CL_plot_earthMap — Plots an earth map (continents, lakes and islands)
CL_plot_earthMap([[,winId][,colorId][,tickInterval][,dataBounds])
(optionnal) figure Id - Id of the current window if omitted.
(optionnal) color index - Default is 1.
(optionnal) tick interval of the grid (longitude and latitude) in degrees - [60 ,30] if missing.
(optionnal) zoombox (longmin, latmin; longmax, latmax]. [-180,-90;180,90] if missing(entire view).
color can be used to chose the color of the map.
tickInterval can be used to modify the ticks of the grid.
dataBounds can be used to zoom in.
Note: The data are loaded from files located 'data/util' directory. These files contain 2 columns longitudes and latitudes. Blocks are separated by "999 999".