i'm generating some simple scenes from a java application,
    with width: W
    and height: H.

The camera will be - orthographic -.

The objects will be placed in a coordinate system described by:
        right <-1.33,0,0>
   meaning:    positive X is right
                    positive Z is down
                    positive Y comes out of the screen.

The objects will thereon be placed within the rectangle described by these
limitations:
        0 < x < W
        0 < y < H

What i'm looking for, is a good idea on a general formula for placing the
camera in
such a way that the rendered picture will only show the part of my scene
where the
objects are.

A simple illustration if it's needed:)    :


0 ----------------------- W      <-(x-axis (right is positive direction))
|                                        |
|                                        |
|                                        |
|                                        |
|                                        |
|                                        |
H -------------------------|

^(z-axis (down is positive direction))


Thanks in advance,

    Lars Petter

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