[osg-users] Scale model node to specific size

[Zev Lix]

Hi,
I wonder if there is a way of scaling a model to a specific size? So if i have two models that have different sizes when loaded into osg, i want to scale these two models so that they have the same lenght or width.

Example if i have two models of cars they should both have X length in my osg application regardless of how big they were when created in some model program.

I know i could just create the models in the right size to start with. but this is a problem when adding models made by other people.

Thank you!

Cheers,
Zev

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[Alberto Luaces]

"Zev Lix" writes:

> Hi, I wonder if there is a way of scaling a model to a specific size?
> So if i have two models that have different sizes when loaded into
> osg, i want to scale these two models so that they have the same
> lenght or width.
>
> Example if i have two models of cars they should both have X length in
> my osg application regardless of how big they were when created in
> some model program.
>
> I know i could just create the models in the right size to start
> with. but this is a problem when adding models made by other people.

Hi Zev, you can get the total dimensions with the osg::BoundingBox of
the object. Later you can scale it to the right size placing it under a
osg::MatrixTransform node with a scale matrix.

--
Alberto

[Mahadev Kurkundi]

Thanks Alberto. The answer helped me to resize the model as required.