List of usage examples for java.lang Math ceil
public static double ceil(double a)
From source file:main.java.miro.browser.browser.widgets.browser.display.HeightModifier.java
@Override public void handleEvent(Event event) { GC gc;//from www .j a va 2s . com String textString = null; Text s = (Text) event.widget; int lineHeight = s.getLineHeight(); Rectangle cd = s.getClientArea(); int lineWidth = s.getClientArea().width; if (event.widget instanceof Text) { textString = s.getText(); gc = new GC(s); } else if (event.widget instanceof Link) { Link l = (Link) event.widget; textString = l.getText(); gc = new GC(l); } else { return; } int newLineCount = StringUtils.countMatches(textString, "\n"); if (newLineCount > 0) { // textString = textString.replace("\n", " "); // s.setText(textString); } newLineCount = StringUtils.countMatches(textString, "\n"); if (textString == null | textString.length() == 0) { textString = "None"; if (event.widget instanceof Text) { ((Text) event.widget).setText(textString); } else { ((Link) event.widget).setText(textString); } } RowData rowData = (RowData) field.getLayoutData(); // Calculate new height, based on strinWidth int stringWidth = gc.stringExtent(textString).x; // Divide by our width, factor is how many lines we expect from this // input double factor = stringWidth / (double) (lineWidth); int minLines = field.getMinLines(); int lines = Math.max((int) factor, minLines); // Calculate our new preferred height int height = (int) (Math.ceil(lines) * lineHeight); for (int i = 0; i < newLineCount; i++) { height += lineHeight; } // rowData.height = height; // if (height == 0 | height >= minLines) { // rowData.height = height; // } else if (height < minLines) { // rowData.height = minLines; // } // field.setLayoutData(rowData); Composite c = field.getParent(); while (!(c instanceof DisplayWidget)) { c = c.getParent(); } DisplayWidget dw = (DisplayWidget) c; dw.getParent().layout(); dw.getParent().getParent().layout(); Point size = dw.computeSize(dw.getSize().x, SWT.DEFAULT); // Point size = dw.computeSize(SWT.DEFAULT, SWT.DEFAULT); Point wat = dw.getParent().computeSize(SWT.DEFAULT, SWT.DEFAULT); ScrolledComposite scroller = (ScrolledComposite) dw.getParent(); scroller.setMinHeight(size.y); dw.layout(true); dw.pack(); }
From source file:io.cloudex.framework.partition.builtin.BinPackingPartition.java
@Override public List<Partition> partition() { Validate.notNull(this.items); // sort descending Collections.sort(items, Collections.reverseOrder()); // have we got a maximum set?, otherwise use the size of the largest item Long max = (this.maxBinItems != null) ? this.maxBinItems : items.get(0).getWeight(); PartitionUtils.setScale(items, max); long sum = PartitionUtils.sum(items, max); // check if the number of bins have already been set, in which case we have to fit everything in them if (this.numberOfBins == null) { // lower bound number of bin double numBins = (sum / (float) max); double numWholeBins = Math.floor(numBins); this.numberOfBins = (int) numWholeBins; double excess = numBins - numWholeBins; if (excess > newBinPercentage) { this.numberOfBins++; }// w w w . j a va2s . c o m } else { max = (long) Math.ceil(sum / (float) this.numberOfBins); } List<Partition> bins = new ArrayList<>(); if (this.numberOfBins == 1) { Partition bin = new Partition(); bins.add(bin); bin.addAll(items); items.clear(); } else { // Mix of First Fit Decreasing (FFD) strategy and Full Bin strategy for (int i = 0; i < this.numberOfBins; i++) { Partition bin = new Partition(); bins.add(bin); // check if we have ran out of items if (!items.isEmpty()) { Item largestItem = items.get(0); bin.add(largestItem); items.remove(largestItem); Long currentSum = bin.sum(); if (currentSum < max) { Long diff = max - currentSum; List<Item> toRemove = new ArrayList<>(); for (Item item : items) { //Item item = items.get(j); if (item.getWeight() <= diff) { bin.add(item); toRemove.add(item); if (item.getWeight() == diff) { break; } else { // look for an even small number to fill the gap diff = max - bin.sum(); } } } items.removeAll(toRemove); } } bin.calculateScale(); } /*if(!items.isEmpty()) { bins.get(bins.size() - 1).addAll(items); items.clear(); }*/ // spread out remaining items, this approximate if (!items.isEmpty()) { //bins.get(bins.size() - 1).addAll(items); //items.clear(); // items are in descending order // sort partitions in ascending order Collections.sort(bins); Partition smallest; long largestSum = bins.get(bins.size() - 1).sum(); int index = 0; do { smallest = bins.get(index); // spread the remaining items into the bins, largest item into smallest bin for (int i = 0; i < items.size(); i++) { smallest.add(items.remove(i)); if (smallest.sum() > largestSum) { break; } } index++; } while (!items.isEmpty()); items.clear(); } } return bins; }
From source file:edu.stanford.cfuller.imageanalysistools.filter.Kernel.java
public void formatTransformFrom1DInput(int size0, int size1) { int ydimPowOfTwo = size0; int xdimPowOfTwo = size1; if (!org.apache.commons.math3.util.ArithmeticUtils.isPowerOfTwo(ydimPowOfTwo) || !org.apache.commons.math3.util.ArithmeticUtils.isPowerOfTwo(xdimPowOfTwo)) { xdimPowOfTwo = (int) Math.pow(2, Math.ceil(Math.log(size1) / Math.log(2))); ydimPowOfTwo = (int) Math.pow(2, Math.ceil(Math.log(size0) / Math.log(2))); }//from w ww . j a v a 2 s . c o m Complex[][] colMajorImage = new Complex[xdimPowOfTwo][ydimPowOfTwo]; int counter = 0; for (int i = 0; i < colMajorImage.length; i++) { for (int j = 0; j < colMajorImage[0].length; j++) { colMajorImage[i][j] = new Complex(this.weights[counter++], this.weights[counter++]); } } this.transform = colMajorImage; }
From source file:ar.com.zauber.commons.dao.Paging.java
/** * Retorna el nmero de la ltima pgina.// w w w .j a v a2 s. co m * * @return the last page number */ public final int getLastPageNumber() { if (resultSize == null) { throw new IllegalStateException("No se sete el tamao del " + "resultado"); } return Math.round(new Float(Math.ceil((double) resultSize / resultsPerPage))); }
From source file:com.aliyun.fs.oss.nat.BufferReader.java
private void prepareBeforeFetch() throws IOException { if (algorithmVersion == 1) { this.fileContentLength = store.retrieveMetadata(key).getLength(); this.lengthToFetch = fileContentLength - pos; this.bufferSize = lengthToFetch < 16 * 1024 * 1024 ? 1024 * 1024 : (lengthToFetch > 1024 * 1024 * 1024 ? 64 * 1024 * 1024 : (int) (lengthToFetch / 16)); if (Math.log(bufferSize) / Math.log(2) != 0) { int power = (int) Math.ceil(Math.log(bufferSize) / Math.log(2)); this.bufferSize = (int) Math.pow(2, power); }//from ww w .j a va2 s.c om if (buffer == null) { buffer = new byte[bufferSize]; } this.concurrentStreams = conf.getInt("fs.oss.reader.concurrent.number", 4); if ((Math.log(concurrentStreams) / Math.log(2)) != 0) { int power = (int) Math.ceil(Math.log(concurrentStreams) / Math.log(2)); this.concurrentStreams = (int) Math.pow(2, power); } this.readers = new ConcurrentReader[concurrentStreams]; this.splitContentSize = new int[concurrentStreams * 2]; this.splitSize = bufferSize / concurrentStreams / 2; initializeTaskEngine(); } else { in = store.retrieve(key, pos); } }
From source file:edu.uga.cs.fluxbuster.clustering.hierarchicalclustering.DistanceMatrix.java
/** * Populate distance matrix from a list of matrix values specified in row * major order.//from ww w . j av a 2s .c o m * * @param vals * the matrix values */ private void populateDistanceMatrix(Vector<Float> vals) { int matrixdim = (int) Math.ceil(Math.sqrt(2 * vals.size())); int length = matrixdim - 1; int start = 0; for (int i = 0; i < matrixdim - 1; i++) { Vector<Float> row = new Vector<Float>(); row.addAll(vals.subList(start, start + length)); distMatrix.add(row); start += length; length--; } }
From source file:com.googlecode.psiprobe.jsp.VisualScoreTag.java
StringBuffer calculateSuffix(String body) {
if (value < minValue) {
log.info("value " + value + " is less than min value " + minValue);
