Python3 Wgs84\gcj02\bd09\mercator\bd09mc坐标系转换与投影

最新推荐文章于 2025-03-11 17:21:44 发布

才华横溢吴道简

最新推荐文章于 2025-03-11 17:21:44 发布

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分类专栏： GIS算法 WEBGIS

本文链接：https://blog.youkuaiyun.com/sinat_41310868/article/details/113791826

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本文介绍了如何使用Python3进行Wgs84、Gcj02、Bd09以及Mercator坐标系之间的转换。提供了一个从JavaScript版本改造而来的Python实现，适用于基本的坐标转换需求。

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最基础的一组经纬度坐标转换，在网上找到过JavaScript和java版本的，但是没有找到python版本的，把JavaScript版本的改成了python版本的，能凑合用。

"""
# wgs84\gcj02\bd09坐标系转换
# wgs84\Pseudo-Mercator投影转换
# bd09\bd09mc投影转换
"""
import math
x_pi = 3.14159265358979324 * 3000.0 / 180.0
pi = 3.1415926535897932384626 # π
a = 6378245.0 # 长半轴
ee = 0.00669342162296594323 # 扁率
#百度墨卡托投影纠正矩阵
LLBAND =[75, 60, 45, 30, 15, 0]
LL2MC = [[-0.0015702102444, 111320.7020616939, 1704480524535203, -10338987376042340, 26112667856603880, -35149669176653700, 26595700718403920, -10725012454188240, 1800819912950474, 82.5],
         [0.0008277824516172526, 111320.7020463578, 647795574.6671607, -4082003173.641316, 10774905663.51142, -15171875531.51559, 12053065338.62167, -5124939663.577472, 913311935.9512032, 67.5],
         [0.00337398766765, 111320.7020202162, 4481351.045890365, -23393751.19931662, 79682215.47186455, -115964993.2797253, 97236711.15602145, -43661946.33752821, 8477230.501135234, 52.5],
         [0.00220636496208, 111320.7020209128, 51751.86112841131, 3796837.749470245, 992013.7397791013, -1221952.21711287, 1340652.697009075, -620943.6990984312, 144416.9293806241, 37.5],
         [-0.0003441963504368392, 111320.7020576856, 278.2353980772752, 2485758.690035394, 6070.750963243378, 54821.18345352118, 9540.606633304236, -2710.55326746645, 1405.483844121726, 22.5],
         [-0.0003218135878613132, 111320.7020701615, 0.00369383431289, 823725.6402795718, 0.46104986909093, 2351.343141331292, 1.58060784298199, 8.77738589078284, 0.37238884252424, 7.45]]
# 百度墨卡托转回到百度经纬度纠正矩阵
MCBAND = [12890594.86, 8362377.87, 5591021, 3481989.83, 1678043.12, 0]
MC2LL = [[1.410526172116255e-8, 0.00000898305509648872, -1.9939833816331, 200.9824383106796

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