使用JavaFx的lineChart

Question

私有静态无效printChartAnalysis（analysisResults r）{

    clearAnalsisChartData();
    int [][]analysisResult=r.getAnalysisResult();
    ArrayList<String> versionss=r.getVersions();
    int k=0;
    for(String x:versionss){
        String z=new String();
        for(int i=0;i<x.length();i++){
            if(Character.isDigit(x.charAt(i))){
                z+=x.charAt(i);
            }
        }
        dataLOC.add(new XYChart.Data(z,(int)analysisResult[k][0]));
        dataComm.add(new XYChart.Data(z,(int)analysisResult[k][1]));
        dataCond.add(new XYChart.Data(z,(int)analysisResult[k][2]));
        dataLoops.add(new XYChart.Data(z,(int)analysisResult[k][3]));
        dataMem.add(new XYChart.Data(z,(int)analysisResult[k][4]));
        k++;
    }

    seriesLOC.setData(dataLOC);
    seriesCond.setData(dataCond);
    seriesComm.setData(dataComm);
    seriesLoop.setData(dataLoops);
    seriesMem.setData(dataMem);        
    lineChart.getData().setAll(seriesLOC,seriesComm,seriesCond,seriesLoop,seriesMem);
    lineChart.setTitle("Line Chart for "+r.getSoftwareName());

    for (int i = 0; i < names.length; i++) {
        final CheckBox cb = cbs[i];
        cb.setSelected(true);
    }

}

private static void printChartCost(cocomoResults est){
    clearAnalsisChartData();
    clearCostChartData();
    for(COCOMO cost:est.getVersionsResult()){
         String version=cost.getVersion();
         String z=new String();

         for(int i=0;i<version.length();i++){
            if(Character.isDigit(version.charAt(i))){
                z+=version.charAt(i);
            }
        }

        dataEffort.add(new XYChart.Data(z,(int)cost.getEffort()));
        dataDura.add(new XYChart.Data(z,(int)cost.getDuration()));
        dataStaff.add(new XYChart.Data(z,(int)cost.getStaff()));
        dataProd.add(new XYChart.Data(z,(int)cost.getProductivity()));

    }

    seriesEffort.setData(dataEffort);
    seriesDura.setData(dataDura);
    seriesStaff.setData(dataStaff);
    seriesProd.setData(dataProd);

    lineChart.getData().setAll(seriesEffort,seriesDura,seriesStaff,seriesProd);

}

private static void clearAnalsisChartData(){
    lineChart.getData().removeAll(seriesLOC);
    lineChart.getData().removeAll(seriesComm);
    lineChart.getData().removeAll(seriesCond);
    lineChart.getData().removeAll(seriesLoop);
    lineChart.getData().removeAll(seriesMem);

    dataLOC.clear();
    dataLoops.clear();
    dataComm.clear();
    dataCond.clear();
    dataMem.clear();

}

Answer 1

据我所知

cb.setOnAction(event -> {
   if (lineChart.contains(*NAME_OF_YOUR_ELEMENT*))
      lineChart.remove(*NAME_OF_YOUR_ELEMENT*)
   else
      lineChart.remove(*NAME_OF_YOUR_ELEMENT*)
});