Weir height (Water Overlay): Difference between revisions

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This attribute can be defined as [[time sequence (Water Overlay)|values over time]], using an array of values defining {{time sequence interpolated}}. This allows users to more dynamically define the height used to allow or deny water flowing across.
This attribute can be defined as [[time sequence (Water Overlay)|values over time]], using an array of values defining {{time sequence start}}. This allows users to more dynamically define the height used to allow or deny water flowing across.


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* When using a dynamic WEIR_HEIGHT, a maximum of {{array max|pairs}} can be defined.
* When using a dynamic WEIR_HEIGHT, a maximum of {{array max|pairs}} can be defined.
* When using a [[Weir target level (Water Overlay)|target upstream water level]], the weir height can adjust automatically during simulation. This behavior can also be configured in combination with a dynamic weir height, but can lead to unexpected behavior. Instead for weirs with a target water level, define the weir height as a single start value.
* When using a [[Weir target level (Water Overlay)|target upstream water level]], the weir height can adjust automatically during simulation. This behavior can also be configured in combination with a dynamic weir height, but can lead to unexpected behavior. Instead for weirs with a target water level, define the weir height as a single start value.
|api=*[[Api session event editor overlay set key value]]
*[[Api session event editor building set attribute]]
*[[Api session event editor functionoverride set attribute]]
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{{WaterOverlay hydraulic structure nav}}
{{WaterOverlay hydraulic structure nav}}

Latest revision as of 12:23, 13 July 2026

Icon Key Unit Range Description Default value
WEIR_HEIGHT m + datum -10000 to 10000 The height of the weir. Water can flow past the weir when the water level exceeds the weir's height. n/a

This attribute can be defined as values over time, using an array of values defining start-time. This allows users to more dynamically define the height used to allow or deny water flowing across.

Notes

  • When using a dynamic WEIR_HEIGHT, a maximum of 10.000 values (5.000 pairs) can be defined.
  • When using a target upstream water level, the weir height can adjust automatically during simulation. This behavior can also be configured in combination with a dynamic weir height, but can lead to unexpected behavior. Instead for weirs with a target water level, define the weir height as a single start value.

See also

API Endpoints

Water Module
Water Module
Tutorials
Overview
Theory
Benchmarks
Group
Inlet
Inlet q • Inlet area • Inlet capacity •  Lower threshold •  Upper threshold • Inlet underground
Pump
Pump q •  Lower threshold •  Upper threshold • Pump angle • Pump capacity • Pump area
Culvert
Culvert diameter • Culvert rectangular height • Culvert threshold • Culvert n
Weir
Weir height • Weir width • Weir angle • Weir coefficient • Weir n • Weir target level
Sewer overflow
Sewer overflow • Sewer overflow speed
Drainage
Drainage q • Drainage datum • Drainage active • Drainage overflow threshold
Output
Object flow output • Object height output • Object datum output a • Object datum output b • Object water area output • Object width output • Weir dam output
Related
Building attributes • Hydrological features •  Terrain attributes • Model attributes • Results • Simulation data
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