Bad signatures on axis (numbers should be rounded)

[art-shen]

Example:

[timmolter]

Thanks for reporting the bug. Can you please try using the latest snapshot jars?

https://oss.sonatype.org/content/groups/public/com/xeiam/xchart/xchart/2.4.1-SNAPSHOT/

If that doesn't contain the bug fix already, could you please provide a single class chart demo which shows the plot above?

[art-shen]

Checked latest snapshot. Problem still exists.

Code to reproduce:

    public static void main(String[] args) throws Exception
    {
        final Chart chart = new Chart(1920, 1080);
        final StyleManager styleManager = chart.getStyleManager();
        styleManager.setChartType(ChartType.Bar);
        styleManager.setBarWidthPercentage(.8);
        styleManager.setBarsOverlapped(true);
        styleManager.setLegendPosition(LegendPosition.InsideNE);
        styleManager.setLegendVisible(false);

        final double[] keys = {3.01, 3.02, 3.05, 3.15, 3.19, 3.22, 3.27, 3.31, 3.34, 3.35, 3.37, 3.38, 3.39, 3.42, 3.47, 3.49, 3.6, 3.65, 3.7, 3.71, 3.76, 3.8, 3.82, 3.85, 3.86, 3.88, 3.9, 3.95, 4.01, 4.03, 4.04, 4.09, 4.11, 4.15, 4.22, 4.23, 4.24, 4.25, 4.34, 4.37, 4.45, 4.53, 4.54, 4.59, 4.61, 4.65, 4.66, 4.67, 4.68, 4.69, 4.71, 4.74, 4.77, 4.83, 4.87, 4.89, 4.9, 4.95, 4.96, 4.97, 5.0, 5.01, 5.05, 5.1, 5.11, 5.17, 5.22, 5.25, 5.26, 5.3, 5.31, 5.36, 5.4, 5.42, 5.47, 5.61, 5.7, 5.72, 5.73, 5.75, 5.82, 5.89, 5.93, 5.98, 6.04, 6.09, 6.12, 6.13, 6.14, 6.15, 6.19, 6.29, 6.35, 6.41, 6.53, 6.54, 6.58, 6.6, 6.62, 6.74, 6.75, 6.79, 6.83, 6.84, 6.97, 7.03, 7.06, 7.08, 7.09, 7.22, 7.25, 7.27, 7.3, 7.31, 7.41, 7.48, 7.49, 7.51, 7.52, 7.65, 7.66, 7.7, 7.71, 7.74, 7.77, 7.78, 7.89, 7.9, 7.95, 7.96, 8.0, 8.01, 8.04, 8.06, 8.11, 8.15, 8.32, 8.35, 8.38, 8.43, 8.45, 8.46, 8.47, 8.49, 8.52, 8.53, 8.6, 8.61, 8.66, 8.72, 8.79, 8.84, 8.91, 8.92, 8.95, 9.04, 9.05, 9.18, 9.19, 9.22, 9.26, 9.29, 9.33, 9.4, 9.45, 9.47, 9.53, 9.59, 9.7, 9.72, 9.83, 9.86, 9.95, 9.96};
        final double[] values = {0, 0, 0, 1, 1, 1, 1, 2, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 2, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 2, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 2, 1, 1, 1, 2, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 2, 0};

        chart.addSeries("Distribution", keys, values);
        BitmapEncoder.saveBitmap(chart, "example", BitmapFormat.PNG);
    }

Also latest snapshot fails to save simple (scatter + lines, not bar) charts with:

java.lang.NullPointerException
    at java.awt.geom.Rectangle2D.intersect(Rectangle2D.java:735)
    at java.awt.geom.Rectangle2D$Double.createIntersection(Rectangle2D.java:464)
    at com.xeiam.xchart.internal.chartpart.PlotContentLineChart.paint(PlotContentLineChart.java:55)
    at com.xeiam.xchart.internal.chartpart.Plot.paint(Plot.java:84)
    at com.xeiam.xchart.internal.chartpart.ChartPainter.paint(ChartPainter.java:111)
    at com.xeiam.xchart.Chart.paint(Chart.java:102)
    at com.xeiam.xchart.BitmapEncoder.getBufferedImage(BitmapEncoder.java:199)
    at com.xeiam.xchart.BitmapEncoder.saveBitmap(BitmapEncoder.java:67)

It worked normally in 2.4.0

[timmolter]

Interesting. It only fails when saving bitmaps, but not showing in a JPanel. I'll fix it...

