Java ScatterData类代码示例

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
protected ScatterData generateScatterData(int dataSets, float range, int count) {
    
    ArrayList<IScatterDataSet> sets = new ArrayList<IScatterDataSet>();
    
    ScatterChart.ScatterShape[] shapes = ScatterChart.ScatterShape.getAllDefaultShapes();
    
    for(int i = 0; i < dataSets; i++) {
       
        ArrayList<Entry> entries = new ArrayList<Entry>();
        
        for(int j = 0; j < count; j++) {        
            entries.add(new Entry(j, (float) (Math.random() * range) + range / 4));
        }
        
        ScatterDataSet ds = new ScatterDataSet(entries, getLabel(i));
        ds.setScatterShapeSize(12f);
        ds.setScatterShape(shapes[i % shapes.length]);
        ds.setColors(ColorTemplate.COLORFUL_COLORS);
        ds.setScatterShapeSize(9f);
        sets.add(ds);
    }
    
    ScatterData d = new ScatterData(sets);
    d.setValueTypeface(tf);
    return d;
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
protected ScatterData generateScatterData() {

        ScatterData d = new ScatterData();

        ArrayList<Entry> entries = new ArrayList<Entry>();

        for (float index = 0; index < itemcount; index += 0.5f)
            entries.add(new Entry(index + 0.25f, getRandom(10, 55)));

        ScatterDataSet set = new ScatterDataSet(entries, "Scatter DataSet");
        set.setColors(ColorTemplate.MATERIAL_COLORS);
        set.setScatterShapeSize(7.5f);
        set.setDrawValues(false);
        set.setValueTextSize(10f);
        d.addDataSet(set);

        return d;
    }
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
private void setData() {

        RealmResults<RealmDemoData> result = mRealm.where(RealmDemoData.class).findAll();

        RealmScatterDataSet<RealmDemoData> set = new RealmScatterDataSet<RealmDemoData>(result, "xValue", "yValue");
        set.setLabel("Realm ScatterDataSet");
        set.setScatterShapeSize(9f);
        set.setColor(ColorTemplate.rgb("#CDDC39"));
        set.setScatterShape(ScatterChart.ScatterShape.CIRCLE);

        ArrayList<IScatterDataSet> dataSets = new ArrayList<IScatterDataSet>();
        dataSets.add(set); // add the dataset

        // create a data object with the dataset list
        ScatterData data = new ScatterData(dataSets);
        styleData(data);

        // set data
        mChart.setData(data);
        mChart.animateY(1400, Easing.EasingOption.EaseInOutQuart);
    }
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
protected ScatterData generateScatterData(int dataSets, float range, int count) {
    
    ArrayList<IScatterDataSet> sets = new ArrayList<IScatterDataSet>();
    
    ScatterShape[] shapes = ScatterChart.getAllPossibleShapes();
    
    for(int i = 0; i < dataSets; i++) {
       
        ArrayList<Entry> entries = new ArrayList<Entry>();
        
        for(int j = 0; j < count; j++) {        
            entries.add(new Entry((float) (Math.random() * range) + range / 4, j));
        }
        
        ScatterDataSet ds = new ScatterDataSet(entries, getLabel(i));
        ds.setScatterShapeSize(12f);
        ds.setScatterShape(shapes[i % shapes.length]);
        ds.setColors(ColorTemplate.COLORFUL_COLORS);
        ds.setScatterShapeSize(9f);
        sets.add(ds);
    }
    
    ScatterData d = new ScatterData(ChartData.generateXVals(0, count), sets);
    d.setValueTypeface(tf);
    return d;
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
protected ScatterData generateScatterData() {

        ScatterData d = new ScatterData();

        ArrayList<Entry> entries = new ArrayList<Entry>();

        for (int index = 0; index < itemcount; index++)
            entries.add(new Entry(getRandom(20, 15), index));

