标签: android-graphview

我使用AChartEngine Api创建了动态折线图,显示了G-Force值的变化.一切正常,但当图形在X轴向前移动时,我必须在X轴上手动滚动才能进一步查看,如果您没有正确使用我,请查看下面的图像.

如何让它在x轴上自动滚动以避免手动滚动？

以下是我的代码

public class GraphActivity extends Activity implements SensorEventListener{

    private LinearLayout lyGforce;


    //=== G-force =======
    private SensorManager mSensorManager;
    private Sensor mAccelerometer;
    private float gOffset;
    private boolean calibrate;
    private static TimeSeries timeSeriesGforce;
    private static XYMultipleSeriesDataset datasetGforce;
    private static XYMultipleSeriesRenderer rendererGforce;
    private static XYSeriesRenderer rendererSeriesGforce;
    private static GraphicalView viewGforce;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mainactivity);

        lyGforce = (LinearLayout) findViewById(R.id.lygforce);

        //=========== G-force =======
        mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); …

嗨,我正在尝试使用此库绘制图表,但其条目静态如下:

LineGraphSeries<DataPoint> series = new LineGraphSeries<DataPoint>(new DataPoint[] {

                        new DataPoint(0, 1),
                        new DataPoint(1, 5),
                        new DataPoint(2, 3),
                        new DataPoint(3, 2),
                        new DataPoint(4, 6)
                });
                graph.addSeries(series);

我如何解决这个接受前的问题.在运行时创建的列表视图元素？基本上我想要这样的东西:

for (int i = 0; i < list.size(); i++) {
LineGraphSeries<DataPoint> series = new LineGraphSeries<DataPoint>(new DataPoint[] {

                        new DataPoint(i, list.getElement()),
});
}

我有一个这样的情节设置:

aHistoryPlot = (XYPlot) findViewById(R.id.plot);
    aHistoryPlot.setRangeBoundaries(0, 255, BoundaryMode.FIXED);
    aHistoryPlot.setDomainBoundaries(0, HISTORY_SIZE, BoundaryMode.FIXED);
    aHistoryPlot.addSeries(YHistorySeries, new LineAndPointFormatter(Color.rgb(100, 200, 100), Color.TRANSPARENT, null));
    aHistoryPlot.getGraphWidget().setMarginTop(10);
    aHistoryPlot.setDomainStepValue(5);
    aHistoryPlot.setTicksPerRangeLabel(3);
    aHistoryPlot.setDomainLabel(getResources().getString(R.string.string_time));
    aHistoryPlot.getDomainLabelWidget().pack();
    aHistoryPlot.setRangeLabel(getResources().getString(R.string.string_value));
    aHistoryPlot.getRangeLabelWidget().pack();
    aHistoryPlot.disableAllMarkup();

如何从图中删除域值？

提前致谢!

我正在使用链接中的一些安卓库.. https://github.com/jjoe64/GraphView-Demos ..我尝试使用实时图形示例,https://github.com/jjoe64/GraphView-Demos/ blob/master/src/com/jjoe64/graphviewdemos/RealtimeGraph.java ...它对我很有用,但我没有问题xy轴刻度设置.在重新运行图表期间加载新数据时,所有xy轴比例值都会根据输入数据值进行更改.

我希望将y轴固定在1到6的范围内,x从1到30固定..每个轴的增量刻度为1 ..这个轴标签值应该总是固定的,图形应该根据输入数据改变.我需要一些固定的实验室.

我发现很难弄清楚如何在 Android 中的图表的 X 轴上实现时间？

这是我的代码：

for (int i = 0; i < listSize; i++) 
            {
                String[] onlyReading = mData.get(i).getReading().split(" ");
                readingList[i] = Double.parseDouble(onlyReading[0]);
                String date = mData.get(i).getUnFormatedDate();
                String[] temp = date.split(" ");
                String[] dateTemp = null;
                String[] timeTemp = null;

                if(temp.length > 0) 
                {
                    dateTemp = temp[0].trim().split("-");
                    timeTemp = temp[1].trim().split(":");

                    Date dateObj = new Date();
                    String year = "0";
                    if(dateTemp != null)
                    {
                        dateObj.setDate(Integer.parseInt(dateTemp[0]));
                        dateObj.setMonth(Integer.parseInt(dateTemp[1]) - 1);
                        year = dateTemp[2].trim();
                        if(dateTemp[2].trim().length() == 4)
                        {
                            year = dateTemp[2].substring(2, 4);
                        } …

目前,下面的代码显示附加的条形图,其中包含小数位数,从2开始.

