tfjava.TimeCache Class Reference

List of all members.

Public Member Functions
TransformStorage	getData (long time)
boolean	insertData (TransformStorage newData)
	TimeCache (long maxStorageTime, Frame parentFrame, Frame childFrame)
boolean	timeInBufferRange (long time)
long	timeToNearestTransform (long time)
Protected Member Functions
void	removeOldData ()
Protected Attributes
Frame	childFrame
long	maxStorageTime
Frame	parentFrame
TreeMap< Long, TransformStorage >	storage

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Detailed Description

Buffer in which transformations from one specific frame to another are stored, ordered in time.

Author:

Sjoerd van den Dries

Version:

Feb 28, 2011

Definition at line 41 of file TimeCache.java.

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Constructor & Destructor Documentation

tfjava.TimeCache.TimeCache	(	long	maxStorageTime,
		Frame	parentFrame,
		Frame	childFrame
	)		[inline]

Class Constructor.

Definition at line 55 of file TimeCache.java.

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Member Function Documentation

TransformStorage tfjava.TimeCache.getData

(

long

time

)

[inline]

Returns the transformation in this buffer at time point time (in nanoseconds); Uses interpolation or (forward or backward) extrapolation.

If only one transformation is available, this transformation is returned, regardless of how far back or ahead the queried time point is compared to the time stamp of this transformation.

Definition at line 85 of file TimeCache.java.

boolean tfjava.TimeCache.insertData

(

TransformStorage

newData

)

[inline]

Inserts transformation newData in the buffer, while maintaining the time ordering.

Definition at line 65 of file TimeCache.java.

void tfjava.TimeCache.removeOldData

(

)

[inline, protected]

Removes all transforms that are more than maxStorageTime older than the newest transform.

Definition at line 134 of file TimeCache.java.

boolean tfjava.TimeCache.timeInBufferRange

(

long

time

)

[inline]

Check whether timepoint 'time' is between the oldest and newest entries in tbe buffer.

Parameters:

time	Time point to be checked

Returns:

true if 'time' is between the oldest and newest buffer entry

Definition at line 149 of file TimeCache.java.

long tfjava.TimeCache.timeToNearestTransform

(

long

time

)

[inline]

Returns the absolute time difference to the nearest transform from the given time point, in nanoseconds.

Definition at line 122 of file TimeCache.java.

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Member Data Documentation

Frame tfjava.TimeCache.childFrame [protected]

Reference to the child frame (target frame)

Definition at line 50 of file TimeCache.java.

long tfjava.TimeCache.maxStorageTime [protected]

Maximum storage time, in nanoseconds

Definition at line 46 of file TimeCache.java.

Frame tfjava.TimeCache.parentFrame [protected]

Reference to the parent frame (source frame)

Definition at line 48 of file TimeCache.java.

TreeMap<Long, TransformStorage> tfjava.TimeCache.storage [protected]

Map containing the transformations, ordered in time

Definition at line 44 of file TimeCache.java.

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

• TimeCache.java