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静态地图的拖动问题
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wu wei
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Jan 18, 2010, 3:24:55 AM
1/18/10
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比如我在手机上显示的是中心为(31.000,117.000),尺寸为240x400,放大级别zoom=13的图片,然后我用鼠标向右拖动了40个像素距离,向上拖动了50个像素距离,请问此时要准确的显示地图,中心纬度经度的改变如何计算?
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