LEADTOOLS JavaScript (Leadtools.Annotations.Core)
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function Leadtools.Annotations.Core.AnnPointerObject.hitTest( point , hitTestBuffer )
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| Parameter | Type | Description |
|---|---|---|
| point | LeadPointD | The Leadtools.LeadPointD to be tested. |
| hitTestBuffer | double | Threshold buffer value, in pixels. |
| Type | Description |
|---|---|
| boolean | A value that represents the hit-test value; or null if the test point is not on top of this AnnObject. |
The point should be in physical coordinates.
The 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.