List of usage examples for java.awt RenderingHints KEY_INTERPOLATION
Key KEY_INTERPOLATION
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From source file:ch.rasc.downloadchart.DownloadChartServlet.java
private static void handleJpg(HttpServletResponse response, byte[] imageData, Integer width, Integer height, String filename, JpegOptions options) throws IOException { response.setContentType("image/jpeg"); response.setHeader("Content-Disposition", "attachment; filename=\"" + filename + ".jpg\";"); BufferedImage image = ImageIO.read(new ByteArrayInputStream(imageData)); Dimension newDimension = calculateDimension(image, width, height); int imgWidth = image.getWidth(); int imgHeight = image.getHeight(); if (newDimension != null) { imgWidth = newDimension.width;/* www . ja va 2s . c o m*/ imgHeight = newDimension.height; } BufferedImage newImage = new BufferedImage(imgWidth, imgHeight, BufferedImage.TYPE_INT_RGB); Graphics2D g = newImage.createGraphics(); g.drawImage(image, 0, 0, imgWidth, imgHeight, Color.BLACK, null); g.dispose(); if (newDimension != null) { g.setComposite(AlphaComposite.Src); g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY); g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); } try (ImageOutputStream ios = ImageIO.createImageOutputStream(response.getOutputStream())) { Iterator<ImageWriter> iter = ImageIO.getImageWritersByFormatName("jpg"); ImageWriter writer = iter.next(); ImageWriteParam iwp = writer.getDefaultWriteParam(); iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT); if (options != null && options.quality != null && options.quality != 0 && options.quality != 100) { iwp.setCompressionQuality(options.quality / 100f); } else { iwp.setCompressionQuality(1); } writer.setOutput(ios); writer.write(null, new IIOImage(newImage, null, null), iwp); writer.dispose(); } }
From source file:com.hmsinc.epicenter.spatial.render.SpatialScanRenderer.java
/** * @param context/*ww w . j ava 2s .co m*/ * @return */ private BufferedImage renderImage(final MapContext context, int width, int height) { logger.trace("Image width: {} height: {}", width, height); final BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); final Graphics2D graphics2D = (Graphics2D) image.getGraphics(); final GTRenderer renderer = new StreamingRenderer(); final RenderingHints h = new RenderingHints(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC); h.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY); h.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); h.put(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY); h.put(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE); renderer.setJava2DHints(h); renderer.setContext(context); renderer.paint(graphics2D, new Rectangle(width, height), context.getAreaOfInterest()); return image; }
From source file:com.sdk.connector.chart.TimeDomainRenderer.java
public TimeDomainRenderer(final String title, JPanel panel, String side, String type) { sdf = protocol.getTimestampFormat(); this.side = side + type; this.type = type; serie.setKey(side);/*from w ww . j a v a 2 s . c o m*/ dataset.addSeries(serie); String legendX = ""; if (type.startsWith(java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("RR"))) { legendX = java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle") .getString("timeRR.ylabel"); } else { legendX = java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle") .getString("timeBC.ylabel"); } chart = ChartFactory.createTimeSeriesChart(title, java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("time.xlabel"), legendX, dataset, true, true, false); chart.getRenderingHints().put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); chart.getRenderingHints().put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY); chart.getRenderingHints().put(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY); chart.getRenderingHints().put(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON); chart.getRenderingHints().put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC); chart.getRenderingHints().put(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE); chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON); chart.getRenderingHints().put(RenderingHints.KEY_TEXT_LCD_CONTRAST, 100); //chart.setBackgroundPaint(new GradientPaint(0, 0, Color.white, 0, 1000, Color.GREEN)); // chart.setBackgroundPaint(new