plot_GVA_1301-13_LV03_visibility.sh
5fbf2f59e661master

plot_GVA_1301-13_LV03_visibility.sh
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			#!/bin/bash

			################## USER SETTINGS ##############

			WORKDIR=/scratch/walch/grassgis/workdir
			PLOTDIR=/scratch/walch/grassgis/canvas

			LOCATION=GVA_1301-13_LV03

			VISIBILITY=$1 # visibility threshold in percent
			METHOD=$2 # choose from COMBI, HORIZON, RELIEF

			RESOLUTION=20

			###############################################

			# Layer names
			ELEVATION=DOM_2m
			ROOFTOP_MASK=SON_raster

			## Set region
			g.region raster=$ELEVATION
			REGION=current

			# Open canvas for plotting
			d.mon start=png resolution=$RESOLUTION output=$PLOTDIR\/$METHOD\_examples.png --overwrite

			# Declare expression and create visibility map
			SOURCE_MAP=$METHOD\_MEAN
			TARGET_MAP=$METHOD\_VIS_$VISIBILITY

			EXPRESSION="$TARGET_MAP = (($SOURCE_MAP100)>$VISIBILITY)$SOURCE_MAP"
			r.mapcalc expression="$EXPRESSION" region=$REGION

			# set colors of maps to plot
			r.colors map=$ELEVATION color=grey
			r.colors map=$TARGET_MAP color=viridis

			d.erase; d.rast $ELEVATION; d.rast $TARGET_MAP ; d.legend -s $TARGET_MAP

			d.mon stop=png