[timmolter]

Nevermind. It occurs with very large charts, in JPanel or saved as bitmap.

[timmolter]

Issue fixed. Please test out with newest snapshots.

[timmolter]

I fixed the other bug too. Please test. Thanks!

[art-shen]

Seems to be all right now. Thank you!

[timmolter]

Thank you!

[art-shen]

This problem is reproduced again (xchart 2.4.2). Can be on each axis.

Code example for x-axis:

    public static void main(String[] args) throws Exception
    {
        final Chart chart = new Chart(1920, 1080);
        final StyleManager styleManager = chart.getStyleManager();
        styleManager.setLegendPosition(LegendPosition.InsideNW);
        styleManager.setLegendVisible(false);

        final double[] keys = {101.6829700157669, 102.4741546172069, 101.56112372430265, 102.29668967750219, 102.1156928915296, 102.96288807133006, 102.85820232291313, 102.70416779932134, 102.75666703633065, 102.54695164724063, 102.64530701963236, 101.42229521418183, 102.6239220187132, 102.65392830689318, 101.3519528210374, 102.29890454069181, 101.45011555581048, 102.80876656547879, 102.9487829236201, 102.65658212119392, 102.5621808062546, 102.54679368788584, 101.44415451644835, 101.52360532420516, 102.7494132740427, 103.03755466140984, 102.75544822301157, 102.47525429542132, 102.63811088590982, 102.59191775294347, 101.32048881637581, 101.44482698818119, 102.80932781766394, 101.38219670988731, 101.46941028338044, 102.66645765488023, 101.79878506072832, 102.12919834900144, 102.65694786373456, 101.34087876032368, 102.35962292551396, 102.73324077985815, 101.6331900389947, 102.68657071464266, 102.31073017053264, 102.95034563173265, 101.56466092390214, 101.44263290542328, 102.54872192620866, 101.51961724673545, 101.56592215239088, 102.62299979115573, 102.16037884019369, 102.76241468528423, 103.06247033542299, 102.50392407673121, 102.71485878177548, 102.30595719462644, 101.83799733593067, 102.64446820738182, 102.95845141559543, 101.44913643540103, 102.62302475018619, 101.35064046209624, 102.49385977096229, 102.47902987190186, 102.6192546853896, 101.31787966105605, 102.61902499800594, 102.75304600782704, 102.66323038080031, 102.62927538605312, 101.41262366698777, 103.06302964768331, 103.01984694209135, 101.54079454702787, 101.7432632007971, 102.64746484983125, 102.94083129713017, 101.38693917529486, 102.28688939180357, 101.77714391046378, 102.61582509980576, 102.889235861335, 102.50686276405479, 103.09822940528373, 102.58948098022869, 102.70749156936542, 102.64387765680111, 102.75465208779484, 102.36218073405826};
        final double[] values = {40.37, 40.59, 40.31, 40.4, 40.39, 40.52, 40.47, 40.56, 40.46, 40.53, 40.58, 40.34, 40.55, 40.58, 40.33, 40.44, 40.36, 40.57, 40.48, 40.53, 40.55, 40.53, 40.3, 40.31, 40.45, 40.49, 40.47, 40.59, 40.55, 40.55, 40.35, 40.32, 40.57, 40.33, 40.34, 40.57, 40.38, 40.39, 40.53, 40.33, 40.41, 40.56, 40.37, 40.46, 40.44, 40.47, 40.31, 40.36, 40.55, 40.36, 40.31, 40.6, 40.39, 40.46, 40.49, 40.42, 40.58, 40.44, 40.38, 40.53, 40.5, 40.32, 40.6, 40.33, 40.41, 40.41, 40.53, 40.35, 40.57, 40.46, 40.56, 40.55, 40.34, 40.49, 40.51, 40.32, 40.37, 40.57, 40.5, 40.35, 40.43, 40.38, 40.58, 40.52, 40.59, 40.49, 40.55, 40.56, 40.53, 40.47, 40.41};
        chart.addSeries("Results", keys, values).setLineStyle(SeriesLineStyle.NONE);

        BitmapEncoder.saveBitmap(chart, "example", BitmapFormat.PNG);
    }

Screen with another example:

[timmolter]

Thanks. I'll fix it now.