Maximum number of Markers in a map

[Albert Arul Prakash Rajendran]

Hi All,

What is the maximum number of markers we can place in google Maps. I understand from dev ref that there is no such restriction, however more number of markers will make the view look bad.

What is the optimal number of markers in a map size of 778x640 with zoom level 13.

thanks

--
with luv,
Albert Arul Prakash
http://www.bepenfriends.com/ a free online dating web site
There are only 3 colors, 10 digits, 26 letters, 7 notes and 118 elements; its what we do with them that's important.

[Rossko]

> What is the optimal number of markers in a map size of 778x640 with zoom
> level 13.

Performance degrades as markers are added. Some browsers and devices
do better than others. Acceptable performance is completely
subjective, if you will be having a lot of interaction with the map
your requirement may be more stringent than if it were a fairly static
display. So it's your decision. Most folk seem to feel that more
than a couple of hundred is unacceptable.

Visible clutter on the map increases as you place more markers, the
user is less able to take in the information at a glance. Small maps
and/or large or varied marker icons may exaggerate the problem. It's
subjective, so that's your decision.

[geoco...@gmail.com]

On Feb 20, 4:50 pm, Albert Arul Prakash Rajendran

<albertarulprak...@gmail.com> wrote:
> Hi All,
>
> What is the maximum number of markers we can place in google Maps. I
> understand from dev ref that there is no such restriction, however more
> number of markers will make the view look bad.
>
> What is the optimal number of markers in a map size of 778x640 with zoom
> level 13.

Depends on your performance requirements and the browser being used.
As you discovered, there is no specific limit.

-- Larry

>
> thanks
>
> --
> with luv,
> Albert Arul Prakashhttp://www.bepenfriends.com/a free online dating web site

[Albert Arul Prakash Rajendran]

i am creating a twitter map which displays the markers when the twit status is updated.The application is kind of like that.

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[Thoern]

next generation browsers use GPU hardware to render graphics in the
browsers.
If you have xp try the firefox v4.0 beta if you have alot af markers
big difference (if you have some HP in the graphics card)
Also W7 ie 9 and new the new chrome to come I beleve.

[Martin Matysiak]

In addition to the previous posts it also depends on the type of marker that you use. The default google.maps.Marker has a lot of function but also a relatively complex structure which takes more processing power to render. In contrast to that there is a variety of lightweight markers which are - as the name might suggest - lighter and thus more of them can be shown simutaneously. 

But as a general rule you should try avoiding overlapping markers. The more marker overlap, the less a user can distinguish between them which leads to a bad overall experience.

Regards,

  Martin Matysiak

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