Class Mat33

java.lang.Object
org.jbox2d.common.Mat33
All Implemented Interfaces:
java.io.Serializable

public class Mat33 extends java.lang.Object implements java.io.Serializable
A 3-by-3 matrix. Stored in column-major order.
See Also:
  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      See Also:
    • IDENTITY

      public static final Mat33 IDENTITY
    • ex

      public final Vec3 ex
    • ey

      public final Vec3 ey
    • ez

      public final Vec3 ez
  • Constructor Details

    • Mat33

      public Mat33()
    • Mat33

      public Mat33(Vec3 argCol1, Vec3 argCol2, Vec3 argCol3)
  • Method Details

    • setZero

      public void setZero()
    • mul

      public static final Vec3 mul(Mat33 A, Vec3 v)
    • mul22

      public static final Vec2 mul22(Mat33 A, Vec2 v)
    • mul22ToOut

      public static final void mul22ToOut(Mat33 A, Vec2 v, Vec2 out)
    • mul22ToOutUnsafe

      public static final void mul22ToOutUnsafe(Mat33 A, Vec2 v, Vec2 out)
    • mulToOut

      public static final void mulToOut(Mat33 A, Vec3 v, Vec3 out)
    • mulToOutUnsafe

      public static final void mulToOutUnsafe(Mat33 A, Vec3 v, Vec3 out)
    • solve22

      public final Vec2 solve22(Vec2 b)
      Solve A * x = b, where b is a column vector. This is more efficient than computing the inverse in one-shot cases.
      Parameters:
      b -
      Returns:
    • solve22ToOut

      public final void solve22ToOut(Vec2 b, Vec2 out)
      Solve A * x = b, where b is a column vector. This is more efficient than computing the inverse in one-shot cases.
      Parameters:
      b -
    • solve33

      public final Vec3 solve33(Vec3 b)
      Solve A * x = b, where b is a column vector. This is more efficient than computing the inverse in one-shot cases.
      Parameters:
      b -
      Returns:
    • solve33ToOut

      public final void solve33ToOut(Vec3 b, Vec3 out)
      Solve A * x = b, where b is a column vector. This is more efficient than computing the inverse in one-shot cases.
      Parameters:
      b -
      out - the result
    • getInverse22

      public void getInverse22(Mat33 M)
    • getSymInverse33

      public void getSymInverse33(Mat33 M)
    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class java.lang.Object
    • equals

      public boolean equals(java.lang.Object obj)
      Overrides:
      equals in class java.lang.Object