[vtkusers] TIN to regular mesh

[Bill Lorensen]

You could create a volume of distances to the triangles. The distance field
will have regular spacing in x,y,z but the x,y,z value will be distance to
the surface.

Are you trying to compute something? Maybe if we know what the final
problem is we can provide some ideas.



On Thu, Apr 11, 2013 at 8:54 AM, Marc Huber <marchuber.hft at gmx.de> wrote:

> unfortunatelly not. I need it and hoped that vtk is able to do this.
> I have to iterate through point clouds with a regular spacing like
> iterating through pixels of an image. So in fact I don't even need te
> visualization, just the point cloud extracted from the visualization.
>
> thanks for your help
>
> Best regards
> Marc
>
>
> *Gesendet:* Donnerstag, 11. April 2013 um 14:45 Uhr
>
> *Von:* "Bill Lorensen" <bill.lorensen at gmail.com>
> *An:* "Marc Huber" <marchuber.hft at gmx.de>
> *Cc:* "VTK Users" <vtkusers at vtk.org>
> *Betreff:* Re: Re: [vtkusers] TIN to regular mesh
>  I don't know of a vtk filter that does this.
>
> Do you have a reference for an algorithm that does this?
>
>
> On Thu, Apr 11, 2013 at 8:43 AM, Marc Huber <marchuber.hft at gmx.de> wrote:
>>
>>
>> Sorry for leaving so much unclear.
>> I have closed volumes e.g. a CAD model of a pipe
>>
>> Best regards
>> Marc Huber
>>
>>
>> *Gesendet:* Donnerstag, 11. April 2013 um 14:22 Uhr
>> *Von:* "Bill Lorensen" <bill.lorensen at gmail.com>
>> *An:* "Marc Huber" <marchuber.hft at gmx.de>
>> *Cc:* "VTK Users" <vtkusers at vtk.org>
>> *Betreff:* Re: [vtkusers] TIN to regular mesh
>>   What source of object is being modeled? Is it a closed volume? An
>> elevation map?
>>
>> On Thu, Apr 11, 2013 at 2:09 AM, Marc Huber <marchuber.hft at gmx.de>wrote:
>>>
>>>  I need a quad mesh where the point distance in x and y direction is
>>> always the same.
>>>
>>> Best regards
>>> Marc
>>>
>>>
>>> Am 10.04.2013 um 21:52 schrieb Bill Lorensen <bill.lorensen at gmail.com>:
>>>
>>>
>>>  What is your definition of "regular mesh"? A regular triangular mesh
>>> is one where each element has 3 edges and the valence of each interior
>>> point is 6. A regular quad mesh is one where each element has 4 edges and
>>> the valens of interior points is 4.
>>>
>>>
>>>
>>> On Wed, Apr 10, 2013 at 11:50 AM, Marc Huber <marchuber.hft at gmx.de>wrote:
>>>>
>>>>   Hi,
>>>>
>>>> I have a CAD model, which is triangulated. What I'd like to do is to
>>>> create a regular mesh of it.
>>>> I already searched in the archives and found out that it might help to
>>>> use shepard. I awfully don't get it managed to solve this problem. Maybe
>>>> I’m also just searching with the wrong keywords.
>>>> Has maybe somebody some example code for this? (if c++, tcl, python,...
>>>> doesn't matter)
>>>>
>>>> I'd be very thankful if anybody could help me.
>>>>
>>>>  Best regards
>>>> Marc
>>>>
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>>>
>>>
>>>
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>>>
>>
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>
>
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