I tried the command on any simple shape, as a box, a cone, or extruded rectangle, but it seem to never succeed.
I'm using vers. 5.1.5.0, and all I get, after I selected an entity, and flatten it to zero is something like this:
----------------------------
: _FLATTEN
New UCS elevation <0.0000>: 0
1 entities flattened.
----------------------------
Though nothing changes, the entity remains 3Dimensional.
Am I wrong with any assumption?
Lou
#2
I use Cadopia Icad 4 Standard. The FLATTEN command works pretty much as advertised in the help file. A 3D object created with TABSURF generally won't flatten completely without exploding several times. Also, as the help file says, entities with strange extrusion vectors and arcs rotated away from the wcs won't flatten. Standard 3D entities like boxes, cones, etc., seem to flatten without trouble. It's possible that version 5 FLATTEN works differently or not at all, but that seems unlikely. Hopefully, someone else using that version will comment.
Re:
#3I completely agree with you that complex 3D objects like TABSURF or entities with extruded vectors and arcs can be difficult to flatten.CAD_B wrote: ↑Thu May 26, 2005 11:12 amI use Cadopia Icad 4 Standard. The FLATTEN command works pretty much as advertised in the help file. A 3D object created with TABSURF generally won't flatten completely without exploding several times. Also, snow rider 3d as the help file says, entities with strange extrusion vectors and arcs rotated away from the wcs won't flatten. Standard 3D entities like boxes, cones, etc., seem to flatten without trouble. It's possible that version 5 FLATTEN works differently or not at all, but that seems unlikely. Hopefully, someone else using that version will comment.
Re: How does 'flatten' work?
#4It seems that the flatten command isn't working because the UCS may not be aligned with the desired 2D plane. To fix this, try setting the UCS to the World or XY plane and use the `PLAN` command to ensure the view is top-down. Then, run the `FLATTEN` command on simpler 3D entities, like basic shapes. If the issue persists, ensure the object is a 3D solid and not a complex mesh. You can also try specifying a base point during the flattening process.
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