Examples of PathIterator

ae.java.awt.geom.PathIterator
The PathIterator interface provides the mechanism for objects that implement the {@link ae.java.awt.Shape Shape}interface to return the geometry of their boundary by allowing a caller to retrieve the path of that boundary a segment at a time. This interface allows these objects to retrieve the path of their boundary a segment at a time by using 1st through 3rd order Bézier curves, which are lines and quadratic or cubic Bézier splines.
Multiple subpaths can be expressed by using a "MOVETO" segment to create a discontinuity in the geometry to move from the end of one subpath to the beginning of the next.
Each subpath can be closed manually by ending the last segment in the subpath on the same coordinate as the beginning "MOVETO" segment for that subpath or by using a "CLOSE" segment to append a line segment from the last point back to the first. Be aware that manually closing an outline as opposed to using a "CLOSE" segment to close the path might result in different line style decorations being used at the end points of the subpath. For example, the {@link ae.java.awt.BasicStroke BasicStroke} objectuses a line "JOIN" decoration to connect the first and last points if a "CLOSE" segment is encountered, whereas simply ending the path on the same coordinate as the beginning coordinate results in line "CAP" decorations being used at the ends. @see ae.java.awt.Shape @see ae.java.awt.BasicStroke @author Jim Graham
com.google.code.appengine.awt.geom.PathIterator
com.jgraph.gaeawt.java.awt.geom.PathIterator
java.awt.geom.PathIterator
The PathIterator interface provides the mechanism for objects that implement the {@link java.awt.Shape Shape}interface to return the geometry of their boundary by allowing a caller to retrieve the path of that boundary a segment at a time. This interface allows these objects to retrieve the path of their boundary a segment at a time by using 1st through 3rd order Bézier curves, which are lines and quadratic or cubic Bézier splines.
Multiple subpaths can be expressed by using a "MOVETO" segment to create a discontinuity in the geometry to move from the end of one subpath to the beginning of the next.
Each subpath can be closed manually by ending the last segment in the subpath on the same coordinate as the beginning "MOVETO" segment for that subpath or by using a "CLOSE" segment to append a line segment from the last point back to the first. Be aware that manually closing an outline as opposed to using a "CLOSE" segment to close the path might result in different line style decorations being used at the end points of the subpath. For example, the {@link java.awt.BasicStroke BasicStroke} object uses a line "JOIN" decoration to connect the first and last points if a "CLOSE" segment is encountered, whereas simply ending the path on the same coordinate as the beginning coordinate results in line "CAP" decorations being used at the ends. @see java.awt.Shape @see java.awt.BasicStroke @version 1.17, 11/17/05 @author Jim Graham
org.codemap.util.geom.PathIterator
The PathIterator interface provides the mechanism for objects that implement the {@link java.awt.Shape Shape}interface to return the geometry of their boundary by allowing a caller to retrieve the path of that boundary a segment at a time. This interface allows these objects to retrieve the path of their boundary a segment at a time by using 1st through 3rd order Bézier curves, which are lines and quadratic or cubic Bézier splines.
Multiple subpaths can be expressed by using a "MOVETO" segment to create a discontinuity in the geometry to move from the end of one subpath to the beginning of the next.
Each subpath can be closed manually by ending the last segment in the subpath on the same coordinate as the beginning "MOVETO" segment for that subpath or by using a "CLOSE" segment to append a line segment from the last point back to the first. Be aware that manually closing an outline as opposed to using a "CLOSE" segment to close the path might result in different line style decorations being used at the end points of the subpath. For example, the {@link java.awt.BasicStroke BasicStroke} objectuses a line "JOIN" decoration to connect the first and last points if a "CLOSE" segment is encountered, whereas simply ending the path on the same coordinate as the beginning coordinate results in line "CAP" decorations being used at the ends. @see java.awt.Shape @see java.awt.BasicStroke @author Jim Graham

Examples of java.awt.geom.PathIterator


  @Override@Test
  public void testUpdateGeneralPathInside() {
    ISquaredShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();
    double width = 100;


    model.setPosition(-10, 20);
    model.setWidth(width);
    model.setThickness(thickness);
    model.setBordersPosition(BorderPos.INTO);
    view.update();
    path = view.getPath();


    pi = path.getPathIterator(null);
    assertEquals(PathIterator.SEG_MOVETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_CLOSE, pi.currentSegment(coords));


    double xMin = Double.MAX_VALUE, yMin = Double.MAX_VALUE;
    double xMax = Double.MIN_VALUE, yMax = Double.MIN_VALUE;
    int i=0, size = xs.size();
    double val;

