Package ptolemy.vergil.actor

Class KielerLayoutUtil

  • public final class KielerLayoutUtil
extends java.lang.Object
    Static helper class for the KIELER classes implementing connector behavior, i.e. special edge routing mechanisms.
    Since:
    Ptolemy II 11.0
    Version:
    $Id$
    Author:
    Ulf Rueegg

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.awt.geom.Point2D getCenterPoint​(Site site)
      Get the center point of a Perimeter Site.
      static java.awt.geom.Point2D[] getHeadTailPoints​(Connector connector, java.util.List<java.awt.geom.Point2D> bendPoints)
      Get the starting and ending points of a connector.
      static Locatable getLocation​(NamedObj namedObj)
      Find a location for the given object.
      static java.awt.geom.Point2D getLocationPoint​(Locatable locatable)
      Retrieve the actual position from a locatable instance.
      static java.awt.geom.Point2D getLocationPoint​(NamedObj namedObj)
      Get the location given by the location attribute of the given input object.
      static double getNormal​(java.awt.geom.Point2D origin, java.awt.geom.Point2D other)
      Get the angle in radians from the origin to the other point.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • KielerLayoutUtil

        public KielerLayoutUtil()

    • Method Detail

      • getCenterPoint

        public static java.awt.geom.Point2D getCenterPoint​(Site site)
        Get the center point of a Perimeter Site. Copied the idea from PerimeterSite.getPoint(double).
        Parameters:
        site - the site
        Returns:
        the center point of the shape that corresponds to the site

      • getHeadTailPoints

        public static java.awt.geom.Point2D[] getHeadTailPoints​(Connector connector,
                                                        java.util.List<java.awt.geom.Point2D> bendPoints)
        Get the starting and ending points of a connector. Copied some code from BasicManhattanRouter.routeManhattan(diva.canvas.connector.ManhattanConnector).
        Parameters:
        connector - The connector.
        bendPoints - a list of bendpoints to determine the anchor point on the site
        Returns:
        the anchor points at the start and end of the connection, i.e. a Point2D array of size 2

      • getNormal

        public static double getNormal​(java.awt.geom.Point2D origin,
                               java.awt.geom.Point2D other)
        Get the angle in radians from the origin to the other point.
        Parameters:
        origin - the original point
        other - the other point
        Returns:
        angle in radians

      • getLocation

        public static Locatable getLocation​(NamedObj namedObj)
        Find a location for the given object.
        Parameters:
        namedObj - a model object
        Returns:
        the object's location, or null if there is no location

      • getLocationPoint

        public static java.awt.geom.Point2D getLocationPoint​(NamedObj namedObj)
        Get the location given by the location attribute of the given input object. If the Ptolemy object has no location attribute, return double zero.
        Parameters:
        namedObj - The Ptolemy object for which the location should be retrieved.
        Returns:
        A vector corresponding to the location (x and y) of the object. Will return a zero vector if no location attribute is set for the object.

      • getLocationPoint

        public static java.awt.geom.Point2D getLocationPoint​(Locatable locatable)
        Retrieve the actual position from a locatable instance.
        Parameters:
        locatable - a locatable
        Returns:
        the actual position, or null if none is found