BRL-CAD

Support Requests item #2987780, was opened at 2010-04-15 16:29
Message generated for change (Comment added) made by brlcad
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=640803&aid=2987780&group_id=105292

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: Geometry Editing
>Group: None
>Status: Pending
Resolution: None
Priority: 5
Private: No
Submitted By: Scott Hathcock (scottha)
>Assigned to: Sean Morrison (brlcad)
Summary: Nurbs and splines

Initial Comment:
Is there any way to create a set of 2d cross-sections, place them in space and create a nurb or other smooth surface across them? The sketcher appears to allow the creation of nurb lines, but I can't find a way to create a "smooth" surface. As part of this, there would need to be a way to close the surface into a solid. 

Thanks,
Scott

----------------------------------------------------------------------

>Comment By: Sean Morrison (brlcad)
Date: 2010-04-19 21:38

Message:
There is presently minimal support for 2D-centric modeling approaches
within BRL-CAD.  For the most part, even tools like the sketcher and
extrusions are more for supporting imported geometries and basic
viewing/editing.  That said, creating an "extrude" object might be what you
are looking for.

As BRL-CAD is a solid modeling system (and intentionally with minimal
explicit surface boundary representation support), you normally wouldn't
create a single surface, you create topologically closed solid 3D shapes
directly.  This can be done with extrusions, surfaces of revolution,
volumetric modeling, or the myriad of other implicit primitive shapes with
boolean operations.  It depends primarily on what you're trying to model
and for what purpose.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=640803&aid=2987780&group_id=105292

Support Requests item #2987780, was opened at 2010-04-15 16:29
Message generated for change (Comment added) made by sf-robot
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=640803&aid=2987780&group_id=105292

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: Geometry Editing
Group: None
>Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: Scott Hathcock (scottha)
Assigned to: Sean Morrison (brlcad)
Summary: Nurbs and splines

Initial Comment:
Is there any way to create a set of 2d cross-sections, place them in space and create a nurb or other smooth surface across them? The sketcher appears to allow the creation of nurb lines, but I can't find a way to create a "smooth" surface. As part of this, there would need to be a way to close the surface into a solid. 

Thanks,
Scott

----------------------------------------------------------------------

>Comment By: SourceForge Robot (sf-robot)
Date: 2010-05-04 02:21

Message:
This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 14 days (the time period specified by
the administrator of this Tracker).

----------------------------------------------------------------------

Comment By: Sean Morrison (brlcad)
Date: 2010-04-19 21:38

Message:
There is presently minimal support for 2D-centric modeling approaches
within BRL-CAD.  For the most part, even tools like the sketcher and
extrusions are more for supporting imported geometries and basic
viewing/editing.  That said, creating an "extrude" object might be what you
are looking for.

As BRL-CAD is a solid modeling system (and intentionally with minimal
explicit surface boundary representation support), you normally wouldn't
create a single surface, you create topologically closed solid 3D shapes
directly.  This can be done with extrusions, surfaces of revolution,
volumetric modeling, or the myriad of other implicit primitive shapes with
boolean operations.  It depends primarily on what you're trying to model
and for what purpose.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=640803&aid=2987780&group_id=105292

Support Requests item #2987780, was opened at 2010-04-15 16:29
Message generated for change (Settings changed) made by brlcad
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=640803&aid=2987780&group_id=105292

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: Geometry Editing
Group: None
Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: Scott Hathcock (scottha)
Assigned to: Sean Morrison (brlcad)
Summary: Nurbs and splines

Initial Comment:
Is there any way to create a set of 2d cross-sections, place them in space and create a nurb or other smooth surface across them? The sketcher appears to allow the creation of nurb lines, but I can't find a way to create a "smooth" surface. As part of this, there would need to be a way to close the surface into a solid. 

Thanks,
Scott

----------------------------------------------------------------------

Comment By: SourceForge Robot (sf-robot)
Date: 2010-05-04 02:21

Message:
This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 14 days (the time period specified by
the administrator of this Tracker).

----------------------------------------------------------------------

Comment By: Sean Morrison (brlcad)
Date: 2010-04-19 21:38

Message:
There is presently minimal support for 2D-centric modeling approaches
within BRL-CAD.  For the most part, even tools like the sketcher and
extrusions are more for supporting imported geometries and basic
viewing/editing.  That said, creating an "extrude" object might be what you
are looking for.

As BRL-CAD is a solid modeling system (and intentionally with minimal
explicit surface boundary representation support), you normally wouldn't
create a single surface, you create topologically closed solid 3D shapes
directly.  This can be done with extrusions, surfaces of revolution,
volumetric modeling, or the myriad of other implicit primitive shapes with
boolean operations.  It depends primarily on what you're trying to model
and for what purpose.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=640803&aid=2987780&group_id=105292