* points from a set() polygon can't be removed as input of algo (so polygon is not removed as bottom of pyramid)
* augment points/segments to ensure creation of a pyramid/prism

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32089 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Back to "top face"

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32090 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Don't put again not labeled segments to output

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32091 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ensure polygon = Element[list, i] won't show specific type (e.g. "triangle")

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32092 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e