Coordinates
(Redirected from Co-ordinates)
Coordinates are used to describe locations. Each one is a group of "ordinate" numbers which taken together can be plotted on a grid, one ordinate per dimension.
Coordinates in Source are (X,Y,Z)
, where X is forward/East, Y is left/North, and Z is up. (0,0,1)
is a point one unit directly above the origin.
Source is using right handed coordinate system.
Coordinates are often stored alongside a set of rotation angles.
Note:'Global' or 'absolute' coordinates refer to the coordinates of the world. All other coordinate systems are 'local' to an entity.
Note:In world, X axis is east and Y axis is north. In Studiomdl Data, X axis is north and Y axis is west.
Origin
The origin of an object is the point at which its local coordinates are (0,0,0)
. It is the mathematical centre from which local coordinates are relative. It is rarely the centre of the visible object, however.
Tip:There can be multiple origins within the same entity: its own origin, the origin of its model, etc. Each origin defines its own local coordinate system relative to its parent.