Color(220,255,220,0)); //chart.setBackgroundImage(new javax.swing.ImageIcon(getClass().getResource("/com/sdk/connector/resources/background.png")).getImage()); chart.addSubtitle(rangeAnnotation); plot = (XYPlot) chart.getPlot(); XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer(); renderer.setSeriesLinesVisible(0, true); renderer.setSeriesShapesVisible(0, true); renderer.setBaseToolTipGenerator(new StandardXYToolTipGenerator( StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT, sdf, new DecimalFormat("0.00"))); renderer.setSeriesOutlinePaint(0, Color.BLACK); if (side.startsWith( java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("side.left"))) { renderer.setSeriesPaint(0, Color.BLUE); } else { renderer.setSeriesPaint(0, Color.RED); } renderer.setSeriesShape(0, new Ellipse2D.Double(-1.0, -1.0, 3.0, 3.0)); if (type.startsWith(java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("BC"))) { renderer.setSeriesShape(0, new Rectangle2D.Double(-1.0, -1.0, 3.0, 3.0)); } DateTickUnit dtUnit = new DateTickUnit(DateTickUnitType.MINUTE, 1, tickSDF); final DateAxis domainAxis = (DateAxis) plot.getDomainAxis(); domainAxis.setTickUnit(dtUnit); // ValueAxis axis = plot.getDomainAxis(); // axis = plot.getRangeAxis(); // ((NumberAxis) axis).setTickUnit(new NumberTickUnit(100)); plot.setRenderer(renderer); plot.setBackgroundPaint(Color.WHITE); plot.setDomainGridlinePaint(Color.BLACK); plot.setRangeGridlinePaint(Color.BLACK); plot.getRenderer().setSeriesStroke(0, new BasicStroke(1.0f)); // plot.getRenderer().setSeriesStroke(1, new BasicStroke(1.0f)); plot.setForegroundAlpha(0.5f); plot.setNoDataMessage( java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("CALIBRATING...")); plot.setRangePannable(true); plot.setDomainPannable(true); Color color1 = new Color(0, 0, 0, 24); Color color2 = new Color(255, 255, 255, 24); GradientPaint gp = new GradientPaint(0, 0, color1, 0, 0, color2); plot.setBackgroundPaint(gp); chartPanel = new ChartPanel(chart); chartPanel.addChartMouseListener(this); panel.setLayout(new GridLayout(0, 1)); panel.add(chartPanel); panel.repaint(); panel.revalidate(); }
From source file:ScaleTest_2008.java
/** * Progressive bilinear scaling: for any downscale size, scale * iteratively by halves using BILINEAR filtering until the proper * size is reached.//from w ww .ja v a 2s . c o m */ private BufferedImage getOptimalScalingImage(BufferedImage inputImage, int startSize, int endSize) { int currentSize = startSize; BufferedImage currentImage = inputImage; int delta = currentSize - endSize; int nextPow2 = currentSize >> 1; while (currentSize > 1) { if (delta <= nextPow2) { if (currentSize != endSize) { BufferedImage tmpImage = new BufferedImage(endSize, endSize, BufferedImage.TYPE_INT_RGB); Graphics g = tmpImage.getGraphics(); ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); g.drawImage(currentImage, 0, 0, tmpImage.getWidth(), tmpImage.getHeight(), null); currentImage = tmpImage; } return currentImage; } else { BufferedImage tmpImage = new BufferedImage(currentSize >> 1, currentSize >> 1, BufferedImage.TYPE_INT_RGB); Graphics g = tmpImage.getGraphics(); ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); g.drawImage(currentImage, 0, 0, tmpImage.getWidth(), tmpImage.getHeight(), null); currentImage = tmpImage; currentSize = currentImage.getWidth(); delta = currentSize - endSize; nextPow2 = currentSize >> 1; } } return currentImage; }
From source file:com.jaeksoft.searchlib.util.ImageUtils.java
public final static BufferedImage reduceImage(BufferedImage image, int width, int height) { int type = (image.getTransparency() == Transparency.OPAQUE) ? BufferedImage.TYPE_INT_RGB : BufferedImage.TYPE_INT_ARGB; BufferedImage ret = (BufferedImage) image; int w = image.getWidth(); int h = image.getHeight(); while (w != width || h != height) { if (w > width) { w /= 2;/*from w w w . ja v a2 s . c o m*/ if (w < width) w = width; } if (h > height) { h /= 2; if (h < height) h = height; } BufferedImage tmp = new BufferedImage(w, h, type); Graphics2D g2 = tmp.createGraphics(); g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); g2.drawImage(ret, 0, 0, w, h, null); g2.dispose(); ret = tmp; } return ret; }
From source file:PictureScaler.java
