com.github.mikephil.charting.data.DataSet Java Examples

The following examples show how to use com.github.mikephil.charting.data.DataSet. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: RealmBaseDataSet.java From MPAndroidChart-Realm with Apache License 2.0

6 votes

@Override
public void calcMinMaxY(float fromX, float toX) {

    if (mValues == null || mValues.isEmpty())
        return;

    mYMax = -Float.MAX_VALUE;
    mYMin = Float.MAX_VALUE;

    int indexFrom = getEntryIndex(fromX, Float.NaN, DataSet.Rounding.DOWN);
    int indexTo = getEntryIndex(toX, Float.NaN, DataSet.Rounding.UP);

    for (int i = indexFrom; i <= indexTo; i++) {

        // only recalculate y
        calcMinMaxY(mValues.get(i));
    }
}

Example #2

Source File: RealmBaseDataSet.java From MPAndroidChart-Realm with Apache License 2.0

6 votes

@Override
public void addEntryOrdered(S e) {

    if (e == null)
        return;

    if (mValues == null) {
        mValues = new ArrayList<S>();
    }

    calcMinMax(e);

    if (mValues.size() > 0 && mValues.get(mValues.size() - 1).getX() > e.getX()) {
        int closestIndex = getEntryIndex(e.getX(), e.getY(), DataSet.Rounding.UP);
        mValues.add(closestIndex, e);
    } else {
        mValues.add(e);
    }
}

Example #3

Source File: BarChart.java From Notification-Analyser with MIT License

6 votes

@Override
protected void calcMinMax(boolean fixedValues) {
    super.calcMinMax(fixedValues);

    // increase deltax by 1 because the bars have a width of 1
    mDeltaX++;

    // extend xDelta to make space for multiple datasets (if ther are one)
    mDeltaX *= mOriginalData.getDataSetCount();

    int maxEntry = 0;

    for (int i = 0; i < mOriginalData.getDataSetCount(); i++) {

        DataSet<? extends Entry> set = mOriginalData.getDataSetByIndex(i);

        if (maxEntry < set.getEntryCount())
            maxEntry = set.getEntryCount();
    }

    float groupSpace = mOriginalData.getGroupSpace();
    mDeltaX += maxEntry * groupSpace;
}

Example #4

Source File: ChartDataSetConfigUtils.java From react-native-mp-android-chart with MIT License

5 votes

public static void commonConfig(DataSet dataSet, ReadableMap config) {
    // Setting main color
    if (BridgeUtils.validate(config, ReadableType.String, "color")) {
        dataSet.setColor(Color.parseColor(config.getString("color")));
    }
    if (BridgeUtils.validate(config, ReadableType.Array, "colors")) {
        dataSet.setColors(BridgeUtils.parseColors(config.getArray("colors")));
    }

    // TODO more config to add: https://github.com/PhilJay/MPAndroidChart/wiki/The-DataSet-class

    if (BridgeUtils.validate(config, ReadableType.Boolean, "drawValues")) {
        dataSet.setDrawValues(config.getBoolean("drawValues"));
    }
}

Example #5

Source File: DataSetTest.java From Ticket-Analysis with MIT License

5 votes

@Test
public void testGetEntryForXValue() {

    List<Entry> entries = new ArrayList<Entry>();
    entries.add(new Entry(10, 10));
    entries.add(new Entry(15, 5));
    entries.add(new Entry(21, 5));

    ScatterDataSet set = new ScatterDataSet(entries, "");

    Entry closest = set.getEntryForXValue(17, Float.NaN, DataSet.Rounding.CLOSEST);
    assertEquals(15, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(17, Float.NaN, DataSet.Rounding.DOWN);
    assertEquals(15, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(15, Float.NaN, DataSet.Rounding.DOWN);
    assertEquals(15, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(14, Float.NaN, DataSet.Rounding.DOWN);
    assertEquals(10, closest.getX(), 0.01f);
    assertEquals(10, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(17, Float.NaN, DataSet.Rounding.UP);
    assertEquals(21, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(21, Float.NaN, DataSet.Rounding.UP);
    assertEquals(21, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(21, Float.NaN, DataSet.Rounding.CLOSEST);
    assertEquals(21, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);
}

