Package d3delaunayforprocessing

Class Voronoi

java.lang.Object
d3delaunayforprocessing.Voronoi
public class Voronoi
extends java.lang.Object
d3-delaunay-for-processing To port the d3-delaunay library to Java using the delaunator-java library by waveware4ai This is the Voronoi class
Since:
2022-12-22

  • Field Summary

    Fields 
    Modifier and Type Field Description
    double[] circumcenters
    The circumcenters of the Delaunay triangles as a double array [ cx0, cy0, cx1, cy1, ...
    Delaunay delaunay
    Reference Reference back to the corresponding delaunay instant.
    double[] vectors
    A double array [ vx0, vy0, wx0, wy0, ...
    double xmax  
    double xmin  
    double ymax  
    double ymin  

  • Constructor Summary

    Constructors 
    Constructor Description
    Voronoi​(Delaunay delaunay, double[] bounds)
    Voronoi class constructor.
    Voronoi​(Delaunay delaunay, float[] bounds)
    Voronoi class constructor, but with float.

  • Method Summary

    Modifier and Type Method Description
    double[] _cell​(int i)  
    double[] _clip​(int i)  
    double[] _clipFinite​(int i, double[] points)  
    double[] _clipInfinite​(int i, double[] points, double vx0, double vy0, double vxn, double vyn)  
    double[] _clipSegment​(double x0, double y0, double x1, double y1, int c0, int c1)  
    int _edge​(int i, int e0, int e1, java.util.List<java.lang.Double> P, int j)  
    int _edgecode​(double x, double y)  
    void _init()  
    double[] _project​(double x0, double y0, double vx, double vy)  
    int _regioncode​(double x, double y)  
    double[][] cellPolygon​(int i)
    Returns the convex, closed polygon [ [ x0, y0 ], [ x1, y1 ], ..., [ x0, y0 ] ] representing the cell for the specified point i.
    float[][] cellPolygonFloat​(int i)
    Returns the convex, closed polygon [ [ x0, y0 ], [ x1, y1 ], ..., [ x0, y0 ] ] representing the cell for the specified point i.
    boolean contains​(int i, double x, double y)
    Returns true if the cell with the specified index i contains the specified point (x, y).
    boolean contains​(int i, float x, float y)
    Returns true if the cell with the specified index i contains the specified point (x, y).
    int[] neighbors​(int i)
    Returns an int array of the indexes of the cells that share a common edge with the specified cell i.
    void renderCell​(int i, Polygon context)  

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • delaunay

      public Delaunay delaunay
      Reference Reference back to the corresponding delaunay instant.

    • circumcenters

      public double[] circumcenters
      The circumcenters of the Delaunay triangles as a double array [ cx0, cy0, cx1, cy1, ... ]

    • vectors

      public double[] vectors
      A double array [ vx0, vy0, wx0, wy0, ... ] where each non-zero quadruple describes an open (infinite) cell on the outer hull, giving the directions of two open half-lines.

    • xmin

      public double xmin

    • xmax

      public double xmax

    • ymin

      public double ymin

    • ymax

      public double ymax

  • Constructor Details

    • Voronoi

      public Voronoi​(Delaunay delaunay, double[] bounds)
      Voronoi class constructor.
      Parameters:
      delaunay - A Delaunay object
      bounds - the boundary for the Voronoi graph, [xmin, ymin, xmax, ymax]
      See Also:
      Delaunay

    • Voronoi

      public Voronoi​(Delaunay delaunay, float[] bounds)
      Voronoi class constructor, but with float.
      Parameters:
      delaunay - A Delaunay object
      bounds - the boundary for the Voronoi graph, [xmin, ymin, xmax, ymax]
      See Also:
      Delaunay

  • Method Details

    • _init

      public void _init()

    • renderCell

      public void renderCell​(int i, Polygon context)

    • cellPolygon

      public double[][] cellPolygon​(int i)
      Returns the convex, closed polygon [ [ x0, y0 ], [ x1, y1 ], ..., [ x0, y0 ] ] representing the cell for the specified point i.
      Parameters:
      i - the index of the cell
      Returns:
      the points in an array [[x0, y0],[x1, y1], ...]

    • cellPolygonFloat

      public float[][] cellPolygonFloat​(int i)
      Returns the convex, closed polygon [ [ x0, y0 ], [ x1, y1 ], ..., [ x0, y0 ] ] representing the cell for the specified point i. Return in float.
      Parameters:
      i - the index of the cell
      Returns:
      the points in an array [[x0, y0],[x1, y1], ...]

    • contains

      public boolean contains​(int i, double x, double y)
      Returns true if the cell with the specified index i contains the specified point (x, y).
      Parameters:
      i - the index of the cell
      x - x coordinate value of the point
      y - y coordinate value of the point
      Returns:
      true or false

    • contains

      public boolean contains​(int i, float x, float y)
      Returns true if the cell with the specified index i contains the specified point (x, y).
      Parameters:
      i - the index of the cell
      x - x coordinate value of the point
      y - y coordinate value of the point
      Returns:
      true or false

    • neighbors

      public int[] neighbors​(int i)
      Returns an int array of the indexes of the cells that share a common edge with the specified cell i.
      Parameters:
      i - the index of the cell
      Returns:
      an int array of the indexes of the cell's neighbors

    • _cell

      public double[] _cell​(int i)

    • _clip

      public double[] _clip​(int i)

    • _clipFinite

      public double[] _clipFinite​(int i, double[] points)

    • _clipSegment

      public double[] _clipSegment​(double x0, double y0, double x1, double y1, int c0, int c1)

    • _clipInfinite

      public double[] _clipInfinite​(int i, double[] points, double vx0, double vy0, double vxn, double vyn)

    • _edge

      public int _edge​(int i, int e0, int e1, java.util.List<java.lang.Double> P, int j)

    • _project

      public double[] _project​(double x0, double y0, double vx, double vy)

    • _edgecode

      public int _edgecode​(double x, double y)

    • _regioncode

      public int _regioncode​(double x, double y)