UDim: Difference between revisions

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Revision as of 04:57, 28 April 2010

Description

UDim stands for Universal Dimension, and uses 2 coordinates.

A UDim consists of a Scale and an Offset. These are used to figure out where exactly the UDim's position is.

Scale is a number between 0.0 and 1.0 that is a percentage of the parent object's size. For example, if the parent object is 50 pixels wide, a UDim scale of 0.5 would be 25 pixels wide. 0.5 makes the size 50% of it's parent, same as 0.38 is 38%, 0.85 is 85%, and so on.

Offset is a specified Integer. This is a non changing value that is factored into the UDim calculation.

The final result is a combination of Scale and Offset. Scale * Parent's Size + Offset.

Constructors

Constructor Description
UDim.new(Scale, Offset) Creates a new UDim from components

Properties

All of these properties are Read Only (you can't just set them UDim.Scale = 5, it doesn't work) but you can create new UDim.new( 5, UDim.Offset ).

Property Type Description
UDim.Scale Number The scale value
UDim.Offset Number The offset value

Operators

Operation Description
UDim + UDim returns UDim with each component added individually