View Full Code Here

Examples of java.awt.geom.PathIterator


  @Override@Test
  public void testUpdateGeneralPathMiddle() {
    ISquaredShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();
    double width = 100;


    model.setPosition(-10, 20);
    model.setWidth(width);
    model.setThickness(thickness);
    model.setBordersPosition(BorderPos.MID);
    view.update();
    path = view.getPath();


    pi = path.getPathIterator(null);
    assertEquals(PathIterator.SEG_MOVETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_CLOSE, pi.currentSegment(coords));


    double xMin = Double.MAX_VALUE, yMin = Double.MAX_VALUE;
    double xMax = Double.MIN_VALUE, yMax = Double.MIN_VALUE;
    int i=0, size = xs.size();
    double val;

View Full Code Here

Examples of java.awt.geom.PathIterator


  @Override@Test
  public void testUpdateGeneralPathOutside() {
    ISquaredShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();
    double width = 100;


    model.setPosition(-10, 20);
    model.setWidth(width);
    model.setThickness(thickness);
    model.setBordersPosition(BorderPos.OUT);
    view.update();
    path = view.getPath();


    pi = path.getPathIterator(null);
    assertEquals(PathIterator.SEG_MOVETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_CLOSE, pi.currentSegment(coords));


    double xMin = Double.MAX_VALUE, yMin = Double.MAX_VALUE;
    double xMax = Double.MIN_VALUE, yMax = Double.MIN_VALUE;
    int i=0, size = xs.size();
    double val;

View Full Code Here

Examples of java.awt.geom.PathIterator


  @Override@Test
  public void testUpdateDblePathInside() {
    ISquaredShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    final double dble = 1.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();
    double width = 100;


    model.setPosition(-10, 20);
    model.setWidth(width);
    model.setThickness(thickness);
    model.setDbleBordSep(dble);
    model.setBordersPosition(BorderPos.INTO);
    model.setHasDbleBord(true);
    view.update();
    path = view.getPath();


    pi = path.getPathIterator(null);
    assertEquals(PathIterator.SEG_MOVETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_CLOSE, pi.currentSegment(coords));


    double xMin = Double.MAX_VALUE, yMin = Double.MAX_VALUE;
    double xMax = Double.MIN_VALUE, yMax = Double.MIN_VALUE;
    int i=0, size = xs.size();
    double val;

View Full Code Here

Examples of java.awt.geom.PathIterator


  @Override@Test
  public void testUpdateDblePathMiddle() {
    ISquaredShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    final double dble = 1.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();
    double width = 100;


    model.setPosition(-10, 20);
    model.setWidth(width);
    model.setThickness(thickness);
    model.setDbleBordSep(dble);
    model.setBordersPosition(BorderPos.MID);
    model.setHasDbleBord(true);
    view.update();
    path = view.getPath();


    pi = path.getPathIterator(null);
    assertEquals(PathIterator.SEG_MOVETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_LINETO, pi.currentSegment(coords));
    xs.add(coords[0]);
    ys.add(coords[1]);
    pi.next();
    assertEquals(PathIterator.SEG_CLOSE, pi.currentSegment(coords));


    double xMin = Double.MAX_VALUE, yMin = Double.MAX_VALUE;
    double xMax = Double.MIN_VALUE, yMax = Double.MIN_VALUE;
    int i=0, size = xs.size();
    double val;

