Unhandled exception error...

[imakihi]

Hi there.
I tried pg2b3dm with the simplest example. I prepared one simple polygon and run a command like this.
pg2b3dm -h myconnection.postgresbridge.com -U postgres -c geom -d postgres -t tmp

Then I got following.

Tool: pg2b3dm 2.6.0.0
Options: -h myconnection.postgresbridge.com -U postgres -c geom -d postgres -t tmp
Password for user postgres:
Start processing 2024-04-01T15:20:46....
Input table: tmp
Input geometry column: geom
App mode: Cesium
Spatial reference of tmp.geom: 4326
Spatial index detected on tmp.geom
Query bounding box of tmp.geom...
Bounding box for tmp.geom (in WGS84): 140.20479826, 41.42938574, 140.22322716, 41.43358218
Height values: [0 m - 0 m]
Default color: #FFFFFF
Default metallic roughness: #008000
Doublesided: True
Create glTF tiles: True
Attribute columns: -
Center (wgs84): 140.21401271450253, 41.431483959650905
Starting Cesium mode...
Translation ECEF: -3680072.5,3064596.25,4198470
3D Tiles version: 1.1
Lod column:
Radius column:
Geometric errors: 2000,0
Refinement: REPLACE
Geometric error used for implicit tiling: 2000
Add outlines: False
Use 3D Tiles 1.1 implicit tiling: True
Maximum features per tile: 1000
Start generating tiles...
Creating tile: 0_0_0.glb Unhandled exception. System.InvalidOperationException: Nullable object must have a value.
at Triangulate.PolygonExtensions.GetNormal(Polygon polygon)
at Triangulate.Triangulator.TriangulatePolygon(Polygon inputpolygon)
at Triangulate.Triangulator.GetTriangles(List1 geometries) at Triangulate.Triangulator.Triangulate(MultiPolygon multipolygon) at Triangulate.Triangulator.Triangulate(Geometry geom) at Wkb2Gltf.GeometryProcessor.GetTrianglesFromPolygons(Geometry geometry, Double[] translation, Double[] scale) in D:\dev\github.com\geodan\pg2b3dm\src\wkb2gltf.core\GeometryProcessor.cs:line 58 at Wkb2Gltf.GeometryProcessor.GetTriangles(Geometry geometry, Int32 batchId, Double[] translation, Double[] scale, ShaderColors shadercolors, Nullable1 radius) in D:\dev\github.com\geodan\pg2b3dm\src\wkb2gltf.core\GeometryProcessor.cs:line 26
at pg2b3dm.TileWriter.GetTriangles(List1 geomrecords, Double[] translation, Double[] scale) in D:\dev\github.com\geodan\pg2b3dm\src\wkb2gltf.core\TileWriter.cs:line 41 at pg2b3dm.QuadtreeTiler.GenerateTiles(BoundingBox bbox, Tile tile, List1 tiles, Int32 lod, Boolean addOutlines, String defaultColor, String defaultMetallicRoughness, Boolean doubleSided, Boolean createGltf) in D:\dev\github.com\geodan\pg2b3dm\src\b3dm.tileset\QuadtreeTiler.cs:line 108
at pg2b3dm.Program.<>c__DisplayClass2_0.

b__0(Options o) in D:\dev\github.com\geodan\pg2b3dm\src\pg2b3dm\Program.cs:line 187
at CommandLine.ParserResultExtensions.WithParsed[T](ParserResult1 result, Action1 action)
at pg2b3dm.Program.Main(String[] args) in D:\dev\github.com\geodan\pg2b3dm\src\pg2b3dm\Program.cs:line 27

I saw an output/content folder but the folder is empty. Can you help me to understand what I do wrong?
Thank you!

[imakihi]

After I tride severl things, it worked now. I changed my geometry to polyhedralsurface. Then I could show my output.
I will keep trying but so far so good!
This is very exciting.
Thanks.

[bertt]

Ok, Polygon should also work, did you add z values?

[imakihi]

@bertt
I will go back and chec if I added Z values to my geometries. Thank you for your suggestion!
Best.