图表中的数据集未正确显示

时间：2012-02-15 05:36:52

标签： android achartengine

实际上我创建了一个x轴和两个y轴的图形。问题是当我用y轴绘制具有相同数据集的图形时，它不重叠。我的意思是说，如果我使用左侧y轴和x轴绘制图形，其值为x（1,2,3,4,5）和y（10,20,30， 40,50）它绘制了沿x和y轴的图形。类似地，当我使用右y轴和x轴绘制具有相同相同值的图形时，则不是重叠而是在不同位置绘制图形。为什么会这样。我已经发送了屏幕截图和我用于绘制此图表的代码。如果有人知道请建议我....

绘制图表的代码 

public class ChartEngineActivity extends Activity 
{
private GraphicalView mChartView;
private XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(2);
private XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();

@Override
protected void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    this.requestWindowFeature(Window.FEATURE_NO_TITLE); 
    setContentView(R.layout.chart_activity);                

    List<double[]> x = new ArrayList<double[]>();
    x.add(new double[] {1, 2, 3, 4, 5});

    List<double[]> values = new ArrayList<double[]>();
    values.add(new double[] {10, 20, 30, 40, 50});

    int[] colors = new int[] { Color.BLUE,Color.YELLOW};
    PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.DIAMOND};

    renderer = new XYMultipleSeriesRenderer(2);
    setRenderer(renderer, colors, styles);

    int length = renderer.getSeriesRendererCount();
    for (int i = 0; i < length; i++) 
    {
      ((XYSeriesRenderer) renderer.getSeriesRendererAt(i)).setFillPoints(true);
    }       

    renderer.setChartTitle("Weight / Temperature");
    renderer.setXLabels(12);
    renderer.setXTitle("Month");        
    renderer.setXAxisMin(1);
    renderer.setXAxisMax(12);
    renderer.setXLabelsAlign(Align.CENTER);


    renderer.setYLabels(12);  
    renderer.setYTitle("Weight", 0);
    renderer.setYTitle("Temperature", 1);
    renderer.setYAxisMin(10, 0);
    renderer.setYAxisMax(60,0);
    renderer.setYAxisMin(10, 1);
    renderer.setYAxisMax(60,1);
    renderer.setYAxisAlign(Align.LEFT, 0);
    renderer.setYAxisAlign(Align.RIGHT, 1);
    renderer.setYLabelsAlign(Align.LEFT, 0);
    renderer.setYLabelsAlign(Align.RIGHT, 1);

    renderer.setAxesColor(Color.LTGRAY);
    renderer.setLabelsColor(Color.LTGRAY);         
    renderer.setShowGrid(true);
    renderer.setGridColor(Color.GRAY);
    renderer.setZoomButtonsVisible(true);
    renderer.setPanLimits(new double[] { 0, 12, 0, 12 });

    dataset = buildDataset(new String[] {"Body Weight"}, x, values);
    values.clear();     
    values.add(new double[] {10, 20, 30, 40, 50});
    addXYSeries(dataset, new String[] {"Body Temperature"}, x, values, 1);
}

protected void setRenderer(XYMultipleSeriesRenderer renderer, int[] colors, PointStyle[] styles) 
{
    renderer.setAxisTitleTextSize(16);
    renderer.setChartTitleTextSize(20);
    renderer.setLabelsTextSize(15);
    renderer.setLegendTextSize(15);
    renderer.setPointSize(5f);
    renderer.setMargins(new int[] { 20, 30, 15, 20 });
    int length = colors.length;

    for (int i = 0; i < length; i++) 
    {
        XYSeriesRenderer r = new XYSeriesRenderer();
        r.setColor(colors[i]);
        r.setPointStyle(styles[i]);
        renderer.addSeriesRenderer(r);
    }
}

protected XYMultipleSeriesDataset buildDataset(String[] titles, List<double[]> xValues,
        List<double[]> yValues) 
{
    XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
    addXYSeries(dataset, titles, xValues, yValues, 0);
    return dataset;
}

public void addXYSeries(XYMultipleSeriesDataset dataset, String[] titles, List<double[]> xValues,
        List<double[]> yValues, int scale) 
{
    int length = titles.length;
    for (int i = 0; i < length; i++) 
    {
        XYSeries series = new XYSeries(titles[i], scale);
        double[] xV = xValues.get(i);
        double[] yV = yValues.get(i);
        int seriesLength = xV.length;
        for (int k = 0; k < seriesLength; k++) 
        {
            series.add(xV[k], yV[k]);
        }
        dataset.addSeries(series);
    }
}   

@Override
public void onConfigurationChanged(Configuration newConfig) 
{
  super.onConfigurationChanged(newConfig);
  Intent intentNotes = new Intent(this, MainActivity.class);
  this.startActivity(intentNotes);  
  finish();
}

@Override
protected void onResume() 
{
    super.onResume();
    if (mChartView == null) 
    {
        LinearLayout layout = (LinearLayout) findViewById(R.id.chart);
        mChartView = ChartFactory.getLineChartView(this, dataset, renderer);
        renderer.setClickEnabled(true);
        renderer.setSelectableBuffer(100);

        mChartView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mChartView.getCurrentSeriesAndPoint();              
            }
        });


        layout.addView(mChartView, new LayoutParams(LayoutParams.FILL_PARENT,
                LayoutParams.FILL_PARENT));
    } 
    else 
    {
        mChartView.repaint();
    }
}
}

