Columns¶
A dataframe has columns. At minimum a geometry column.
The column object¶
Constructors¶
GeoDataFrameColumn.fromGeoJsonGeometry
¶
Build a column from parsed geojson objects
Positional parameters:
- geometry
dynamic
: a geojson geometry: either a GeoJsonPoint , a GeoJsonMultiPoint or a GeoJsonLine- columnName
String
: the name of the column
final col = GeoDataFrameColumn.fromGeoJsonGeometry(someGeoJsonObject, "myline");
print(col.dtype);
print(col.type);
GeoDataFrameColumn.inferFromDataPoint
¶
Build a column with types infered from a datapoint
Positional parameters:
- dataPoint
dynamic
: a sample of the data to check to infer types- columnName
String
: the name of the column