我的问题是:有没有办法从0开始y轴标签,并将整数增加到数据的最大值？例如,在这,0,1,2,3,4,5？

barData = this.getIntent().getExtras().getString("GraphData");

            GraphViewSeries barGraphSeries = new GraphViewSeries(
                    new GraphViewData[] {
                            new GraphViewData(0, Integer.parseInt(barData
                                    .substring(0, barData.indexOf(",")))),
                            new GraphViewData(1, Integer.parseInt(barData
                                    .substring(barData.indexOf(",") + 1,
                                            barData.length()))) });

            GraphView statGraphView = new BarGraphView(this,
                    "Current Stat Graph");

            statGraphView.getGraphViewStyle().setGridColor(Color.BLACK);
            statGraphView.getGraphViewStyle().setHorizontalLabelsColor(
                    Color.BLACK);
            statGraphView.getGraphViewStyle().setVerticalLabelsColor(
                    Color.BLACK);
            String[] horLabels = { "Correct", "Incorrect" };
            statGraphView.setHorizontalLabels(horLabels);
            statGraphView.getGraphViewStyle().setNumHorizontalLabels(2);
            statGraphView.getGraphViewStyle().setNumVerticalLabels(10);



            statGraphView.addSeries(barGraphSeries);

            LinearLayout layout = (LinearLayout) findViewById(R.id.graph1);
            layout.addView(statGraphView);

我创建了一个LineGraph,它看起来像这样:

但我想填写grap下方的区域,如下所示:

我该如何实现此功能？你能帮助我吗？

我是android 中MPAndroidChart的新用户.谁能帮我 ？

我正在尝试使用GraphView库绘制图形.我的问题是,x轴没有显示,但y轴可以.此外,x轴标签上的值也没有显示出来.

这是我的xml文件:

    <com.jjoe64.graphview.GraphView
        android:id="@+id/graph"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentBottom="true"
        android:layout_alignParentTop="true"
        android:background="#FAFA82" />

和java代码:

double graph1LastXValue = 5d;
GraphView graph = (GraphView) findViewById(R.id.graph);
graph.getGridLabelRenderer().setVerticalAxisTitle("Match Value");
graph.getGridLabelRenderer().setHorizontalAxisTitle("Time/s");
Series2 = new LineGraphSeries<DataPoint>();
mSeries1.setColor(Color.RED);
mSeries1.setThickness(2);
graph.addSeries(mSeries2);
graph.getViewport().setXAxisBoundsManual(true);
graph.getViewport().setMinX(0);
graph.getViewport().setMaxX(100);
graph.getGridLabelRenderer().setGridStyle(GridStyle.BOTH);
plotter(matchValMean);

protected void plotter(Double matchVal) {
matchValue = matchVal;
// TODO Auto-generated method stub
mTimer1 = new Runnable() {
    @Override
     public void run() {
            graph1LastXValue += 1d;
            mSeries1.appendData(new DataPoint(graph1LastXValue, matchValue), true, 100);
            mHandler.postDelayed(this, 1000);
        }
    };
    mHandler.postDelayed(mTimer1, 1000);
}

我没有显示所有代码,因为它很长.提前致谢 :)

我正在对加速度计传感器进行采样，并使用库（4.0.1）实时呈现图表Graph View。

该应用程序运行良好，只是图表错误：

正如您在图片中看到的，Z 轴（洋红色）的值为 ~9.8，但在图表中显示为 ~15，Y 轴（绿色）的值为 0.2，但在图表中我们在零和相同的想法下与 X 轴。

这是我的代码：

SensorManager sensorManager;
TextView tvX, tvY, tvZ;
GraphView graph;
LineGraphSeries<DataPoint> seriesX, seriesY, seriesZ;
long startTime;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_runtime_graph);

    tvX = (TextView) findViewById(R.id.tvAcc_X);    // color : blue
    tvY = (TextView) findViewById(R.id.tvAcc_Y);    // color : green
    tvZ = (TextView) findViewById(R.id.tvAcc_Z);    // color : magenta
    graph = (GraphView) findViewById(R.id.graph);

    seriesX = new LineGraphSeries<>();
    seriesY = new LineGraphSeries<>();
    seriesZ = new LineGraphSeries<>();

    seriesX.setColor(Color.BLUE);
    seriesY.setColor(Color.GREEN);
    seriesZ.setColor(Color.MAGENTA);

    graph.addSeries(seriesX); …