coordtransform - 提供了百度坐标(BD09)、国测局坐标(火星坐标,GCJ02)、和WGS84坐标系之间的转换

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提供了百度坐标(BD09)、国测局坐标(火星坐标,GCJ02)、和WGS84坐标系之间的转换

http://wandergis.github.io/coordtransform
https://github.com/wandergis/coordtransform

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