rcShed: calculates the viewshed alias remote control range for a...
In gisma/robubu: the rolling burning bus - whatever, it runs fine for now

Description Usage Arguments Value Author(s) Examples

viewshed analysis to derive an rough estimation of rc range.

1	rcShed(runDir,launchP,flightAlt)

`launchP`	actual launching position aka position of the RC
`flightAlt`	flight altitude
`runDir`	the choosen working directory

rcShed basically returns mask raster 0= no/poor RC signal 1=sane RC signal

Chris Reudenbach

#### Example to use rcShed for a typical uav flight
# setup GIS environ
envGIS<- initRGIS("~/proj/drone",'uniwald',"~/proj/drone/uniwald/mrbiko.tif")  
# call rcShed
rcRange<-rcShed(envGIS,launchP = c(8.692, 50.842316), flightAlt = 100, rcRange = 1000,dem="mrbiko.tif")