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HitTest Method (AnnCurveObject)
Summary
Performs hit-testing on this AnnCurveObject.
Syntax
public override bool HitTest(Leadtools.LeadPointD point,double hitTestBuffer)
Public Overrides Function HitTest( _ByVal point As Leadtools.LeadPointD, _ByVal hitTestBuffer As Double _) As Boolean
public override bool HitTest(Leadtools.LeadPointD point,double hitTestBuffer)
@Override public boolean hitTest(LeadPointD point, double hitTestBuffer)function Leadtools.Annotations.Core.AnnCurveObject.HitTest(point ,hitTestBuffer)
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 AnnCurveObject.
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
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© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
Leadtools.Annotations.Core Assembly
