Package com.github.basking2.sdsai.marchinesquares

Class IsobandContours

java.lang.Object
com.github.basking2.sdsai.marchinesquares.IsobandContours
public class IsobandContours extends Object
Contours are lines in a square.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected final int
    lineCount
     
    protected final byte[]
    lines
    An array of integers values that represent lines in a square.

  • Constructor Summary

    Constructors
    Constructor
    Description
    IsobandContours(byte p1, byte p2, byte p3, byte p4)
    Create a contour given the 4-element array of point values.

  • Method Summary

    Modifier and Type
    Method
    Description
    static IsobandContours
    build(byte[] pointValues)
    Create a contour given the 4-element array of point values.
    String
    toString()
     

    Methods inherited from class java.lang.Object

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

  • Field Details

    • lines

      protected final byte[] lines
      An array of integers values that represent lines in a square. A square is a 4-cell (2x2) grid. Lines start on even indexes (0, 2, 4) and end on odd indexes (1, 3, 5). Thus the array of 8 can hold 4 line segment. If a line starts and ends on 0, it is not set. Otherwise, the line will be defined by the even-indexed value being the side of the square the line begins on and the odd-indexed value being the side of the square the line ends on. For line start and stop values, 0 means the line starts or ends in the center of the top-side of the square. A value of 1 means the line starts or ends in the center of the right-side of the square. A value of 2 means the line starts or ends in the center of the bottom-side of the square. A value of 3 means the line starts or ends in the center of the left-side of the square.

    • lineCount

      protected final int lineCount

  • Constructor Details

    • IsobandContours

      public IsobandContours(byte p1, byte p2, byte p3, byte p4)
      Create a contour given the 4-element array of point values. Point values may be -1, 0, or 1 denoting that a corner of the square is below, at, or above the threshold. The 4-value array is used to populate the lines member of this class with line segments. The order of the points, starting at index 0 are top-left, top-right, bottom-right, bottom-left. That is, they proceed around the square in a clockwise manner.
      Parameters:
      p1 - The north-west point.
      p2 - The north-east pont.
      p3 - The south-east point.
      p4 - The sout-west point.

  • Method Details

    • build

      public static IsobandContours build(byte[] pointValues)
      Create a contour given the 4-element array of point values. Point values may be -1, 0, or 1 denoting that a corner of the square is below, at, or above the threshold. The 4-value array is used to populate the lines member of this class with line segments. The order of the points, starting at index 0 are top-left, top-right, bottom-right, bottom-left. That is, they proceed around the square in a clockwise manner.
      Parameters:
      pointValues - A 4-element array of values -1, 0, or 1.

    • toString

      public String toString()
      Overrides:
      toString in class Object