Model attributes (Sight Distance Overlay)
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The Sight 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 Sight Distance Overlay | First |
 |
Maplink | The attribute maplink (layer) used to select an Attribute when rasterizing a Sight Distance Overlay | None (null) |
Prequels
| Name | Prequel | Underlying data | Unit | Range | No data | Description |
|---|---|---|---|---|---|---|
| INPUT | INPUT | Sight Distance Prequel | - infinity to infinity | The Grid Overlay that provides the Sight Distance Overlay with its initial values. |
Attributes
| Icon | Attribute | Unit | Range | Description | Default value |
|---|---|---|---|---|---|
| |
DISTANCE_ZONE_M | m | The maximum distance from an Item a line-of-sight is allowed to extend. | 0 | |
 |
ATTRIBUTE_TIMEFRAMES | integer | 1 to 1000 | Amount of timeframes requested for the selected attribute.. | 1 |
 |
OBSERVER_HEIGHT_M | m | -3.4028235E38 to 3.4028235E38 | The height to which the line-of-sight is calculated. | 0 |
 |
SOURCE_HEIGHT_M | m | -3.4028235E38 to 3.4028235E38 | The height from which the line-of-sight is calculated. | 0.75 |