HitTest Method

Summary

Performs hit-testing on this AnnCurveObject.

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 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

Target Platforms

Reference

AnnCurveObject Class

AnnCurveObject Members

Download our FREE evaluation

Help Version 21.0.2021.7.2

Leadtools.Annotations.Engine Assembly

Introduction

Getting Started

Namespaces

Leadtools.Annotations.Engine Namespace

Assemblies