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images.ui.graphics.events.SlicePlanesChangedEventData Class

Namespace: images.ui.graphics.events
Superclasses: event.EventData

Event data is passed when slice plane is being interactively moved

Renamed from images.ui.graphics3d.events.SlicePlanesChangedEventData in R2024b

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Description

The images.ui.graphics.events.SlicePlanesChangedEventData class is the class passed to listeners when the slice planes of a Volume object is moving. When the object triggers an event using the notify handle class method, MATLAB® assigns values to the properties of a SlicePlanesChangedEventData object and passes that object to the listener callback function (the event handler).

The images.ui.graphics.events.SlicePlanesChangedEventData class is a handle class.

Class Attributes

ConstructOnLoad
true
HandleCompatible
true

For information on class attributes, see Class Attributes.

Creation

The notify handle class method creates a SlicePlanesChangedEventData object when called to trigger an event.

Properties

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Event source, specified as a handle to the Volume object that triggered the event.

Attributes:

GetAccess
public
SetAccess
private
GetObservable
true
SetObservable
true

Name of the event, specified as a character vector.

Attributes:

GetAccess
public
SetAccess
private
GetObservable
true
SetObservable
true

Data Types: char

Slice planes, specified as an N-by-4 matrix where each row corresponds to the equation for a slice plane. The maximum number of slice planes N is 6. Each slice plane is specified as a 1-by-4 vector in world coordinates following the Hessian normal form where the first three values represent the plane's normal vector and the fourth value is the signed distance from the origin to the plane.

Attributes:

GetAccess
public
SetAccess
private
GetObservable
true
SetObservable
true

Data Types: char

Previous slice planes, specified as an N-by-4 matrix where each row corresponds to the equation for a slice plane.

Attributes:

GetAccess
public
SetAccess
private
GetObservable
true
SetObservable
true

Data Types: char

Examples

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Get the event properties from the images.ui.graphics.events.SlicePlanesChangedEventData object passed to this callback function when the event is triggered.

function myCallbk(s,evtData)
   eventSource = evtData.Source;
   eventName = evtData.EventName;
   currPlanes = evtData.SlicePlanes;
   prevPlanes = evtData.PreviousSlicePlanes;
   ...
end

Version History

Introduced in R2022b

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See Also

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