Example usage for java.awt Graphics2D getTransform

Introduction

In this page you can find the example usage for java.awt Graphics2D getTransform.

Prototype

public abstract AffineTransform getTransform();

Source Link

Document

Returns a copy of the current Transform in the Graphics2D context.

Usage

From source file:Java2DUtils.java

@SuppressWarnings("unchecked")
public static void setTransform(Graphics2D g2, AffineTransform transform) {
    AffineTransform current;//ww w  .  j a  v  a 2 s  .c  o  m

    current = g2.getTransform();
    transforms.push(current);
    g2.setTransform(transform);
}

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From source file:Main.java

/**
 * Draws a shape with the specified rotation about <code>(x, y)</code>.
 *
 * @param g2  the graphics device (<code>null</code> not permitted).
 * @param shape  the shape (<code>null</code> not permitted).
 * @param angle  the angle (in radians).
 * @param x  the x coordinate for the rotation point.
 * @param y  the y coordinate for the rotation point.
 *///ww w. j  a  v a 2 s  .c om
public static void drawRotatedShape(final Graphics2D g2, final Shape shape, final double angle, final float x,
        final float y) {

    final AffineTransform saved = g2.getTransform();
    final AffineTransform rotate = AffineTransform.getRotateInstance(angle, x, y);
    g2.transform(rotate);
    g2.draw(shape);
    g2.setTransform(saved);

}

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From source file:com.liusoft.dlog4j.util.ImageUtils.java

/**
 * ???//from w  ww  . j  a va2  s .co m
 * ?????
 * 3: 180
 * 6: 90
 * 8: 27090
 * @param img_fn
 * @param orient
 * @throws IOException 
 */
public static boolean rotateImage(String img_fn, int orient, String dest_fn) throws IOException {
    double radian = 0;
    switch (orient) {
    case 3:
        radian = 180.0;
        break;
    case 6:
        radian = 90.0;
        break;
    case 8:
        radian = 270.0;
        break;
    default:
        return false;
    }
    BufferedImage old_img = (BufferedImage) ImageIO.read(new File(img_fn));
    int width = old_img.getWidth();
    int height = old_img.getHeight();

    BufferedImage new_img = new BufferedImage(height, width, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2d = new_img.createGraphics();

    AffineTransform origXform = g2d.getTransform();
    AffineTransform newXform = (AffineTransform) (origXform.clone());
    // center of rotation is center of the panel
    double xRot = 0;
    double yRot = 0;
    switch (orient) {
    case 3:
        xRot = width / 2.0;
        yRot = height / 2.0;
    case 6:
        xRot = height / 2.0;
        yRot = xRot;
        break;
    case 8:
        xRot = width / 2.0;
        yRot = xRot;
        break;
    default:
        return false;
    }
    newXform.rotate(Math.toRadians(radian), xRot, yRot);

    g2d.setTransform(newXform);
    // draw image centered in panel
    g2d.drawImage(old_img, 0, 0, null);
    // Reset to Original
    g2d.setTransform(origXform);

    FileOutputStream out = new FileOutputStream(dest_fn);
    try {
        ImageIO.write(new_img, "JPG", out);
    } finally {
        out.close();
    }
    return true;
}

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From source file:net.sf.mzmine.chartbasics.graphicsexport.ChartExportUtil.java

/**
 * Paints a chart with scaling options/*from   ww  w.  ja v  a2  s . com*/
 * 
 * @param chart
 * @param info
 * @param out
 * @param width
 * @param height
 * @param resolution
 * @return BufferedImage of a given chart with scaling to resolution
 * @throws IOException
 */
private static BufferedImage paintScaledChartToBufferedImage(JFreeChart chart, ChartRenderingInfo info,
        OutputStream out, int width, int height, int resolution, int bufferedIType) throws IOException {
    Args.nullNotPermitted(out, "out");
    Args.nullNotPermitted(chart, "chart");

    double scaleX = resolution / 72.0;
    double scaleY = resolution / 72.0;

    double desiredWidth = width * scaleX;
    double desiredHeight = height * scaleY;
    double defaultWidth = width;
    double defaultHeight = height;
    boolean scale = false;

    // get desired width and height from somewhere then...
    if ((scaleX != 1) || (scaleY != 1)) {
        scale = true;
    }

    BufferedImage image = new BufferedImage((int) desiredWidth, (int) desiredHeight, bufferedIType);
    Graphics2D g2 = image.createGraphics();

    if (scale) {
        AffineTransform saved = g2.getTransform();
        g2.transform(AffineTransform.getScaleInstance(scaleX, scaleY));
        chart.draw(g2, new Rectangle2D.Double(0, 0, defaultWidth, defaultHeight), info);
        g2.setTransform(saved);
        g2.dispose();
    } else {
        chart.draw(g2, new Rectangle2D.Double(0, 0, defaultWidth, defaultHeight), info);
    }
    return image;
}

