pub type Matrix3<T> = Matrix<T, U3, U3, ArrayStorage<T, 3, 3>>;
Expand description
A stack-allocated, column-major, 3x3 square matrix.
Because this is an alias, not all its methods are listed here. See the Matrix
type too.
Aliased Type§
struct Matrix3<T> {
pub data: ArrayStorage<T, 3, 3>,
/* private fields */
}
Fields§
§data: ArrayStorage<T, 3, 3>
The data storage that contains all the matrix components. Disappointed?
Well, if you came here to see how you can access the matrix components,
you may be in luck: you can access the individual components of all vectors with compile-time
dimensions <= 6 using field notation like this:
vec.x
, vec.y
, vec.z
, vec.w
, vec.a
, vec.b
. Reference and assignation work too:
let mut vec = Vector3::new(1.0, 2.0, 3.0);
vec.x = 10.0;
vec.y += 30.0;
assert_eq!(vec.x, 10.0);
assert_eq!(vec.y + 100.0, 132.0);
Similarly, for matrices with compile-time dimensions <= 6, you can use field notation
like this: mat.m11
, mat.m42
, etc. The first digit identifies the row to address
and the second digit identifies the column to address. So mat.m13
identifies the component
at the first row and third column (note that the count of rows and columns start at 1 instead
of 0 here. This is so we match the mathematical notation).
For all matrices and vectors, independently from their size, individual components can
be accessed and modified using indexing: vec[20]
, mat[(20, 19)]
. Here the indexing
starts at 0 as you would expect.
Implementations§
source§impl<T: RealField> Matrix3<T>
impl<T: RealField> Matrix3<T>
§2D transformations as a Matrix3
sourcepub fn new_rotation(angle: T) -> Self
pub fn new_rotation(angle: T) -> Self
Builds a 2 dimensional homogeneous rotation matrix from an angle in radian.
sourcepub fn new_nonuniform_scaling_wrt_point(
scaling: &Vector2<T>,
pt: &Point2<T>
) -> Self
pub fn new_nonuniform_scaling_wrt_point( scaling: &Vector2<T>, pt: &Point2<T> ) -> Self
Creates a new homogeneous matrix that applies a scaling factor for each dimension with respect to point.
Can be used to implement zoom_to
functionality.