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Hi

 

 

I have a 3D city model made out of individual polygons. Polygons forming one building have a common ID (also attr like Type: Wall, Roof). I need to combine/merge/aggregate together shapes beloning to each building. The output should be a shapefile or multipatch.

 

 

I tried using Aggregator in combination with Dissolver and Sorter but data looks fine only in FME viewer. I try to use it in ArcGIS Pro, CityEngine and also in Microstation but data is completely distorted.

 

When I load non-aggregated data in ArcGIS Pro it works fine. But the problem is it has to be combined before I can use it for my project.

Any idea what could be wrong or what other ways I could use?

This is my setup And this is the result when viewed in ArcGIS Pro

Here's sample data, maybe sth is wrong with this data?

Hi @stysiakaleksand,

To create good multi-patch data from your polygons, you must first convert the polygons into 3D faces within FME.

I am attaching a workspace that uses the Triangulator to simplify your polygons into triangles, then a FaceReplacer to convert the triangles into faces.

The results from this workspace display quite nicely in ArcGIS Pro.

polytoface.fmw

Hi @stysiakaleksand,

To create good multi-patch data from your polygons, you must first convert the polygons into 3D faces within FME.

I am attaching a workspace that uses the Triangulator to simplify your polygons into triangles, then a FaceReplacer to convert the triangles into faces.

The results from this workspace display quite nicely in ArcGIS Pro.

polytoface.fmw

Thanks a lot Dave, worked like a charm 🙂 nice to learn this new skill.

 

 

 

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