPACE

#endif  /* IMPEXAMPLE_EXAMPLE_UNARY_FUNCTION_H */

Note:

The class does not have an since it is all defined in a header.

Inheritance diagram for IMP::example::ExampleUnaryFunction:

List of all members.

Public Member Functions
	ExampleUnaryFunction (Float center, Float k)
Public Member Functions inherited from IMP::UnaryFunction
virtual double	evaluate (double feature) const
	Calculate score with respect to the given feature.
virtual DerivativePair	evaluate_with_derivative (double feature) const
	Calculate score and derivative with respect to the given feature.
Public Member Functions inherited from IMP::base::Object
std::size_t	__hash__ () const
virtual std::string	get_type_name () const =0
	Return a string identifying the type of the object.
virtual IMP::base::VersionInfo	get_version_info () const =0
	Get information about the module and version of the object.
void	set_check_level (CheckLevel l)
void	set_log_level (LogLevel l)
	Set the logging level used in this object.
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)

Static Public Member Functions
static ExampleUnaryFunction *	get_from (IMP::base::Object *o)

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Constructor & Destructor Documentation

IMP::example::ExampleUnaryFunction::ExampleUnaryFunction	(	Float	center,
		Float	k
	)

Create with the given center and spring constant. While it is generally bad form to have two Float arguments, it is hard to avoid here, and there is a bit of a sanity check.

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

• ExampleUnaryFunction.h