value = minValue;// ww w.ja va2s.co m
}
if (value > maxValue) {
log.info("value " + value + " is greater than max value " + maxValue);
value = maxValue;
}
if (value + value2 < minValue || value2 < 0) {
log.info("value2 " + value2 + " is less than min value");
value2 = 0;
}
if (value + value2 > maxValue) {
log.info("value2 " + value2 + " is greater than max value");
value2 = maxValue - value;
}
double unitSize = (maxValue - minValue) / (fullBlocks * partialBlocks);
double blockWidth = unitSize * partialBlocks;
int fullRedBlockCount = (int) Math.floor(value / blockWidth);
int partialRedBlockIndex = (int) Math.floor((value - fullRedBlockCount * blockWidth) / unitSize);
int partialBlueBlockIndex1 = (partialRedBlockIndex > 0
? Math.min((int) Math.floor(value2 / unitSize), partialBlocks - partialRedBlockIndex)
: 0);
int fullBlueBlockCount = Math.max(0,
(int) Math.ceil(value2 / blockWidth) - (partialRedBlockIndex > 0 ? 1 : 0));
int partialBlueBlockIndex2 = (int) Math.floor(
(value2 - (fullBlueBlockCount * blockWidth) - (partialBlueBlockIndex1 * unitSize)) / unitSize);
StringBuffer buf = new StringBuffer();
// Beginning
if (showA) {
String format = WHITE_LEFT_BORDER;
if (fullRedBlockCount > 0 || partialRedBlockIndex > 0) {
format = RED_LEFT_BORDER;
} else if (partialBlueBlockIndex1 == 0 && (fullBlueBlockCount > 0 || partialBlueBlockIndex2 > 0)) {
format = BLUE_LEFT_BORDER;
}
buf.append(MessageFormat.format(body, new Object[] { format }));
}
// Full red blocks
String fullRedBody = MessageFormat.format(body, new Object[] { partialBlocks + "+0" });
for (int i = 0; i < fullRedBlockCount; i++) {
buf.append(fullRedBody);
}
// Mixed red/blue block (mid-block transition)
if (partialRedBlockIndex > 0) {
String partialBody = MessageFormat.format(body,
new Object[] { partialRedBlockIndex + "+" + partialBlueBlockIndex1 });
buf.append(partialBody);
}
// Full blue blocks
String fullBlueBody = MessageFormat.format(body, new Object[] { "0+" + partialBlocks });
for (int i = 0; i < fullBlueBlockCount; i++) {
buf.append(fullBlueBody);
}
// Partial blue block
if (partialBlueBlockIndex2 > 0) {
String partialBody = MessageFormat.format(body, new Object[] { "0+" + partialBlueBlockIndex2 });
buf.append(partialBody);
}
// Empty blocks
int emptyBlocks = showEmptyBlocks ? fullBlocks - (fullRedBlockCount + fullBlueBlockCount
+ (partialRedBlockIndex > 0 ? 1 : 0) + (partialBlueBlockIndex2 > 0 ? 1 : 0)) : 0;
if (emptyBlocks > 0) {
String emptyBody = MessageFormat.format(body, new Object[] { "0+0" });
for (int i = 0; i < emptyBlocks; i++) {
buf.append(emptyBody);
}
}
// End
if (showB) {
String format = WHITE_RIGHT_BORDER;
if (fullRedBlockCount == fullBlocks) {
format = RED_RIGHT_BORDER;
} else if (fullRedBlockCount + (partialRedBlockIndex + partialBlueBlockIndex1 == partialBlocks ? 1 : 0)
+ fullBlueBlockCount == fullBlocks) {
format = BLUE_RIGHT_BORDER;
}
buf.append(MessageFormat.format(body, new Object[] { format }));
}
return buf;
}
From source file:info.raack.appliancedetection.evaluation.model.appliance.SineWaveDevice.java
protected int powerDrawAtOnCycleTimestep(int totalSeconds, int secondIndex, int globalTimestep) { return (int) (Math.sin((2 * Math.PI) * (float) secondIndex / wavelength) * maxAmplitude) + (int) Math.ceil(maxAmplitude); }
From source file:ldbc.snb.datagen.generator.PostGenerator.java
public long createPosts(RandomGeneratorFarm randomFarm, final Forum forum, final ArrayList<ForumMembership> memberships, long numPosts, long startId, PersonActivityExporter exporter) throws IOException { long postId = startId; Properties prop = new Properties(); prop.setProperty("type", "post"); ArrayList<Post> result = new ArrayList<Post>(); for (ForumMembership member : memberships) { double numPostsMember = numPosts / (double) memberships.size(); if (numPostsMember < 1.0) { double prob = randomFarm.get(RandomGeneratorFarm.Aspect.NUM_POST).nextDouble(); if (prob < numPostsMember) numPostsMember = 1.0;/*w ww . jav a 2 s .co m*/ } else { numPostsMember = Math.ceil(numPostsMember); } for (int i = 0; i < (int) (numPostsMember); ++i) { PostInfo postInfo = generatePostInfo(randomFarm.get(RandomGeneratorFarm.Aspect.TAG), randomFarm.get(RandomGeneratorFarm.Aspect.DATE), forum, member); if (postInfo != null) { String content = ""; // crear properties class para passar content = this.generator_.generateText(member.person(), postInfo.tags, prop); post_.initialize(SN.formId(SN.composeId(postId++, postInfo.date)), postInfo.date, member.person(), forum.id(), content, postInfo.tags, Dictionaries.ips.getIP(randomFarm.get(RandomGeneratorFarm.Aspect.IP), randomFarm.get(RandomGeneratorFarm.Aspect.DIFF_IP), randomFarm.get(RandomGeneratorFarm.Aspect.DIFF_IP_FOR_TRAVELER), member.person().ipAddress(), postInfo.date), Dictionaries.browsers.getPostBrowserId( randomFarm.get(RandomGeneratorFarm.Aspect.DIFF_BROWSER), randomFarm.get(RandomGeneratorFarm.Aspect.BROWSER), member.person().browserId()), forum.language()); if (richRdf) { post_.richRdf(true); if (randomFarm.get(RandomGeneratorFarm.Aspect.POST_MENTIONED).nextDouble() > 0.6) { TreeSet<Long> t = new TreeSet<Long>(); // The user mentions one or more (up to 4) members of the forum t.add(memberships .get(randomFarm.get(RandomGeneratorFarm.Aspect.MEMBERSHIP_INDEX_POST_MENTIONED) .nextInt(memberships.size())) .person().accountId()); double probabilityForNumberOfMentions = randomFarm .get(RandomGeneratorFarm.Aspect.POST_MENTIONED_NUM).nextDouble(); if (probabilityForNumberOfMentions > 0.5) t.add(memberships.get( randomFarm.get(RandomGeneratorFarm.Aspect.MEMBERSHIP_INDEX_POST_MENTIONED) .nextInt(memberships.size())) .person().accountId()); if (probabilityForNumberOfMentions > 0.75) t.add(memberships.get( randomFarm.get(RandomGeneratorFarm.Aspect.MEMBERSHIP_INDEX_POST_MENTIONED) .nextInt(memberships.size())) .person().accountId()); if (probabilityForNumberOfMentions > 0.95) t.add(memberships.get( randomFarm.get(RandomGeneratorFarm.Aspect.MEMBERSHIP_INDEX_POST_MENTIONED) .nextInt(memberships.size())) .person().accountId()); post_.mentioned(t); } if (randomFarm.get(RandomGeneratorFarm.Aspect.POST_VISIBILITY).nextDouble() > 0.95) { if (post_.mentioned() == null || randomFarm .get(RandomGeneratorFarm.Aspect.POST_VISIBILITY_TF).nextDouble() > 0.5) post_.setPublic(true); else post_.setPublic(false); } if (randomFarm.get(RandomGeneratorFarm.Aspect.POST_LINK).nextDouble() > 0.57) { post_.link("http://ld.bc/" + RandomStringUtils.random(6, true, false)); } } if (richRdf && randomFarm.get(RandomGeneratorFarm.Aspect.POST_COUNTRY).nextDouble() > 0.02) post_.countryKnown(false); exporter.export(post_); if (randomFarm.get(RandomGeneratorFarm.Aspect.NUM_LIKE).nextDouble() <= 0.1) { likeGenerator_.generateLikes(randomFarm.get(RandomGeneratorFarm.Aspect.NUM_LIKE), forum, post_, Like.LikeType.POST, exporter); } //// generate comments int numComments = randomFarm.get(RandomGeneratorFarm.Aspect.NUM_COMMENT) .nextInt(DatagenParams.maxNumComments + 1); postId = commentGenerator_.createComments(randomFarm, forum, post_, numComments, postId, exporter); } } } return postId; }
From source file:io.github.apfelcreme.Guilds.UUIDFetcher.java
public Map<String, UUID> call() throws Exception { Map<String, UUID> uuidMap = new HashMap<String, UUID>(); int requests = (int) Math.ceil(names.size() / PROFILES_PER_REQUEST); for (int i = 0; i < requests; i++) { HttpURLConnection connection = createConnection(); String body = JSONArray.toJSONString(names.subList(i * 100, Math.min((i + 1) * 100, names.size()))); writeBody(connection, body);// www .j ava2 s .c om JSONArray array = (JSONArray) jsonParser.parse(new InputStreamReader(connection.getInputStream())); for (Object profile : array) { JSONObject jsonProfile = (JSONObject) profile; String id = (String) jsonProfile.get("id"); String name = (String) jsonProfile.get("name"); UUID uuid = UUIDFetcher.getUUID(id); uuidMap.put(name, uuid); } if (rateLimiting && i != requests - 1) { Thread.sleep(10L); } } return uuidMap; }