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

[Tim Schaub]

The answer is yes, OpenLayers does support adding arbitrary attributes 
to points.  You should be looking at OpenLayers.Feature.Vector.

A point geometry doesn't have direction.  A feature is geometry plus 
attributes.  If you create a feature with a point geometry, you can 
store any arbitrary attributes along with it.

Hope that makes sense.
Tim

Stephen Woodbridge 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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>>>
>>>
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