xn::SceneMetaData Class ReferenceMeta-Data Objects (Frame Objects)

#include <XnCppWrapper.h>

Inheritance diagram for xn::SceneMetaData:

[legend]

List of all members.

Public Member Functions
	SceneMetaData ()
void	InitFrom (const SceneMetaData &other)
XnStatus	InitFrom (const SceneMetaData &other, XnUInt32 nXRes, XnUInt32 nYRes, const XnLabel *pExternalBuffer)
XnStatus	CopyFrom (const SceneMetaData &other)
XnStatus	ReAdjust (XnUInt32 nXRes, XnUInt32 nYRes, const XnLabel *pExternalBuffer=NULL)
const XnLabel *	Data () const
const XnLabel *&	Data ()
XnLabel *	WritableData ()
const xn::LabelMap &	LabelMap () const
xn::LabelMap &	WritableLabelMap ()
const XnLabel &	operator[] (XnUInt32 nIndex) const
const XnLabel &	operator() (XnUInt32 x, XnUInt32 y) const
const XnSceneMetaData *	GetUnderlying () const
XnSceneMetaData *	GetUnderlying ()

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Detailed Description

Saves the frame object (data and configuration) from the xn::SceneAnalyzer node. This frame object is a snapshot of the generated scene data and its associated configuration information at a certain point in time. This metadata provides fast and easy access to the SceneAnalyzer node's saved frame object.

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Constructor & Destructor Documentation

xn::SceneMetaData::SceneMetaData

(

)

[inline]

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Member Function Documentation

XnStatus xn::SceneMetaData::CopyFrom

(

const SceneMetaData &

other

)

[inline]

Performs a deep-copy of another metadata object (including duplication of the data buffer)

Parameters:

[in]

other

source object

const XnLabel* xn::SceneMetaData::Data

(

)

const [inline]

Returns the scene map.

Remarks

This method returns a pointer to the first scene pixel in the map. The scene map is implemented as a row-major order compact layout of pixels in the map.

The pixel format of the map is XnLabel, i.e. 16-bit integer values, where every user has a distinct label.

This method is reimplemented from the xn::OutputMetaData class.

Reimplemented from xn::OutputMetaData.

const XnLabel*& xn::SceneMetaData::Data

(

)

[inline]

Returns the scene map.

Remarks

This method returns a pointer to the first scene pixel in the map. The scene map is implemented as a row-major order compact layout of pixels in the map.

The pixel format of the map is XnLabel, i.e. 16-bit integer values, where every user has a distinct label.

This method is reimplemented from the xn::OutputMetaData class.

Reimplemented from xn::OutputMetaData.

const XnSceneMetaData* xn::SceneMetaData::GetUnderlying

(

)

const [inline]

Gets the C object that is wrapped by this object.

Reimplemented from xn::MapMetaData.

XnSceneMetaData* xn::SceneMetaData::GetUnderlying

(

)

[inline]

Gets the C object that is wrapped by this object.

Reimplemented from xn::MapMetaData.

void xn::SceneMetaData::InitFrom

(

const SceneMetaData &

other

)

[inline]

Shallow-Copies an SceneMetaData object.

Parameters:

[in]

other

source object.

Remarks:

Note that the data buffer is not copied, and that both object will point to the same buffer.

XnStatus xn::SceneMetaData::InitFrom	(	const SceneMetaData &	other,
		XnUInt32	nXRes,
		XnUInt32	nYRes,
		const XnLabel *	pExternalBuffer
	)		[inline]

Shallow copies another SceneMetaData object, and then ReAdjust it.

Parameters:

[in]	other	source object
[in]	nXRes	requested number of columns in the map
[in]	nYRes	requested number of rows in the map
[in]	pExternalBuffer	Optional. An external buffer matching requested resolution. If NULL, A buffer will be allocated.

const xn::LabelMap& xn::SceneMetaData::LabelMap

(

)

const [inline]

Gets a light object wrapping the label map

const XnLabel& xn::SceneMetaData::operator()	(	XnUInt32	x,
		XnUInt32	y
	)		const [inline]

Gets the label of a single pixel of the frame map by its X and Y positions.

Parameters:

[in]	x	X-coordinate of the pixel in the map
[in]	y	Y-coordinate of the pixel in the map

Remarks

The values are of type XnLabel. Each pixel's value labels it according to user.

const XnLabel& xn::SceneMetaData::operator[]

(

XnUInt32

nIndex

)

const [inline]

Gets the label of a single pixel of the frame map by its index in the array.

Parameters:

[in]

nIndex

The index of the pixel in the buffer.

Remarks

The values are of type XnLabel. Each pixel's value labels it according to user.

XnStatus xn::SceneMetaData::ReAdjust	(	XnUInt32	nXRes,
		XnUInt32	nYRes,
		const XnLabel *	pExternalBuffer = NULL
	)		[inline]

Changes dimensions of the pixel-map.

Parameters:

[in]	nXRes	Number of columns in the map
[in]	nYRes	Number of rows in the map
[in]	pExternalBuffer	Optional. An external buffer to be used. If NULL is passed, a buffer will be allocated.

XnLabel* xn::SceneMetaData::WritableData

(

)

[inline]

Gets a pointer to the writable buffer (see Frame Objects and Metadata Objects).

Reimplemented from xn::OutputMetaData.

xn::LabelMap& xn::SceneMetaData::WritableLabelMap

(

)

[inline]

Gets a light object wrapping the writable label map

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

• XnCppWrapper.h