/** * Convenience method that returns a scaled instance of the * provided BufferedImage.//from ww w. j a v a2 s.co m * * * @param img the original image to be scaled * @param targetWidth the desired width of the scaled instance, * in pixels * @param targetHeight the desired height of the scaled instance, * in pixels * @param hint one of the rendering hints that corresponds to * RenderingHints.KEY_INTERPOLATION (e.g. * RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR, * RenderingHints.VALUE_INTERPOLATION_BILINEAR, * RenderingHints.VALUE_INTERPOLATION_BICUBIC) * @param progressiveBilinear if true, this method will use a multi-step * scaling technique that provides higher quality than the usual * one-step technique (only useful in down-scaling cases, where * targetWidth or targetHeight is * smaller than the original dimensions) * @return a scaled version of the original BufferedImage */ public BufferedImage getFasterScaledInstance(BufferedImage img, int targetWidth, int targetHeight, Object hint, boolean progressiveBilinear) { int type = (img.getTransparency() == Transparency.OPAQUE) ? BufferedImage.TYPE_INT_RGB : BufferedImage.TYPE_INT_ARGB; BufferedImage ret = img; BufferedImage scratchImage = null; Graphics2D g2 = null; int w, h; int prevW = ret.getWidth(); int prevH = ret.getHeight(); boolean isTranslucent = img.getTransparency() != Transparency.OPAQUE; if (progressiveBilinear) { // Use multi-step technique: start with original size, then // scale down in multiple passes with drawImage() // until the target size is reached w = img.getWidth(); h = img.getHeight(); } else { // Use one-step technique: scale directly from original // size to target size with a single drawImage() call w = targetWidth; h = targetHeight; } do { if (progressiveBilinear && w > targetWidth) { w /= 2; if (w < targetWidth) { w = targetWidth; } } if (progressiveBilinear && h > targetHeight) { h /= 2; if (h < targetHeight) { h = targetHeight; } } if (scratchImage == null || isTranslucent) { // Use a single scratch buffer for all iterations // and then copy to the final, correctly-sized image // before returning scratchImage = new BufferedImage(w, h, type); g2 = scratchImage.createGraphics(); } g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, hint); g2.drawImage(ret, 0, 0, w, h, 0, 0, prevW, prevH, null); prevW = w; prevH = h; ret = scratchImage; } while (w != targetWidth || h != targetHeight); if (g2 != null) { g2.dispose(); } // If we used a scratch buffer that is larger than our target size, // create an image of the right size and copy the results into it if (targetWidth != ret.getWidth() || targetHeight != ret.getHeight()) { scratchImage = new BufferedImage(targetWidth, targetHeight, type); g2 = scratchImage.createGraphics(); g2.drawImage(ret, 0, 0, null); g2.dispose(); ret = scratchImage; } return ret; }
From source file:com.openbravo.pos.util.ThumbNailBuilder.java
private Image createThumbNail(Image img) { // MaskFilter filter = new MaskFilter(Color.WHITE); // ImageProducer prod = new FilteredImageSource(img.getSource(), filter); // img = Toolkit.getDefaultToolkit().createImage(prod); int targetw;/*from w w w . j a v a2 s .c o m*/ int targeth; double scalex = (double) m_width / (double) img.getWidth(null); double scaley = (double) m_height / (double) img.getHeight(null); if (scalex < scaley) { targetw = m_width; targeth = (int) (img.getHeight(null) * scalex); } else { targetw = (int) (img.getWidth(null) * scaley); targeth = (int) m_height; } int midw = img.getWidth(null); int midh = img.getHeight(null); BufferedImage midimg = null; Graphics2D g2d = null; Image previmg = img; int prevw = img.getWidth(null); int prevh = img.getHeight(null); do { if (midw > targetw) { midw /= 2; if (midw < targetw) { midw = targetw; } } else { midw = targetw; } if (midh > targeth) { midh /= 2; if (midh < targeth) { midh = targeth; } } else { midh = targeth; } if (midimg == null) { midimg = new BufferedImage(midw, midh, BufferedImage.TYPE_INT_ARGB); g2d = midimg.createGraphics(); g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); } g2d.drawImage(previmg, 0, 0, midw, midh, 0, 0, prevw, prevh, null); prevw = midw; prevh = midh; previmg = midimg; } while (midw != targetw || midh != targeth); g2d.dispose(); if (m_width != midimg.getWidth() || m_height != midimg.getHeight()) { midimg = new BufferedImage(m_width, m_height, BufferedImage.TYPE_INT_ARGB); int x = (m_width > targetw) ? (m_width - targetw) / 2 : 0; int y = (m_height > targeth) ? (m_height - targeth) / 2 : 0; g2d = midimg.createGraphics(); g2d.drawImage(previmg, x, y, x + targetw, y + targeth, 0, 0, targetw, targeth, null); g2d.dispose(); previmg = midimg; } return previmg; }
