Example usage for org.apache.commons.math3.fraction BigFraction BigFraction

Introduction

In this page you can find the example usage for org.apache.commons.math3.fraction BigFraction BigFraction.

Prototype

public BigFraction(final long num) 

Source Link

Document

Create a BigFraction equivalent to the passed long, ie "num / 1".

Usage

From source file:com.netflix.imfutility.itunes.asset.ChapterAssetProcessorTest.java

@Test
public void testCorrectChapter() throws Exception {
    ChapterAssetProcessor processor = new ChapterAssetProcessor(metadataXmlProvider,
            TemplateParameterContextCreator.getWorkingDir());

    processor.setInputChapterItem(ChaptersXmlSampleBuilder.buildInputChapter())
            .setAspectRatio(new BigFraction(16).divide(9)).setChapterIndex(1)
            .process(AssetUtils.getTestCorrectChapterFile());

    File asset = new File(TemplateParameterContextCreator.getWorkingDir(), "chapter01.jpg");
    assertTrue(asset.exists());// w  w  w . j a v  a  2s .  c o m
    assertTrue(asset.isFile());

    ChapterAsset chapterAsset = metadataXmlProvider.getRootElement().getChapterAssets().get(0);
    assertNull(chapterAsset.getType());
    assertNull(chapterAsset.getRole());
    assertEquals("chapter01.jpg", chapterAsset.getFileName());
}

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From source file:com.netflix.imfutility.util.ConversionHelper.java

/**
 * Transforms edit units to a timecode according to the given edit unit rate.
 * <ul>/*from  w  w w.j a v  a2  s.  c o  m*/
 * <li>An example of edit units is a frame.</li>
 * <li>The output timecode has the following format 'hh:mm:ss.xxx', where xxx is milliseconds.</li>
 * </ul>
 *
 * @param eu         edit units to be transformed
 * @param unitsInSec edit unit rate
 * @return timecode as a string in "hh:mm:ss.mss" format.
 */
public static String editUnitToTimecode(BigInteger eu, BigFraction unitsInSec) {
    BigFraction editUnits = new BigFraction(eu);
    BigFraction unitsInMin = unitsInSec.multiply(new BigFraction(60));
    BigFraction unitsInHour = unitsInSec.multiply(new BigFraction(60 * 60));

    int hours = editUnits.divide(unitsInHour).intValue();
    int minutes = editUnits.subtract(unitsInHour.multiply(hours)).divide(unitsInMin).intValue();
    int seconds = editUnits.subtract(unitsInHour.multiply(hours)).subtract(unitsInMin.multiply(minutes))
            .divide(unitsInSec).intValue();
    BigFraction units = editUnits.subtract(unitsInHour.multiply(hours)).subtract(unitsInMin.multiply(minutes))
            .subtract(unitsInSec.multiply(seconds));
    int milliseconds = new BigFraction(1000).divide(unitsInSec).multiply(units).intValue();

    return String.format("%02d:%02d:%02d.%03d", hours, minutes, seconds, milliseconds);
}

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From source file:controller.Parser.java

static LP parse(File f) throws FileNotFoundException {
    Scanner s = new Scanner(f);
    Pattern p = Pattern.compile(dvarreg);

    HashMap<String, Integer> x = new HashMap<String, Integer>();
    HashMap<Integer, String> xReverse = new HashMap<Integer, String>();
    int xcol = 0;

    /* Get input size and names of the decision variables. */
    int constraints = -1; // Take the objective function into account.
    while (s.hasNextLine()) {
        String line = s.nextLine();

        if (line.trim().equals(""))
            continue;

        /* /*from w  w w  . j a  v  a2  s. co  m*/
         * TODO: Beware, will now accept invalid
         * files with multiple objective functions.
         */
        /*            if (!validConstraint(line) && !validObj(line)) {
        String e = "Unsupported format in file " + f;
        throw new IllegalArgumentException(e);
                    } */

        Matcher m = p.matcher(line);

        while (m.find()) {
            String var = m.group(3);
            if (validVarName(var) && !x.containsKey(var)) {
                x.put(var, xcol);
                xReverse.put(xcol++, var);
            }
        }
        constraints++;
    }

    BigFraction[][] Ndata = new BigFraction[constraints][x.size()];
    for (int i = 0; i < Ndata.length; i++) {
        Arrays.fill(Ndata[i], BigFraction.ZERO);
    }
    BigFraction[] bdata = new BigFraction[constraints];
    BigFraction[] cdata = new BigFraction[x.size()];
    Arrays.fill(cdata, BigFraction.ZERO);

    s = new Scanner(f);

    String obj = s.nextLine();
    Matcher m = p.matcher(obj);

    while (m.find()) {
        String var = m.group(3);
        if (!x.containsKey(var))
            continue;

        String sign = m.group(1);
        if (sign == null)
            sign = "+";

        String coeffStr = m.group(2);
        BigFraction coeff;
        if (coeffStr == null) {
            coeff = BigFraction.ONE;
        } else {
            coeff = new BigFraction(Double.parseDouble(coeffStr));
        }
        if (sign.equals("-"))
            coeff = coeff.negate();

        cdata[x.get(var)] = coeff;
    }

    int row = 0;
    while (s.hasNextLine()) {
        String line = s.nextLine();
        String[] split = line.split("<=");
        if (line.trim().equals(""))
            continue;
        if (split.length != 2) {
            String e = "Unsupported format in file " + f;
            throw new IllegalArgumentException(e);
        }
        m = p.matcher(line);
        bdata[row] = new BigFraction(Double.parseDouble(split[1]));

        while (m.find()) {
            String var = m.group(3);
            if (!x.containsKey(var))
                continue;

