Package com.kheops.jmap.client.graphics2D

Class PolygonRenderer

java.lang.Object
com.kheops.jmap.client.graphics2D.PolygonRenderer
All Implemented Interfaces:
Shape
public class PolygonRenderer extends Object implements Shape
A class used to render polygons as an AWT shape.

  • Constructor Summary

    Constructors
    Constructor
    Description
    PolygonRenderer(K2DTransform transform)
    Creates a new polygon renderer using the specified transformation matrix.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    contains(double x, double y)
    Tests if the specified coordinates are inside the boundary of the Shape.
    boolean
    contains(double x, double y, double w, double h)
    Tests if the interior of the Shape entirely contains the specified rectangular area.
    boolean
    contains(Point2D p)
    Tests if a specified Point2D is inside the boundary of the Shape.
    boolean
    contains(Rectangle2D r)
    Tests if the interior of the Shape entirely contains the specified Rectangle2D.
    Rectangle
    getBounds()
    Returns an integer Rectangle that completely encloses the Shape.
    Rectangle2D
    getBounds2D()
    Returns a high precision and more accurate bounding box of the Shape than the getBounds method.
    PathIterator
    getPathIterator(AffineTransform at)
    Returns an iterator object that iterates along the Shape boundary and provides access to the geometry of the Shape outline.
    PathIterator
    getPathIterator(AffineTransform at, double flatness)
    Returns an iterator object that iterates along the Shape boundary and provides access to a flattened view of the Shape outline geometry.
    boolean
    intersects(double x, double y, double w, double h)
    Tests if the interior of the Shape intersects the interior of a specified rectangular area.
    boolean
    intersects(Rectangle2D r)
    Tests if the interior of the Shape intersects the interior of a specified Rectangle2D.
    void
    setPolygon(Polygon polygon)
    Sets the polygon to be rendered.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • PolygonRenderer

      public PolygonRenderer(K2DTransform transform)
      Creates a new polygon renderer using the specified transformation matrix.
      Parameters:
      transform - the transformation matrix to use.

  • Method Details

    • setPolygon

      public void setPolygon(Polygon polygon)
      Sets the polygon to be rendered.
      Parameters:
      polygon - the polygon to be rendered.

    • contains

      public boolean contains(double x, double y)
      Tests if the specified coordinates are inside the boundary of the Shape.
      Specified by:
      contains in interface Shape
      Parameters:
      x - the specified x coordinate
      y - the specified y coordinate
      Returns:
      true if the specified coordinates are inside the Shape boundary; false otherwise.

    • contains

      public boolean contains(double x, double y, double w, double h)
      Tests if the interior of the Shape entirely contains the specified rectangular area. All coordinates that lie inside the rectangular area must lie within the Shape for the entire rectanglar area to be considered contained within the Shape.

      This method might conservatively return false when:

      • the intersect method returns true and
      • the calculations to determine whether the Shape entirely contains the rectangular area are prohibitively expensive.
      This means that this method might return false even though the Shape contains the rectangular area. The Area class can be used to perform more accurate computations of geometric intersection for any Shape object if a more precise answer is required.
      Specified by:
      contains in interface Shape
      Parameters:
      x - the x coordinate of the specified rectangular area
      y - the y coordinate of the specified rectangular area
      w - the width of the specified rectangular area
      h - the height of the specified rectangular area
      Returns:
      true if the interior of the Shape entirely contains the specified rectangular area; false otherwise or, if the Shape contains the rectangular area and the intersects method returns true and the containment calculations would be too expensive to perform.
      See Also:

    • intersects

      public boolean intersects(double x, double y, double w, double h)
      Tests if the interior of the Shape intersects the interior of a specified rectangular area. The rectangular area is considered to intersect the Shape if any point is contained in both the interior of the Shape and the specified rectangular area.

      This method might conservatively return true when:

      • there is a high probability that the rectangular area and the Shape intersect, but
      • the calculations to accurately determine this intersection are prohibitively expensive.
      This means that this method might return true even though the rectangular area does not intersect the Shape. The Area class can be used to perform more accurate computations of geometric intersection for any Shape object if a more precise answer is required.
      Specified by:
      intersects in interface Shape
      Parameters:
      x - the x coordinate of the specified rectangular area
      y - the y coordinate of the specified rectangular area
      w - the width of the specified rectangular area
      h - the height of the specified rectangular area
      Returns:
      true if the interior of the Shape and the interior of the rectangular area intersect, or are both highly likely to intersect and intersection calculations would be too expensive to perform; false otherwise.
      See Also:

