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Hi JP,

As I suggested previously, in mesh7 the buildings are close to the mesh edge and the edge length criteria is too large to accommodate this small distance. This confuses the mesher and as a consequence you end up with strange triangles. See attached image. The solution is to move the outline.

Also, I would suggest you shift the entire mesh (your source data) towards the origin because your data needs more than 7 significant digits to resolve the geometry properly and Blue Kenue doesn't support double precision selafin files yet. There are several posts on this forum that discuss this.

Hope this helps... Martin

Hi,

Thanks to Serrer and after many tests I found two main reasons to my problem :

1) I had two polygons linked by only one angle (WrongGeometry.png). I corrected it as show in GoodGeometry.png

2) FUDAA don't like to work with too big coordinates ( 6 000 000 for lambert 93). So i shift all my mesh component towards the origin (0,0)

Thanks a lot Serrer !!!

Hi
just a precision about on large coordinates

If the coordinates are greater than one million, you must activate the "SERAFIND" option for file formats in the format "serafin". Fudaa can automatically read this format.

Best reagrds