Transform:getMatrix
Available since LÖVE 11.0 |
This function is not supported in earlier versions. |
Gets the internal 4x4 transformation matrix stored by this Transform. The matrix is returned in row-major order.
Contents
Function
Synopsis
e1_1, e1_2, ..., e4_4 = Transform:getMatrix( )
Arguments
None.
Returns
number e1_1
- The first column of the first row of the matrix.
number e1_2
- The second column of the first row of the matrix.
number ...
- Additional matrix elements.
number e4_4
- The fourth column of the fourth row of the matrix.
Examples
Get "Transform:translate" transformations from the matrix:
local function getTranslate(transform)
-- get the matrix from the transform object
local matrix = transform:getMatrix()
-- extract X, Y translation values (4th and 8th elements)
local translateX, translateY = matrix[4], matrix[8]
return translateX, translateY
end
Get "Transform:scale" transformations from the matrix:
local function getScale(transform)
-- get the matrix from the transform object
local matrix = transform:getMatrix()
-- extract X, Y scale values
local scaleX, scaleY = matrix[1], matrix[6]
return scaleX, scaleY
end
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