Difference between revisions of "Matrix"
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=== <translate>Constants</translate> === | === <translate>Constants</translate> === | ||
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Revision as of 13:58, 30 January 2020
Supported platforms:
Available since: Gideros 2011.6
Inherits from: Object
Description
The Matrix class specifies transformation from one coordinate space to another.
These transformations include translation, rotation, scaling and skewing.
A 2D transformation matrix is a 3 x 3 matrix in homogeneous coordinate system:
You can get and set the values of all six of the properties in a Matrix object: m11, m12, m21, m22, tx, and ty.
Since Gideros 2016.6, Matrix can also hold 3D (4x4) matrices.
Examples
Applying matrix to Sprite objects
local angle = math.rad(30)
-- create skew matrix
local m = Matrix.new(1, math.tan(angle), math.tan(angle), 1, 0, 0)
-- apply to Sprite
local sprite = Sprite.new()
sprite:setMatrix(m)
MethodsMatrix.new creates a new Matrix object |
EventsConstants |