[OpenLayers-Users] Animating a Polyline to Simulate Fluid Flow in a Pipeline

[Erik Uzureau]

So...
Yes, I think that a wiki page would be the best solution for sharing
this information.

Would you be able to do that for us?

you can edit the wiki directly if you log in as openlayers/openlayers or if not
you can do the cgi and get your own openlayers account. Either way is fine.

Thanks for your contribution, Bill!

Erik

ps. http://trac.openlayers.org/wiki/HowToContribute


On Wed, Aug 27, 2008 at 8:13 AM, Bill Thoen <bthoen at gisnet.com> wrote:
> Thanks Erik, that's be great.  If these ideas are useful to others I'm
> happy to share via a gallery link. It's the least I can do since I
> really appreciate being able to use the OpenLayers API in the first
> place. I usually write up notes to myself when I do one of these "code
> studies," but I can also put together a short explanation of the
> algorithms and the pros and cons of the three different approaches for
> the wiki, if you think that would be useful.
>
> - Bill Thoen
>
> Erik Uzureau wrote:
>> Hi Bill, super interesting work you've done here. Would you be
>> interested in adding a link to this site on the
>> gallery.openlayers.org page? Or can you think of another, better way
>> to share this information with people?
>>
>> I have thought it over a couple of times and I can't seem to come up
>> with any good place to plug this info
>> in... yet I feel it might be of big help to someone else down the
>> line.... I guess the best I can do is suggest
>> making a wiki tutorial for it.
>>
>> cheers!
>> e
>>
>>
>> On Sat, Aug 23, 2008 at 6:33 PM, Bill Thoen <bthoen at gisnet.com> wrote:
>>
>>> A while ago I asked a question here about how I could simulate pipeline
>>> flow in a live, animated way. A couple of you responded and gave me some
>>> ideas to try. So to do my bit to contribute to the commonwealth, I've
>>> posted a working sampler of these ideas at
>>> http://206.168.217.244/oo-js/x2.html. This page demonstrates 3 different
>>> techniques showing movement along a polyline.
>>>
>>> Also of note are 3 great circle functions in the Point.js code. They are
>>> geoDistanceTo(), geoBearingTo() and geoWaypoint(). The first calculates
>>> the great circle (shortest) distance between two points on  a sphere;
>>> the second calculates the great circle bearing between two points; and
>>> the third determines the lat/lon coordinate of a point along a great
>>> circle that is at a specified distance and bearing from a point.  The
>>> math behind these comes from Ed Williams' excellent Aviation Formulary
>>> site at http://williams.best.vwh.net/avform.htm.
>>>
>>> To anyone who actually looks into my code I apologize for its
>>> amateurishness, but I've only recently started learning OpenLayers and
>>> object-oriented JavaScript. I would appreciate any comments that would
>>> improve it, or any new ideas for animating lines.
>>>
>>> So Long, and Thanks for All the Fish,
>>>
>>> - Bill Thoen
>>> _______________________________________________
>>> Users mailing list
>>> Users at openlayers.org
>>> http://openlayers.org/mailman/listinfo/users
>>>
>>>
>>
>>
>
> _______________________________________________
> Users mailing list
> Users at openlayers.org
> http://openlayers.org/mailman/listinfo/users
>