Example #6

Source File: HorizontalBarHighlighter.java From Ticket-Analysis with MIT License

5 votes

@Override
protected List<Highlight> buildHighlights(IDataSet set, int dataSetIndex, float xVal, DataSet.Rounding rounding) {

	ArrayList<Highlight> highlights = new ArrayList<>();

	//noinspection unchecked
	List<Entry> entries = set.getEntriesForXValue(xVal);
	if (entries.size() == 0) {
		// Try to find closest x-value and take all entries for that x-value
		final Entry closest = set.getEntryForXValue(xVal, Float.NaN, rounding);
		if (closest != null)
		{
			//noinspection unchecked
			entries = set.getEntriesForXValue(closest.getX());
		}
	}

	if (entries.size() == 0)
		return highlights;

	for (Entry e : entries) {
		MPPointD pixels = mChart.getTransformer(
				set.getAxisDependency()).getPixelForValues(e.getY(), e.getX());

		highlights.add(new Highlight(
				e.getX(), e.getY(),
				(float) pixels.x, (float) pixels.y,
				dataSetIndex, set.getAxisDependency()));
	}

	return highlights;
}

Example #7

Source File: ChartHighlighter.java From Ticket-Analysis with MIT License

5 votes

/**
 * An array of `Highlight` objects corresponding to the selected xValue and dataSetIndex.
 *
 * @param set
 * @param dataSetIndex
 * @param xVal
 * @param rounding
 * @return
 */
protected List<Highlight> buildHighlights(IDataSet set, int dataSetIndex, float xVal, DataSet.Rounding rounding) {

    ArrayList<Highlight> highlights = new ArrayList<>();

    //noinspection unchecked
    List<Entry> entries = set.getEntriesForXValue(xVal);
    if (entries.size() == 0) {
        // Try to find closest x-value and take all entries for that x-value
        final Entry closest = set.getEntryForXValue(xVal, Float.NaN, rounding);
        if (closest != null)
        {
            //noinspection unchecked
            entries = set.getEntriesForXValue(closest.getX());
        }
    }

    if (entries.size() == 0)
        return highlights;

    for (Entry e : entries) {
        MPPointD pixels = mChart.getTransformer(
                set.getAxisDependency()).getPixelForValues(e.getX(), e.getY());

        highlights.add(new Highlight(
                e.getX(), e.getY(),
                (float) pixels.x, (float) pixels.y,
                dataSetIndex, set.getAxisDependency()));
    }

    return highlights;
}

Example #8

Source File: HorizontalBarHighlighter.java From StockChart-MPAndroidChart with MIT License

5 votes

@Override
protected List<Highlight> buildHighlights(IDataSet set, int dataSetIndex, float xVal, DataSet.Rounding rounding) {

    ArrayList<Highlight> highlights = new ArrayList<>();

    //noinspection unchecked
    List<Entry> entries = set.getEntriesForXValue(xVal);
    if (entries.size() == 0) {
        // Try to find closest x-value and take all entries for that x-value
        final Entry closest = set.getEntryForXValue(xVal, Float.NaN, rounding);
        if (closest != null) {
            //noinspection unchecked
            entries = set.getEntriesForXValue(closest.getX());
        }
    }

    if (entries.size() == 0) {
        return highlights;
    }

    for (Entry e : entries) {
        MPPointD pixels = mChart.getTransformer(
                set.getAxisDependency()).getPixelForValues(e.getY(), e.getX());

        highlights.add(new Highlight(
                e.getX(), e.getY(),
                (float) pixels.x, (float) pixels.y,
                dataSetIndex, set.getAxisDependency()));
    }

    return highlights;
}

Example #9

Source File: DataSetTest.java From StockChart-MPAndroidChart with MIT License

5 votes

@Test
public void testGetEntryForXValue() {

    List<Entry> entries = new ArrayList<Entry>();
    entries.add(new Entry(10, 10));
    entries.add(new Entry(15, 5));
    entries.add(new Entry(21, 5));

