Limit rain (Water Overlay): Difference between revisions

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[[File:Attributes_tab_overlay.PNG|thumb|right|the attibutes tab of the water overlay and the limit area (limit rain) attribute.|200px]]
{{Overlay attributes|<onlyinclude>
{{Overlay attribute
{{Overlay attributes|type=row|overlay=Water
|attribute=LIMIT_AREA
|attribute=LIMIT_RAIN
|unit=nominal value
|unit=nominal value
|description= Whether and how calculations in the simulation should be limited to specific locations of the 3D world.
|description=Whether rainfall can be overridden by rainfall defined in rain areas across the project area.
|icon=Limit_rain.png
|defaultvalue=0 (Entire map)
}}</onlyinclude>}}
 
{{nominal list|zeroindex=true
|| '''Entire map''': Only the weather's configured rainfall is used.
|3| '''Override specified Areas''': The weather's configured rainfall  can be overridden by [[Rain area (Water Overlay)|rain areas']] [[Rain m (Water Overlay)|Rain M]] attribute.
}}
}}


There are a few modes available for the [[Water Module]], dictating where calculations are to be performed:
[[File:Wateroverlay_rainfall_areas_dynamic.gif|left|frame|Dynamic rainfall defined by 101 different rain areas, which is shown in the mini-map halfway the animation. Animation is showing the [[Last rain result type (Water Overlay)|last rain result]]]]
* '''Entire map'''. Calculations are performed across the entire map. Water can flow anywhere.
* '''Limit to Water Level Areas''' Calculations are only performed in the locations where [[water level area (Water Overlay)|water level area]]s are present.
* '''Limit to specific Areas''' Calculations are only performed in the locations where [[limitation area (Water Overlay)|limitation areas]] are present.


==Possible values==
{{article end
* 0: '''Entire map'''
|notes=
* 1: '''Limit to Water Level Areas'''
* In the ''Rain/Flood event'' step of the [[Water Overlay Wizard]], the area where the configured rain falls can be adjusted. By default, the configured rainfall is equal for each grid cell in the project area and defined by the selected [[Weather (Water Overlay)|weather]]. However, when the option ''Override specified Areas'' is chosen, the ''Rain Areas'' step is added to the wizard, which lets you configure how to identify the [[Rain area (Water Overlay)|Rain Area]]s. Rain Areas override the weather's [[Weather rain m (Water Overlay)|rainfall]] with their specific rainfall.
* 2: '''Limit to specific Areas'''
|howtos=
 
* [[How to create a Rain area]]
==Notes==
* [[How to add and remove an Attribute]]
* Despite the attribute name's implication, this setting does not only affect the location of rainfall, but ''all'' calculations.
}}
* When any limit is in effect, water can flow between valid locations, even if those locations are defined through different relevant features (e.g. 2 adjacent water level areas).
* In step 1 of the [[Water_Overlay_Wizard|water overlay wizard]], the to be calculated area can be selected. When chosen for the option Limit to specified areas, an extra step 2.6 in the wizard is added.
 
 
==How-to's==
* [[How to add a limitation area]]
* [[How-to add and remove an attribute]]


{{WaterOverlay_model_attribute_nav}}
{{WaterOverlay model attribute nav}}

Latest revision as of 12:03, 7 February 2024

0. Entire map: Only the weather's configured rainfall is used.
3. Override specified Areas: The weather's configured rainfall can be overridden by rain areas' Rain M attribute.
Dynamic rainfall defined by 101 different rain areas, which is shown in the mini-map halfway the animation. Animation is showing the last rain result

Notes

  • In the Rain/Flood event step of the Water Overlay Wizard, the area where the configured rain falls can be adjusted. By default, the configured rainfall is equal for each grid cell in the project area and defined by the selected weather. However, when the option Override specified Areas is chosen, the Rain Areas step is added to the wizard, which lets you configure how to identify the Rain Areas. Rain Areas override the weather's rainfall with their specific rainfall.

How-to's