description.csv

i101_1.gml;cube with top face having only 2 points
i102_1.gml;cube with one duplicate vertex (repeated in a ring)
i104_1.gml;cube where top face has a bow tie
i104_2.gml;unit cube with top face having a self-intersecting surface (2D invalid), 2 of the faces of cube22 are 'bundled' as one polygon (which self-intersects)
i105_1.gml;cube3 where inner ring is collapsed to a line
i201_1.gml;unit cube with a intersecting rings in top face
i202_1.gml;unit cube with a duplicate inner ring top face
t203_1.gml;planarity: cube with one point of top surface moved upward by 1e-? units
t203_2.gml;? depends on tolerance
t203_3.gml;? depends on tolerance
t203_4.gml;? depends on tolerance
t203_5.gml;surfaces #4 and #12 ain't planar
i204_1.gml;cube with an almost vertical fold in the top surface, aka the "Kevin Wiebe's case”.  The shift is 1mm. 
i204_2.gml;same shift but vertical
i205_1.gml;unit cube with a polygon with interior disconnected in top face
i206_1.gml;unit cube with a hole in top face located outside
i207_1.gml;unit cube with a polygon with nested rings in top face
i208_1.gml;unit cube with a hole (inner ring) in the top face having same orientation as outer ring
i301_1.gml;volume with only 3 surfaces
i301_2.gml;flat cube, ie with volume of 0
i302_1.gml;unit cube with one face missing (bottom one)
t302_1.gml;snap: cube with top surface having one vertex moved a bit (10cm), to test snapping in GML input
t302_2.gml;snap: cube with top surface having one vertex moved a bit (1cm), to test snapping in GML input
t302_3.gml;snap: cube with top surface having one vertex moved a bit (1mm), to test snapping in GML input
i302_2.gml;unit cube with a hole (inner ring) in the top face, the inner ring isn't filled by another face, so not watertight
i303_1.gml;unit cube with one dangling face touching the cube at one point only, the dangling face is the last in the list
i303_2.gml;cube with one dangling face, touching only at one point, the dangling face is the 1st in the list
i303_3.gml;2 unit cubes touching at one vertex
i304_1.gml;unit cube with an extra vertex on an edge. Only one of the 2 incident faces has it explicitly.
i304_2.gml;unit cube with one extra face in the middle, splitting the cube in two parts
i305_1.gml;cube with one extra face "floating" in the air, not touching
i305_2.gml;2 unit cubes not touching at all, one above the other separated by 1unit
i306_1.gml;house with tip below the ground
i306_2.gml;house with tip touching the bottom face
i306_3.gml;unit cube with one extra face inside another face
i306_4.gml;torus where the hole in the top/bottom faces touches the side surfaces
i307_1.gml;unit cube with one face (face #1) with opposite orientation
i308_1.gml;axis-aligned cube with normals all pointing inwards
i308_2.gml;not axis-aligned cube with normals all pointing inwards
v001.gml;unit cube
v002.gml;not axis-aligned cube with normals all pointing outwards, the first extreme point along x has a flat star
v003.gml;unit cube with top face having 3 triangles forming the square
v004.gml;cube translated by (99999990, 99999990) so that big coordinates
v005.gml;cube translated by (3333399999990, 3333399999990) so that very big coordinates
v006.gml;cube with -100.0 as z-coordinates
v007.gml;a real-life building from Munich
v008.gml;non-convex shape, top and bottom faces are non-convex polygons
v009.gml;cube with a pyramidal roof
v011.gml;cube3 where there are extra faces that fill the hole on top face
v012.gml;cube5 where hole (inner ring) is touching the outer ring of a face
v013.gml;cube3 with one surface filling the hole
v014.gml;a "squared donut", genus of the shell is 1
i103_1.gml;first polygon is not closed