HitTest Method

Summary

Performs hit-testing on this AnnEllipseObject.

Syntax

C++

Java

public override bool HitTest( 
   LeadPointD point, 
   double hitTestBuffer 
)

Public Overrides Function HitTest( _ 
   ByVal point As LeadPointD, _ 
   ByVal hitTestBuffer As Double _ 
) As Boolean

@Override public boolean hitTest( 
   LeadPointD point, 
   double hitTestBuffer 
)

public:  
   virtual bool HitTest( 
      LeadPointD^ point, 
      double hitTestBuffer 
   ) override

Parameters

point
The Leadtools.LeadPointD to be tested.

hitTestBuffer
Threshold buffer value, in pixels.

Return Value

A value that represents the hit-test value; or null if the test point is not on top of this AnnEllipseObject.

Remarks

The point should be in physical coordinates. hitTestBuffer is used to make the test point "bigger" to compensate for errors and provide smoother hit-testing. For example, if buffer is 2, a square with a length of 4 pixels around testPoint will be used to perform the hit-testing.

By default, an annotation object will return true if hit-testing was satisfied. Derived objects can override this method to fine tune the return value.

Requirements

Target Platforms

Reference

AnnEllipseObject Class

AnnEllipseObject Members

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Help Version 20.0.2020.3.31

Leadtools.Annotations.Engine Assembly

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