org.ros.android.view.DistanceView Class Reference

Inheritance diagram for org.ros.android.view.DistanceView:

List of all members.

Public Member Functions
void	currentSpeed (double speed)
	DistanceView (Context context)
	DistanceView (Context context, AttributeSet attrs)
GraphName	getDefaultNodeName ()
void	lockZoom ()
void	onError (Node node, Throwable throwable)
void	onNewMessage (final LaserScan message)
void	onShutdown (Node node)
void	onShutdownComplete (Node node)
void	onStart (ConnectedNode connectedNode)
boolean	onTouch (View v, MotionEvent event)
void	setTopicName (String topicName)
void	setZoomMode (ZoomMode mode)
void	unlockZoom ()
Private Member Functions
double	calculateDistance (float x1, float y1, float x2, float y2)
Private Attributes
double	contactDistance
DistanceRenderer	distanceRenderer
String	laserTopic
double	normalizedZoomValue

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Detailed Description

An OpenGL view that displayed data from a laser scanner (or similar sensors like a kinect). This view can zoom in/out based in one of three modes. The user can change the zoom level through a pinch/reverse-pinch, the zoom level can auto adjust based on the speed of the robot, and the zoom level can also auto adjust based on the distance to the closest object around the robot.

Author:

munjaldesai@google.com (Munjal Desai)

Definition at line 46 of file DistanceView.java.

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Constructor & Destructor Documentation

org.ros.android.view.DistanceView.DistanceView

(

Context

context

)

[inline]

Initialize the rendering surface.

Parameters:

context

Definition at line 74 of file DistanceView.java.

org.ros.android.view.DistanceView.DistanceView	(	Context	context,
		AttributeSet	attrs
	)		[inline]

Definition at line 78 of file DistanceView.java.

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Member Function Documentation

double org.ros.android.view.DistanceView.calculateDistance	(	float	x1,
		float	y1,
		float	x2,
		float	y2
	)		[inline, private]

Definition at line 240 of file DistanceView.java.

void org.ros.android.view.DistanceView.currentSpeed

(

double

speed

)

[inline]

Updates the current speed in distanceRenderer which then can adjust the zoom level in velocity mode.

Parameters:

speed

The linear velocity of the robot.

Definition at line 198 of file DistanceView.java.

GraphName org.ros.android.view.DistanceView.getDefaultNodeName

(

)

[inline]

Implements org::ros::node::NodeMain.

Definition at line 101 of file DistanceView.java.

void org.ros.android.view.DistanceView.lockZoom

(

)

[inline]

Prevents changes to the zoom level.

Definition at line 180 of file DistanceView.java.

void org.ros.android.view.DistanceView.onError	(	Node	node,
		Throwable	throwable
	)		[inline]

Implements org::ros::node::NodeListener.

Definition at line 142 of file DistanceView.java.

void org.ros.android.view.DistanceView.onNewMessage

(

final LaserScan

message

)

[inline]

Definition at line 146 of file DistanceView.java.

void org.ros.android.view.DistanceView.onShutdown

(

Node

node

)

[inline]

Implements org::ros::node::NodeListener.

Definition at line 132 of file DistanceView.java.

void org.ros.android.view.DistanceView.onShutdownComplete

(

Node

node

)

[inline]

Implements org::ros::node::NodeListener.

Definition at line 136 of file DistanceView.java.

void org.ros.android.view.DistanceView.onStart

(

ConnectedNode

connectedNode

)

[inline]

Implements org::ros::node::NodeListener.

Definition at line 106 of file DistanceView.java.

boolean org.ros.android.view.DistanceView.onTouch	(	View	v,
		MotionEvent	event
	)		[inline]

Definition at line 203 of file DistanceView.java.

void org.ros.android.view.DistanceView.setTopicName

(

String

topicName

)

[inline]

Sets the topic that the distance view node should subscribe to.

Parameters:

topicName

Name of the ROS topic.

Definition at line 96 of file DistanceView.java.

void org.ros.android.view.DistanceView.setZoomMode

(

ZoomMode

mode

)

[inline]

Sets the zoom mode to one of the modes in ZoomMode.

Parameters:

mode	The zoom mode that must be set.

Definition at line 173 of file DistanceView.java.

void org.ros.android.view.DistanceView.unlockZoom

(

)

[inline]

Unlocks the zoom allowing it to be changed.

Definition at line 187 of file DistanceView.java.

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Member Data Documentation

double org.ros.android.view.DistanceView.contactDistance [private]

Distance between 2 contacts on the view (in pixels). Used while zooming in/out.

Definition at line 57 of file DistanceView.java.

DistanceRenderer org.ros.android.view.DistanceView.distanceRenderer [private]

An instance of DistanceRenderer that implements GLSurfaceView.Renderer and is used to render the distance view.

Definition at line 67 of file DistanceView.java.

String org.ros.android.view.DistanceView.laserTopic [private]

Topic for the distance scans that this view subscribes to.

Definition at line 52 of file DistanceView.java.

double org.ros.android.view.DistanceView.normalizedZoomValue [private]

Zoom value between 1 and 0. 1 represents maximum zoom in and 0 maximum zoom out.

Definition at line 62 of file DistanceView.java.

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

• DistanceView.java