Package gov.nih.mipav.model.algorithms

Class ContourPlot.Utils

java.lang.Object
gov.nih.mipav.model.algorithms.ContourPlot.Utils
Enclosing class:
ContourPlot
public static class ContourPlot.Utils extends Object
Class containing utility methods
Author:
hageldave

  • Constructor Summary

    Constructors
    Constructor
    Description
    Utils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static double
    clamp(double lower, double v, double upper)
    Clamps value between specified bounds
    static float
    clamp(float lower, float v, float upper)
    Clamps value between specified bounds
    static int
    clamp(int lower, int v, int upper)
    Clamps value between specified bounds
    static <T extends Point2D>
    T
    copy(T p)
    Copies the specified Point2D (calls clone) and casts the copy to the class of the original.
    static final double
    hypot(double x, double y)
    Calculates sqrt(x*x + y*y) which is the hypotenuse length given catheti x and y.
    static ImageObserver
    imageObserver(int flags)
    Creates an ImageObserver that checks the for the specified infoflags.
    static <T extends Comparable<T>>
    boolean
    isSorted(Iterator<T> iter)
    Checks if specified iterator is sorted according to natural ordering.
    static double
    max3(double v0, double v1, double v2)
    Returns the maximum of 3 values
    static double
    min3(double v0, double v1, double v2)
    Returns the minimum of 3 values
    static <T> Stream<T>
    parallelize(Stream<T> stream, boolean parallel)
    Syntactic sugar for conditional stream.parallel().
    private static boolean
    pointInTri(double px, double py, double x0, double y0, double x1, double y1, double x2, double y2)
     
    static boolean
    rectIntersectsOrIsContainedInTri(Rectangle2D rect, double x0, double y0, double x1, double y1, double x2, double y2)
    tests intersection or containment of rectangle and triangle.
    private static double
    sign(double x1, double y1, double x2, double y2, double x3, double y3)
     
    static <P extends Point2D>
    P
    swapYAxis(P point, int height)
    Swaps between GL and AWT coordinates, AWT coordinate system has its origin in the top left corner of a component and downwards pointing y axis, whereas GL has its origin in the bottom left corner of the viewport (at least in JPlotter) and upwards pointing y axis.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Utils

      public Utils()

  • Method Details

    • copy

      public static <T extends Point2D> T copy(T p)
      Copies the specified Point2D (calls clone) and casts the copy to the class of the original.
      Type Parameters:
      T - type of Point2D
      Parameters:
      p - point to copy
      Returns:
      the copied point

    • copy

      public static <T extends RectangularShape> T copy(T r)
      Copies the specified RectangularShape (calls clone) and casts the copy to the class of the original.
      Type Parameters:
      T - type of RectangularShape
      Parameters:
      r - rectangle to copy
      Returns:
      the copied rectangle

    • isSorted

      public static <T extends Comparable<T>> boolean isSorted(Iterator<T> iter)
      Checks if specified iterator is sorted according to natural ordering.
      Type Parameters:
      T - element type that implements Comparable
      Parameters:
      iter - iterator
      Returns:
      true if sorted, false otherwise

    • parallelize

      public static <T> Stream<T> parallelize(Stream<T> stream, boolean parallel)
      Syntactic sugar for conditional stream.parallel().
      Type Parameters:
      T - element type of stream
      Parameters:
      stream - to make parallel
      parallel - whether to make parallel or not
      Returns:
      stream.parallel() if true

    • clamp

      public static double clamp(double lower, double v, double upper)
      Clamps value between specified bounds
      Parameters:
      lower - minimum value
      v - value to clamp
      upper - maximum value
      Returns:
      max(lower,min(upper,v))

    • clamp

      public static float clamp(float lower, float v, float upper)
      Clamps value between specified bounds
      Parameters:
      lower - minimum value
      v - value to clamp
      upper - maximum value
      Returns:
      max(lower,min(upper,v))

    • clamp

      public static int clamp(int lower, int v, int upper)
      Clamps value between specified bounds
      Parameters:
      lower - minimum value
      v - value to clamp
      upper - maximum value
      Returns:
      max(lower,min(upper,v))

    • min3

      public static double min3(double v0, double v1, double v2)
      Returns the minimum of 3 values
      Parameters:
      v0 - value
      v1 - value
      v2 - value
      Returns:
      minimum

    • max3

      public static double max3(double v0, double v1, double v2)
      Returns the maximum of 3 values
      Parameters:
      v0 - value
      v1 - value
      v2 - value
      Returns:
      maximum

    • rectIntersectsOrIsContainedInTri

      public static boolean rectIntersectsOrIsContainedInTri(Rectangle2D rect, double x0, double y0, double x1, double y1, double x2, double y2)
      tests intersection or containment of rectangle and triangle.
      Parameters:
      rect - rectangle to test
      x0 - x coordinate of 0th triangle vertex
      y0 - y coordinate of 0th triangle vertex
      x1 - x coordinate of 1st triangle vertex
      y1 - y coordinate of 1st triangle vertex
      x2 - x coordinate of 2nd triangle vertex
      y2 - y coordinate of 2nd triangle vertex
      Returns:
      true when intersecting

    • sign

      private static double sign(double x1, double y1, double x2, double y2, double x3, double y3)

    • pointInTri

      private static boolean pointInTri(double px, double py, double x0, double y0, double x1, double y1, double x2, double y2)

    • imageObserver

      public static ImageObserver imageObserver(int flags)
      Creates an ImageObserver that checks the for the specified infoflags. See ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int).
      Parameters:
      flags - infoflags to check
      Returns:
      a new ImageObserver

    • hypot

      public static final double hypot(double x, double y)
      Calculates sqrt(x*x + y*y) which is the hypotenuse length given catheti x and y.
      Parameters:
      x - a value
      y - a value
      Returns:
      hypotenuse length

    • swapYAxis

      public static <P extends Point2D> P swapYAxis(P point, int height)
      Swaps between GL and AWT coordinates, AWT coordinate system has its origin in the top left corner of a component and downwards pointing y axis, whereas GL has its origin in the bottom left corner of the viewport (at least in JPlotter) and upwards pointing y axis.
      Type Parameters:
      P - type of Point2D
      Parameters:
      point - to swap the y axis of
      height - of the component or viewport
      Returns:
      point in coordinates of the other reference coordinate system.