arcgis.features.manage_data module¶

These functions are used for both the day-to-day management of geographic data and for combining data prior to analysis.

dissolve_boundaries merges together areas that share a common boundary and a common attribute value. extract_data creates new datasets by extracting features from your existing data. merge_layers copies all the features from two or more existing layers into a new layer. overlay_layers combines two or more layers into one single layer. You can think of overlay as peering through a stack of maps and creating a single map containing all the information found in the stack.

dissolve_boundaries¶

manage_data.dissolve_boundaries(input_layer, dissolve_fields=[], summary_fields=[], output_name=None, context=None, gis=None)¶

Dissolve features based on specified fields.

input_layer : Required layer (see Feature Input in documentation): The layer containing polygon features that will be dissolved.
dissolve_fields : Optional list of strings: One or more fields from the input that control which polygons are merged. If no fields are supplied, all polygons that overlap or shared a common border will be dissolved into one polygon.
summary_fields : Optional list of strings: A list of field names and statistical types that will be used to summarize the output. Supported statistics include: Sum, Mean, Min, Max, and Stddev.
output_name : Optional string: Additional properties such as output feature service name.
context : Optional string: Additional settings such as processing extent and output spatial reference.
gis :: Optional, the GIS on which this tool runs. If not specified, the active GIS is used.

dissolved_layer : layer (FeatureCollection)

extract_data¶

manage_data.extract_data(input_layers, extent=None, clip=False, data_format=None, output_name=None, context=None, gis=None)¶

Select and download data for a specified area of interest. Layers that you select will be added to a zip file or layer package.

input_layers : Required list of strings: The layers from which you can extract features.
extent : Optional string: The area that defines which features will be included in the output zip file or layer package.
clip : Optional bool: Select features that intersect the extent or clip features within the extent.
data_format : Optional string: Format of the data that will be extracted and downloaded. Layer packages will always include file geodatabases.
output_name : Optional string: Additional properties such as output feature service name.
context : Optional string: Additional settings such as processing extent and output spatial reference.
gis :: Optional, the GIS on which this tool runs. If not specified, the active GIS is used.

content_id : layer (FeatureCollection)

merge_layers¶

manage_data.merge_layers(input_layer, merge_layer, merging_attributes=[], output_name=None, context=None, gis=None)¶

Combines two inputs of the same feature data type into a new output.

input_layer : Required layer (see Feature Input in documentation): The point, line, or polygon features to merge with the mergeLayer.
merge_layer : Required layer (see Feature Input in documentation): The point, line or polygon features to merge with inputLayer. mergeLayer must contain the same feature type point, line, or polygon) as the inputLayer.
merging_attributes : Optional list of strings: An array of values that describe how fields from the mergeLayer are to be modified. By default all fields from both inputs will be carried across to the output.
output_name : Optional string: Additional properties such as output feature service name.
context : Optional string: Additional settings such as processing extent and output spatial reference.
gis :: Optional, the GIS on which this tool runs. If not specified, the active GIS is used.

merged_layer : layer (FeatureCollection)

overlay_layers¶

manage_data.overlay_layers(input_layer, overlay_layer, overlay_type=’Intersect’, snap_to_input=False, output_type=’Input’, tolerance=None, output_name=None, context=None, gis=None)¶

Overlays the input layer with the overlay layer. Overlay operations supported are Intersect, Union, and Erase.

input_layer : Required layer (see Feature Input in documentation): The input analysis layer.
overlay_layer : Required layer (see Feature Input in documentation): The layer to be overlaid with the analysis layer.
overlay_type : Optional string: The overlay type (INTERSECT, UNION, or ERASE) defines how the analysis layer and the overlay layer are combined.
snap_to_input : Optional bool: When the distance between features is less than the tolerance, the features in the overlay layer will snap to the features in the input layer.
output_type : Optional string: The type of intersection (INPUT, LINE, POINT).
tolerance : Optional float: The minimum distance separating all feature coordinates (nodes and vertices) as well as the distance a coordinate can move in X or Y (or both).
output_name : Optional string: Additional properties such as output feature service name.
context : Optional string: Additional settings such as processing extent and output spatial reference.
gis :: Optional, the GIS on which this tool runs. If not specified, the active GIS is used.

output_layer : layer (FeatureCollection)