[OpenLayers-Users] a whole LOT of points!

[Max Demars]

I imagine a sort of asynchronous streaming of json (maybe vectiles) in
combination of clustering strategies could work,

However I cannot give any example of this, but I dont think that would be
that hard to develop.

--Max Demars

On Sun, Jan 25, 2015 at 4:27 PM, Stephen Woodbridge <woodbri at swoodbridge.com
> wrote:

> On 1/25/2015 4:03 PM, Phil Scadden wrote:
>
>> On 24/01/2015 11:01 a.m., zach cruise wrote:
>>
>>> any real world ideas?
>>>
>> In real world, processing a million points in a browser doesnt happen.
>> JS is slow, download time is slow, execution environment in a browser is
>> extremely limited. (in my experience, doing more than 1000 points of
>> geometry is unacceptably slow in single threaded). Easiest approach for
>> doing this in a browser begins with figuring how not to have vector
>> data. If this is an offline application, you want to look at local
>> server or local database. If you want to go extreme, then maybe look at
>> html5 web worker api to go multithreaded but I suspect you are up for
>> some pretty major rewrites of OL.
>>
>
> I would concur with this.
> What is the basis for the requirement to do all this in the browser?
> Is it an online or offline application?
> If offline is there any reason you can not have a local database and
> server on the offline machine?
>
> What is the user going to be trying to do with all these point?
>
> If you have a million points, they can't all be displayed on the screen at
> the same time or I would expect that they would all overlap to the point
> that you would be hard pressed to display them all in a useful manner where
> the user could differentiate them.
>
> If you are displaying a subset then why not load just the ones you need?
> using something like the bounding box strategy.
>
> I think you need to provide more information about what and how you plan
> to use this before people can give you better advice.
>
> -Steve w
>
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