addTIX {GEOmap}R Documentation

Add Tic marks to map

Description

Add Tic marks to map

Usage

addTIX(lats, lons, PROJ = list(), PMAT = NULL, col = gray(0.7), TICS = c(1, 1), OUTER = TRUE, sides = c(1, 2, 3, 4))

Arguments

lats Latitudes in Degrees
lons Longitude in Degrees
PROJ Map Projection list
PMAT Perspective matrix conversion
col color
TICS tic labels
OUTER logical
sides sides, 1,2,3,4

Details

attempts to make correct default values

Value

Graphical Side Effects

Author(s)

Jonathan M. Lees<jonathan.lees.edu>

See Also

addLLXY

Examples


##########3  this program is run internally

PLOC=list(LON=c(137.008, 141.000),
LAT=c(34.000, 36.992),
x=c(137.008, 141.000),
y=c(34.000, 36.992))

PROJ = setPROJ(type=2, LAT0=mean(PLOC$y) , LON0=mean(PLOC$x) )

gxy = GLOB.XY(PLOC$LAT, PLOC$LON, PROJ)

PLAT =  pretty(PLOC$LAT)

PLAT = c(min(PLOC$LAT),PLAT[PLAT>min(PLOC$LAT)&PLAT<max(PLOC$LAT)],max(PLOC$LAT)) 

PLON  = pretty(PLOC$LON)

PLON = c(min(PLOC$LON), PLON[PLON>min(PLOC$LON)&PLON<max(PLOC$LON)], max(PLOC$LON))
     

plot(gxy$x, gxy$y,  asp=TRUE)

 addTIX(PLAT, PLON, PMAT=NULL, col='red', TICS=c(.1,.1), PROJ=PROJ)



   


[Package GEOmap version 1.4-0 Index]