[Qgis-user] Upsampling TIN

joolek joolek.o at gmail.com
Fri Oct 4 01:46:51 PDT 2019


Hi,
I am more interested to have a point in between rather than the triangles,
basically interpolate the data twice, to have an extra vertex between the
existing one.
J

On Fri, 4 Oct 2019 at 09:23, Luigi Pirelli <luipir at gmail.com> wrote:

> IMHO tension surface simulation for example can be an application where a
> TIN up sample could be necessary
>
> Luigi Pirelli
>
>
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> On Fri, 4 Oct 2019 at 10:14, b.j.kobben at utwente.nl <b.j.kobben at utwente.nl>
> wrote:
>
>> The main question is actually: why would you want to do that? You just
>> end up with a larger data structure (more triangles) to show exactly the
>> same surface model. You would not have any more detail, i.e the smaller
>> triangles inside the original large one would have exactly the same azimuth
>> and slope and therefore add no terrain detail...
>>
>>
>>
>> yours,
>>
>>
>>
>> --
>>
>> Barend Köbben
>>
>>
>>
>>
>>
>>
>>
>> On 04/10/2019, 09:41, "Qgis-user on behalf of joolek" <
>> qgis-user-bounces at lists.osgeo.org on behalf of joolek.o at gmail.com> wrote:
>>
>>
>>
>> Hi Experts,
>>
>>
>>
>> I've tried so many software's without success.
>>
>> Is it possible to upsample existing TIN? What I mean is for example
>> divide each triangle into two for example. Not interpolation but somehow...
>> subdivide or add more vertices between existing one?
>>
>> Thank you for all your time
>>
>> J
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