From source file:com.sdk.connector.chart.FrequencyDomainRenderer.java
/** * Creates a new demo application.//from w ww.j av a 2 s . c o m * * @param title the frame title. */ public FrequencyDomainRenderer(String title, JPanel panel, String side, String type) { this.side = side; this.type = type; serie.setKey(side); dataset.addSeries(serie); JFreeChart chart = ChartFactory.createXYAreaChart(title, java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("frequency.xlabel"), java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("frequency.ylabel2"), dataset, PlotOrientation.VERTICAL, true, true, false); // TextTitle t1 = new TextTitle( "Espectro de Frequncia Estimado (PSD)", new Font("SansSerif", Font.BOLD, 14) ); // //TextTitle t2 = new TextTitle( "valores atualizados a cada potncia de 2", new Font("SansSerif", Font.PLAIN, 11) ); // chart.addSubtitle(t1); chart.getRenderingHints().put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); chart.getRenderingHints().put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY); chart.getRenderingHints().put(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY); chart.getRenderingHints().put(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON); chart.getRenderingHints().put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC); chart.getRenderingHints().put(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE); chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON); chart.getRenderingHints().put(RenderingHints.KEY_TEXT_LCD_CONTRAST, 100); //chart.addSubtitle(t2); plot = (XYPlot) chart.getPlot(); plot.setBackgroundPaint(Color.WHITE); plot.setDomainGridlinePaint(Color.BLUE); plot.setRangeGridlinePaint(Color.CYAN); plot.getRenderer().setSeriesStroke(0, new BasicStroke(2.0f)); plot.getRenderer().setSeriesStroke(1, new BasicStroke(2.0f)); //plot.setRangePannable(true); plot.setForegroundAlpha(0.65f); //XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer(); renderer = plot.getRenderer(); renderer.setSeriesOutlinePaint(0, Color.BLACK); if (side.startsWith( java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("side.left"))) { renderer.setSeriesPaint(0, Color.BLUE); } else { renderer.setSeriesPaint(0, Color.RED); } // renderer.setSeriesLinesVisible(0, true); // renderer.setSeriesShapesVisible(0, false); // renderer.setSeriesLinesVisible(1, true); // renderer.setSeriesShapesVisible(1, false); plot.setRenderer(renderer); plot.setBackgroundPaint(Color.WHITE); plot.setDomainGridlinePaint(Color.BLACK); plot.setRangeGridlinePaint(Color.BLACK); plot.setForegroundAlpha(0.5f); Color color1 = new Color(0, 0, 0, 24); Color color2 = new Color(255, 255, 255, 24); GradientPaint gp = new GradientPaint(0, 0, color1, 0, 0, color2); plot.setBackgroundPaint(gp); final ValueAxis domainAxis = plot.getDomainAxis(); domainAxis.setTickMarkPaint(Color.black); domainAxis.setLowerMargin(0.0); domainAxis.setUpperMargin(0.0); NumberAxis numDomainAxis = (NumberAxis) plot.getDomainAxis(); numDomainAxis.setAutoRangeIncludesZero(true); // // final NumberAxis rangeAxis = new LogarithmicAxis("Log(y)"); // // plot.setRangeAxis(rangeAxis); final ValueAxis rangeAxis = plot.getRangeAxis(); rangeAxis.setTickMarkPaint(Color.black); numRangeAxis = (NumberAxis) plot.getRangeAxis(); numRangeAxis.setAutoRangeIncludesZero(true); vlfTarget.setLabel("VLF"); vlfTarget.setLabelFont(new Font("SansSerif", Font.ITALIC, 9)); vlfTarget.setLabelAnchor(RectangleAnchor.CENTER); vlfTarget.setLabelTextAnchor(TextAnchor.CENTER); vlfTarget.setPaint(new Color(0, 100, 255, 128)); // plot.addRangeMarker(target, Layer.BACKGROUND); plot.addDomainMarker(vlfTarget, Layer.BACKGROUND); lfTarget.setLabel("LF"); lfTarget.setLabelFont(new Font("SansSerif", Font.ITALIC, 9)); lfTarget.setLabelAnchor(RectangleAnchor.CENTER); lfTarget.setLabelTextAnchor(TextAnchor.CENTER); lfTarget.setPaint(new Color(255, 255, 0, 128)); // plot.addRangeMarker(target, Layer.BACKGROUND); plot.addDomainMarker(lfTarget, Layer.BACKGROUND); hfTarget.setLabel("HF"); hfTarget.setLabelFont(new Font("SansSerif", Font.ITALIC, 9)); hfTarget.setLabelAnchor(RectangleAnchor.CENTER); hfTarget.setLabelTextAnchor(TextAnchor.CENTER); hfTarget.setPaint(new Color(255, 0, 255, 128)); // plot.addRangeMarker(target, Layer.BACKGROUND); plot.addDomainMarker(hfTarget, Layer.BACKGROUND); plot.setNoDataMessage( java.util.ResourceBundle.getBundle("com/sdk/connector/chart/Bundle").getString("message.wait")); chartPanel = new ChartPanel(chart); panel.setLayout(new GridLayout(0, 1)); panel.add(chartPanel); panel.repaint(); panel.revalidate(); }
