Package ij.process

Class FloatPolygon

java.lang.Object
ij.process.FloatPolygon

public class FloatPolygon extends Object
Used by the Roi classes to return float coordinate arrays and to determine if a point is inside or outside of spline fitted selections.
  • Field Details

    • npoints

      public int npoints
      The number of points.
    • xpoints

      public float[] xpoints
    • ypoints

      public float[] ypoints
  • Constructor Details

    • FloatPolygon

      public FloatPolygon()
      Constructs an empty FloatPolygon.
    • FloatPolygon

      public FloatPolygon(float[] xpoints, float[] ypoints)
      Constructs a FloatPolygon from x and y arrays.
    • FloatPolygon

      public FloatPolygon(float[] xpoints, float[] ypoints, int npoints)
      Constructs a FloatPolygon from x and y arrays.
  • Method Details

    • contains

      public boolean contains(float x, float y)
      Returns 'true' if the point (x,y) is inside this polygon. This is a Java version of the remarkably small C program by W. Randolph Franklin at http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html#The%20C%20Code
    • getBounds

      public Rectangle getBounds()
    • getFloatBounds

      public Rectangle2D.Double getFloatBounds()
    • addPoint

      public void addPoint(float x, float y)
    • addPoint

      public void addPoint(double x, double y)
    • duplicate

      public FloatPolygon duplicate()
    • getLength

      public double getLength(boolean isLine)