[Chameleon] possible to zoom with factor -1 < x < -2

[Schnider Markus]

Hi all

I'am not sure if I am in the right list.
I wan't make a widget, that can also make a zoomout with factor between 1 and 
2 ( e.g.: $map->zoompoint(-1.08, ....) ).
Is it possible with php_mapscript?
Is it possible with the chameleon class MapNavigator->zoomPoint?

It was only successfull with a factor of  <= -2 (e.g.: -3)

Is it a problem of php_mapscript or of the function MapNavigator->zoomPoint?

Thanks

Markus Schnider