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

     * the points. The flattening is used for a
     * FlatteningPathIterator, controlling the scope of the path
     * traversal.
     */
    public static void describeShapeDetail(Shape shape, double flattening) {
        PathIterator pi2 = shape.getPathIterator(null);
        FlatteningPathIterator pi = new FlatteningPathIterator(pi2, flattening);
        double[] coords = new double[6];
        int pointCount = 0;


        Debug.output(" -- start describeShapeDetail with flattening["

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Examples of java.awt.geom.PathIterator


        if (toShape == null) {
            return addShape;
        }


        PathIterator pi2 = addShape.getPathIterator(null);
        FlatteningPathIterator pi = new FlatteningPathIterator(pi2, .25);
        double[] coords = new double[6];


        while (!pi.isDone()) {
            int type = pi.currentSegment(coords);

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Examples of java.awt.geom.PathIterator

                        woffset = rw;
                    }


                    AffineTransform at = new AffineTransform();
                    at.rotate(rotationAngle, rx + woffset, pt.y);
                    PathIterator pi = shape.getPathIterator(at);
                    GeneralPath gp = new GeneralPath();
                    gp.append(pi, false);
                    shape = gp;
                }
            }

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Examples of java.awt.geom.PathIterator


                Shape shape = graphic.getShape();
                if (shape == null)
                    continue;


                PathIterator path = shape.getPathIterator(new AffineTransform());
                int segment = 0;
                int itemsInPath = 0;
                boolean pathValid = true;


                for (; !path.isDone() && pathValid; path.next()) {
                    int type = path.currentSegment(points);
                    itemsInPath++;
                    boolean offScreen = false;
                    if (points[0] < 0 || points[0] >= width) {
                        // logger.warning("skipping x point " +
                        // points[0] + " b/c it's off the map.");

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Examples of java.awt.geom.PathIterator

  //
  //
  
  
  private void followPath(Shape s, int drawType) {
    PathIterator points;
    
      if (s==null) return;
      
      if (drawType==STROKE) {
          if (!(stroke instanceof BasicStroke)) {
              s = stroke.createStrokedShape(s);
              followPath(s, FILL);
              return;
          }
      }
//      if (drawType==STROKE) {
//          setStrokeDiff(stroke, oldStroke);
//          oldStroke = stroke;
//          setStrokePaint();
//      }
//      else if (drawType==FILL)
//          setFillPaint();
      points = s.getPathIterator(IDENTITY);
      int segments = 0;
      float[] coords = new float[6];
      while(!points.isDone()) {
          segments++;
          int segtype = points.currentSegment(coords);
          switch(segtype) {
              case PathIterator.SEG_CLOSE:
                pw.print("h ");
                  break;


              case PathIterator.SEG_CUBICTO:
                  curveto(coords[0], coords[1], coords[2], coords[3], coords[4], coords[5]);
                  break;


              case PathIterator.SEG_LINETO:
                  lineto(coords[0], coords[1]);
                  break;


              case PathIterator.SEG_MOVETO:
                  moveto(coords[0], coords[1]);
                  break;


              case PathIterator.SEG_QUADTO:
                  curveto(coords[0], coords[1], coords[2], coords[3]);
                  break;
          }
          points.next();
      }
      
      switch (drawType) {
      case FILL:
          if (segments > 0) {
              if (points.getWindingRule() == PathIterator.WIND_EVEN_ODD)
                closeBlock("B*");
              else
                closeBlock("B");
          }
          break;
      case STROKE:
          if (segments > 0)
              closeBlock("S");
          break;
      case CLIP:
      default: //drawType==CLIP
          if (segments == 0)
              drawRect(0, 0, 0, 0);
          if (points.getWindingRule() == PathIterator.WIND_EVEN_ODD)
            closeBlock("W*");
          else
            closeBlock("W");
      }
  }

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Examples of java.awt.geom.PathIterator

    // converts circles into polygons
    public static OMPoly convert(OMCircle omCircle, Projection proj) {
        GeneralPath shape = omCircle.getShape();


        // get the PathIterator that defines the outline of the circle
        PathIterator circle = shape.getPathIterator(null);
        Vector initialPoints = new Vector();
        float[] segPoints = new float[2];


        while (!circle.isDone()) {
            // by passing segpoints the array is filled with each x\y
            // point iterated by the circle
//            int segType = circle.currentSegment(segPoints);
            initialPoints.add(new Float(segPoints[0]));
            initialPoints.add(new Float(segPoints[1]));
            circle.next();
        }


        float[] circlePoints = new float[initialPoints.size()];


        if (proj == null) {

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Examples of java.awt.geom.PathIterator

        int refreshCounter = bufferSize;
        int[] stripCount = new int[1];
        stripCount[0] = 0;


        // null is AffineTransform...
        PathIterator pi2 = shape.getPathIterator(null);


        // flatness might need to be calculated, based
        // on scale or something. Depends on how many
        // points there should be for an accurate
        // shape rendition.

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Examples of java.awt.geom.PathIterator

        maxy=my;
        scalex=sx;
        scaley=sy;


        if (drawBars){
            PathIterator p=getPathIterator(null);
            double[] v=new double[2];
            double currentValue=Double.NEGATIVE_INFINITY;
            
            if (p instanceof CurveIterator){
                CurveIterator cu = (CurveIterator)p;


                while(!cu.isDone()){
                    cu.currentSegment(v);
                    if (cu.currentSegmentIsValid){
                        int xpos = (int)Math.round(v[0]);
                        g2.drawLine(xpos, 0, xpos, -height);


                        // display a label on the bar
                        double value = cu.currentYSourceValue;
                        if (value!=currentValue){
                            currentValue=value;
                            String ySourceValue =  new Double(currentValue).toString();
                            LabelShape label = new LabelShape(ySourceValue,xpos, -height,  LabelShape.RIGHTUP, true);
                            label.draw(g2);
                        }
                    }
                    cu.next();
                }
            }


        }else{
            g2.draw(this);  
            if(showPoints){
                Color oldColor = g2.getColor();
                float[] hsbs = new float[3];
                Color.RGBtoHSB(oldColor.getRed(), oldColor.getGreen(), oldColor.getBlue(), hsbs);
                float bb=(float)((hsbs[2]+0.5)%1.0);
                Color newColor = Color.getHSBColor(hsbs[0], hsbs[1], bb);
                g2.setColor(newColor);


                Stroke oldStroke = g2.getStroke();
                g2.setStroke(new BasicStroke());


                PathIterator p=getPathIterator(null);
                if (p instanceof CurveIterator){
                    CurveIterator cu = (CurveIterator)p;
                    double[] v=new double[2];
                    while(!cu.isDone()){
                        cu.currentSegment(v);

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Examples of java.awt.geom.PathIterator

    return new Rectangle2D.Double(x, y, height, width);
  }
  
  /** Returns the object's PathIterator. */
  public PathIterator getPathIterator(AffineTransform at) {
    return new PathIterator() {
      int state = 0;
      int maxstate = 4;
      float[][] fcurrentSegment = { {(float)(x + width/2), (float)y, 0f, 0f, 0f, 0f},
                      {(float)x, (float)(y + height/2), 0f, 0f, 0f, 0f},
                      {(float)(x + width/2), (float)(y + height), 0f, 0f, 0f, 0f},

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Examples of java.awt.geom.PathIterator

    public double getHeight() {
        return height;
    }
    
    public PathIterator getPathIterator(AffineTransform affineTransform) {
        return new PathIterator() {
      int state = 0;
      int maxstate = 3;
            
      double[][] dcurrentSegment = {{x + width/2, y},
                      {x, y + height},

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