GEOmap (version 1.6-09)

DOTOPOMAPI: Do Interactive world Topography

Description

Interactive selction and plotting of world topography

Usage

DOTOPOMAPI(TOPO = TOPO, themap = NULL, shiftlon = 0, ALOC = NULL, DOCONT = TRUE, DOIMG = TRUE, PNTS = NULL, PCOL = "red", PCH = 1, PCEX = 1, PS = FALSE, MAPPATH = NULL, polybase = NULL, USAmap = NULL, usacity = NULL, worldcity = NULL)

Arguments

TOPO

Topographic structure

themap

Map structure

shiftlon

rotation of map in Longitude

ALOC

previously set target

DOCONT

logical, TRUE=add contour

DOIMG

logical, TRUE=add contour

PNTS

Plot set of points on map

PCOL

color palette

PCH

plotting character

PCEX

character expansion

PS

logical, TRUE=make postscript

MAPPATH

path to map data base files

polybase

polygon structure for continents

USAmap

USA detailed map structure

usacity

list of USA cities with population

worldcity

list of world cities

Value

• Interactive Graphics side effect

Details

Should select a small section of the map or the program will take a long time to interpolate.

See Also

BASICTOPOMAP, RPMG

Examples

library(geomapdata)
data(worldmap)
data(ETOPO5)

###  this is in interactive mode with plotworldmap:
DOTOPOMAPI(TOPO=ETOPO5, themap=worldmap, shiftlon=180)



##  select a small region,  like the boot heel of italy

###########  italy:
Alocat = list(
lon=c(11.55842, 18.92308),
lat=c(35.71026, 47.05730),
LON=c(11.55842, 18.92308),
LAT=c(35.71026, 47.05730),
utmbox=list(x=32, y="S", lon=6,lat=32), 
x=c(191.5584, 198.9231),
y=c(35.71026, 47.05730),
UTM0=list(lam=9,phi=36),
shiftlon=180)


DOTOPOMAPI(TOPO=ETOPO5, themap=worldmap, ALOC=Alocat, shiftlon=180)