Resumen
Converts Esri JSON or GeoJSON to ArcPy geometry or feature set objects. GeoJSON is a geospatial data interchange format for encoding geographic data structures.
Debate
Nota:
AsShape does not support GeoJSON coordinate reference system objects; the spatial reference of a geometry object created from GeoJSON will be Unknown.
Sintaxis
AsShape (geojson_struct, {esri_json})| Parámetro | Explicación | Tipo de datos |
geojson_struct | The geojson_struct includes type and coordinates. The following strings are included for type: Point, LineString, Polygon, MultiPoint, and MultiLineString. | Dictionary |
esri_json | Sets whether the input JSON is evaluated as Esri JSON or GeoJSON. If True, the input is evaluated as Esri JSON. (El valor predeterminado es False) | Boolean |
| Tipo de datos | Explicación |
| Geometry | AsShape returns a geometry object (PointGeometry, Multipoint, Polyline, or Polygon) based on the input GeoJSON or Esri JSON object. If the Esri JSON is a feature set, AsShape will return a FeatureSet. ArcGIS REST API specification defines feature set as a collection of features with a specific geometry type, fields, and a spatial reference. The JSON to Features tool can be used to convert Esri JSON directly into a feature class. |
Muestra de código
Create a PointGeometry object using a GeoJSON object.
import arcpy
geojson_point = {
"type": "Point",
"coordinates": [5.0, 5.0]}
point = arcpy.AsShape(geojson_point)Create a PointGeometry object using an Esri JSON object.
import arcpy
esri_json = {
"x": -122.65,
"y": 45.53,
"spatialReference": {
"wkid": 4326}}
# Set the second parameter to True to use an esri JSON
point = arcpy.AsShape(esri_json, True)Create a Multipoint object using a GeoJSON object.
import arcpy
geojson_multipoint = {
"type": "MultiPoint",
"coordinates": [[5.0, 4.0], [8.0, 7.0]]}
multipoint = arcpy.AsShape(geojson_multipoint)Create a Multipoint object using an Esri JSON object.
import arcpy
esri_json = {
"points" : [
[-97.06138, 32.837],
[-97.06133, 32.836],
[-97.06124, 32.834],
[-97.06127, 32.832]],
"spatialReference" : {"wkid" : 4326}}
# Set the second parameter to True to use an esri JSON
multipoint = arcpy.AsShape(esri_json, True)Create a Polyline object using a GeoJSON object.
import arcpy
geojson_linestring = {
"type": "LineString",
"coordinates": [[5.0, 4.0], [8.0, 7.0]]}
polyline = arcpy.AsShape(geojson_linestring)Create a Polyline object using an Esri JSON object.
import arcpy
esri_json = {
"paths" : [
[[-97.08, 32.8], [-97.05, 32.6], [-97.06, 32.7],
[-97.07, 32.6]],
[[-97.4, 32.5], [-97.2, 32.75]]],
"spatialReference" : {"wkid" : 4326}}
# Set the second parameter to True to use an esri JSON
polyline = arcpy.AsShape(esri_json, True)Create a multipart Polyline object using a GeoJSON object.
import arcpy
geojson_multilinestring = {
"type": "MultiLineString",
"coordinates": [
[[5.0, 4.0], [8.0, 7.0]],
[[4.0, 5.0], [7.0, 8.0]]]}
polyline = arcpy.AsShape(geojson_multilinestring)Create a Polygon object using a GeoJSON object.
import arcpy
geojson_polygon = {
"type": "Polygon",
"coordinates": [
[[10.0, 0.0], [20.0, 0.0], [20.0, 10.0], [10.0, 10.0],
[10.0, 0.0]]]}
polygon = arcpy.AsShape(geojson_polygon)Create a Polygon with a hole object using a GeoJSON object.
import arcpy
geojson_polygon = {
"type": "Polygon",
"coordinates": [
[[10.0, 0.0], [20.0, 0.0], [20.0, 10.0], [10.0, 10.0],
[10.0, 0.0]],
[[12.0, 2.0], [18.0, 2.0], [18.0, 8.0], [12.0, 8.0],
[12.0, 2.0]]]}
polygon = arcpy.AsShape(geojson_polygon)