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寻求加载大量Marker ,具有良好性能的解决方案
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Tail  
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 More options Jun 21, 1:32 am
From: Tail <jft...@gmail.com>
Date: Sat, 20 Jun 2009 22:32:38 -0700 (PDT)
Local: Sun, Jun 21 2009 1:32 am
Subject: 寻求加载大量Marker ,具有良好性能的解决方案
hi,大家好

在2009 GDD有堂课上面讲到加载大量Marker采用了一种 使用动态生成tiles的方法,http://ditu.google.cn/
前就是这样实现的,搜索后会出现很多小红点,但小红点不是Marker,而且是生成在tiles里面的。

如果采用这种方法,在server和browser端各需要做哪些事情,有这方面相关的资料和动态生成tiles的现有程序和算法吗?

thanks


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Kevin  
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 More options Jun 23, 11:02 pm
From: Kevin <kaiming....@gmail.com>
Date: Tue, 23 Jun 2009 20:02:32 -0700 (PDT)
Local: Tues, Jun 23 2009 11:02 pm
Subject: Re: 寻求加载大量Marker ,具有良好性能的解决方案
服务器端根据查询结果,把结果动态渲染成图片。在客户端叠加上这层。这样用户可以看到标注的结果,但是这些只是图片。当用户鼠标移动到这些图片上的时,
在根据鼠标位置,把该tile内的marker全部标注上。如果没有来得及标注用户就点击了,则用鼠标的坐标反查具体点击在哪个marker上。

On 6月21日, 下午1时32分, Tail <jft...@gmail.com> wrote:


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Tail  
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 More options Jun 25, 4:31 am
From: Tail <jft...@gmail.com>
Date: Thu, 25 Jun 2009 01:31:40 -0700 (PDT)
Local: Thurs, Jun 25 2009 4:31 am
Subject: Re: 寻求加载大量Marker ,具有良好性能的解决方案
谢谢 kevin,把结果动态渲染成图片,有没有相关的算法或者code.

还有个问题,动态渲染生成的某一个图片(tile),上面包含了好几Marker,实际不是真正的Marker,那么如何触发和判断是点击了哪个
Marker?

On Jun 24, 11:02 am, Kevin <kaiming....@gmail.com> wrote:


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Gavin  
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 More options Jun 25, 10:43 pm
From: Gavin <xcab...@gmail.com>
Date: Thu, 25 Jun 2009 19:43:42 -0700 (PDT)
Local: Thurs, Jun 25 2009 10:43 pm
Subject: Re: 寻求加载大量Marker ,具有良好性能的解决方案
我最近也在考虑那个东西,如果一下子全部mark到地图最好,有那方面的资料么?本来我是想在数据库中先order下,然后抽出部分,但是功能效果不是
我想要的。使用动态生成tiles的方法应该能解决我的问题。可以交流下么?我想帮本地的一个公益组织做个人事的管理页面,想全部放到google 的
map上去。

On 6月25日, 下午4时31分, Tail <jft...@gmail.com> wrote:


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Tail  
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 More options Jul 3, 8:31 pm
From: Tail <jft...@gmail.com>
Date: Fri, 3 Jul 2009 17:31:56 -0700 (PDT)
Local: Fri, Jul 3 2009 8:31 pm
Subject: Re: 寻求加载大量Marker ,具有良好性能的解决方案
我也还没有找到相关的方法,由于进度问题,先做其他的了,但这个问题得必须解决。如果有进展我会发到group里的。

On Jun 26, 10:43 am, Gavin <xcab...@gmail.com> wrote:


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徐陈  
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 More options Jul 13, 12:11 am
From: 徐陈 <xcab...@gmail.com>
Date: Mon, 13 Jul 2009 12:11:01 +0800
Local: Mon, Jul 13 2009 12:11 am
Subject: Re: 寻求加载大量Marker ,具有良好性能的解决方案

http://gmaps-utility-library-dev.googlecode.com/svn/trunk/markermanag...
这个能解决大量的marks,最近换 flex开发了,大家交流

2009/7/4 Tail <jft...@gmail.com>


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woodheadz  
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 More options Aug 5, 4:53 am
From: woodheadz <woodhe...@gmail.com>
Date: Wed, 5 Aug 2009 01:53:44 -0700 (PDT)
Local: Wed, Aug 5 2009 4:53 am
Subject: Re: 寻求加载大量Marker ,具有良好性能的解决方案
MakerManager 无法彻底解决大数据量的问题...
我最后做了一个客户端的cache对象,手工根据地图的显示区域变化缓存以及显示数据. 可惜我的cache没有以经纬度,而是以我们应用里自定义的一
个坐标系做的,没有通用性, 不然可以放上来给大家共享下

On 7月13日, 下午12时11分, 徐陈 <xcab...@gmail.com> wrote:


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Discussion subject changed to "寻求加载大量Marker ,具有良好性能的 解决方案" by map.huanglei
map.huanglei  
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 More options Aug 5, 5:29 am
From: "map.huanglei" <map.huang...@gmail.com>
Date: Wed, 5 Aug 2009 17:29:05 +0800
Local: Wed, Aug 5 2009 5:29 am
Subject: Re: Re: 寻求加载大量Marker ,具有良好性能的 解决方案

对于大数据量的东西有很好的解决方案,就是进行图片渲染,如果数据量相对比较稳定(即变化性不大),可以用缓存图片的方法,速度、效率 不是问题

2009-08-05

map.huanglei

发件人: woodheadz
发送时间: 2009-08-05  16:53:57
收件人: 谷歌地图 API 论坛
抄送:
主题: Re: 寻求加载大量Marker ,具有良好性能的 解决方案

MakerManager 无法彻底解决大数据量的问题...
我最后做了一个客户端的cache对象,手工根据地图的显示区域变化缓存以及显示数据. 可惜我的cache没有以经纬度,而是以我们应用里自定义的一
个坐标系做的,没有通用性, 不然可以放上来给大家共享下
On 7月13日, 下午12时11分, 徐陈 <xcab...@gmail.com> wrote:


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Tail  
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 More options Aug 30, 3:22 am
From: Tail <jft...@gmail.com>
Date: Sun, 30 Aug 2009 00:22:55 -0700 (PDT)
Local: Sun, Aug 30 2009 3:22 am
Subject: Re: 寻求加载大量Marker ,具有良好性能的 解决方案
如果变化性比较大,有什么好的办法。

On Aug 5, 5:29 pm, "map.huanglei" <map.huang...@gmail.com> wrote:


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