Interface Matrix

All Known Implementing Classes:
Matrix1, Matrix2, Matrix3, Matrix4, Matrix­SIS
@UML(identifier="PT_Matrix", specification=OGC_01009) public interface Matrix
A two dimensional array of numbers. Row and column numbering begins with zero. The API for this interface matches closely the API in various
invalid reference 
matrix
implementations available in Java3D, which should enable straightforward implementations. Java3D provides matrix for the general case and optimized versions for 3×3 and 4×4 cases, which are quite common in a transformation package.
Since:
1.0
See Also:
  • invalid reference 
    javax​.vecmath​.Matrix3d
  • invalid reference 
    javax​.vecmath​.Matrix4d
  • invalid reference 
    javax​.vecmath​.GMatrix
  • Affine­Transform
  • invalid reference 
    javax​.media​.jai​.Perspective­Transform
  • invalid reference 
    javax​.media​.j3d​.Transform3D
  • Jama matrix

  • Method Summary

    Modifier and Type
    Method
    Description
    Matrix
    clone()
    Returns a clone of this matrix.
    double
    get­Element(int row, int column)
    Retrieves the value at the specified row and column of this matrix.
    int
    get­Num­Col()
    Returns the number of columns in this matrix.
    int
    get­Num­Row()
    Returns the number of rows in this matrix.
    boolean
    is­Identity()
    Returns true if this matrix is an identity matrix.
    void
    set­Element(int row, int column, double value)
    Modifies the value at the specified row and column of this matrix.

  • Method Details

    • getNumRow

      int getNumRow()
      Returns the number of rows in this matrix.
      Returns:
      The number of rows in this matrix.

    • getNumCol

      int getNumCol()
      Returns the number of columns in this matrix.
      Returns:
      The number of columns in this matrix.

    • getElement

      double getElement(int row, int column)
      Retrieves the value at the specified row and column of this matrix.
      Parameters:
      row - The row number to be retrieved (zero indexed).
      column - The column number to be retrieved (zero indexed).
      Returns:
      The value at the indexed element.

    • setElement

      void setElement(int row, int column, double value)
      Modifies the value at the specified row and column of this matrix.
      Parameters:
      row - The row number to be retrieved (zero indexed).
      column - The column number to be retrieved (zero indexed).
      value - The new matrix element value.

    • isIdentity

      boolean isIdentity()
      Returns true if this matrix is an identity matrix.
      Returns:
      true if this matrix is an identity matrix.

    • clone

      Matrix clone()
      Returns a clone of this matrix.
      Returns:
      A clone of this matrix.