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线,面的数据在mysql中大家都是怎么存储的?
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ylzyd12345
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Mar 1, 2010, 9:51:27 PM
3/1/10
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点很简单,使用lat,lng字段就可以了,但是线和面呢,大家是使用的字符串用,分开存贮,然后再解析后返回给前台的吗?
chenillen
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Mar 13, 2010, 10:36:53 PM
3/13/10
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我也占个位,请教一下。
@@
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Mar 15, 2010, 2:50:49 AM
3/15/10
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mysql的那个geo扩展没有线这个字段吗?
postgre的geo扩展是直接有点 线 面 这些的
没什么精度要求的话可以考虑geo encode了储存
2010/3/2 ylzyd12345
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Dorian
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Mar 19, 2010, 5:17:34 AM
3/19/10
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使用encoded polyline 之类的编码后存储。
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