    ScatterDataSet set = new ScatterDataSet(entries, "");

    Entry closest = set.getEntryForXValue(17, Float.NaN, DataSet.Rounding.CLOSEST);
    assertEquals(15, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(17, Float.NaN, DataSet.Rounding.DOWN);
    assertEquals(15, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(15, Float.NaN, DataSet.Rounding.DOWN);
    assertEquals(15, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(14, Float.NaN, DataSet.Rounding.DOWN);
    assertEquals(10, closest.getX(), 0.01f);
    assertEquals(10, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(17, Float.NaN, DataSet.Rounding.UP);
    assertEquals(21, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(21, Float.NaN, DataSet.Rounding.UP);
    assertEquals(21, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(21, Float.NaN, DataSet.Rounding.CLOSEST);
    assertEquals(21, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);
}

Example #10

Source File: DrawChartActivity.java From StockChart-MPAndroidChart with MIT License

5 votes

/** callback when a DataSet has been drawn (when lifting the finger) */
@Override
public void onDrawFinished(DataSet<?> dataSet) {
    Log.i(Chart.LOG_TAG, "DataSet drawn. " + dataSet.toSimpleString());

    // prepare the legend again
    chart.getLegendRenderer().computeLegend(chart.getData());
}

Example #11

Source File: BarLineScatterCandleBubbleRenderer.java From Ticket-Analysis with MIT License

5 votes

/**
 * Calculates the minimum and maximum x values as well as the range between them.
 *
 * @param chart
 * @param dataSet
 */
public void set(BarLineScatterCandleBubbleDataProvider chart, IBarLineScatterCandleBubbleDataSet dataSet) {
    float phaseX = Math.max(0.f, Math.min(1.f, mAnimator.getPhaseX()));

    float low = chart.getLowestVisibleX();
    float high = chart.getHighestVisibleX();

    Entry entryFrom = dataSet.getEntryForXValue(low, Float.NaN, DataSet.Rounding.DOWN);
    Entry entryTo = dataSet.getEntryForXValue(high, Float.NaN, DataSet.Rounding.UP);

    min = entryFrom == null ? 0 : dataSet.getEntryIndex(entryFrom);
    max = entryTo == null ? 0 : dataSet.getEntryIndex(entryTo);
    range = (int) ((max - min) * phaseX);
}

Example #12

Source File: BarLineScatterCandleBubbleRenderer.java From android-kline with Apache License 2.0

5 votes

/**
 * Calculates the minimum and maximum x values as well as the range between them.
 *
 * @param chart
 * @param dataSet
 */
public void set(BarLineScatterCandleBubbleDataProvider chart, IBarLineScatterCandleBubbleDataSet dataSet) {
    float phaseX = Math.max(0.f, Math.min(1.f, mAnimator.getPhaseX()));

    float low = chart.getLowestVisibleX();
    float high = chart.getHighestVisibleX();

    Entry entryFrom = dataSet.getEntryForXValue(low, Float.NaN, DataSet.Rounding.DOWN);
    Entry entryTo = dataSet.getEntryForXValue(high, Float.NaN, DataSet.Rounding.UP);

    min = entryFrom == null ? 0 : dataSet.getEntryIndex(entryFrom);
    max = entryTo == null ? 0 : dataSet.getEntryIndex(entryTo);
    range = (int) ((max - min) * phaseX);
}

Example #13

Source File: ChartHighlighter.java From StockChart-MPAndroidChart with MIT License

5 votes

/**
 * An array of `Highlight` objects corresponding to the selected xValue and dataSetIndex.
 *
 * @param set
 * @param dataSetIndex
 * @param xVal
 * @param rounding
 * @return
 */
protected List<Highlight> buildHighlights(IDataSet set, int dataSetIndex, float xVal, DataSet.Rounding rounding) {

