Example usage for java.lang Math floor

List of usage examples for java.lang Math floor

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Introduction

In this page you can find the example usage for java.lang Math floor.

Prototype

public static double floor(double a)

Source Link

Document

Returns the largest (closest to positive infinity) double value that is less than or equal to the argument and is equal to a mathematical integer.

Usage

From source file:MediaControl.java

private static String formatTime(Duration elapsed, Duration duration) {
    int intElapsed = (int) Math.floor(elapsed.toSeconds());
    int elapsedHours = intElapsed / (60 * 60);
    if (elapsedHours > 0) {
        intElapsed -= elapsedHours * 60 * 60;
    }/*from w w  w . java  2  s.  co  m*/
    int elapsedMinutes = intElapsed / 60;
    int elapsedSeconds = intElapsed - elapsedHours * 60 * 60 - elapsedMinutes * 60;

    if (duration.greaterThan(Duration.ZERO)) {
        int intDuration = (int) Math.floor(duration.toSeconds());
        int durationHours = intDuration / (60 * 60);
        if (durationHours > 0) {
            intDuration -= durationHours * 60 * 60;
        }
        int durationMinutes = intDuration / 60;
        int durationSeconds = intDuration - durationHours * 60 * 60 - durationMinutes * 60;
        if (durationHours > 0) {
            return String.format("%d:%02d:%02d/%d:%02d:%02d", elapsedHours, elapsedMinutes, elapsedSeconds,
                    durationHours, durationMinutes, durationSeconds);
        } else {
            return String.format("%02d:%02d/%02d:%02d", elapsedMinutes, elapsedSeconds, durationMinutes,
                    durationSeconds);
        }
    } else {
        if (elapsedHours > 0) {
            return String.format("%d:%02d:%02d", elapsedHours, elapsedMinutes, elapsedSeconds);
        } else {
            return String.format("%02d:%02d", elapsedMinutes, elapsedSeconds);
        }
    }
}

From source file:gdsc.smlm.model.StandardFluorophoreSequenceModel.java

private static int nextGeometric(RandomDataGenerator rand, double mean) {
    // Use a geometric distribution by sampling the floor from the exponential.
    // Geometric distribution where k { 0, 1, 2, ... }
    // See: http://en.wikipedia.org/wiki/Geometric_distribution#Related_distributions
    final double p = 1 / (1 + mean);
    return (int) Math.floor(Math.log(rand.nextUniform(0, 1, true)) / Math.log(1 - p));
}

From source file:clus.heuristic.FTest.java

public static double calcVarianceReductionHeuristic(double n_tot, double ss_tot, double ss_sum) {
    double value = ss_tot - ss_sum;
    if (value < MathUtil.C1E_9) {
        // Gain too small
        return Double.NEGATIVE_INFINITY;
    }/*from   w  w  w. j av  a  2  s.  co  m*/
    if (Settings.FTEST_LEVEL == 0) {
        // No F-test -> just return value
        return value;
    }
    int n_2 = (int) Math.floor(n_tot - 2.0 + 0.5);
    if (n_2 <= 0) {
        return Double.NEGATIVE_INFINITY;
    } else {
        if (FTest.ftest(Settings.FTEST_LEVEL, ss_tot, ss_sum, n_2)) {
            return value;
        } else {
            return Double.NEGATIVE_INFINITY;
        }
    }
}

From source file:com.fengduo.bee.commons.util.StringFormatter.java

public static int getWordSizeInt(String str) {
    return (int) Math.floor(getWordSize(str));
}

From source file:com.itemanalysis.jmetrik.stats.descriptives.DescriptiveAnalysis.java

public void publishHeader() throws IllegalArgumentException {
    StringBuilder header = new StringBuilder();
    Formatter f = new Formatter(header);
    String s1 = String.format("%1$tB %1$te, %1$tY  %tT", Calendar.getInstance());
    int len = 21 + Double.valueOf(Math.floor(Double.valueOf(s1.length()).doubleValue() / 2.0)).intValue();
    String dString = "";
    try {/*from w  ww  . j  a v a 2 s  .  c  o m*/
        dString = command.getDataString();
    } catch (IllegalArgumentException ex) {
        throw new IllegalArgumentException(ex);
    }
    int len2 = 21 + Double.valueOf(Math.floor(Double.valueOf(dString.length()).doubleValue() / 2.0)).intValue();

    f.format("%31s", "DESCRIPTIVE STATISTICS");
    f.format("%n");
    f.format("%" + len2 + "s", dString);
    f.format("%n");
    f.format("%" + len + "s", s1);
    f.format("%n");
    f.format("%n");
    publish(f.toString());
}

