[x3d-public] x3d-public Digest, Vol 81, Issue 8

[Leonard Daly]

Clement,

I am not sure exactly what kind of navigation you need to have. It seems 
a little excessive (to me), to give up all of the geometry and texture 
management that a declarative 3D environment provide just because the 
built-ion navigation is not exactly what you need.

The X3D specification include basic navigation for the environments that 
were in use at the time. Geospatial environment were not in use then. 
Perhaps X3D navigation should have been expanded for Geospatial, but for 
a number of reasons it was not.

It is possible to build custom navigation for X3D on top of the basic 
functionality. If the desired navigation is too complex to build it on 
top of existing capabilities, then a new navigation capability can be 
added to the X3DOM code -- probably with about as much work as would 
take to add it to three.js.

Can you described in detail what you want your navigation to do?

For example: On left button down, the use should travel at current 
elevation about the surface on a great circle in the indicated direction.


Leonard Daly




> Does cobweb will provide a navigation not in specifications but able
> to decently navigate around a planet?
>
> I'm working with x3dom for some times but I'm going to migrate to
> three.js just because of navigation issues... :-(
>
> Clement.
>
> On Wed, Dec 2, 2015 at 9:38 PM, Andreas Plesch <andreasplesch at gmail.com> wrote:
>> Hi Cris,
>>
>> try the developer version of x3dom. There have been improvements to the
>> triangulatisation of concave polygons in the last couple of weeks.
>>
>> When I view your x3d here
>>
>> http://andreasplesch.github.io/Library/Viewer/x3dweb.html
>>
>> it works fine in x3dom but has some problems in cobweb.
>>
>> Be careful when pasting in the scene to not cut numbers in the long lines in
>> half by line breaks (happened to me first).
>>
>> Hope this helps,
>>
>> -Andreas
>>
>>
>>> Message: 1
>>> Date: Wed, 2 Dec 2015 16:21:52 +0100
>>> From: Cris Lacumba <cris.lacumba at gmail.com>
>>> To: Leonard Daly <Leonard.Daly at realism.com>
>>> Cc: x3dom mlist <x3dom-users at lists.sourceforge.net>,
>>>          x3d-public at web3d.org
>>> Subject: Re: [x3d-public] 3D wrong visualization
>>> Message-ID:
>>>
>>> <CAF3UkD5-AEkKia5Y8Jc9Vt1FM0TFTpARGGKSRhKvjBMv9HRYHQ at mail.gmail.com>
>>> Content-Type: text/plain; charset="utf-8"
>>>
>>> Sure,
>>>
>>> I have attached it.
>>>
>>> Thanks in advance
>>>
>>> 2015-12-02 16:13 GMT+01:00 Leonard Daly <Leonard.Daly at realism.com>:
>>>
>>>> Cris,
>>>>
>>>> Is it possible to post the X3D file(s)? It's difficult for me to tell if
>>>> there is geometry coordinate round-off errors or something else.
>>>>
>>>>
>>>> Leonard Daly
>>>>
>>>>
>>>>
>>>> Hi all,
>>>>
>>>> I'm visualizing some polygons in X3DOM and they are not correctly
>>>> visualized.
>>>> In InstantReality (black background) is correctly visualized, however,
>>>> in
>>>> X3DOM I get an incorrect visualization.
>>>>
>>>> Is there some solution?
>>>>
>>>> Thanks in advance
>>>>
>>>> Best regards
>>
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-- 
*Leonard Daly*
3D Systems & Cloud Consultant
X3D Co-Chair on Sabbatical
LA ACM SIGGRAPH Chair
President, Daly Realism - /Creating the Future/
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