    ArrayList<Highlight> highlights = new ArrayList<>();

    //noinspection unchecked
    List<Entry> entries = set.getEntriesForXValue(xVal);
    if (entries.size() == 0) {
        // Try to find closest x-value and take all entries for that x-value
        final Entry closest = set.getEntryForXValue(xVal, Float.NaN, rounding);
        if (closest != null) {
            //noinspection unchecked
            entries = set.getEntriesForXValue(closest.getX());
        }
    }

    if (entries.size() == 0) {
        return highlights;
    }

    for (Entry e : entries) {
        MPPointD pixels = mChart.getTransformer(
                set.getAxisDependency()).getPixelForValues(e.getX(), e.getY());

        highlights.add(new Highlight(
                e.getX(), e.getY(),
                (float) pixels.x, (float) pixels.y,
                dataSetIndex, set.getAxisDependency()));
    }

    return highlights;
}

Example #14

Source File: Chart.java From Notification-Analyser with MIT License

5 votes

/**
 * returns the average value for a specific DataSet (with a specific label)
 * in the chart
 * 
 * @param dataSetLabel
 * @return
 */
public float getAverage(String dataSetLabel) {

    DataSet<? extends Entry> ds = mCurrentData.getDataSetByLabel(dataSetLabel, true);

    return ds.getYValueSum()
            / ds.getEntryCount();
}

Example #15

Source File: ChartHighlighter.java From android-kline with Apache License 2.0

5 votes

/**
 * An array of `Highlight` objects corresponding to the selected xValue and dataSetIndex.
 *
 * @param set
 * @param dataSetIndex
 * @param xVal
 * @param rounding
 * @return
 */
protected List<Highlight> buildHighlights(IDataSet set, int dataSetIndex, float xVal, DataSet.Rounding rounding) {

    ArrayList<Highlight> highlights = new ArrayList<>();

    //noinspection unchecked
    List<Entry> entries = set.getEntriesForXValue(xVal);
    if (entries.size() == 0) {
        // Try to find closest x-value and take all entries for that x-value
        final Entry closest = set.getEntryForXValue(xVal, Float.NaN, rounding);
        if (closest != null)
        {
            //noinspection unchecked
            entries = set.getEntriesForXValue(closest.getX());
        }
    }

    if (entries.size() == 0)
        return highlights;

    for (Entry e : entries) {
        MPPointD pixels = mChart.getTransformer(
                set.getAxisDependency()).getPixelForValues(e.getX(), e.getY());

        highlights.add(new Highlight(
                e.getX(), e.getY(),
                (float) pixels.x, (float) pixels.y,
                dataSetIndex, set.getAxisDependency()));
    }

    return highlights;
}

Example #16

Source File: HorizontalBarHighlighter.java From android-kline with Apache License 2.0

5 votes

@Override
protected List<Highlight> buildHighlights(IDataSet set, int dataSetIndex, float xVal, DataSet.Rounding rounding) {

	ArrayList<Highlight> highlights = new ArrayList<>();

	//noinspection unchecked
	List<Entry> entries = set.getEntriesForXValue(xVal);
	if (entries.size() == 0) {
		// Try to find closest x-value and take all entries for that x-value
		final Entry closest = set.getEntryForXValue(xVal, Float.NaN, rounding);
		if (closest != null)
		{
			//noinspection unchecked
			entries = set.getEntriesForXValue(closest.getX());
		}
	}

	if (entries.size() == 0)
		return highlights;

	for (Entry e : entries) {
		MPPointD pixels = mChart.getTransformer(
				set.getAxisDependency()).getPixelForValues(e.getY(), e.getX());

		highlights.add(new Highlight(
				e.getX(), e.getY(),
				(float) pixels.x, (float) pixels.y,
				dataSetIndex, set.getAxisDependency()));
	}

	return highlights;
}

Example #17

Source File: DataSetTest.java From android-kline with Apache License 2.0

5 votes

@Test
public void testGetEntryForXValue() {

    List<Entry> entries = new ArrayList<Entry>();
    entries.add(new Entry(10, 10));
    entries.add(new Entry(15, 5));
    entries.add(new Entry(21, 5));