出现的图表的屏幕截图

enter image description here

1 个答案:

答案 0 :(得分：0)

看起来这是achartengine中的一个错误。这也发生在他们的应用程序的演示中。看起来右边的点不符合所有渲染器的样式。

如果您的图表是静态的，您可以尝试使用x轴max和min进行调整。这似乎有点移动它。

renderer.setXAxisMax(0);
renderer.setXAxisMin(0);

编辑：

试试这个

@Override
protected void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    this.requestWindowFeature(Window.FEATURE_NO_TITLE); 
    setContentView(R.layout.chart_activity);                

    List<double[]> x = new ArrayList<double[]>();
    x.add(new double[] {1, 2, 3, 4, 5});

    List<double[]> values = new ArrayList<double[]>();
    values.add(new double[] {10, 20, 30, 40, 50});

    int[] colors = new int[] { Color.BLUE,Color.YELLOW,Color.YELLOW};
        PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.DIAMOND,
    PointStyle.TRIANGLE, PointStyle.SQUARE };

    renderer = new XYMultipleSeriesRenderer(3);
    setRenderer(renderer, colors, styles);

    int length = renderer.getSeriesRendererCount();
    for (int i = 0; i < length; i++) 
    {
      ((XYSeriesRenderer) renderer.getSeriesRendererAt(i)).setFillPoints(true);
    }       

    renderer.setChartTitle("Weight / Temperature");
    renderer.setXLabels(12);
    renderer.setXTitle("Month");        
    renderer.setXAxisMin(1);
    renderer.setXAxisMax(12);
    renderer.setXLabelsAlign(Align.CENTER);


    renderer.setYLabels(12);  
    renderer.setYTitle("Weight", 0);
    renderer.setYTitle("Temperature", 1);
    renderer.setYAxisMin(10, 0);
    renderer.setYAxisMax(60,0);
    renderer.setYAxisMin(10, 1);
    renderer.setYAxisMax(60,1);
    renderer.setYAxisAlign(Align.LEFT, 0);
    renderer.setYAxisAlign(Align.RIGHT, 1);
    renderer.setYLabelsAlign(Align.LEFT, 0);
    renderer.setYLabelsAlign(Align.RIGHT, 1);

    renderer.setAxesColor(Color.LTGRAY);
    renderer.setLabelsColor(Color.LTGRAY);         
    renderer.setShowGrid(true);
    renderer.setGridColor(Color.GRAY);
    renderer.setZoomButtonsVisible(true);
    renderer.setPanLimits(new double[] { 0, 12, 0, 12 });

    dataset = buildDataset(new String[] {"Body Weight"}, x, values);
    values.clear();
    values.add(new double[] {10, 20, 30, 40, 50});  //whatever values you want to set 
    addXYSeries(dataset, new String[] { "Body Temperature" }, x, values, 0);
    values.clear();     
    values.add(new double[1]);
    addXYSeries(dataset, new String[] {"Body Temperature"}, x, values, 1);
 }

这是我的演示代码

public Intent execute(Context context) {
    String[] titles = new String[] { "Crete" };
    List<double[]> x = new ArrayList<double[]>();
    for (int i = 0; i < titles.length; i++) {
        x.add(new double[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 });
    }
    List<double[]> values = new ArrayList<double[]>();
    values.add(new double[] { 12.3, 12.5, 13.8, 16.8, 20.4, 24.4, 26.4, 26.1, 23.6, 20.3, 17.2,
    13.9 });
    int[] colors = new int[] { Color.BLUE, Color.YELLOW,  Color.YELLOW,};
    PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.DIAMOND, PointStyle.TRIANGLE, PointStyle.SQUARE };
    XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(3);
    setRenderer(renderer, colors, styles);
    int length = renderer.getSeriesRendererCount();
    for (int i = 0; i < length; i++) {
      ((XYSeriesRenderer) renderer.getSeriesRendererAt(i)).setFillPoints(true);
    }
    setChartSettings(renderer, "Average temperature", "Month", "Temperature", 0.5, 12.5, 0, 32, Color.LTGRAY, Color.LTGRAY);
    renderer.setXLabels(12);
    renderer.setYLabels(10);
    renderer.setShowGrid(true);
    renderer.setYLabelsAlign(Align.RIGHT);
    renderer.setZoomButtonsVisible(true);
    renderer.setPanLimits(new double[] { -10, 20, -10, 40 });
    renderer.setZoomLimits(new double[] { -10, 20, -10, 40 });

    renderer.setYTitle("Hours", 1);
    renderer.setYAxisAlign(Align.RIGHT, 1);
    renderer.setYLabelsAlign(Align.LEFT, 1);
    renderer.setXLabelsAlign(Align.RIGHT);
    XYMultipleSeriesDataset dataset = buildDataset(titles, x, values);
    values.clear();
    values.add(new double[] { 12.3, 4.9, 5.9, 8.8, 10.8, 11.9, 13.6, 12.8, 11.4, 9.5, 7.5, 5.5 });
    addXYSeries(dataset, new String[] { "Sunshine hours" }, x, values, 0);
    x.clear();
    x.add(new double[1]);
    addXYSeries(dataset, new String[] { "Sunshine hours" }, x, values, 1);
    Intent intent = ChartFactory.getLineChartIntent(context, dataset, renderer, "Average temperature");
    return intent;
}
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