CogEllipse.SetFromUnitCircleTransform Method

CogEllipse SetFromUnitCircleTransform Method

Cognex VisionPro 9.21

Set the geometry of this ellipse from the given linear transform that maps the unit circle to an ellipse. The unit circle is a circle centered at (0,0) with a radius of one.

Namespace: Cognex.VisionPro
Assembly: Cognex.VisionPro.Core (in Cognex.VisionPro.Core.dll) Version: 83.0.0.0

Syntax

C++

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public void SetFromUnitCircleTransform(
	CogTransform2DLinear ellipseFromUnitCircle
)

public void SetFromUnitCircleTransform(
	CogTransform2DLinear ellipseFromUnitCircle
)

Public Sub SetFromUnitCircleTransform ( 
	ellipseFromUnitCircle As CogTransform2DLinear
)

Public Sub SetFromUnitCircleTransform ( 
	ellipseFromUnitCircle As CogTransform2DLinear
)

public:
void SetFromUnitCircleTransform(
	CogTransform2DLinear^ ellipseFromUnitCircle
)

public:
void SetFromUnitCircleTransform(
	CogTransform2DLinear^ ellipseFromUnitCircle
)

Parameters

ellipseFromUnitCircle: Type: Cognex.VisionPro CogTransform2DLinear
The transform that maps the unit circle arc to this ellipse.

Events

Event Type	Reason
CogEllipse Changed	Fires when the shape changes. The following state flags may be affected:

Event Type

Reason

CogEllipse Changed

Fires when the shape changes.

The following state flags may be affected:

Exceptions

Exception	Condition
ArgumentException	ellipseFromUnitCircle is NULL.

Remarks

Sets the geometry of this ellipse from the given linear transform that maps the unit circle to an ellipse. The unit circle is a circle centered at (0,0) with a radius of one.

The unit circle space is a child space of this shape.

You can map positions in child space to the parent space using the ellipseFromUnitCircle transform. You can map from parent space to child space using the inverse transform.