package archimedes

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Module Matrix.Homothety

Transformations that are the composition of translations and inhomogeneous dilations (different scaling factors are allowed in each canonical direction).

type t

See Matrix.t, setting xy = 0 = yx.

val of_matrix : affine -> t

of_matrix m returns a copy of the transformation m if it contains no rotation or raise Invalid_argument otherwise.

val to_matrix : t -> affine

to_matrix m returns a copy of the transformation m.

val make_identity : unit -> t

See Matrix.make_identity.

val make_translate : x:float -> y:float -> t

See Matrix.make_identity.

See Matrix.make_translate.

val make_scale : x:float -> y:float -> t

See Matrix.make_translate.

See Matrix.make_scale.

val set_to_identity : t -> unit

See Matrix.make_scale.

See Matrix.set_to_identity.

val copy : t -> t

See Matrix.set_to_identity.

See Matrix.copy.

val blit : t -> t -> unit

See Matrix.copy.

See Matrix.blit.

val translate : t -> x:float -> y:float -> unit

See Matrix.blit.

See Matrix.translate.

val scale : t -> x:float -> y:float -> unit

See Matrix.translate.

See Matrix.scale.

val invert : t -> unit

See Matrix.scale.

See Matrix.invert.

val det : t -> float

See Matrix.invert.

See Matrix.det.

val mul : t -> t -> t

See Matrix.mul.

val mul_in : t -> t -> t -> unit

See Matrix.mul.

See Matrix.mul_in.

val transform_point : t -> x:float -> y:float -> float * float

See Matrix.mul_in.

See Matrix.transform_point.

val transform_distance : t -> dx:float -> dy:float -> float * float

See Matrix.transform_point.

See Matrix.transform_distance.

val inv_transform_point : t -> x:float -> y:float -> float * float

See Matrix.transform_distance.

See Matrix.inv_transform_point.

val inv_transform_distance : t -> dx:float -> dy:float -> float * float

See Matrix.inv_transform_point.

See Matrix.inv_transform_distance.

val transform_rectangle : ?dist_basepoint:bool -> t -> rectangle -> rectangle

See Matrix.transform_rectangle.