        ScatterDataSet set = new ScatterDataSet(entries, "Scatter DataSet");
        set.setColor(Color.GREEN);
        set.setScatterShapeSize(7.5f);
        set.setDrawValues(false);
        set.setValueTextSize(10f);
        d.addDataSet(set);

        return d;
    }
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
/**
 * Create dataset to be displayed in chart legend
 * @return CombinedData representing dummy data for a legend
 */
private CombinedData buildDummyDataForLegend(){
  CombinedData combinedData = new CombinedData();
  float xIndex = 1.5f;
  float close = 13;
  float open = 26f;
  float shadowH = 30.33f;
  float shadowL = -2.05f;
  float average = 20f;
  CandleData candleData = generateCandleData(xIndex, shadowH, shadowL, open, close, "EMU HI/LO" );
  ScatterData scatterData = generateScatterData(average, "EMU Mean");

  LineData s1 = generateOceanHiLo(close, open, "Ocean HI/LO");
  combinedData.setData(s1);
  combinedData.setData(candleData);
  combinedData.setData(scatterData);
  return combinedData;
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
/**
 * Build a CombinedData object containing temperature data
 * @param observation - EMUObservation
 * @param stat - EMUStat
 * @return - CombinedData
 */
private CombinedData buildTempData(EMUObservation observation, EMUStat stat){
  CombinedData combinedData = new CombinedData();
  if (stat.getTemp_max() == null || stat.getTemp_min() == null || stat.getTemp_mean() == null || observation.getTemperature() == null){
    return combinedData;
  }
  float xIndex = 1.5f;
  float close = (float) stat.getTemp_min().doubleValue();
  float open = (float) stat.getTemp_max().doubleValue();
  float shadowH = (float)mDataManager.getMaxTemperatureFromSummary().doubleValue();   // 30.33f; // Greatest max temp from summary table
  float shadowL = (float) mDataManager.getMinTemperatureFromSummary().doubleValue();  // -2.05f; // Lowest min temp from summary table

  float averageTemp = (float)observation.getTemperature().doubleValue();
  Log.i("SummaryChartPresenter", "Temperature: Ocean high = " + shadowH + " ocean low = "+ shadowL + " emu min = " + close + " emu max = "+ open + " emu mean for location = "+ averageTemp);

  combinedData.setData(generateCandleData(xIndex, shadowH, shadowL, open, close, TEMPERATURE ));
  ScatterData sdata = generateScatterData(averageTemp, TEMPERATURE);
  combinedData.setData(sdata);
  return  combinedData;
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
private void drawLatencyChart(List<Entry> phoneEntriesShifted, List<Entry> waltEntries) {
    final ScatterDataSet dataSetWalt =
            new ScatterDataSet(waltEntries, "WALT Events");
    dataSetWalt.setColor(Color.BLUE);
    dataSetWalt.setScatterShape(ScatterChart.ScatterShape.CIRCLE);
    dataSetWalt.setScatterShapeSize(8f);

    final ScatterDataSet dataSetPhoneShifted =
            new ScatterDataSet(phoneEntriesShifted, "Phone Events Shifted");
    dataSetPhoneShifted.setColor(Color.RED);
    dataSetPhoneShifted.setScatterShapeSize(10f);
    dataSetPhoneShifted.setScatterShape(ScatterChart.ScatterShape.X);

    final ScatterData scatterData = new ScatterData(dataSetWalt, dataSetPhoneShifted);
    final Description desc = new Description();
    desc.setText("");
    desc.setTextSize(12f);
    latencyChart.setDescription(desc);
    latencyChart.setData(scatterData);
    latencyChart.invalidate();
    latencyChartLayout.setVisibility(View.VISIBLE);
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
@Override
public void drawData(Canvas c) {

    ScatterData scatterData = mChart.getScatterData();

    for (IScatterDataSet set : scatterData.getDataSets()) {

        if (set.isVisible())
            drawDataSet(c, set);
    }
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
@Override
public void initBuffers() {

