坐标距离¶
火星坐标系互转¶
坐标互转方法¶
TransBigData包提供了GCJ02,BD09,BD09mc,WGS94坐标系互转。
-
transbigdata.
gcj02tobd09
(lng, lat)¶
-
transbigdata.
bd09togcj02
(bd_lon, bd_lat)¶
-
transbigdata.
wgs84togcj02
(lng, lat)¶
-
transbigdata.
gcj02towgs84
(lng, lat)¶
-
transbigdata.
wgs84tobd09
(lon, lat)¶
-
transbigdata.
bd09towgs84
(lon, lat)¶
-
transbigdata.
bd09mctobd09
(lon, lat)¶
坐标互转,基于numpy列运算:
data['Lng'],data['Lat'] = tbd.wgs84tobd09(data['Lng'],data['Lat'])
data['Lng'],data['Lat'] = tbd.wgs84togcj02(data['Lng'],data['Lat'])
data['Lng'],data['Lat'] = tbd.gcj02tobd09(data['Lng'],data['Lat'])
data['Lng'],data['Lat'] = tbd.gcj02towgs84(data['Lng'],data['Lat'])
data['Lng'],data['Lat'] = tbd.bd09togcj02(data['Lng'],data['Lat'])
data['Lng'],data['Lat'] = tbd.bd09towgs84(data['Lng'],data['Lat'])
data['Lng'],data['Lat'] = tbd.bd09mctobd09(data['Lng'],data['Lat'])
对地理要素转换坐标¶
-
transbigdata.
transform_shape
(gdf, method)¶
输入地理要素的GeoDataFrame,对整体做坐标转换
输入
- gdfGeoDataFrame
地理要素
- methodfunction
坐标转换函数
输出
- gdfGeoDataFrame
转换后结果
#读取线要素
import geopandas as gpd
Centerline = gpd.read_file(r'test_lines.json')
Centerline.plot()

#整体进行坐标转换
import transbigdata as tbd
Centerline_transformed = tbd.transform_shape(Centerline,tbd.bd09towgs84)
Centerline_transformed.plot()

经纬度计算距离¶
-
transbigdata.
getdistance
(lon1, lat1, lon2, lat2)¶
按经度1,纬度1,经度2,纬度2 (十进制度数)顺序输入起终点经纬度,为DataFrame的列,获取距离(米),基于numpy列运算:
data['distance'] = tbd.getdistance(data['Lng1'],data['Lat1'], data['Lng2'],data['Lat2'])