The help file gives the following simplification example:

Hi,

you can apply the simplification whenever you want. It is a generic algorithm that is not closely related to maps, it just simplifies polygon shapes, so you can apply it at any time. There's no an algorithm for selecting a tolerance parameter, because it depends on you map's data and the goals of your project, so our advice is to experiment until you are pleased with the results.

Note that for now the simplification acts on polygons only, so it is recommended to use it only on single shapes that are not connected to others such as islands or continents shoreline.

Hi

What I am trying to do is load a very complex map (of Canada), but simplify it as I load it.  Currently, the speed for zooming and panning is completely unusable.  Can I simplify the map as I load it?  If not, please can you suggest a way to achieve this.

Thanks

Kevin

Hi,

currently there's no way to simplify the map while loading it. If you need a simpler map, we recommend you use a simpler shape file. There is a huge amount of them over the Internet, so you can easily find a smaller one.