/usr/include/ITK-4.5/itkRealTimeInterval.h is in libinsighttoolkit4-dev 4.5.0-3.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef __itkRealTimeInterval_h
#define __itkRealTimeInterval_h
#include "itkIntTypes.h"
#include "itkMacro.h"
#include <iostream>
namespace itk
{
/** \class RealTimeInterval
* \brief A data structure for representing the time
* span between two RealTimeStamps, with similar high precision and a large
* dynamic range to what the RealTimeStamps offer.
*
* This class represents the difference between two time points, typically for
* applications that need to mark the time of acquisition of data with high
* precision (microseconds) and a large dynamic range (years). This class will
* be the natural representation for the duration of a video sequence, or for
* the time that has passed between the acquisition of one images and a
* subsequent one.
*
* \sa RealTimeStamp
* \sa RealTimeClock
*
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT RealTimeInterval
{
public:
typedef RealTimeInterval Self;
/** Internal types used to represent seconds and microseconds. */
typedef int64_t SecondsDifferenceType;
typedef int64_t MicroSecondsDifferenceType;
/** Constructor */
RealTimeInterval();
/** Constructor with values. Intentionally made public */
RealTimeInterval( SecondsDifferenceType, MicroSecondsDifferenceType );
/** Destructor */
~RealTimeInterval();
/** Native type used to represent the time in different time units. */
typedef double TimeRepresentationType;
/** Return time in multiple units. */
TimeRepresentationType GetTimeInMicroSeconds() const;
TimeRepresentationType GetTimeInMilliSeconds() const;
TimeRepresentationType GetTimeInSeconds() const;
TimeRepresentationType GetTimeInMinutes() const;
TimeRepresentationType GetTimeInHours() const;
TimeRepresentationType GetTimeInDays() const;
/** Arithmetic operations between RealTimeInterval and RealTimeInterval. */
Self operator-( const Self & ) const;
Self operator+( const Self & ) const;
const Self & operator-=( const Self & );
const Self & operator+=( const Self & );
/** Comparison operations. */
bool operator>( const Self & ) const;
bool operator<( const Self & ) const;
bool operator==( const Self & ) const;
bool operator!=( const Self & ) const;
bool operator<=( const Self & ) const;
bool operator>=( const Self & ) const;
/** Set with values. The units and signs of the seconds and microseconds will
* be harmonized internally. */
void Set( SecondsDifferenceType, MicroSecondsDifferenceType );
/** Default print out of a RealTimeInterval */
friend ITKCommon_EXPORT std::ostream & operator<<(std::ostream & os, const RealTimeInterval & v);
private:
friend class RealTimeStamp;
/** Number of Seconds and Microseconds since... */
SecondsDifferenceType m_Seconds;
/** Number of Microseconds since the second.
* Should be in the range -999,999 to 999,999
* and it must always have the same sign as
* the m_Seconds member variable. */
MicroSecondsDifferenceType m_MicroSeconds;
};
} // end of namespace itk
#endif // __itkRealTimeInterval_h
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