AxisCamera Class Reference

#include <AxisCamera.h>

Inheritance diagram for AxisCamera:

Collaboration diagram for AxisCamera:

List of all members.

Public Member Functions
virtual	~AxisCamera ()
bool	IsFreshImage ()
SEM_ID	GetNewImageSem ()
int	GetImage (Image *imaqImage)
int	GetImage (ColorImage *image)
HSLImage *	GetImage ()
int	CopyJPEG (char **destImage, int &destImageSize, int &destImageBufferSize)
Static Public Member Functions
static AxisCamera &	GetInstance (const char *cameraIP=NULL)
static void	DeleteInstance ()

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Detailed Description

AxisCamera class. This class handles everything about the Axis 206 FRC Camera. It starts up 2 tasks each using a different connection to the camera:

• image reading task that reads images repeatedly from the camera
• parameter handler task in the base class that monitors for changes to parameters and updates the camera

Definition at line 34 of file AxisCamera.h.

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Constructor & Destructor Documentation

AxisCamera::~AxisCamera

(

)

[virtual]

Destructor

Definition at line 46 of file AxisCamera.cpp.

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Member Function Documentation

int AxisCamera::CopyJPEG	(	char **	destImage,
		int &	destImageSize,
		int &	destImageBufferSize
	)

Copy an image into an existing buffer. This copies an image into an existing buffer rather than creating a new image in memory. That way a new image is only allocated when the image being copied is larger than the destination. This method is called by the PCVideoServer class.

Parameters:

	imageData	The destination image.
	numBytes	The size of the destination image.

Returns:

0 if failed (no source image or no memory), 1 if success.

Definition at line 167 of file AxisCamera.cpp.

void AxisCamera::DeleteInstance

(

)

[static]

Called by Java to delete the camera... how thoughtful

Definition at line 85 of file AxisCamera.cpp.

HSLImage * AxisCamera::GetImage

(

)

Instantiate a new image object and fill it with the latest image from the camera.

The returned pointer is owned by the caller and is their responsibility to delete.

Returns:

a pointer to an HSLImage object

Definition at line 149 of file AxisCamera.cpp.

int AxisCamera::GetImage

(

Image *

imaqImage

)

Get an image from the camera and store it in the provided image.

Parameters:

image

The imaq image to store the result in. This must be an HSL or RGB image This function is called by Java.

Returns:

1 upon success, zero on a failure

Definition at line 121 of file AxisCamera.cpp.

int AxisCamera::GetImage

(

ColorImage *

image

)

Get an image from the camera and store it in the provided image.

Parameters:

image

The image to store the result in. This must be an HSL or RGB image

Returns:

1 upon success, zero on a failure

Definition at line 138 of file AxisCamera.cpp.

AxisCamera & AxisCamera::GetInstance

(

const char *

cameraIP = NULL

)

[static]

Get a pointer to the AxisCamera object, if the object does not exist, create it To use the camera on port 2 of a cRIO-FRC, pass "192.168.0.90" to the first GetInstance call.

Returns:

reference to AxisCamera object

Definition at line 70 of file AxisCamera.cpp.

SEM_ID AxisCamera::GetNewImageSem

(

)

Get the semaphore to be used to synchronize image access with camera acquisition

Call semTake on the returned semaphore to block until a new image is acquired.

The semaphore is owned by the AxisCamera class and will be deleted when the class is destroyed.

Returns:

A semaphore to notify when new image is received

Definition at line 108 of file AxisCamera.cpp.

bool AxisCamera::IsFreshImage

(

)

Return true if the latest image from the camera has not been retrieved by calling GetImage() yet.

Returns:

true if the image has not been retrieved yet.

Definition at line 95 of file AxisCamera.cpp.

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

• AxisCamera.h
• AxisCamera.cpp