GetElementMatrix

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This function gets an element's transform matrix. This contains 16 float values that multiplied to a point will give you the point transformed. It is most useful for matrix calculations such as calculating offsets. For further information, please refer to a tutorial of matrices in computer graphics programming.

Syntax

table getElementMatrix ( element theElement )

Required Arguments

  • theElement: The element which you wish to retrieve the matrix for

Returns

Returns a multi-dimensional array containing a 4x4 matrix. </syntaxhighlight>

Example

This example creates a utility function that gets the position that is in front of a specified player. Note that it assumes you have the Lua Matrix library installed. 

function getPositionInFrontOfElement(element)
	--Get the position 5 units in front
	local transformed = matrix{0,5,0} * matrix(getElementMatrix(element)}
	--Get our offset components
	local offX,offY,offZ = transformed[1][1],transformed[2][1],transformed[3][1]
	--Return absolute coordinates by adding the original position
	return offX, offY, offZ
end

See Also


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