矢量数据ogr格式转shapely格式
时间: 2023-09-15 22:17:38 浏览: 201
要将矢量数据从OGR格式转换为Shapely格式,可以按照以下步骤操作:
```python
from osgeo import ogr
from shapely.geometry import shape
# 打开矢量数据
ogr_data = ogr.Open('your_data.shp')
layer = ogr_data.GetLayer()
# 创建一个空的Shapely几何集合
shapely_collection = []
# 遍历要素,并将其转换为Shapely几何对象
feature = layer.GetNextFeature()
while feature:
geometry = feature.GetGeometryRef()
shapely_geometry = shape(geometry)
shapely_collection.append(shapely_geometry)
feature = layer.GetNextFeature()
# 关闭数据源
ogr_data.Destroy()
```
在这个示例中,我们首先使用`ogr`模块打开矢量数据,并获取图层对象。然后,我们创建一个空的Shapely几何集合列表。
接下来,我们使用`GetNextFeature`方法遍历图层中的要素。在循环中,我们获取每个要素的几何对象,并使用`shape`函数将其转换为对应的Shapely几何对象。然后,我们将转换后的几何对象添加到Shapely几何集合列表中。
最后,我们关闭数据源并完成转换。
请确保你已经安装了GDAL和Shapely库,并将代码中的`your_data.shp`替换为你自己的矢量数据文件路径。
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