Foliage crown factor (Heat Stress Overlay): Difference between revisions

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The foliage crown factor is used to calculate the extend of foliage, which can influence the calculation of the sky view and the shade. The height of the Building multiplied by the the crown factor yields the diameter of the foliage.
The foliage crown factor is used to calculate the extent of foliage, which can influence the calculation of the sky view and the shade. The height of the Building multiplied by the crown factor yields the diameter of the foliage.


The crown factor is used because the extend of foliage itself is not generally available as geographical open data. Instead, often only the extent of tree trunks are provided.
The crown factor is used because the extent of foliage itself is not generally available as geographical open data. Instead, often only the extent of tree trunks is provided.


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* [[How to adjust the foliage height and crown factor]]
* [[How to adjust the foliage height and crown factor]]
* [[Trees and foliage tutorial]]
* [[Trees and foliage tutorial]]
|api=* [[Api session event editor building set attribute]]
* [[Api session event editor functionoverride set attribute]]
}}
}}


{{HeatOverlay model attribute nav}}
{{HeatOverlay model attribute nav}}

Latest revision as of 08:09, 14 July 2026

Icon Attribute Unit Range Description
FOLIAGE_CROWN_FACTOR ratio The ratio between the height of tree trunks and the diameter of the foliage of the tree.

The foliage crown factor is used to calculate the extent of foliage, which can influence the calculation of the sky view and the shade. The height of the Building multiplied by the crown factor yields the diameter of the foliage.

The crown factor is used because the extent of foliage itself is not generally available as geographical open data. Instead, often only the extent of tree trunks is provided.

Notes

How-to's

See also

API Endpoints

Heat Stress Module
Heat Stress Module
Tutorials
Overview
Theory
Benchmarks
Group
Model attributes
Daily average radiation • Daily average wind speed • Daily maximum temperature • Daily minimum temperature • Dates • Exclude buildings • Exclude water • Exclude foliage height m • Foliage areas • Hourly humidity • Hourly radiation • Hourly temperature • Max shadow distance • Sun altitude • Sun azimuth • Sun daily motion • Wind direction • Wind speed • Wind decline angle
Group
Building attributes
Bowen ratio • Foliage height • Foliage crown factor • Vegetation fraction
Terrain attributes
Bowen ratio •  Vegetation fraction
Area attributes
Foliage height
Group
Prequels
Building elevation • Foliage height • Terrain elevation
Related
Calculation models and formulas • Feature attributes • Model attributes • Result types


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