Display Name: Viewshed

Description: Returns polygons of visible areas for a given set of input observation points.

Category:

Help URL: https://dataappliance.arxys.com/arcgis/rest/directories/arcgisoutput/Elevation_GPServer/Elevation/Viewshed.htm

Execution Type: esriExecutionTypeAsynchronous

Parameters:

Parameter: InputPoints

Data Type: GPFeatureRecordSetLayer
Display Name Input Point Features
Description: The point features to use as the observer locations.
Direction: esriGPParameterDirectionInput
Filter:
Dependency:
Default Value:
Geometry Type: esriGeometryPoint
HasZ: false
HasM: false
Spatial Reference: 102100  (3857)  LatestVCSWkid(0)
Fields:
• OID ( type: esriFieldTypeOID, alias: OID )
• field1 ( type: esriFieldTypeSmallInteger, alias: field1 )
Features: None.


Parameter Type: esriGPParameterTypeRequired
Category:


Parameter: MaximumDistance

Data Type: GPDouble
Display Name Maximum Distance
Description: The maximum distance to calculate the viewshed.
Direction: esriGPParameterDirectionInput
Filter:
Dependency:
Default Value:
Parameter Type: esriGPParameterTypeOptional
Category:


Parameter: MaximumDistanceUnits

Data Type: GPString
Display Name Maximum Distance Units
Description: The units for the Maximum Distance parameter. The default is meters.Meters — The units are meters. This is the default.Kilometers — The units are kilometers.Feet — The units are feet.Yards — The units are yards.Miles — The units are miles.
Direction: esriGPParameterDirectionInput
Filter:
Dependency:
Default Value: Meters
Parameter Type: esriGPParameterTypeOptional
Category:
Choice List: [ Meters, Kilometers, Feet, Yards, Miles ]


Parameter: DEMResolution

Data Type: GPString
Display Name DEM Resolution
Description: The approximate spatial resolution (cell size) of the source elevation data used for the calculation. The default is 90m.The resolution keyword is an approximation of the spatial resolution of the digital elevation model. Many elevation sources are distributed with units of arc seconds, the keyword is an approximation in meters for easier understanding.FINEST — The finest units available for the extent are used.10m — The elevation source resolution is 1/3 arc second, or approximately 10 meters.24m — The elevation source is the Airbus WorldDEM4Ortho dataset at 24 meters resolution.30m — The elevation source resolution is 1 arc second, or approximately 30 meters.90m — The elevation source resolution is 3 arc second, or approximately 90 meters.
Direction: esriGPParameterDirectionInput
Filter:
Dependency:
Default Value:
Parameter Type: esriGPParameterTypeOptional
Category:
Choice List: [ FINEST, 10m, 30m, 90m ]


Parameter: ObserverHeight

Data Type: GPDouble
Display Name Observer Height
Description: The height above the surface of the observer. The default value of 1.75 meters is an average height of a person. If you are looking from an elevated location such as an observation tower or a tall building, use that height instead.
Direction: esriGPParameterDirectionInput
Filter:
Dependency:
Default Value: 1.75
Parameter Type: esriGPParameterTypeOptional
Category:


Parameter: ObserverHeightUnits

Data Type: GPString
Display Name Observer Height Units
Description: The units for the Observer Height parameter. The default is meters.Meters — The units are meters. This is the default.Kilometers — The units are kilometers.Feet — The units are feet.Yards — The units are yards.Miles — The units are miles.
Direction: esriGPParameterDirectionInput
Filter:
Dependency:
Default Value: Meters
Parameter Type: esriGPParameterTypeOptional
Category:
Choice List: [ Meters, Kilometers, Feet, Yards, Miles ]


Parameter: SurfaceOffset

Data Type: GPDouble
Display Name Surface Offset
Description: The height above the surface of the object you are trying to see. The default value is 0. If you are trying to see buildings or wind turbines use their height here.
Direction: esriGPParameterDirectionInput
Filter:
Dependency:
Default Value: 0
Parameter Type: esriGPParameterTypeOptional
Category:


Parameter: SurfaceOffsetUnits

Data Type: GPString
Display Name Surface Offset Units
Description: The units for the Surface Offset parameter. The default is meters.Meters — The units are meters. This is the default.Kilometers — The units are kilometers.Feet — The units are feet.Yards —The units are yards.Miles — The units are miles.
Direction: esriGPParameterDirectionInput
Filter:
Dependency:
Default Value: Meters
Parameter Type: esriGPParameterTypeOptional
Category:
Choice List: [ Meters, Kilometers, Feet, Yards, Miles ]


Parameter: GeneralizeViewshedPolygons

Data Type: GPBoolean
Display Name Generalize Viewshed Polygons
Description: Determine if the viewshed polygons are to be generalized or not.The viewshed calculation is based upon a raster elevation model which creates a result with stair-stepped edges. To create a more pleasing appearance and improve performance, the default behavior is to generalize the polygons. This generalization will not change the accuracy of the result for any location more than one half of the DEM's resolution.Checked — Generalizes the results. This is the default.Unchecked — No generalization of the output polygons will occur.
Direction: esriGPParameterDirectionInput
Filter:
Dependency:
Default Value: true
Parameter Type: esriGPParameterTypeOptional
Category:


Parameter: OutputViewshed

Data Type: GPFeatureRecordSetLayer
Display Name Output Viewshed
Description:
Direction: esriGPParameterDirectionOutput
Filter:
Dependency:
Default Value:
Geometry Type:
HasZ: false
HasM: false
Spatial Reference: N/A
Fields: None

Features: None.


Parameter Type: esriGPParameterTypeDerived
Category:

Supported Operations:   Submit Job

Child Resources:   Metadata