Error in IFC to XKT Conversion: "No basis found for brep"

[laguisse]

Hi,

I’m trying to convert an IFC file to XKT using the xeokit-convert tool, but I’m encountering an issue during the conversion process. Here are the details:

When running the command:
node convert2xkt.js -s WPM-NTO-CAE-STR-M3D-00000.ifc -o WPM-NTO-CAE-STR-M3D-00000.ifc.xkt -l

I receive repeated error messages in the output:
ERROR: No basis found for brep!

This error occurs multiple times throughout the conversion process. Despite this, the conversion finishes, and the XKT file is generated, but I am concerned that the error might indicate that parts of the IFC model are not being converted properly.

Here are some details from the output:

File: WPM-NTO-CAE-STR-M3D-00000.ifc
Size: 40076.42 kB
XKT size: 1446.00 kB
Converted objects: 569
Converted triangles: 170967
Converted geometries: 562
Could you please help me understand what the error means and whether it impacts the accuracy of the conversion? Is there a configuration or adjustment I need to make to ensure the conversion handles the brep geometry correctly?

Thank you for your help!

[samber42]

Hi,

I have the same problem here. I tried many version of xeokit-convert but I still receive recurring errors during the conversion like :

1. ERROR: No basis found for brep!
2. multiple "trizero" and "triERROR"

Here is my console output :
[convert2xkt] Creating default metamodel in XKT
[convert2xkt] Input file parsed OK. Building XKT document...
[convert2xkt] XKT document built OK. Writing to XKT file...
[convert2xkt] Converted to: XKT v10
[convert2xkt] XKT size: 4363.70 kB
[convert2xkt] XKT textures size: 0.01kB
[convert2xkt] Compression ratio: 35.78
[convert2xkt] Conversion time: 304.66 s
[convert2xkt] Converted metaobjects: 8741
[convert2xkt] Converted property sets: 13456
[convert2xkt] Converted drawable objects: 8269
[convert2xkt] Converted geometries: 24984
[convert2xkt] Converted textures: 0
[convert2xkt] Converted textureSets: 0
[convert2xkt] Converted triangles: 1323651
[convert2xkt] Converted vertices: 3970953
[convert2xkt] Converted UVs: 0
[convert2xkt] Converted normals: 0
[convert2xkt] Converted tiles: 1
[convert2xkt] minTileSize: 200

The xkt file is created but when I try to display the result it shows nothing. Data structure is well defined thought.

Thanks for your help.