From source file:eu.matejkormuth.rpgdavid.starving.listeners.HiddenCommandsListener.java

@EventHandler
private void onCommand(final PlayerCommandPreprocessEvent event) {
    // Command for listing all items.
    if (event.getMessage().equalsIgnoreCase("/items")) {
        List<Item> items = Starving.getInstance().getItemManager().getItems();
        for (int j = 0; j < items.size(); j++) {
            Item i = items.get(j);/*from   w  w w  .java  2  s  .  co  m*/
            event.getPlayer().sendMessage(j + " - " + i.getName());
        }
    }
    // Command for giving custom items.
    else if (event.getMessage().contains("/itemsgive")) {
        List<Item> items = Starving.getInstance().getItemManager().getItems();
        for (int j = 0; j < items.size(); j++) {
            Item i = items.get(j);
            if (j == Integer.valueOf(event.getMessage().split(Pattern.quote(" "))[1])) {
                event.getPlayer().getInventory().addItem(i.toItemStack());
            }

        }
    }
    // Command for giving custom chemicals.
    else if (event.getMessage().contains("/chemical")) {
        if (!event.getMessage().contains(" ")) {
            event.getPlayer().sendMessage("args missing!");
        }

        String args = event.getMessage().split(Pattern.quote(" "))[1];
        String[] chemicals = args.split(Pattern.quote(","));

        ChemicalItem ci = new ChemicalItem("spawnedChemicalItem", new ChemicalCompound()) {
            @Override
            public Recipe getRecipe() {
                return null;
            }

            @Override
            protected void onConsume0(Player player) {
            }
        };

        for (String chemical : chemicals) {
            String[] parts = chemical.split(Pattern.quote(":"));
            String name = parts[0];
            String amount = parts[1];
            for (Chemical ch : Chemicals.all()) {
                if (ch.getName().equalsIgnoreCase(name)) {
                    ci.getContents().add(ch, Float.valueOf(amount));
                }
            }
        }

        event.getPlayer().getInventory().addItem(ci.toItemStack());
    }
    // Command for setting entities target.
    else if (event.getMessage().contains("/settarget")) {
        String[] parts = event.getMessage().split(" ");
        int entity = Integer.valueOf(parts[1]);
        int target = Integer.valueOf(parts[2]);
        for (Entity e : Worlds.first().getEntities()) {
            if (e.getEntityId() == target) {
                Starving.getInstance().getZombieManager().get(entity).setFollowTarget(e);
            }
        }
    }
    // Command for spawning zombie walking the dog.
    else if (event.getMessage().contains("/zombieeaster")) {
        ZombieWithDog.spawn(event.getPlayer().getLocation());
    }
    // Command for settings time.
    else if (event.getMessage().contains("/time set")) {
        String[] parts = event.getMessage().split(" ");
        int time = Integer.valueOf(parts[2]);
        event.getPlayer().sendMessage(ChatColor.YELLOW + "[Starving] Shifting time...");
        Starving.getInstance().getRegistered(TimeUpdater.class).vanllaSetMoveTime(time);
        event.getPlayer().sendMessage(ChatColor.GREEN + "[Starving] Time set!");
    }
    // Command for spawning zombie.
    else if (event.getMessage().contains("/zombie")) {
        String[] parts = event.getMessage().split(" ");
        if (parts.length == 2) {
            int count = Integer.valueOf(parts[1]);

            for (int i = 0; i < count; i++) {
                Starving.getInstance().getZombieManager().spawnAt(event.getPlayer().getLocation()
                        .add((Math.random() - 0.5) * count / 4, 0, (Math.random() - 0.5) * count / 4));
            }
        } else {
            Starving.getInstance().getZombieManager().spawnAt(event.getPlayer().getLocation());
        }
    }
    // Command for testing some random things.
    else if (event.getMessage().contains("/darkness")) {
        ((CraftPlayer) event.getPlayer()).getHandle().playerConnection
                .sendPacket(new PacketPlayOutGameStateChange(7, 0.001f));
        ((CraftPlayer) event.getPlayer()).getHandle().playerConnection
                .sendPacket(new PacketPlayOutGameStateChange(8, 160));
    }
    // Command for testing some random things.
    else if (event.getMessage().contains("/npctest")) {
        String name = "debilko" + (int) Math.floor(Math.random() * 1000000);
        NPC npc = Starving.getInstance().getNPCManager().getMainRegistry().createPlayer()
                .withProfile(UUID.nameUUIDFromBytes(name.getBytes()), name)
                .withSpawnLocation(event.getPlayer().getLocation()).spawn();

