[OpenLayers-Users] Does OpenLayers support orientation of points?

[Erik Uzureau]

All good points. I didn't mean for my email to sound like a closed
door... My initial reaction was just that it's not something we'd want
in the core Pixel/Point object, but would make sense as a subclass.

Although maybe I'm wrong and it *would* be worth adding directly to Pixel/Point?

I'm far from an expert on GIS matters, so please always second-guess
me on things like this, I'm grateful for the feedback :-)


Erik




On 7/11/07, Stephen Woodbridge <woodbri at swoodbridge.com> wrote:
> Erik,
>
> I can think of a few use cases that would fit OpenLayers for this feature:
>
> 1) photo with direction of camera indicated as Tom mentioned.
> 2) GPS tracking, showing a vehicle symbol with the orientation of the
> symbol aligned to the direction of travel
> 3) animating a car driving over a route and keeping it oriented to the road
> 4) Showing symbols for wind force and direction, these need to be
> oriented with the direction of the wind and might be served via WFS.
> Currently there are some mapserver users doing this in mapserver, but
> they might want a more interactive model to work with.
>
> These are just few that come to mind off the top of my head, I'm sure
> there are others, so don't discount this feature too fast.
>
> -Steve W.
>
> Erik Uzureau wrote:
> > Hi Tom,
> >
> > The feature you're suggesting doesn't sounds like something that would
> > fit the general use case for OpenLayers, but as you say in the end of
> > your mail, it would be *very* simple to add that functionality by
> > extending the Point class.
> >
> > Let us know if you need help doing that.
> >
> > Erik
> >
> >
> >
> > On 7/11/07, Tom (JDi Solutions) <tom.dean at jdi-solutions.co.uk> wrote:
> >> All,
> >>
> >> The docs appear to show that Geometry.Point (
> >> http://dev.openlayers.org/docs/OpenLayers/Geometry/Point.html)
> >> only supports a basic x and y with no direction.  I ask because we're going
> >> to be implementing an image library which could include the location from
> >> which the image was taken and also the direction the camera was facing (2d
> >> only!)
> >>
> >> If this feature does not already exist is there any call for it?  It's not
> >> an urgent requirement for us but I guess it could be done fairly easily by
> >> extending the Point class?
> >>
> >> regards,
> >>
> >> Tom
> >>
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