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From source file:Main.java

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    int[] x = { 0, 100, 100, 0, 0, 75, 75, 125, 25, 50 };
    int[] y = { 0, 10, 10, 100, 25, 125, 75, 75, 510, 50 };
    Graphics2D g2d = (Graphics2D) g;
    AffineTransform at0 = g2d.getTransform();
    g2d.scale(size / 100, size / 100);/*  ww  w  .j  av  a2 s  .  c  o m*/
    g.drawPolyline(x, y, x.length);
    g2d.setTransform(at0);
}

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From source file:Main.java

public void paint(Graphics g, JComponent c) {

    JLabel label = (JLabel) c;
    String text = label.getText();
    Icon icon = (label.isEnabled()) ? label.getIcon() : label.getDisabledIcon();

    if ((icon == null) && (text == null)) {
        return;//from   w w  w.j  av  a2  s . c  om
    }

    FontMetrics fm = g.getFontMetrics();
    paintViewInsets = c.getInsets(paintViewInsets);

    paintViewR.x = paintViewInsets.left;
    paintViewR.y = paintViewInsets.top;

    // Use inverted height & width
    paintViewR.height = c.getWidth() - (paintViewInsets.left + paintViewInsets.right);
    paintViewR.width = c.getHeight() - (paintViewInsets.top + paintViewInsets.bottom);

    paintIconR.x = paintIconR.y = paintIconR.width = paintIconR.height = 0;
    paintTextR.x = paintTextR.y = paintTextR.width = paintTextR.height = 0;

    String clippedText = layoutCL(label, fm, text, icon, paintViewR, paintIconR, paintTextR);

    Graphics2D g2 = (Graphics2D) g;
    AffineTransform tr = g2.getTransform();
    if (clockwise) {
        g2.rotate(Math.PI / 2);
        g2.translate(0, -c.getWidth());
    } else {
        g2.rotate(-Math.PI / 2);
        g2.translate(-c.getHeight(), 0);
    }

    if (icon != null) {
        icon.paintIcon(c, g, paintIconR.x, paintIconR.y);
    }

    if (text != null) {
        int textX = paintTextR.x;
        int textY = paintTextR.y + fm.getAscent();

        if (label.isEnabled()) {
            paintEnabledText(label, g, clippedText, textX, textY);
        } else {
            paintDisabledText(label, g, clippedText, textX, textY);
        }
    }

    g2.setTransform(tr);
}

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From source file:TransformDemo.java

public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    Rectangle rect = new Rectangle(5, 5, 200, 200);

    int w = getSize().width;
    int h = getSize().height;

    AffineTransform saveXform = g2.getTransform();
    AffineTransform toCenterAt = new AffineTransform();
    toCenterAt.translate(w / 2 - (rect.width / 2), h / 2 - (rect.height / 2));
    g2.transform(toCenterAt);/*from w  ww .  ja  v a  2  s  .c o  m*/

    g2.fill(rect);

    g2.transform(saveXform);
}

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From source file:juicebox.track.EigenvectorTrack.java

private void drawRotatedString(Graphics2D g2, String string, float x, float y) {
    AffineTransform orig = g2.getTransform();
    g2.rotate(0);/*w w w.j a v  a  2  s  .c  o m*/
    g2.setColor(Color.BLUE);
    g2.translate(x, 0);
    g2.scale(-1, 1);
    g2.translate(-x, 0);
    g2.drawString(string, x, y);
    g2.setTransform(orig);
}

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From source file:gda.plots.BlockWrapper.java

/**
 * JFreeChart will actually call this from its drawTitle method expecting the Block to draw itself at this point.
 * Our JComponent will already have been drawn as a consequence of being a simple child of the ChartPanel (which
 * extends JPanel). However we can use the information passed to the Block here to get the JComponents bounds set
 * correctly./* www .  j ava  2s .c  o m*/
 * 
 * @param g2
 *            the Graphics2D into which to draw (not used here)
 * @param area
 *            the Rectangle2D into which the object should draw itself)
 * @param params
 *            some parameters not yet understood
 * @return an Object else null
 */
@Override
public Object draw(Graphics2D g2, Rectangle2D area, Object params) {
    logger.debug("BW area is " + area);
    logger.debug("BW params is " + params);
    logger.debug("BW g2 is " + g2);
    logger.debug("BW g2.transform is " + g2.getTransform());
    jc.setBounds((int) Math.round(area.getX()), (int) Math.round(area.getY()),
            (int) Math.round(area.getWidth()), (int) Math.round(area.getHeight()));

    return null;
}

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From source file:WorldMapGraphDemo.java