        event.getPlayer().teleport(npc.getLocation());
    }
    // Command for generating access key.
    else if (event.getMessage().contains("/genkey")) {
        char[] VALID_CHARS = "0123456789abcdefghijklmnopqrstuvwxyz".toCharArray();
        int keyLength = 32;
        char[] key = new char[keyLength];
        for (int i = 0; i < keyLength; i++) {
            key[i] = VALID_CHARS[RandomUtils.nextInt(VALID_CHARS.length - 1)];
        }
        event.getPlayer().sendMessage("Your new accesskey is: " + new String(key));
        Data.of(event.getPlayer()).setRemoteAccesKey(new String(key));
        event.getPlayer().sendMessage("http://starving.eu/key.php?key=" + new String(key));
    }
    // Command for opening custom items inventory.
    else if (event.getMessage().contains("/itemsinv")) {
        ItemManager im = Starving.getInstance().getItemManager();
        int size = (im.getItems().size() / 9);
        Inventory inv = Bukkit.createInventory(null, 9 * (size + 1), ChatColor.GOLD + "Custom items: ");
        List<Item> sorted = im.getItems();
        Collections.sort(sorted, new ItemNameComparator());
        for (Item i : sorted) {
            inv.addItem(i.toItemStack());
        }
        event.getPlayer().openInventory(inv);
    }
    // Command for testing some random things.
    else if (event.getMessage().contains("/itemdropvehicle")) {
        org.bukkit.entity.Item i = ItemDrops.drop(event.getPlayer().getLocation(), Items.of(Material.APPLE));
        i.setVelocity(event.getPlayer().getEyeLocation().getDirection().multiply(3));
        i.setPassenger(event.getPlayer());
        i.setPickupDelay(20 * 15);
    }
    // Command for testing some random things.
    else if (event.getMessage().contains("/peadd")) {
        // FIXME: Please, remove this soon. Only for testing.
        ParticleEmitter pe = new ParticleEmitter(new Location(Bukkit.getWorld("Beta"), 571.5, 68, -235.5), 1f,
                40, ParticleEffect.SMOKE_LARGE);
        pe.setOffsets(0.5f, 0.1f, 0.5f);
        pe.setDirection(new Vector(0.1f, 0, 0.15f));
        Starving.getInstance().getParticleEmmiters().add(pe);
        ParticleEmitter pe2 = new ParticleEmitter(new Location(Bukkit.getWorld("Beta"), 571.5, 68, -235.5), 1f,
                80, ParticleEffect.REDSTONE);
        pe2.setOffsets(0.5f, 0.1f, 0.5f);
        pe2.setColor(new ParticleEffect.OrdinaryColor(255, 0, 255));
        //pe2.setDirection(new Vector(0.1f, 0, 0.15f));
        Starving.getInstance().getParticleEmmiters().add(pe2);
    }
    // Command for testing some random things.
    else if (event.getMessage().contains("/peclear")) {
        Starving.getInstance().getParticleEmmiters().clear();
    }
    // Command for testing some random things.
    else if (event.getMessage().contains("/ason")) {
        Starving.getInstance().getAmbientSoundManager().addPlayer(event.getPlayer());
    }
    // Command for testing some random things.
    else if (event.getMessage().contains("/asoff")) {
        Starving.getInstance().getAmbientSoundManager().removePlayer(event.getPlayer());
    }
}

From source file:edu.csun.ecs.cs.multitouchj.application.whiteboard.ui.InteractiveCanvas.java

protected void drawPoints() {
    synchronized (previousPoints) {
        synchronized (resizableBufferedImage) {
            // clear points for pen if it's been long since last changed
            long currentTime = new Date().getTime();
            for (int id : pens.keySet()) {
                if (previousTimes.containsKey(id)) {
                    long time = previousTimes.get(id);
                    if ((currentTime - time) > POINT_CLEAR_DURATION) {
                        previousPoints.remove(id);
                        previousTimes.remove(id);
                    }//from   w ww.j av a2s.co m
                }
            }

            DisplayMode displayMode = getWindowManager().getDisplayManager().getCurrentDisplayMode();
            BufferedImage bufferedImage = resizableBufferedImage.getBufferedImage();

            Graphics2D graphics = bufferedImage.createGraphics();
            for (int id : pens.keySet()) {
                Pen pen = pens.get(id);
                LinkedList<Point> points = previousPoints.get(id);
                if ((pen != null) && (points != null) && (points.size() > 1)) {
                    log.debug("id: " + id + ", points: " + points.size());

                    Point previousPoint = points.removeFirst();
                    Iterator<Point> iterator = points.iterator();
                    while (iterator.hasNext()) {
                        Point point = iterator.next();
                        if (iterator.hasNext()) {
                            iterator.remove();
                        }

