Hint for beginner to display polygons?

I have lots of data with polygons of 3 to 10 and more points, I think they are not planar. What would be the easiest way to display them? What kind of Geometry would I pick and/or will I have to triangulate them beforehand and how? thanks

Yeah, you will have to triangulate them… especially if they are not planar since they are not really polygons anymore. What do they represent if they aren’t planar?

It’s houses: walls, roofs etc …
Does jme have a triangulator or is there a recommendation?