[O: ]
[O:
<PictureName>,<X>,<Y>,<D>
]
Overlay
Overlays the picture <PictureName>
on a base picture at the coordinates <X>
, <Y>
. The number of pixels specified in <D>
are cropped from the bottom of the overlay picture, thus enabling one to "push" the overlay picture down. The default for <X>
places the middle of the overlay picture at the middle of the base picture and the default for <Y>
places the overlay picture on the top edge of the base picture. The default for <D>
is 0
.
This command can be used to place loads, logos and other such modifiers onto vehicles. The <D>
parameter is used when, for example, a load "floats" over a freight wagon because the wagon's load area is not the highest portion of the picture, such as with a low sided open wagon or gondola. By inputting a <D>
value you can "push" the load down to its proper resting surface, which in the above case, would be behind the walls of the wagon. Using <D>
is only helpful when the base picture is not transparent. If the base picture is transparent, the correct command is [OT: ]
.
If the overlay picture has transparent pixels, the picture is copied before the base picture.
There are 3 groups of similar modifiers.
The [O: ], [OT: ], [OB: ]
modifiers put the overlay picture immediately on the specified position.
The [P: ], [PT: ], [PB: ]
modifiers define the place for the overlay picture (usually in a macro definition), the overlay picture will be specified in a following modifier.
The [D: ], [DT: ], [DB: ]
modifiers define both the position and the overlay picture (usually in a macro definition), the overlay picture will be placed only at the usage of a following modifier, having to specify only the name of the overlaying, a single word.