[Qgis-developer] Derived Area is calculated wrong

[Maciej Sieczka]

Radim Blazek napisa?(a):
> Are there islands in the polygon? Can you check is island
> presence could cause the error?

No islands. The area is a plane, simple circle, which I created in Grass
buffering a point. See:

$ v.build full_circle2
Building topology ...
7 primitives registered
Building areas:  100%
1 areas built
1 isles built
Attaching islands:  100%
Attaching centroids:  100%
Topology was built.
Number of nodes     :   7
Number of primitives:   7
Number of points    :   0
Number of lines     :   0
Number of boundaries:   6
Number of centroids :   1
Number of areas     :   1
Number of isles     :   1

Maciek