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Merging different geometries into one polygon (3D)

  • 23 February 2022
  • 3 replies
  • 33 views

Hi there guys (and girls),

 

I've been trying to combine several 3D-geometries (arcs, polygons, lines) into 1 big polygon.

 

What I have now are seperate parts (a window, a floor, a wall and so on), but what I actually want is a clean building that is only clickable as a whole.

 

I already managed to combine the different geometries into a geometry collection with the Aggregator Transformer, but I was not able to write this geometry to the destination file (OBJ).

 

Does anyone have any idea how I could solve this problem?

 

I am looking forward to hear from someone else from this planet soon,

Claire

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Best answer by mark2atsafe 25 February 2022, 00:55

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3 replies

Userlevel 2
Badge +17

Hi @claireproemeren​,

You could try using a Triangulator to convert your existing 3D surface geometry into Meshes, then using a MeshMerger to group them into a single 3D object for writing to OBJ. Any non-surface geometry (ie. lines, polygons) would need to converted to surfaces first, with the FaceReplacer or Extruder transformers.

Userlevel 4
Badge +25

Another similar option to what Dave suggests might be 3D solids. You could use the Extruder to create solids and then merge them today using FME 2022, which has a SolidDissolver transformer. Just a thought, in case you didn't get the meshes to work.

Thank you so much for your responses.

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