BuildingSystems.Buildings.Geometries.Viewfactors.Functions.PhiRect

# .BuildingSystems.Buildings.Geometries.Viewfactors.Functions.PhiRect

Calculates the view factors of nRect rectangular areas

## Information

This function calculates the view factors of nRect rectangular areas.

#### Interface

>     function PhiRect
>       input Integer nRect "Number of rectangle areas";
>       input Real a1[nRect];
>       input Real a2[nRect];
>       input Real a3[nRect];
>       input Real b1[nRect];
>       input Real b2[nRect];
>       input Real b3[nRect];
>       input Real c1[nRect];
>       input Real c2[nRect];
>       input Real c3[nRect];
>       input Real d1[nRect];
>       input Real d2[nRect];
>       input Real d3[nRect];
>       input Integer r[nRect] "Normal direction of the rectangular areas";
>       input Integer z[nRect] "Number of segments";
>       input Boolean viewFacComp "true: numerical compensation of the view factors (only for closed hulls),
>            false: no numerical compensation of the view factors";
>       output Real PhiRect[nRect, nRect] "View factors for rectangular areas";
>     end PhiRect;

## Revisions

- March 9, 2022 by Christoph Nytsch-Geusen:
  First implementation.

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