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51ditu的偏差?如何调整?是线性的吗?
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fup...@gmail.com
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Nov 14, 2006, 1:06:46 AM
11/14/06
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经纬度数据和实际数据有偏差,如何调整?是线性的吗?
chenchen
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Nov 14, 2006, 8:45:09 PM
11/14/06
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经纬度数据和实际数据有偏差?这里只的经纬度是指什么?实际数据又是只什么?
51地图的经纬度是由真实经纬度通过数据转换接口进行加密得到的。并不是真实的经纬度。
STBW
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Nov 14, 2006, 8:30:50 PM
11/14/06
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好象不完全是,不过一个地区的偏差都差不多,你一个地区用一个参照点就好了
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