如何使用afreechart库自动缩放OHLC图表中的Y轴

问题描述：

我想根据值自动缩放图表Y轴。如何使用afreechart库自动缩放OHLC图表中的Y轴

我确切的问题是解决这个问题的图像，但这就是jfreechart库和我试过的解决方案，但没有奏效。

这是我的代码

 NumberAxis rangeAxis1 = new NumberAxis(); 
     rangeAxis1.setStandardTickUnits(createTickUnits()); 
     rangeAxis1.setAutoTickUnitSelection(true); 
     rangeAxis1.setAutoRange(true); 
     rangeAxis1.setAutoRangeIncludesZero(false); 
     rangeAxis1.setAxisLinePaintType(white); 
     rangeAxis1.setAxisLineStroke(1); 
     rangeAxis1.setTickMarkPaintType(white); 
     rangeAxis1.setTickMarkStroke(1); 
     rangeAxis1.setTickMarkOutsideLength(2); 
     rangeAxis1.setLabelPaintType(white); 
     rangeAxis1.setTickLabelPaintType(white); 
     rangeAxis1.setTickLabelInsets(new RectangleInsets(10, 0, 10, 0)); 
     rangeAxis1.setLimitAble(/*true*/false); 
     rangeAxis1.setLimitRange(20, 70); 


     HighLowRenderer renderer1 = new HighLowRenderer(); 



     renderer1.setBaseOutlinePaintType(white); 
     renderer1.setBaseOutlineStroke(1.0f); 

     renderer1.setOpenTickPaintType(red); 
     renderer1.setCloseTickPaintType(blue); 

     XYPlot subplot1 = new XYPlot(dataset1, null, rangeAxis1, renderer1); 


     subplot1.setDataset(1, dataset3); 
     subplot1.setRenderer(1, renderer3);*/ 

     subplot1.setBackgroundPaintType(black); 
     subplot1.setDomainGridlinePaintType(darkGreen); 
     subplot1.setRangeGridlinePaintType(darkGreen); 
     subplot1.setRangeAxisLocation(AxisLocation.TOP_OR_RIGHT); 
     subplot1.setOutlineVisible(true); 
     subplot1.setOutlinePaintType(white); 
     subplot1.setOutlineStroke(2.0f); 


     ValueAxis timeAxis = new DateAxis("Date"); 
     timeAxis.setAxisLinePaintType(white); 
     timeAxis.setAxisLineStroke(1); 

     timeAxis.setTickMarkPaintType(white); 
     timeAxis.setTickMarkStroke(1); 
     timeAxis.setTickMarkOutsideLength(2); 

     timeAxis.setLabelPaintType(white); 
     timeAxis.setTickLabelPaintType(white); 

     CombinedDomainXYPlot plot = new CombinedDomainXYPlot(timeAxis); 
     plot.setBackgroundPaintType(black); 
     plot.add(subplot1, 2); 

     AFreeChart chart= ChartFactory. 
     createHighLowChart("OHLCPreview","Time","Value",dataset1,false); 
     // setting chart 
     chart.setBackgroundPaintType(white);

答

最后我找到了解决办法....

我其实重写subplot1在用的代码

的最后一行结束

AFreeChart chart= ChartFactory. 
createHighLowChart("OHLCPreview","Time","Value",dataset1,false);

将其替换为

AFreeChart chart = new AFreeChart(
"OHLCPreview", 
AFreeChart.DEFAULT_TITLE_FONT, 
plot, false);

如何使用afreechart库自动缩放OHLC图表中的Y轴

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