Matrix

Create an identity matrix

Create a matrix that is a (deep) copy of src

Returns true iff obj is a Matrix and its values equal our values.

Copy 9 values from the matrix into the array.

Returns an integer hash code for this object. By contract, any two objects for which equals(Object) returns true must return the same hash code value. This means that subclasses of Object usually override both methods or neither method.

Note that hash values must not change over time unless information used in equals comparisons also changes.

See Writing a correct hashCode method if you intend implementing your own hashCode method.

If this matrix can be inverted, return true and if inverse is not null, set inverse to be the inverse of this matrix. If this matrix cannot be inverted, ignore inverse and return false.

Returns true if the matrix is identity. This maybe faster than testing if (getType() == 0)

Apply this matrix to the array of 2D points, and write the transformed points back into the array

Apply this matrix to the array of 2D points specified by src, and write the transformed points into the array of points specified by dst. The two arrays represent their "points" as pairs of floats [x, y].

Apply this matrix to the array of 2D points specified by src, and write the transformed points into the array of points specified by dst. The two arrays represent their "points" as pairs of floats [x, y].

Return the mean radius of a circle after it has been mapped by this matrix. NOTE: in perspective this value assumes the circle has its center at the origin.

Apply this matrix to the src rectangle, and write the transformed rectangle into dst. This is accomplished by transforming the 4 corners of src, and then setting dst to the bounds of those points.

Apply this matrix to the rectangle, and write the transformed rectangle back into it. This is accomplished by transforming the 4 corners of rect, and then setting it to the bounds of those points

Apply this matrix to the array of 2D vectors specified by src, and write the transformed vectors into the array of vectors specified by dst. The two arrays represent their "vectors" as pairs of floats [x, y]. Note: this method does not apply the translation associated with the matrix. Use mapPoints(float[], float[]) if you want the translation to be applied.

Apply this matrix to the array of 2D vectors, and write the transformed vectors back into the array. Note: this method does not apply the translation associated with the matrix. Use mapPoints(float[]) if you want the translation to be applied.

Apply this matrix to the array of 2D vectors specified by src, and write the transformed vectors into the array of vectors specified by dst. The two arrays represent their "vectors" as pairs of floats [x, y]. Note: this method does not apply the translation associated with the matrix. Use mapPoints(float[], int, float[], int, int) if you want the translation to be applied.

Postconcats the matrix with the specified matrix. M' = other * M

Postconcats the matrix with the specified rotation. M' = R(degrees) * M

Postconcats the matrix with the specified rotation. M' = R(degrees, px, py) * M

Postconcats the matrix with the specified scale. M' = S(sx, sy) * M

Postconcats the matrix with the specified scale. M' = S(sx, sy, px, py) * M

Postconcats the matrix with the specified skew. M' = K(kx, ky, px, py) * M

Postconcats the matrix with the specified skew. M' = K(kx, ky) * M

Postconcats the matrix with the specified translation. M' = T(dx, dy) * M

Preconcats the matrix with the specified matrix. M' = M * other

Preconcats the matrix with the specified rotation. M' = M * R(degrees)

Preconcats the matrix with the specified rotation. M' = M * R(degrees, px, py)

Preconcats the matrix with the specified scale. M' = M * S(sx, sy)

Preconcats the matrix with the specified scale. M' = M * S(sx, sy, px, py)

Preconcats the matrix with the specified skew. M' = M * K(kx, ky, px, py)

Preconcats the matrix with the specified skew. M' = M * K(kx, ky)

Preconcats the matrix with the specified translation. M' = M * T(dx, dy)

Returns true if will map a rectangle to another rectangle. This can be true if the matrix is identity, scale-only, or rotates a multiple of 90 degrees.

Set the matrix to identity

(deep) copy the src matrix into this matrix. If src is null, reset this matrix to the identity matrix.

Set the matrix to the concatenation of the two specified matrices, returning true if the the result can be represented. Either of the two matrices may also be the target matrix. this = a * b

Set the matrix such that the specified src points would map to the specified dst points. The "points" are represented as an array of floats, order [x0, y0, x1, y1, ...], where each "point" is 2 float values.

Set the matrix to the scale and translate values that map the source rectangle to the destination rectangle, returning true if the the result can be represented.

Set the matrix to rotate about (0,0) by the specified number of degrees.

Set the matrix to rotate by the specified number of degrees, with a pivot point at (px, py). The pivot point is the coordinate that should remain unchanged by the specified transformation.

Set the matrix to scale by sx and sy, with a pivot point at (px, py). The pivot point is the coordinate that should remain unchanged by the specified transformation.

Set the matrix to scale by sx and sy.

Set the matrix to rotate by the specified sine and cosine values.

Set the matrix to rotate by the specified sine and cosine values, with a pivot point at (px, py). The pivot point is the coordinate that should remain unchanged by the specified transformation.

Set the matrix to skew by sx and sy, with a pivot point at (px, py). The pivot point is the coordinate that should remain unchanged by the specified transformation.

Set the matrix to skew by sx and sy.

Set the matrix to translate by (dx, dy).

Copy 9 values from the array into the matrix. Depending on the implementation of Matrix, these may be transformed into 16.16 integers in the Matrix, such that a subsequent call to getValues() will not yield exactly the same values.

Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:

          getClass().getName() + '@' + Integer.toHexString(hashCode())
         

See Writing a useful toString method if you intend implementing your own toString method.

Invoked when the garbage collector has detected that this instance is no longer reachable. The default implementation does nothing, but this method can be overridden to free resources.

Note that objects that override finalize are significantly more expensive than objects that don't. Finalizers may be run a long time after the object is no longer reachable, depending on memory pressure, so it's a bad idea to rely on them for cleanup. Note also that finalizers are run on a single VM-wide finalizer thread, so doing blocking work in a finalizer is a bad idea. A finalizer is usually only necessary for a class that has a native peer and needs to call a native method to destroy that peer. Even then, it's better to provide an explicit close method (and implement Closeable ), and insist that callers manually dispose of instances. This works well for something like files, but less well for something like a BigInteger where typical calling code would have to deal with lots of temporaries. Unfortunately, code that creates lots of temporaries is the worst kind of code from the point of view of the single finalizer thread.

If you must use finalizers, consider at least providing your own ReferenceQueue and having your own thread process that queue.

Unlike constructors, finalizers are not automatically chained. You are responsible for calling super.finalize() yourself.

Uncaught exceptions thrown by finalizers are ignored and do not terminate the finalizer thread. See Effective Java Item 7, "Avoid finalizers" for more.