    ScatterData scatterData = mChart.getScatterData();

    mScatterBuffers = new ScatterBuffer[scatterData.getDataSetCount()];

    for (int i = 0; i < mScatterBuffers.length; i++) {
        IScatterDataSet set = scatterData.getDataSetByIndex(i);
        mScatterBuffers[i] = new ScatterBuffer(set.getEntryCount() * 2);
    }
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
/**
 * Prepare ScatterData object
 * @param averageValue
 * @param seriesName
 * @return ScatterData
 */
private ScatterData generateScatterData(float averageValue,  String seriesName){
  ScatterData d = new ScatterData();
  ArrayList<Entry> entries = new ArrayList<>();
  entries.add(new Entry(1.5f, averageValue));
  ScatterDataSet set = new ScatterDataSet(entries, seriesName);
  set.setColor(Color.parseColor("#FF4081"));
  set.setScatterShape(ScatterChart.ScatterShape.SQUARE);
  set.setScatterShapeSize(15f);
  set.setDrawValues(false);
  set.setValueTextSize(10f);
  d.addDataSet(set);
  return  d;
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
@Override
public void initBuffers() {

    ScatterData scatterData = mChart.getScatterData();

    mScatterBuffers = new ScatterBuffer[scatterData.getDataSetCount()];

    for (int i = 0; i < mScatterBuffers.length; i++) {
        ScatterDataSet set = scatterData.getDataSetByIndex(i);
        mScatterBuffers[i] = new ScatterBuffer(set.getEntryCount() * 2);
    }
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
@Override
public void drawData(Canvas c) {

    ScatterData scatterData = mChart.getScatterData();

    for (ScatterDataSet set : scatterData.getDataSets()) {

        if (set.isVisible())
            drawDataSet(c, set);
    }
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
private void drawLatencyGraph(double[] ft, double[] fy, double[] lt, double averageBestShift) {
    final ArrayList<Entry> touchEntries = new ArrayList<>();
    final ArrayList<Entry> laserEntries = new ArrayList<>();
    final double[] laserT = new double[lt.length];
    for (int i = 0; i < ft.length; i++) {
        touchEntries.add(new Entry((float) ft[i], (float) fy[i]));
    }
    for (int i = 0; i < lt.length; i++) {
        laserT[i] = lt[i] + averageBestShift;
    }
    final double[] laserY = Utils.interp(laserT, ft, fy);
    for (int i = 0; i < laserY.length; i++) {
        laserEntries.add(new Entry((float) laserT[i], (float) laserY[i]));
    }

    final ScatterDataSet dataSetTouch = new ScatterDataSet(touchEntries, "Touch Events");
    dataSetTouch.setScatterShape(ScatterChart.ScatterShape.CIRCLE);
    dataSetTouch.setScatterShapeSize(8f);

    final ScatterDataSet dataSetLaser = new ScatterDataSet(laserEntries,
            String.format(Locale.US, "Laser Events  Latency=%.1f ms", averageBestShift));
    dataSetLaser.setColor(Color.RED);
    dataSetLaser.setScatterShapeSize(10f);
    dataSetLaser.setScatterShape(ScatterChart.ScatterShape.X);

    final ScatterData scatterData = new ScatterData(dataSetTouch, dataSetLaser);
    final Description desc = new Description();
    desc.setText("Y-Position [pixels] vs. Time [ms]");
    desc.setTextSize(12f);
    latencyChart.setDescription(desc);
    latencyChart.setData(scatterData);
    latencyChartLayout.setVisibility(View.VISIBLE);
}
 

import com.github.mikephil.charting.data.ScatterData; //导入依赖的package包/类
@Override
public void drawData(Canvas c) {

    ScatterData scatterData = mChart.getScatterData();

    IScatterDataSet set;
    int setCount = scatterData.getDataSets().size();
    for(int i = 0 ; i < setCount ; i++){
        set = scatterData.getDataSets().get(i);

        if (set.isVisible())
            drawDataSet(c, set);
    }
}