Model attributes (Distance Overlay)

The Distance Overlay's model calculations depend on a number of keys, properties and attributes.

Keys

Icon	Key	Unit	Range	Description	Default value
	DISTANCE_ZONE_M	m	0 to 2000.0	Attribute used to retrieve a value from one or more Layers for a specific grid cell. Grid cell value will be averaged over the selected distance.	0

Properties

Icon	Property	Description	Default value
	Rasterization	The rasterization method of a Distance Overlay	First
	Maplink	The attribute maplink (layer) used to select an Attribute when rasterizing a Distance Overlay	None (null)

Prequels

Name	Prequel	Underlying data	Unit	Range	No data	Description
INPUT	INPUT	Distance Prequel		- infinity to infinity		The Grid Overlay that provides the Distance Overlay with its initial values.

Attributes

Icon	Attribute	Unit	Range	Description	Default value
	DISTANCE_ZONE_M	m	0 to 2000.0	The maximum distance from an Item a distance zone is allowed to extend.	0
	HIT_COUNT	boolean	0 to 1	Instead of the closest distance, the Distance Overlay calculates hit counts.	1
	ATTRIBUTE_TIMEFRAMES	integer	1 to 1000	Amount of timeframes requested for the selected attribute..	1

See also

• Distance Overlay
• Attribute model (Distance Overlay)
• Grid model (Distance Overlay)