Custom Size plugin with correct ratio

[Ties79]

Hi, I'm using the iStraxx plugin Custom Size. I'm selling posters with a fixed ratio. Now people can fill in their height and length, but what I want is that people can fill in or a hight, or a length and the other size is calculated automatically by ratio. For example I use a ratio of 1:2. The customer fill in a height of 100cm, than the plugin must fill in automatically 200cm in the width field. How can I do that?? Anybody?

[rinopiponte]

You can write the developers, I know they are usually opened for new features.

On the other hand you can try using my extension

Here is a demo: http://design-it.es/lienzo-detail
and Here download page: http://design-it.es/diseno-web-extensiones/your-size-custom-size-virtuemart-detail

It allows to set max. and min. sizes. However, I could tune it for your personal needs, even your already acquired extension.

Regards.