Package org.knowm.xchart.standalone.issues

Class TestForIssue585

java.lang.Object

org.knowm.xchart.standalone.issues.TestForIssue585

public class TestForIssue585
extends Object

Demonstrates issue #585 — a symmetric colormap definition produces an asymmetric legend.

The gradient legend bar for the Vertical layout has its LinearGradientPaint "start" point placed fontSize pixels above the actual bottom of the rectangle. This leaves a strip at the bottom that is always clamped to rangeColors[0] (the min colour), making the min-colour area visually larger than the max-colour area even when the colormap and data range are perfectly symmetric.

Two windows open side by side — one for each LegendPosition — so the asymmetry is visible in both orientations. The colourmap intentionally goes blue → dark → blue to make the off-centre midpoint obvious.

Constructor Summary

Constructors

Constructor	Description
TestForIssue585()

Method Summary

Modifier and Type	Method	Description
static HeatMapChart	getChart()
static HeatMapChart	getChartHorizontal()	Horizontal legend — shown for comparison.
static HeatMapChart	getChartVertical()	Vertical legend — bug is visible here: blue band at the bottom is wider than at the top.
static void	main(String[] args)

Methods inherited from class java.lang.Object

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

Constructor Details

TestForIssue585

public TestForIssue585()

Method Details

main

public static void main(String[] args)

getChartVertical

public static HeatMapChart getChartVertical()

Vertical legend — bug is visible here: blue band at the bottom is wider than at the top.

getChartHorizontal

public static HeatMapChart getChartHorizontal()

Horizontal legend — shown for comparison.

getChart

public static HeatMapChart getChart()