    ScatterDataSet set = new ScatterDataSet(entries, "");

    Entry closest = set.getEntryForXValue(17, Float.NaN, DataSet.Rounding.CLOSEST);
    assertEquals(15, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(17, Float.NaN, DataSet.Rounding.DOWN);
    assertEquals(15, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(15, Float.NaN, DataSet.Rounding.DOWN);
    assertEquals(15, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(14, Float.NaN, DataSet.Rounding.DOWN);
    assertEquals(10, closest.getX(), 0.01f);
    assertEquals(10, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(17, Float.NaN, DataSet.Rounding.UP);
    assertEquals(21, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(21, Float.NaN, DataSet.Rounding.UP);
    assertEquals(21, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);

    closest = set.getEntryForXValue(21, Float.NaN, DataSet.Rounding.CLOSEST);
    assertEquals(21, closest.getX(), 0.01f);
    assertEquals(5, closest.getY(), 0.01f);
}

Example #18

Source File: PieChart.java From iMoney with Apache License 2.0

5 votes

/**
 * Returns the index of the DataSet this x-index belongs to.
 *
 * @param xIndex
 * @return
 */
public int getDataSetIndexForIndex(int xIndex) {

    List<? extends DataSet<? extends Entry>> dataSets = mData.getDataSets();

    for (int i = 0; i < dataSets.size(); i++) {
        if (dataSets.get(i).getEntryForXIndex(xIndex) != null)
            return i;
    }

    return -1;
}

Example #19

Source File: Chart.java From iMoney with Apache License 2.0

5 votes

/**
 * Sets a new data object for the chart. The data object contains all values
 * and information needed for displaying.
 *
 * @param data
 */
public void setData(T data) {

    if (data == null) {
        Log.e(LOG_TAG,
                "Cannot set data for chart. Provided data object is null.");
        return;
    }

    // LET THE CHART KNOW THERE IS DATA
    mDataNotSet = false;
    mOffsetsCalculated = false;
    mData = data;

    // calculate how many digits are needed
    calculateFormatter(data.getYMin(), data.getYMax());

    for (DataSet<?> set : mData.getDataSets()) {
        if (set.needsDefaultFormatter())
            set.setValueFormatter(mDefaultFormatter);
    }

    // let the chart know there is new data
    notifyDataSetChanged();

    if (mLogEnabled)
        Log.i(LOG_TAG, "Data is set.");
}

Example #20

Source File: PieChart.java From Notification-Analyser with MIT License

5 votes

/**
 * Returns the index of the DataSet this x-index belongs to.
 * 
 * @param xIndex
 * @return
 */
public int getDataSetIndexForIndex(int xIndex) {

    ArrayList<? extends DataSet<? extends Entry>> dataSets = mCurrentData.getDataSets();

    for (int i = 0; i < dataSets.size(); i++) {
        if (dataSets.get(i).getEntryForXIndex(xIndex) != null)
            return i;
    }

    return -1;
}

Example #21

Source File: DataRenderer.java From iMoney with Apache License 2.0

5 votes

/**
 * Applies the required styling (provided by the DataSet) to the value-paint
 * object.
 *
 * @param set
 */
protected void applyValueTextStyle(DataSet<?> set) {

    mValuePaint.setColor(set.getValueTextColor());
    mValuePaint.setTypeface(set.getValueTypeface());
    mValuePaint.setTextSize(set.getValueTextSize());
}

Example #22

Source File: RealmBaseDataSet.java From Stayfit with Apache License 2.0

5 votes

@Override
public S getEntryForXIndex(int xIndex, DataSet.Rounding rounding) {
    int index = getEntryIndex(xIndex, rounding);
    if (index > -1)
        return mValues.get(index);
    return null;
}

