---
name: "glarendx"
section: "1"
platform: "linux"
package: "radiance"
version: "4R1+20120125-1+b1"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/glarendx"
---

# glarendx(1)

calculate glare index

## NAME

glarendx - calculate glare index

## SYNOPSIS

**glarendx** **-t type** \[ **-h** \] \[ **glarefile** \]

## DESCRIPTION

*Glarendx* computes the selected glare index *type* from the given *glarefile* produced by *[findglare(1)](/findglare/1.md).* *Glarendx* computes one value for each (indirect illuminance) angle in the input file. If no *glarefile* is given, *glarendx* reads from the standard input. The *-h* option can be used to remove the information header from the output.

*Glarendx* understands the following arguments for *type:*

```
	    guth_vcp	Guth Visual Comfort Probability
	     cie_cgi	CIE Glare Index (Einhorn)
	         ugr	Unified Glare Rating
	      brs_gi	BRS Glare Index
	         dgi	Daylight Glare Index
	    guth_dgr	Guth Disability Glare Rating
	    vert_dir	Direct Vertical Illuminance
	    vert_ill	Total Vertical Illuminance
	    vert_ind	Indirect Vertical Illuminance
```

Alternatively, a symbolic or hard link to the program with any of the above names may be used in place of the *type* argument.

## AUTHORS

Greg Ward, Raphael Compagnon

## ACKNOWLEDGEMENT

Work on this program was initiated and sponsored by the LESO group at EPFL in Switzerland.

## SEE ALSO

[findglare(1)](/findglare/1.md), [glare(1)](/glare/1.md), [igraph(1)](/igraph/1.md), [rpict(1)](/rpict/1.md), [xglaresrc(1)](/xglaresrc/1.md), [ximage(1)](/ximage/1.md)