    • getBounds

      public Rectangle getBounds()
      Returns an integer Rectangle that completely encloses the Shape. Note that there is no guarantee that the returned Rectangle is the smallest bounding box that encloses the Shape, only that the Shape lies entirely within the indicated Rectangle. The returned Rectangle might also fail to completely enclose the Shape if the Shape overflows the limited range of the integer data type. The getBounds2D method generally returns a tighter bounding box due to its greater flexibility in representation.
      Specified by:
      getBounds in interface Shape
      Returns:
      an integer Rectangle that completely encloses the Shape.
      See Also:

    • contains

      public boolean contains(Point2D p)
      Tests if a specified Point2D is inside the boundary of the Shape.
      Specified by:
      contains in interface Shape
      Parameters:
      p - a specified Point2D
      Returns:
      true if the specified Point2D is inside the boundary of the Shape; false otherwise.

    • getBounds2D

      public Rectangle2D getBounds2D()
      Returns a high precision and more accurate bounding box of the Shape than the getBounds method. Note that there is no guarantee that the returned Rectangle2D is the smallest bounding box that encloses the Shape, only that the Shape lies entirely within the indicated Rectangle2D. The bounding box returned by this method is usually tighter than that returned by the getBounds method and never fails due to overflow problems since the return value can be an instance of the Rectangle2D that uses double precision values to store the dimensions.
      Specified by:
      getBounds2D in interface Shape
      Returns:
      an instance of Rectangle2D that is a high-precision bounding box of the Shape.
      See Also:

    • contains

      public boolean contains(Rectangle2D r)
      Tests if the interior of the Shape entirely contains the specified Rectangle2D. This method might conservatively return false when:
      • the intersect method returns true and
      • the calculations to determine whether the Shape entirely contains the Rectangle2D are prohibitively expensive.
      This means that this method might return false even though the Shape contains the Rectangle2D. The Area class can be used to perform more accurate computations of geometric intersection for any Shape object if a more precise answer is required.
      Specified by:
      contains in interface Shape
      Parameters:
      r - The specified Rectangle2D
      Returns:
      true if the interior of the Shape entirely contains the Rectangle2D; false otherwise or, if the Shape contains the Rectangle2D and the intersects method returns true and the containment calculations would be too expensive to perform.
      See Also:

    • intersects

      public boolean intersects(Rectangle2D r)
      Tests if the interior of the Shape intersects the interior of a specified Rectangle2D. This method might conservatively return true when:
      • there is a high probability that the Rectangle2D and the Shape intersect, but
      • the calculations to accurately determine this intersection are prohibitively expensive.
      This means that this method might return true even though the Rectangle2D does not intersect the Shape.
      Specified by:
      intersects in interface Shape
      Parameters:
      r - the specified Rectangle2D
      Returns:
      true if the interior of the Shape and the interior of the specified Rectangle2D intersect, or are both highly likely to intersect and intersection calculations would be too expensive to perform; false otherwise.
      See Also:

    • getPathIterator

      public PathIterator getPathIterator(AffineTransform at)
      Returns an iterator object that iterates along the Shape boundary and provides access to the geometry of the Shape outline. If an optional AffineTransform is specified, the coordinates returned in the iteration are transformed accordingly.

      Each call to this method returns a fresh PathIterator object that traverses the geometry of the Shape object independently from any other PathIterator objects in use at the same time.

      Specified by:
      getPathIterator in interface Shape
      Parameters:
      at - an optional AffineTransform to be applied to the coordinates as they are returned in the iteration, or null if untransformed coordinates are desired
      Returns:
      a new PathIterator object, which independently traverses the geometry of the Shape.

    • getPathIterator

      public PathIterator getPathIterator(AffineTransform at, double flatness)
      Returns an iterator object that iterates along the Shape boundary and provides access to a flattened view of the Shape outline geometry.

      Only SEG_MOVETO, SEG_LINETO, and SEG_CLOSE point types are returned by the iterator.

      If an optional AffineTransform is specified, the coordinates returned in the iteration are transformed accordingly.

      Each call to this method returns a fresh PathIterator object that traverses the Shape object geometry independently from any other PathIterator objects in use at the same time.

      Specified by:
      getPathIterator in interface Shape
      Parameters:
      at - an optional AffineTransform to be applied to the coordinates as they are returned in the iteration, or null if untransformed coordinates are desired
      flatness - the maximum distance that the line segments used to approximate the curved segments are allowed to deviate from any point on the original curve
      Returns:
      a new PathIterator that independently traverses the Shape geometry.