View Full Code Here

Examples of java.awt.geom.PathIterator




  @SuppressWarnings("nls")
  @Override
  public void parse() throws ParseException {
    final PathIterator pi     = shape.getPathIterator(null);
    final double[] coords       = new double[6];
    final SVGPathSegList list   = new SVGPathSegList();
    element           = new SVGPathElement(document);


    while(!pi.isDone()) {
      switch(pi.currentSegment(coords)) {
        case PathIterator.SEG_CLOSE  : list.add(new SVGPathSegClosePath()); break;
        case PathIterator.SEG_LINETO: list.add(new SVGPathSegLineto(coords[0], coords[1], false)); break;
        case PathIterator.SEG_MOVETO: list.add(new SVGPathSegMoveto(coords[0], coords[1], false)); break;
        case PathIterator.SEG_CUBICTO: list.add(new SVGPathSegCurvetoCubic(coords[4], coords[5], coords[0], coords[1], coords[2], coords[3], false)); break;
        case PathIterator.SEG_QUADTO: list.add(new SVGPathSegCurvetoQuadratic(coords[2], coords[3], coords[0], coords[1], false)); break;
        default: throw new ParseException("Invalid Path2D element:" + pi.currentSegment(coords), -1);
      }
      pi.next();
    }


    element.setAttribute(SVGAttributes.SVG_D, list.toString());
    list.clear(); // Freeing the memory.
  }

View Full Code Here

Examples of java.awt.geom.PathIterator

                stream.writeDouble(arc.getAngleExtent());
                stream.writeInt(arc.getArcType());
            }
            else if (shape instanceof GeneralPath) {
                stream.writeObject(GeneralPath.class);
                final PathIterator pi = shape.getPathIterator(null);
                final float[] args = new float[6];
                stream.writeBoolean(pi.isDone());
                while (!pi.isDone()) {
                    final int type = pi.currentSegment(args);
                    stream.writeInt(type);
                    // TODO: could write this to only stream the values
                    // required for the segment type
                    for (int i = 0; i < 6; i++) {
                        stream.writeFloat(args[i]);
                    }
                    stream.writeInt(pi.getWindingRule());
                    pi.next();
                    stream.writeBoolean(pi.isDone());
                }
            }
            else {
                stream.writeObject(shape.getClass());
                stream.writeObject(shape);

View Full Code Here

Examples of java.awt.geom.PathIterator

     *
     * @param a An Area.
     */
    public ROIShape(Area a) {
        AffineTransform at = new AffineTransform(); // Identity
        PathIterator pi = a.getPathIterator(at);
        GeneralPath gp = new GeneralPath(pi.getWindingRule());
        gp.append(pi, false);


        theShape = gp;
    }

View Full Code Here

Examples of java.awt.geom.PathIterator

            if (!clip.getBounds().contains(bounds)) {
                return;
            }
        }


        PathIterator it = shape.getPathIterator(transform);
        double[] prev = null;
        double[] coords = new double[6];
        double[] first = new double[6];
        if(!it.isDone()) it.currentSegment(first); //first point
        while(!it.isDone()){
            int type = it.currentSegment(coords);
            if (prev != null ){
                Line line = new Line(group);
                if (stroke instanceof BasicStroke){
                    BasicStroke bs = (BasicStroke)stroke;
                    line.setLineWidth(bs.getLineWidth());
                    float[] dash = bs.getDashArray();
                    if (dash != null) line.setLineDashing(Line.PEN_DASH);
                }
                if(getColor() != null) line.setLineColor(getColor());
                if (type == PathIterator.SEG_LINETO) {
                    line.setAnchor(new java.awt.Rectangle((int)prev[0],  (int)prev[1], (int)(coords[0] - prev[0]), (int)(coords[1] - prev[1])));
                } else if (type == PathIterator.SEG_CLOSE){
                    line.setAnchor(new java.awt.Rectangle((int)coords[0],  (int)coords[1], (int)(first[0] - coords[0]), (int)(first[1] - coords[1])));
                }
                group.addShape(line);
            }
            prev = new double[]{coords[0],  coords[1]};
            it.next();
        }


    }

View Full Code Here

Examples of java.awt.geom.PathIterator

            if (bounds.height == 0) bounds.height = 1;
             if (!clip.getBounds().contains(bounds)) {
                return;
            }
        }
        PathIterator it = shape.getPathIterator(transform);
        ArrayList pnt = new ArrayList();
        double[] coords = new double[6];
        while(!it.isDone()){
            int type = it.currentSegment(coords);
            if (type != PathIterator.SEG_CLOSE) {
                pnt.add(new Point((int)coords[0], (int)coords[1]));
            }
            it.next();
        }
        int[] xPoints= new int[pnt.size()];
        int[] yPoints= new int[pnt.size()];
        for (int i = 0; i < pnt.size(); i++) {
            Point p = (Point)pnt.get(i);

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.