Created
August 7, 2015 21:49
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Merge files within a directory when the ending of the filename matches a given string. Uses geopandas.
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| def concat_spatial_df(folder_to_search, ends_with=".shp"): | |
| """ | |
| Merge spatial data layers that meet the ending provided by ends_with and within | |
| folder folder_to_search and it's children | |
| import os | |
| import pandas as pd | |
| import geopandas | |
| """ | |
| # Find files to merge | |
| shps_to_join = list() | |
| for root, dirs, files in os.walk(folder_to_search, topdown=False): | |
| for fn in files: | |
| if fn.endswith(ends_with): | |
| shps_to_join.append(os.path.abspath(os.path.join(folder_to_search, fn))) | |
| # Merge all xsection shapefiles into one. | |
| crs = None | |
| dfs_to_join = list() | |
| for fn in shps_to_join: | |
| df = geopandas.GeoDataFrame.from_file(fn) | |
| crs = df.crs | |
| dfs_to_join.append(df) | |
| merged_df = geopandas.GeoDataFrame(pd.concat(dfs_to_join), crs=crs) | |
| return merged_df |
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