Examples with VNumberArray org.diirt.vtype.VNumberArray used on opensource projects

Example 21 with VNumberArray

use of org.diirt.vtype.VNumberArray in project yamcs-studio by yamcs.

the class ElementAtNumberFormulaFunction method calculate.

/*
     * (non-Javadoc)
     *
     * @see
     * org.epics.pvmanager.formula.FormulaFunction#calculate(java.util.List)
     */
@Override
public Object calculate(List<Object> args) {
    if (NullUtils.containsNull(args)) {
        return null;
    }
    VNumberArray numberArray = (VNumberArray) args.get(0);
    VNumber index = (VNumber) args.get(1);
    int i = index.getValue().intValue();
    return newVNumber(numberArray.getData().getDouble(i), numberArray, numberArray, displayNone());
}

Example 22 with VNumberArray

use of org.diirt.vtype.VNumberArray in project yamcs-studio by yamcs.

the class HistogramOfFormulaFunction method calculate.

@Override
public Object calculate(List<Object> args) {
    VNumberArray numberArray = (VNumberArray) args.get(0);
    if (numberArray == null) {
        return null;
    }
    // If no change, return previous
    if (previousValue == numberArray) {
        return previousResult;
    }
    Statistics stats = StatisticsUtil.statisticsOf(numberArray.getData());
    int nBins = 100;
    Range aggregatedRange = Ranges.aggregateRange(stats.getRange(), previousXRange);
    Range xRange;
    if (Ranges.overlap(aggregatedRange, stats.getRange()) >= 0.75) {
        xRange = aggregatedRange;
    } else {
        xRange = stats.getRange();
    }
    IteratorNumber newValues = numberArray.getData().iterator();
    double minValueRange = xRange.getMinimum();
    double maxValueRange = xRange.getMaximum();
    ListNumber xBoundaries = ListNumbers.linearListFromRange(minValueRange, maxValueRange, nBins + 1);
    String unit = numberArray.getUnits();
    int[] binData = new int[nBins];
    double maxCount = 0;
    while (newValues.hasNext()) {
        double value = newValues.nextDouble();
        // Check value in range
        if (xRange.contains(value)) {
            int bin = (int) Math.floor(xRange.normalize(value) * nBins);
            if (bin == nBins) {
                bin--;
            }
            binData[bin]++;
            if (binData[bin] > maxCount) {
                maxCount = binData[bin];
            }
        }
    }
    if (previousMaxCount > maxCount && previousMaxCount < maxCount * 2.0) {
        maxCount = previousMaxCount;
    }
    previousMaxCount = maxCount;
    previousXRange = xRange;
    previousValue = numberArray;
    previousResult = newVNumberArray(new ArrayInt(binData), new ArrayInt(nBins), Arrays.asList(newDisplay(xBoundaries, unit)), numberArray, numberArray, newDisplay(0.0, 0.0, 0.0, "count", NumberFormats.format(0), maxCount, maxCount, maxCount, Double.NaN, Double.NaN));
    return previousResult;
}

Example 23 with VNumberArray

use of org.diirt.vtype.VNumberArray in project yamcs-studio by yamcs.

the class NdArrayFormulaFunction method calculate.

@Override
public Object calculate(final List<Object> args) {
    if (NullUtils.containsNull(args)) {
        return null;
    }
    VNumberArray data = (VNumberArray) args.get(0);
    ArrayDimensionDisplay[] displays = new ArrayDimensionDisplay[args.size() - 1];
    for (int i = 0; i < displays.length; i++) {
        displays[i] = (ArrayDimensionDisplay) args.get(i + 1);
    }
    return ValueFactory.ndArray(data, displays);
}

Example 24 with VNumberArray

use of org.diirt.vtype.VNumberArray in project yamcs-studio by yamcs.

the class ColumnFromVNumberArrayFunction method calculate.

@Override
public Object calculate(final List<Object> args) {
    VString name = (VString) args.get(0);
    VNumberArray data = (VNumberArray) args.get(1);
    if (name == null || data == null) {
        return null;
    }
    return VTableFactory.column(name.getValue(), data);
}

Example 25 with VNumberArray

use of org.diirt.vtype.VNumberArray in project org.csstudio.display.builder by kasemir.

the class ValueUtil method getStringArray.

/**
 * Get string array from pv.
 *  @param value Value of a PV
 *  @return String array.
 *          For string array, it's the actual strings.
 *          For numeric arrays, the numbers are formatted as strings.
 *          For enum array, the labels are returned.
 *          For scalar PVs, an array with a single string is returned.
 */
public static final String[] getStringArray(final VType value) {
    if (value instanceof VStringArray) {
        final List<String> list = ((VStringArray) value).getData();
        return list.toArray(new String[list.size()]);
    } else if (value instanceof VDoubleArray) {
        final ListNumber list = ((VNumberArray) value).getData();
        final String[] text = new String[list.size()];
        for (int i = 0; i < text.length; ++i) text[i] = Double.toString(list.getDouble(i));
        return text;
    } else if (value instanceof VNumberArray) {
        final ListNumber list = ((VNumberArray) value).getData();
        final String[] text = new String[list.size()];
        for (int i = 0; i < text.length; ++i) text[i] = Long.toString(list.getLong(i));
        return text;
    } else if (value instanceof VEnumArray) {
        final List<String> labels = ((VEnumArray) value).getLabels();
        final ListInt list = ((VEnumArray) value).getIndexes();
        final String[] text = new String[list.size()];
        for (int i = 0; i < text.length; ++i) {
            final int index = list.getInt(i);
            if (index >= 0 && index <= labels.size())
                text[i] = labels.get(index);
            else
                text[i] = "<" + index + ">";
        }
        return text;
    }
    return new String[] { getString(value) };
}