IGPlotItemHitTest Method

Test wether the mouse hits a plot item. The default implementation returns null. If you want to have a reaction on mouse click on a curve, return a IHitTestObject.

Namespace: Altaxo.Graph.Gdi.Plot
Assembly: AltaxoBase (in AltaxoBase.dll) Version: 4.8.3179.0 (4.8.3179.0)

Syntax

Copy

IHitTestObject? HitTest(
	IPlotArea layer,
	PointD2D hitpoint
)

Parameters

layer IPlotArea: The layer in which this plot item is drawn into.
hitpoint PointD2D: The point where the mouse is pressed.

Return Value

IHitTestObject
Null if no hit, or a IHitTestObject if there was a hit.

Reference

IGPlotItem Interface

Altaxo.Graph.Gdi.Plot Namespace