Hi All


 Have something to say while looking through these chain of mails regarding the 
mesh healing. In this part of the project are we dealing only with "healing the 
mesh". Today While going through the export options in SmartPlant SP3d piping 
and equipment module found that, following is set in the export options. 



Data Tab (IFC Export Options Dialog Box) 

Specifies the properties for the format and accuracy of the data contained in 
the export file.



Boundary Representation (Brep) - Objects are represented by a series of faces 
and how they are stitched together. For example, a design solid is exported as 
one object with a series of faces.



Constructive Solid Geometry (CSG) - Objects are represented by a series of 
solids (cylinders, cubes, and so forth) that are constructed to create the 
entire solid.



Include Openings - Select to create an individual ifcOpeningEntry object for 
each opening in the export set. If you clear Include Openings, the software 
does not create an individual icfOpeningEntry objects, but their results is 
included in the export file. 



Openings on a separate layers - Select to place each opening on an openings 
layer in the export file. If you clear this option, each opening is on the same 
layer as the entity it cuts. This option is only available if you check Include 
Openings check box.



Include Object's Range - Select to include the overall range of an entity in 
addition to the geometry of each of their components. In general, the entities 
do not have representation (footings and foundations).



Tessellation or Stroking Tolerance - Specifies the accuracy to use when 
tessellating nonplanar surfaces or stroking nonlinear curves.



Similary there is export options for structural steel.



All this I wrote is just to enquire how we are planning to import the project 
from a particular software.



Please bear with me if it sounds silly.



REgards



Santosh Dey











On Tue, 24 May 2016 00:40:25 +0530 Rakshika Bagavathy  wrote

>Daniel,

Yes, that was what i wanted to know.

I'm thinking we can convert both the native mesh types to the DCEL, and use 
that for the healing process and storing as well. That will simplify my 
conversion process and the healing process a lot. For example, I'd need to 
check for free edges (those on the boundary). Implementing it from the abstract 
classes method will be tough. More so for the OpenSCAD structure PolySet. So, 
if we could just convert everything to the DCEL, everything's going to become a 
lot easier. For free edges, we could just check if the twin's face has it's 
pointer to a half-edge set to NULL. 

Is this alright?

Rakshika.

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Mobile security can be enabling, not merely restricting. Employees who
bring their own devices (BYOD) to work are irked by the imposition of MDM
restrictions. Mobile Device Manager Plus allows you to control only the
apps on BYO-devices by containerizing them, leaving personal data untouched!
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