            String sign = m.group(1);
            if (sign == null)
                sign = "+";

            String coeffStr = m.group(2);
            BigFraction coeff;
            if (coeffStr == null) {
                coeff = BigFraction.ONE;
            } else {
                coeff = new BigFraction(Double.parseDouble(coeffStr));
            }
            if (sign.equals("-"))
                coeff = coeff.negate();

            Ndata[row][x.get(var)] = coeff;
        }
        row++;
    }

    return new LP(new Array2DRowFieldMatrix<BigFraction>(Ndata), new ArrayFieldVector<BigFraction>(bdata),
            new ArrayFieldVector<BigFraction>(cdata), xReverse);
}

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From source file:com.netflix.imfutility.ConversionHelperTest.java

@Test
public void toNewEditRate() {
    assertEquals(100, ConversionHelper.toNewEditRate(BigInteger.valueOf(160160), new BigFraction(48000),
            new BigFraction(30000, 1001)));
    assertEquals(50,/*from  w  w w  .j  ava2 s .  c  o  m*/
            ConversionHelper.toNewEditRate(BigInteger.valueOf(100), new BigFraction(50), new BigFraction(25)));
    assertEquals(55,
            ConversionHelper.toNewEditRate(BigInteger.valueOf(110), new BigFraction(50), new BigFraction(25)));
}

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From source file:com.netflix.imfutility.itunes.image.ImageValidator.java

private BigFraction getImageAspectRatio() {
    return new BigFraction(image.getWidth()).divide(image.getHeight());
}

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From source file:com.netflix.imfutility.itunes.asset.ChapterAssetProcessorTest.java

@Test(expected = ImageValidationException.class)
public void testInvalidChapter() throws Exception {
    ChapterAssetProcessor processor = new ChapterAssetProcessor(metadataXmlProvider,
            TemplateParameterContextCreator.getWorkingDir());

    processor.setInputChapterItem(ChaptersXmlSampleBuilder.buildInputChapter())
            //  aspect ratio of image 16:9
            .setAspectRatio(new BigFraction(4).divide(3)).setChapterIndex(1)
            .process(AssetUtils.getTestCorrectChapterFile());
}

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From source file:com.netflix.imfutility.itunes.destcontext.VideoDestContextResolveStrategyTest.java

@Test(expected = ConversionException.class)
public void testIncorrectWidth() {
    VideoDestContextResolveStrategy resolveStrategy = new VideoDestContextResolveStrategy();

    resolveStrategy.setPackageType(ITunesPackageType.film).setWidth(639).setHeight(2160)
            .setFrameRate(new BigFraction(60)).setInterlaced(true);
    resolveStrategy.resolveContext(map);
}

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From source file:com.netflix.imfutility.util.ConversionHelper.java

/**
 * Transforms milliseconds to an SMPTE timecode according to the given edit unit rate.
 * <ul>//from w  w  w.j  av  a 2 s.  co m
 * <li>An example of edit units is a frame.</li>
 * <li>The output timecode has the following format 'hh:mm:ss:ff'.</li>
 * </ul>
 *
 * @param milliseconds milliseconds to be transformed
 * @param unitsInSec   edit unit rate
 * @return timecode as a string in "hh:mm:ss:ff" format.
 */
public static String msToSmpteTimecode(long milliseconds, BigFraction unitsInSec) {
    BigFraction ms = new BigFraction(milliseconds);
    BigFraction msInMin = new BigFraction(60 * 1000);
    BigFraction msInHour = new BigFraction(60 * 60 * 1000);
    BigFraction msInSec = new BigFraction(1000);
    BigFraction unitsInMs = unitsInSec.divide(msInSec);

    int hours = ms.divide(msInHour).intValue();
    int minutes = ms.subtract(msInHour.multiply(hours)).divide(msInMin).intValue();
    int seconds = ms.subtract(msInHour.multiply(hours)).subtract(msInMin.multiply(minutes)).divide(msInSec)
            .intValue();
    int units = ms.subtract(msInHour.multiply(hours)).subtract(msInMin.multiply(minutes))
            .subtract(msInSec.multiply(seconds)).multiply(unitsInMs).intValue();

    return String.format("%02d:%02d:%02d:%02d", hours, minutes, seconds, units);
}

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From source file:com.netflix.imfutility.itunes.asset.ChapterAssetProcessorTest.java

@Test(expected = AssetValidationException.class)
public void testInvalidFile() throws Exception {
    ChapterAssetProcessor processor = new ChapterAssetProcessor(metadataXmlProvider,
            TemplateParameterContextCreator.getWorkingDir());

    processor.setInputChapterItem(ChaptersXmlSampleBuilder.buildInputChapter())
            .setAspectRatio(new BigFraction(16).divide(9)).setChapterIndex(1).process(TestUtils.getTestFile());
}

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From source file:cc.redberry.core.number.Rational.java

/**
 * @see BigFraction#BigFraction(java.math.BigInteger)
 */
public Rational(BigInteger num) {
    checkNotNull(num);
    fraction = new BigFraction(num);
}

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