Create mesh should check that interior regions are contained in bounding polygon

[ole]

Jane's test has been added to the beginning but because georeferencing is resolved further down in the code it won't work yet. Perhaps, the interface needs to assume absolute UTM coordinates ? See changeset:3038 for details

[duncan]

Janes test passes. Other tests fail though, since the added code doesn't take into account geo-referencing.

The interface does assume absolute UTM.

I'll update inside polygon, so it can handle geospatial objects. Then fix the added code so it takes geo_referencing (and geo_spatial) into account.

[duncan]

Actually other tests were failing since the interior polygons were outside the bounding polygon! Fixed that and it works.

Also, inside_polygon not handles geo_spatial objects.

[duncan]

typpo - Also, inside_polygon now handles geo_spatial objects.