Class HitTestUtils

java.lang.Object

com.arbergashi.charts.internal.HitTestUtils

public final class HitTestUtils
extends Object

Internal utility for fast, allocation-free hit-testing.

Since:

2025-06-01

Version:

1.0.0

Author:

Arber Gashi

Method Summary

Modifier and Type	Method	Description
static Optional<Integer>	nearestPointIndex(Point2D pixel, ChartModel model, PlotContext context)	Finds the index of the nearest data point to a given pixel location.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

nearestPointIndex

public static Optional<Integer> nearestPointIndex(Point2D pixel,
 ChartModel model,
 PlotContext context)

Finds the index of the nearest data point to a given pixel location. This method is zero-allocation and works directly on the model's primitive data.

Parameters:

pixel - The pixel coordinate to test against.

model - The data model.

context - The plot context for coordinate transformation.

Returns:

An Optional containing the index of the nearest point, or empty if not found.