Hi,
I'm currently using FME 2017.1 Smallword Edition. My problem is that I'm trying to convert Collada data to Cesium 3D-tiles and I don't know how to specify the coordinates to separate the large input data into small tiles.
The image is how I want to tile my dataset.
Here's the Collada data.http://bit.ly/2DhOxID
Is there any solution?
How to create 3D-Tile data in popular way?
If anyone knows the answer, please let me know.
Thank you very much
PA
Best answer by takashi
View original
+17
Hi @anhphanuet, I looked at the COLLADA dataset. It contains a single aggregate geometry which consists of multiple surface (Mesh) geometries, each of which seems to represent a building.
Summary: Decompose the input aggregate into individual surfaces (buildings); Create four tile areas covering all the buildings; Filter the buildings by the tile areas, then group the buildings with ID of the tiles.
However, most transformers for spatial filtering only support vector geometries, will reject 3D models including surface. A workaround I can think of is: once save the surface geometry as an attribute (GeometryExtractor), transform it to a representative point (CenterPointReplacer), perform filtering the points by the tile areas (Clipper, SpatialFilter, or PoinaOnAreaOverlayer), then restore the surface geometry from the attribute (GeometryReplacer).
See also this workflow example. In this example, you can group the buildings by "_row" and "_column" of the tiles.
Hi @anhphanuet, I looked at the COLLADA dataset. It contains a single aggregate geometry which consists of multiple surface (Mesh) geometries, each of which seems to represent a building.
Summary: Decompose the input aggregate into individual surfaces (buildings); Create four tile areas covering all the buildings; Filter the buildings by the tile areas, then group the buildings with ID of the tiles.
However, most transformers for spatial filtering only support vector geometries, will reject 3D models including surface. A workaround I can think of is: once save the surface geometry as an attribute (GeometryExtractor), transform it to a representative point (CenterPointReplacer), perform filtering the points by the tile areas (Clipper, SpatialFilter, or PoinaOnAreaOverlayer), then restore the surface geometry from the attribute (GeometryReplacer).
See also this workflow example. In this example, you can group the buildings by "_row" and "_column" of the tiles.
Thank you very much,
PA.
Hi @anhphanuet, I looked at the COLLADA dataset. It contains a single aggregate geometry which consists of multiple surface (Mesh) geometries, each of which seems to represent a building.
Summary: Decompose the input aggregate into individual surfaces (buildings); Create four tile areas covering all the buildings; Filter the buildings by the tile areas, then group the buildings with ID of the tiles.
However, most transformers for spatial filtering only support vector geometries, will reject 3D models including surface. A workaround I can think of is: once save the surface geometry as an attribute (GeometryExtractor), transform it to a representative point (CenterPointReplacer), perform filtering the points by the tile areas (Clipper, SpatialFilter, or PoinaOnAreaOverlayer), then restore the surface geometry from the attribute (GeometryReplacer).
See also this workflow example. In this example, you can group the buildings by "_row" and "_column" of the tiles.
I tried to use shapefile as the input and I changed the workspace a little bit (as the image below).
Now the problem is the ClipperTransfromer doesn't work with the Clipper and Clippee parameters.
Is there any solution for this situation?
Thank you,
PA
I attach the workspace and shapefile.fme-workspace.zip
+17
I tried to use shapefile as the input and I changed the workspace a little bit (as the image below).
Now the problem is the ClipperTransfromer doesn't work with the Clipper and Clippee parameters.
Is there any solution for this situation?
Thank you,
PA
I attach the workspace and shapefile.fme-workspace.zip
+11
@takashi, but with such a partition, the tile will not contain individual identities (in one b3dm the whole tile will be highlighted and not separate objects, and when setting the number of objects in the writer, the cesium will not be able to create the same squares of tiles) If you can tell how to fix this situation I will be very grateful.
+11
@takashi, but with such a partition, the tile will not contain individual identities (in one b3dm the whole tile will be highlighted and not separate objects, and when setting the number of objects in the writer, the cesium will not be able to create the same squares of tiles) If you can tell how to fix this situation I will be very grateful.
Hi @muzhnasto,
I'd encourage you to post a new question and link back to this one for reference for better visibility. At a glance this Q&A thread appears to be solved so it's easy to miss your new comment by accident. Thanks!
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