CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Then you probably want something like this:
http://acg.cs.tau.ac.il/projects/swept-volume/ICRA.pdf

Sebastien.

On 10/9/19 5:51 PM, Alexandre Severino wrote:
> Sorry that I wasn't specific enough. I always forget to include some 
> important information.
>
> Unfortunately, it has to be both continuous along a "curved" high-res 
> polyline, and the mesh is closed.
>
> On Wed, Oct 9, 2019 at 12:33 PM Sebastien Loriot (GeometryFactory) 
> < <mailto:>> wrote:
>
>     Do you want a continuous translation or a discrete one along a polyline?
>     Is your input mesh close or open?
>
>     If the mesh is open and you consider discrete translation, you might be
>     able to use extrude_mesh() for each segment:
>
>     
> https://doc.cgal.org/latest/Polygon_mesh_processing/group__PMP__meshing__grp.html#ga102e1ba5d709c5e53e013160792e4d08
>
>     and compute the union of all segments using
>     corefine_and_compute_union():
>     
> https://doc.cgal.org/latest/Polygon_mesh_processing/group__PMP__corefinement__grp.html#gad7e1741a7ce41a5846cf86494982ca8b
>
>     Sebastien.
>
>     On 10/9/19 3:09 PM, aseverino wrote:
>      > This is probably the most unusual problem you guys ever heard of,
>     so I'll not
>      > be surprised if there is no solution for it available with any
>     combination
>      > of tools in CGAL.
>      >
>      > Remember when you had Windows 98 and the screen would freeze up
>     with an
>      > error shown in a dialog popup? Remember moving this dialog box
>     around and
>      > its canvas leaving a drawing "trail", as if it was some sort of a
>     slug?
>      >
>      > I'm trying to recreate exactly that effect, but with a 3d object.
>      >
>      > Imagine you have a not-so-primitive shape, like a 3D cross, and
>     you want to
>      > drag it around in a 3d space, in the 3 axis, leaving a trail
>     behind. The
>      > final geometry ends up being this snake-like geometry based on
>     the initial
>      > 3D cross. As if you moved a clone of the cross just a fraction of a
>      > millimeter, made an union boolean, and repeated until you have
>     the desired
>      > result.
>      >
>      > How would you do it? Considering that a boolean would take hours of
>      > processing.
>      >
>      >
>      >
>      > --
>      > Sent from: http://cgal-discuss.949826.n4.nabble.com/
>      >
>
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>
>
> --
> *Alexandre A. Severino*
> *Systems Developer and Analyst*
> *+55 11 99994-9148*
>
> Si quieres cambio verdadero, pues camina distinto!