addTIX: Add Tic marks to map

In GEOmap: Topographic and Geologic Mapping

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)




   

GEOmap documentation built on Sept. 1, 2023, 5:09 p.m.