CogDisplay.UserPixelTree Property

CogDisplay UserPixelTree Property

Cognex VisionPro 9.20

Returns a coordinate space tree containing coordinate spaces associated with this display control.

Namespace: Cognex.VisionPro.Display
Assembly: Cognex.VisionPro.Display.Controls (in Cognex.VisionPro.Display.Controls.dll) Version: 80.0.0.0 (80.0.0.0)

Syntax

C++

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public virtual CogCoordinateSpaceTree UserPixelTree { get; }

public virtual CogCoordinateSpaceTree UserPixelTree { get; }

Public Overridable ReadOnly Property UserPixelTree As CogCoordinateSpaceTree 
	Get

Public Overridable ReadOnly Property UserPixelTree As CogCoordinateSpaceTree 
	Get

public:
virtual property CogCoordinateSpaceTree^ UserPixelTree {
	CogCoordinateSpaceTree^ get ();
}

public:
virtual property CogCoordinateSpaceTree^ UserPixelTree {
	CogCoordinateSpaceTree^ get ();
}

Property Value

Type: CogCoordinateSpaceTree
The coordinate space tree.

Exceptions

Exception	Condition
AxHost InvalidActiveXStateException	Thrown when the display control is invalid.

Remarks

The root space for this tree is the screen pixels used by this display control, with the origin in the upper-left corner, the positive x-axis extending to the right, and the positive y-axis extending down. You can use this coordinate space tree to make it easier to create display annotations that are independent of the image being displayed in the control. Unlike the UserDisplayTree space, this space reflects the effect of any pan and zoom settings for the display.