Class Triangle

java.lang.Object
com.vividsolutions.jump.warp.Triangle
public class Triangle extends Object
A triangle, with special methods for use with BilinearInterpolatedTransform.
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    Triangle(org.locationtech.jts.geom.Coordinate p1, org.locationtech.jts.geom.Coordinate p2, org.locationtech.jts.geom.Coordinate p3)
    Creates a Triangle.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    contains(org.locationtech.jts.geom.Coordinate p)
    Returns whether this Triangle contains the given coordinate
    boolean
    equals(Object o)
    Returns whether this Triangle has the same vertices as the given Triangle
    double
    getArea()
    Returns the area of the triangle.
    org.locationtech.jts.geom.Envelope
    getEnvelope()
    Returns the bounds of this Triangle.
    double
    getMaxSideLength()
    Returns the length of this Triangle's longest side.
    double
    getMinHeight()
    Returns the smallest of this Triangle's three heights (as measured perpendicularly from each side).
    org.locationtech.jts.geom.Coordinate
    getP1()
    Returns the first vertex.
    org.locationtech.jts.geom.Coordinate
    getP2()
    Returns the second vertex.
    org.locationtech.jts.geom.Coordinate
    getP3()
    Returns the third vertex.
    int
    hashCode()
     
    boolean
    hasVertex(org.locationtech.jts.geom.Coordinate v)
    Returns whether v is one of this Triangle's vertices.
    protected org.locationtech.jts.geom.Coordinate
    min(org.locationtech.jts.geom.Coordinate a, org.locationtech.jts.geom.Coordinate b)
     
    List
    subTriangles(org.locationtech.jts.geom.Coordinate newVertex)
    Returns the three triangles that result from splitting this triangle at a given point.
    org.locationtech.jts.geom.Coordinate
    toEuclideanCoordinate(org.locationtech.jts.geom.Coordinate simplicialCoordinate)
    Converts from a simplicial coordinate to a Euclidean coordinate.
    org.locationtech.jts.geom.LinearRing
    toLinearRing()
    Converts this Triangle to a JTS Geometry.
    org.locationtech.jts.geom.Coordinate
    toSimplicialCoordinate(org.locationtech.jts.geom.Coordinate euclideanCoordinate)
    Converts from a Euclidean coordinate to a simplicial coordinate.
    String
    toString()
     

    Methods inherited from class Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • Triangle

      public Triangle(org.locationtech.jts.geom.Coordinate p1, org.locationtech.jts.geom.Coordinate p2, org.locationtech.jts.geom.Coordinate p3)
      Creates a Triangle.
      Parameters:
      p1 - one vertex
      p2 - another vertex
      p3 - another vertex

  • Method Details

    • getP1

      public org.locationtech.jts.geom.Coordinate getP1()
      Returns the first vertex.
      Returns:
      the first vertex

    • getP2

      public org.locationtech.jts.geom.Coordinate getP2()
      Returns the second vertex.
      Returns:
      the second vertex

    • getP3

      public org.locationtech.jts.geom.Coordinate getP3()
      Returns the third vertex.
      Returns:
      the third vertex

    • getMinHeight

      public double getMinHeight()
      Returns the smallest of this Triangle's three heights (as measured perpendicularly from each side).
      Returns:
      the smallest of this Triangle's three altitudes

    • getArea

      public double getArea()
      Returns the area of the triangle. See http://www.mathcs.emory.edu/~rudolf/math108/summ1-2-3/node7.html
      Returns:
      the area of the triangle

    • getMaxSideLength

      public double getMaxSideLength()
      Returns the length of this Triangle's longest side.
      Returns:
      the length of this Triangle's longest side

    • toLinearRing

      public org.locationtech.jts.geom.LinearRing toLinearRing()
      Converts this Triangle to a JTS Geometry.
      Returns:
      a LinearRing with the same vertices as this Triangle

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • contains

      public boolean contains(org.locationtech.jts.geom.Coordinate p)
      Returns whether this Triangle contains the given coordinate
      Parameters:
      p - the point to test for containment
      Returns:
      whether this Triangle contains the given coordinate

    • equals

      public boolean equals(Object o)
      Returns whether this Triangle has the same vertices as the given Triangle
      Overrides:
      equals in class Object
      Parameters:
      o - another Triangle; otherwise, equals will return false
      Returns:
      true if o is a Triangle and has the same vertices (though not necessarily in the same order)

    • hasVertex

      public boolean hasVertex(org.locationtech.jts.geom.Coordinate v)
      Returns whether v is one of this Triangle's vertices.
      Parameters:
      v - the candidate point
      Returns:
      whether v is equal to one of the vertices of this Triangle

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • subTriangles

      public List subTriangles(org.locationtech.jts.geom.Coordinate newVertex)
      Returns the three triangles that result from splitting this triangle at a given point.
      Parameters:
      newVertex - the split point, which must be inside triangle
      Returns:
      three Triangles resulting from splitting this triangle at the given Coordinate

    • min

      protected org.locationtech.jts.geom.Coordinate min(org.locationtech.jts.geom.Coordinate a, org.locationtech.jts.geom.Coordinate b)

    • toSimplicialCoordinate

      public org.locationtech.jts.geom.Coordinate toSimplicialCoordinate(org.locationtech.jts.geom.Coordinate euclideanCoordinate)
      Converts from a Euclidean coordinate to a simplicial coordinate.
      Parameters:
      euclideanCoordinate - the Euclidean coordinate
      Returns:
      a new 3D Coordinate with the corresponding simplicial values

    • toEuclideanCoordinate

      public org.locationtech.jts.geom.Coordinate toEuclideanCoordinate(org.locationtech.jts.geom.Coordinate simplicialCoordinate)
      Converts from a simplicial coordinate to a Euclidean coordinate.
      Parameters:
      simplicialCoordinate - the simplicial coordinate, which uses x, y, and z
      Returns:
      a new Coordinate with the corresponding Euclidean values

    • getEnvelope

      public org.locationtech.jts.geom.Envelope getEnvelope()
      Returns the bounds of this Triangle.
      Returns:
      the smallest Envelope enclosing this Triangle