0.0.2

Bugfix: Degenerate Polygons and the Shapely Formatter

The contours.core.shapely_formatter() could not handle single point polygons or polygons with single point holes.

• In the case of regular contours the shapely_formatter() now returns shapely.geometry.Point objects for single point contour lines.
• In the case of filled contours the shapely_formatter() now removes single point polygons and single point holes in polygons as they are not well defined for filled contours.