/**
 * create an instance of a simple graph with controls to
 * demo the zoom features./*ww  w  .  jav a2  s .  c om*/
 * 
 */
public WorldMapGraphDemo() {
    setLayout(new BorderLayout());

    map.put("TYO", new String[] { "35 40 N", "139 45 E" });
    map.put("PEK", new String[] { "39 55 N", "116 26 E" });
    map.put("MOW", new String[] { "55 45 N", "37 42 E" });
    map.put("JRS", new String[] { "31 47 N", "35 13 E" });
    map.put("CAI", new String[] { "30 03 N", "31 15 E" });
    map.put("CPT", new String[] { "33 55 S", "18 22 E" });
    map.put("PAR", new String[] { "48 52 N", "2 20 E" });
    map.put("LHR", new String[] { "51 30 N", "0 10 W" });
    map.put("HNL", new String[] { "21 18 N", "157 51 W" });
    map.put("NYC", new String[] { "40 77 N", "73 98 W" });
    map.put("SFO", new String[] { "37 62 N", "122 38 W" });
    map.put("AKL", new String[] { "36 55 S", "174 47 E" });
    map.put("BNE", new String[] { "27 28 S", "153 02 E" });
    map.put("HKG", new String[] { "22 15 N", "114 10 E" });
    map.put("KTM", new String[] { "27 42 N", "85 19 E" });
    map.put("IST", new String[] { "41 01 N", "28 58 E" });
    map.put("STO", new String[] { "59 20 N", "18 03 E" });
    map.put("RIO", new String[] { "22 54 S", "43 14 W" });
    map.put("LIM", new String[] { "12 03 S", "77 03 W" });
    map.put("YTO", new String[] { "43 39 N", "79 23 W" });

    cityList = new ArrayList<String>(map.keySet());

    // create a simple graph for the demo
    graph = new DirectedSparseMultigraph<String, Number>();
    createVertices();
    createEdges();

    ImageIcon mapIcon = null;
    String imageLocation = "/images/political_world_map.jpg";
    try {
        mapIcon = new ImageIcon(getClass().getResource(imageLocation));
    } catch (Exception ex) {
        System.err.println("Can't load \"" + imageLocation + "\"");
    }
    final ImageIcon icon = mapIcon;

    Dimension layoutSize = new Dimension(2000, 1000);

    Layout<String, Number> layout = new StaticLayout<String, Number>(graph,
            new ChainedTransformer(new Transformer[] { new CityTransformer(map),
                    new LatLonPixelTransformer(new Dimension(2000, 1000)) }));

    layout.setSize(layoutSize);
    vv = new VisualizationViewer<String, Number>(layout, new Dimension(800, 400));

    if (icon != null) {
        vv.addPreRenderPaintable(new VisualizationViewer.Paintable() {
            public void paint(Graphics g) {
                Graphics2D g2d = (Graphics2D) g;
                AffineTransform oldXform = g2d.getTransform();
                AffineTransform lat = vv.getRenderContext().getMultiLayerTransformer()
                        .getTransformer(Layer.LAYOUT).getTransform();
                AffineTransform vat = vv.getRenderContext().getMultiLayerTransformer()
                        .getTransformer(Layer.VIEW).getTransform();
                AffineTransform at = new AffineTransform();
                at.concatenate(g2d.getTransform());
                at.concatenate(vat);
                at.concatenate(lat);
                g2d.setTransform(at);
                g.drawImage(icon.getImage(), 0, 0, icon.getIconWidth(), icon.getIconHeight(), vv);
                g2d.setTransform(oldXform);
            }

            public boolean useTransform() {
                return false;
            }
        });
    }

    vv.getRenderer().setVertexRenderer(new GradientVertexRenderer<String, Number>(Color.white, Color.red,
            Color.white, Color.blue, vv.getPickedVertexState(), false));

    // add my listeners for ToolTips
    vv.setVertexToolTipTransformer(new ToStringLabeller());
    vv.setEdgeToolTipTransformer(new Transformer<Number, String>() {
        public String transform(Number edge) {
            return "E" + graph.getEndpoints(edge).toString();
        }
    });

    vv.getRenderContext().setVertexLabelTransformer(new ToStringLabeller());
    vv.getRenderer().getVertexLabelRenderer().setPositioner(new InsidePositioner());
    vv.getRenderer().getVertexLabelRenderer().setPosition(Renderer.VertexLabel.Position.AUTO);

    final GraphZoomScrollPane panel = new GraphZoomScrollPane(vv);
    add(panel);
    final AbstractModalGraphMouse graphMouse = new DefaultModalGraphMouse();
    vv.setGraphMouse(graphMouse);

    vv.addKeyListener(graphMouse.getModeKeyListener());
    vv.setToolTipText("<html><center>Type 'p' for Pick mode<p>Type 't' for Transform mode");

    final ScalingControl scaler = new CrossoverScalingControl();

    //        vv.scaleToLayout(scaler);

    JButton plus = new JButton("+");
    plus.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            scaler.scale(vv, 1.1f, vv.getCenter());
        }
    });
    JButton minus = new JButton("-");
    minus.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            scaler.scale(vv, 1 / 1.1f, vv.getCenter());
        }
    });

    JButton reset = new JButton("reset");
    reset.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            vv.getRenderContext().getMultiLayerTransformer().getTransformer(Layer.LAYOUT).setToIdentity();
            vv.getRenderContext().getMultiLayerTransformer().getTransformer(Layer.VIEW).setToIdentity();
        }
    });

    JPanel controls = new JPanel();
    controls.add(plus);
    controls.add(minus);
    controls.add(reset);
    add(controls, BorderLayout.SOUTH);
}

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