Example #23

Source File: RealmBaseDataSet.java From Stayfit with Apache License 2.0

5 votes

@Override
public int getEntryIndex(int x, DataSet.Rounding rounding) {

    int low = 0;
    int high = mValues.size() - 1;
    int closest = -1;

    while (low <= high) {
        int m = (high + low) / 2;

        if (x == mValues.get(m).getXIndex()) {
            while (m > 0 && mValues.get(m - 1).getXIndex() == x)
                m--;

            return m;
        }

        if (x > mValues.get(m).getXIndex())
            low = m + 1;
        else
            high = m - 1;

        closest = m;
    }

    if (closest != -1) {
        int closestXIndex = mValues.get(closest).getXIndex();
        if (rounding == DataSet.Rounding.UP) {
            if (closestXIndex < x && closest < mValues.size() - 1) {
                ++closest;
            }
        } else if (rounding == DataSet.Rounding.DOWN) {
            if (closestXIndex > x && closest > 0) {
                --closest;
            }
        }
    }

    return closest;
}

Example #24

Source File: RealmBaseDataSet.java From Stayfit with Apache License 2.0

5 votes

@Override
public void addEntryOrdered(S e) {

    if (e == null)
        return;

    float val = e.getVal();

    if (mValues == null) {
        mValues = new ArrayList<S>();
    }

    if (mValues.size() == 0) {
        mYMax = val;
        mYMin = val;
    } else {
        if (mYMax < val)
            mYMax = val;
        if (mYMin > val)
            mYMin = val;
    }

    if (mValues.size() > 0 && mValues.get(mValues.size() - 1).getXIndex() > e.getXIndex()) {
        int closestIndex = getEntryIndex(e.getXIndex(), DataSet.Rounding.UP);
        mValues.add(closestIndex, e);
        return;
    }

    mValues.add(e);
}

Example #25

Source File: RealmBaseDataSet.java From MPAndroidChart-Realm with Apache License 2.0

5 votes

@Override
public S getEntryForXValue(float xValue, float closestToY, DataSet.Rounding rounding) {

    int index = getEntryIndex(xValue, closestToY, rounding);
    if (index > -1)
        return mValues.get(index);
    return null;
}

Example #26

Source File: DrawChartActivity.java From Stayfit with Apache License 2.0

5 votes

/** callback when a DataSet has been drawn (when lifting the finger) */
@Override
public void onDrawFinished(DataSet<?> dataSet) {
    Log.i(Chart.LOG_TAG, "DataSet drawn. " + dataSet.toSimpleString());

    // prepare the legend again
    mChart.getLegendRenderer().computeLegend(mChart.getData());
}

Example #27

Source File: RealmBaseDataSet.java From NetKnight with Apache License 2.0

5 votes

@Override
public S getEntryForXIndex(int xIndex, DataSet.Rounding rounding) {
    int index = getEntryIndex(xIndex, rounding);
    if (index > -1)
        return mValues.get(index);
    return null;
}

Example #28

Source File: RealmBaseDataSet.java From NetKnight with Apache License 2.0

5 votes

@Override
public void addEntryOrdered(S e) {

    if (e == null)
        return;

    float val = e.getVal();

    if (mValues == null) {
        mValues = new ArrayList<S>();
    }

    if (mValues.size() == 0) {
        mYMax = val;
        mYMin = val;
    } else {
        if (mYMax < val)
            mYMax = val;
        if (mYMin > val)
            mYMin = val;
    }

    if (mValues.size() > 0 && mValues.get(mValues.size() - 1).getXIndex() > e.getXIndex()) {
        int closestIndex = getEntryIndex(e.getXIndex(), DataSet.Rounding.UP);
        mValues.add(closestIndex, e);
        return;
    }

    mValues.add(e);
}

Example #29

Source File: BarLineScatterCandleBubbleRenderer.java From StockChart-MPAndroidChart with MIT License