From source file:com.piketec.jenkins.plugins.tpt.publisher.PieChart.java
/** * Render the pie chart with the given height * //ww w. j ava 2 s. c om * @param height * The height of the resulting image * @return The pie chart rendered as an image */ public BufferedImage render(int height) { BufferedImage image = new BufferedImage(totalWidth, totalHeight, BufferedImage.TYPE_INT_RGB); Graphics2D g2 = image.createGraphics(); g2.scale(zoom, zoom); // fill background to white g2.setColor(Color.WHITE); g2.fill(new Rectangle(totalWidth, totalHeight)); // prepare render hints g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g2.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY); g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC); g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON); g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY); g2.setStroke(new BasicStroke(4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND)); // draw shadow image g2.drawImage(pieShadow.getImage(), 0, 0, pieShadow.getImageObserver()); double start = 0; List<Arc2D> pies = new ArrayList<>(); // pie segmente erzeugen und fuellen if (total == 0) { g2.setColor(BRIGHT_GRAY); g2.fillOval(centerX - radius, centerY - radius, 2 * radius, 2 * radius); g2.setColor(Color.WHITE); g2.drawOval(centerX - radius, centerY - radius, 2 * radius, 2 * radius); } else { for (Segment s : segments) { double portionDegrees = s.getPortion() / total; Arc2D pie = paintPieSegment(g2, start, portionDegrees, s.getColor()); if (withSubSegments) { double smallRadius = radius * s.getSubSegmentRatio(); paintPieSegment(g2, start, portionDegrees, smallRadius, s.getColor().darker()); } start += portionDegrees; // portion degree jetzt noch als String (z.B. "17.3%" oder "20%" zusammenbauen) String p = String.format(Locale.ENGLISH, "%.1f", Math.rint(portionDegrees * 1000) / 10.0); p = removeSuffix(p, ".0"); // evtl. ".0" bei z.B. "25.0" abschneiden (-> "25") s.setPercent(p + "%"); pies.add(pie); } // weissen Rahmen um die pie segmente zeichen g2.setColor(Color.WHITE); for (Arc2D pie : pies) { g2.draw(pie); } } // Legende zeichnen renderLegend(g2); // "xx%" Label direkt auf die pie segmente zeichen g2.setColor(Color.WHITE); float fontSize = 32f; g2.setFont(NORMALFONT.deriveFont(fontSize).deriveFont(Font.BOLD)); start = 0; for (Segment s : segments) { if (s.getPortion() < 1E-6) { continue; // ignore segments with portions that are extremely small } double portionDegrees = s.getPortion() / total; double angle = start + portionDegrees / 2; // genau in der Mitte des Segments double xOffsetForCenteredTxt = 8 * s.getPercent().length(); // assume roughly 8px per char int x = (int) (centerX + 0.6 * radius * Math.sin(2 * Math.PI * angle) - xOffsetForCenteredTxt); int y = (int) (centerY - 0.6 * radius * Math.cos(2 * Math.PI * angle) + fontSize / 2); g2.drawString(s.getPercent(), x, y); start += portionDegrees; } return image; }
From source file:bachelorthesis.ocr.domain.DomainFacade.java
private Captcha createCaptcha(String buildString, int width, int height) throws RuntimeException { try {/*from w w w. j ava2s . co m*/ CaptchaBuilder captchaBuilder = new CaptchaBuilder(40, 50, buildString); Captcha c = captchaBuilder.buildCaptcha(); BufferedImage img = c.getImage(); // check if size == the default size (40*50) if not scale if (width != 40 || height != 50) { BufferedImage resized = new BufferedImage(width, height, img.getType()); Graphics2D g = resized.createGraphics(); g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); g.drawImage(img, 0, 0, width, height, 0, 0, img.getWidth(), img.getHeight(), null); g.dispose(); //build new CAPTCHA WITH THE NEW IMAGE SIZE c = new Captcha(c.getBuildSequence(), c.getAnswer(), c.isCaseSensative(), img, new Date()); } return c; } catch (ParseException ex) { Logger.getLogger(DomainFacade.class.getName()).log(Level.SEVERE, null, ex); throw new RuntimeException("error creating CAPTCHA"); } }