                        graphics.setStroke(pen.getStroke());
                        graphics.setPaint(pen.getPaint());
                        graphics.drawLine((int) Math.floor(previousPoint.getX()),
                                (displayMode.getHeight() - (int) Math.floor(previousPoint.getY())),
                                (int) Math.floor(point.getX()),
                                (displayMode.getHeight() - (int) Math.floor(point.getY())));

                        previousPoint = point;
                    }

                    setDirty(true);
                }
            }
            graphics.dispose();
        }
    }
}

From source file:gov.nih.nci.caintegrator.common.Cai2Util.java

/**
 * Used by classes to create a palette of unique colors.
 * @param totalNumberOfUniqueColors - total number of unique colors to be created in the palette.
 *///from w  ww  . j  av  a2  s  .c  o m
public static void setColorPalette(int totalNumberOfUniqueColors) {
    for (int i = 0; i < MAX_ANGLE_CONSTANT; i += MAX_ANGLE_CONSTANT / totalNumberOfUniqueColors) {
        double colorNumberAsAngle = i * GOLDEN_ANGLE;
        double hue = colorNumberAsAngle - Math.floor(colorNumberAsAngle);
        COLOR_PALETTE.add(Color.getHSBColor((float) hue, (float) COLOR_SATURATION, (float) COLOR_BRIGHTNESS));
    }
}

From source file:azkaban.metric.inmemoryemitter.InMemoryMetricEmitter.java

/**
 * filter snapshots by evenly selecting points across the interval
 * @param selectedLists list of snapshots
 *///  w  ww .j a  v a 2  s  .  c  o  m
private void generalSelectMetricHistory(final LinkedList<InMemoryHistoryNode> selectedLists) {
    logger.debug("selecting snapshots evenly from across the time interval");
    if (selectedLists.size() > numInstances) {
        double step = (double) selectedLists.size() / numInstances;
        long nextIndex = 0, currentIndex = 0, numSelectedInstances = 1;
        Iterator<InMemoryHistoryNode> ite = selectedLists.iterator();
        while (ite.hasNext()) {
            ite.next();
            if (currentIndex == nextIndex) {
                nextIndex = (long) Math.floor(numSelectedInstances * step + 0.5);
                numSelectedInstances++;
            } else {
                ite.remove();
            }
            currentIndex++;
        }
    }
}

From source file:projects.hip.exec.HrDiagram.java

/**
 * Update the {@link HrDiagram#hrDiagPanel}.
 *//*from   ww  w  .j  a va  2  s. com*/
private void updateChart() {

    XYSeries series = new XYSeries("Hipparcos HR diagram");

    // Build a histogram of distance

    // Number of bins
    int bins = (int) Math.ceil((d_max - d_min) / d_step);
    // Histogram data
    double[] d_hist = new double[bins];

    // Count the stars
    int n = 0;

    for (HipStar hipStar : hipStars) {

        // Get the Hipparcos magnitude and colour indices
        double h = hipStar.Hpmag;
        double bv = hipStar.bv;
        //         double vi = hipStar.vi;

        // Use the parallax to correct the apparent magnitude to absolute magnitude.

        // Extract the parallax and error to use
        double p = hipStar.Plx;
        double sigma_p = hipStar.e_Plx;

        // Filter on the fractional parallax error
        double f = sigma_p / Math.abs(p);
        if (f > fMax) {
            continue;
        }

        // Filter out objects with no B-V index
        if (bv == 0.0) {
            continue;
        }

        // Correct to arcseconds
        p /= 1000;
        sigma_p /= 1000;

        // Get the distance
        double d = DistanceFromParallax.getDistance(p, sigma_p, method);

        // Filter & convert to absolute magnitude
        if (d > 0 && !Double.isInfinite(d)) {

            n++;

            double H = MagnitudeUtils.getAbsoluteMagnitude(d, h);
            series.add(bv, H);

            // Add to distance histogram
            if (d > d_min && d < d_max) {
                int bin = (int) Math.floor((d - d_min) / d_step);
                d_hist[bin]++;
            }
        }
    }

    logger.log(Level.INFO, "Plotting " + n + " Hipparcos stars.");

    JFreeChart hrChart = getHrChart(series);
    if (hrDiagPanel == null) {
        // Branch is used on initialisation
        hrDiagPanel = new ChartPanel(hrChart);
    } else {
        hrDiagPanel.setChart(hrChart);
    }

    JFreeChart dChart = getDistanceChart(d_hist);
    if (dDistPanel == null) {
        // Branch is used on initialisation
        dDistPanel = new ChartPanel(dChart);
    } else {
        dDistPanel.setChart(dChart);
    }
}