Hi Andreas,
I created a ticket:
https://github.com/openlayers/ol3/issues/89
please feel free to add to it as appropriate.
I can think of a couple of use cases that this might come in handy for:
1. one is the obvious one of something like Street View
2. another is being able to do a walk through or fly through the
environment. This could be done via user controls like look right, left,
up, down and move forward, backwards, right left. Or it could be done by
creating a path or route through the scene and then flying the camera
along the path. This might be a sequence of points in space where each
point has attributes for the camera, like azimuth, elevation, camera
angle, etc.
Thanks,
-Steve
On 12/3/2012 5:53 PM, Andreas Hocevar wrote:
Hey Steven,
the purpose of adding camera and scene support to OpenLayers 3 is indeed
2.5D views for use cases like tilting and street views. The idea is to
tilt 2D tiles and combine them with an elevation model or other
height/elevation information that is associated with the tiles. But we
will also be working on 3D vector rendering, in which case the 3D
information is used directly from the geometries, and all rendering is
done on the client.
It seems the use case that you are envisioning is to request tilted
tiles from the server, i.e. to send requests for new tiles whenever the
camera properties change, which will then get rendered on the server and
returned to the client? Is this correct? If so, let's make sure it gets
ticketed on http://github.com/openlayers/ol3, so it won't be forgotten.
Andreas.
On Mon, Dec 3, 2012 at 10:36 PM, Stephen Woodbridge
<[email protected] <mailto:[email protected]>> wrote:
Hi All,
Sorry for the cross posting. The following article which is thin on
details raise some interesting questions in my mind related to
Mapserver and OpenLayers.
http://www.zdnet.com/google-__dives-deeper-on-vector-based-__maps-with-api-update-__7000008233/?s_cid=e550
<http://www.zdnet.com/google-dives-deeper-on-vector-based-maps-with-api-update-7000008233/?s_cid=e550>
I know OpenLayers 3 is looking at potentially adding camera model to
support tilted views. Would this be a static definition to support
tiling? Or would the camera be able to be dynamically changed? This
seems a lot like Google Street View.
Has any thought been given to support for 2.5D or 3D features? Is
there a need for this?
If mapserver supported rendering orthogonal views or even a camera
view model them a guess a layer could be defined to pass that
information to mapserver to render in the same.
Mapserver devs - there was some discussion about supporting 2.5D
objections like buildings. In light of Google and Apple moving in
these directions is this an area that we should be discussing for a
future version. Should be be looking at a more flexible viewing
model like a camera model as an option.
It looks like the OGC is working on this also, google "ogc web 3d
service".
Seems like these questions should be discussed if they are not
already being discussed.
Thanks,
-Steve
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