5 votes

/**
 * Calculates the minimum and maximum x values as well as the range between them.
 *
 * @param chart
 * @param dataSet
 */
public void set(BarLineScatterCandleBubbleDataProvider chart, IBarLineScatterCandleBubbleDataSet dataSet) {
    float phaseX = Math.max(0.f, Math.min(1.f, mAnimator.getPhaseX()));

    float low = chart.getLowestVisibleX();
    float high = chart.getHighestVisibleX();

    Entry entryFrom = dataSet.getEntryForXValue(low, Float.NaN, DataSet.Rounding.DOWN);
    Entry entryTo = dataSet.getEntryForXValue(high, Float.NaN, DataSet.Rounding.UP);

    min = entryFrom == null ? 0 : dataSet.getEntryIndex(entryFrom);
    max = entryTo == null ? 0 : dataSet.getEntryIndex(entryTo);
    range = (int) ((max - min) * phaseX);
}

Example #30

Source File: LineChartRenderer.java From Stayfit with Apache License 2.0

4 votes

/**
 * Draws a normal line.
 *
 * @param c
 * @param dataSet
 */
protected void drawLinear(Canvas c, ILineDataSet dataSet) {

    int entryCount = dataSet.getEntryCount();

    int dataSetIndex = mChart.getLineData().getIndexOfDataSet(dataSet);

    Transformer trans = mChart.getTransformer(dataSet.getAxisDependency());

    float phaseX = mAnimator.getPhaseX();
    float phaseY = mAnimator.getPhaseY();

    mRenderPaint.setStyle(Paint.Style.STROKE);

    Canvas canvas = null;

    // if the data-set is dashed, draw on bitmap-canvas
    if (dataSet.isDashedLineEnabled()) {
        canvas = mBitmapCanvas;
    } else {
        canvas = c;
    }

    Entry entryFrom = dataSet.getEntryForXIndex((mMinX < 0) ? 0 : mMinX, DataSet.Rounding.DOWN);
    Entry entryTo = dataSet.getEntryForXIndex(mMaxX, DataSet.Rounding.UP);

    int minx = Math.max(dataSet.getEntryIndex(entryFrom), 0);
    int maxx = Math.min(dataSet.getEntryIndex(entryTo) + 1, entryCount);

    int range = (maxx - minx) * 4 - 4;

    LineBuffer buffer = mLineBuffers[dataSetIndex];
    buffer.setPhases(phaseX, phaseY);
    buffer.limitFrom(minx);
    buffer.limitTo(maxx);
    buffer.feed(dataSet);

    trans.pointValuesToPixel(buffer.buffer);

    // more than 1 color
    if (dataSet.getColors().size() > 1) {

        for (int j = 0; j < range; j += 4) {

            if (!mViewPortHandler.isInBoundsRight(buffer.buffer[j]))
                break;

            // make sure the lines don't do shitty things outside
            // bounds
            if (!mViewPortHandler.isInBoundsLeft(buffer.buffer[j + 2])
                    || (!mViewPortHandler.isInBoundsTop(buffer.buffer[j + 1]) && !mViewPortHandler
                    .isInBoundsBottom(buffer.buffer[j + 3]))
                    || (!mViewPortHandler.isInBoundsTop(buffer.buffer[j + 1]) && !mViewPortHandler
                    .isInBoundsBottom(buffer.buffer[j + 3])))
                continue;

            // get the color that is set for this line-segment
            mRenderPaint.setColor(dataSet.getColor(j / 4 + minx));

            canvas.drawLine(buffer.buffer[j], buffer.buffer[j + 1],
                    buffer.buffer[j + 2], buffer.buffer[j + 3], mRenderPaint);
        }

    } else { // only one color per dataset

        mRenderPaint.setColor(dataSet.getColor());

        // c.drawLines(buffer.buffer, mRenderPaint);
        canvas.drawLines(buffer.buffer, 0, range,
                mRenderPaint);
    }

    mRenderPaint.setPathEffect(null);

    // if drawing filled is enabled
    if (dataSet.isDrawFilledEnabled() && entryCount > 0) {
        drawLinearFill(c, dataSet, minx, maxx, trans);
    }
}