Examples of ij.gui.ShapeRoi

ij.gui.ShapeRoi
A subclass of ij.gui.Roi (2D Regions Of Interest) implemented in terms of java.awt.Shape. A ShapeRoi is constructed from a ij.gui.Roi object, or as a result of logical operators (i.e., union, intersection, exclusive or, and subtraction) provided by this class. These operators use the package java.awt.geom as a backend.
This code is in the public domain. @author Cezar M.Tigaret

    //IJ.showStatus("Creating GeneralPath");
    GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
    for (int i = 0; i < polygons.size(); i++)
      path.append((Polygon)polygons.get(i), false);


    ShapeRoi shape = new ShapeRoi(path);
    Roi roi = shape!=null?shape.shapeToRoi():null; // try to convert to non-composite ROI
    IJ.showProgress(1,1);
    if (roi!=null)
      return roi;
    else
      return shape;

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  /** Fills outside an Roi. */
  public void fillOutside(Roi roi) {
    if (roi==null || !roi.isArea()) return;
    ImageProcessor m = getMask();
    Rectangle r = getRoi();
    ShapeRoi s1, s2;
    if (roi instanceof ShapeRoi)
      s1 = (ShapeRoi)roi;
    else
      s1 = new ShapeRoi(roi);
    s2 = new ShapeRoi(new Roi(0,0, width, height));
    setRoi(s1.xor(s2));
    fill(getMask());
    setMask(m);
    setRoi(r);
  }

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    //IJ.showStatus("Creating GeneralPath");
    GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
    for (int i = 0; i < polygons.size(); i++)
      path.append((Polygon)polygons.get(i), false);


    ShapeRoi shape = new ShapeRoi(path);
    Roi roi = shape!=null?shape.shapeToRoi():null; // try to convert to non-composite ROI
    IJ.showProgress(1,1);
    if (roi!=null)
      return roi;
    else
      return shape;

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Related Classes of ij.gui.ShapeRoi

ij.plugin.filter.ThresholdToSelection

ij.process.ImageProcessor

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