Examples of 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


  @Override@Test
  public void testUpdateDblePathInside() {
    IRectangularShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    final double height = 10.;
    final double dble = 1.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();


    model.setPosition(-10, 20);
    model.setWidth(100);
    model.setThickness(thickness);
    model.setDbleBordSep(dble);
    model.setHeight(height);
    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


  @Override@Test
  public void testUpdateDblePathMiddle() {
    IRectangularShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    final double height = 10.;
    final double dble = 1.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();


    model.setPosition(-10, 20);
    model.setWidth(100);
    model.setThickness(thickness);
    model.setDbleBordSep(dble);
    model.setHeight(height);
    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


  @Override@Test
  public void testUpdateDblePathOutside() {
    IRectangularShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    final double height = 10.;
    final double dble = 1.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();


    model.setPosition(-10, 20);
    model.setWidth(100);
    model.setThickness(thickness);
    model.setDbleBordSep(dble);
    model.setHeight(height);
    model.setBordersPosition(BorderPos.OUT);
    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


  @Override@Test
  public void testUpdateGeneralPathInside() {
    IRectangularShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    final double height = 5.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();


    model.setPosition(-10, 20);
    model.setWidth(100);
    model.setThickness(thickness);
    model.setHeight(height);
    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


  @Override@Test
  public void testUpdateGeneralPathMiddle() {
    IRectangularShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    final double height = 5.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();


    model.setPosition(-10, 20);
    model.setWidth(100);
    model.setThickness(thickness);
    model.setHeight(height);
    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


  @Override@Test
  public void testUpdateGeneralPathOutside() {
    IRectangularShape model = getShape();
    Path2D path;
    PathIterator pi;
    double[] coords = new double[6];
    final double thickness = 3.;
    final double height = 5.;
    List<Double> xs = new ArrayList<>();
    List<Double> ys = new ArrayList<>();


    model.setPosition(-10, 20);
    model.setWidth(100);
    model.setThickness(thickness);
    model.setHeight(height);
    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


  @Override@Test
  public void testUpdateDblePathOutside() {
    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.OUT);
    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


  @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


  @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


  @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

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