LLsmallcircMap function

World Map centered on Lat-Lon

World Map centered on Lat-Lon

World Map centered on Lat-Lon with Lambert-Azimuthal projection.

LLsmallcircMap(phicen, lamcen, worldmap, eqlat, eqlon, MAXR = 100, circol = rgb(1, 0.8, 0.8), mapcol = rgb(0, 0, 0), eqcol = rgb(0.8, 0.8, 1) , pch=25, ecex=1 )

Arguments

  • phicen: Center Latitude
  • lamcen: Center Longitude
  • worldmap: GEOmap map structure
  • eqlat: Latitudes of points, vector
  • eqlon: Longitude of points, vector
  • MAXR: Maximum radius, degrees
  • circol: Color for small circles
  • mapcol: Color for map
  • eqcol: Color for points, single or 2-vector
  • pch: Plotting character for points
  • ecex: Plotting size for points

Details

Uses a Lamber-Azimuthal projection of the whole globe out to the given radius. If a vector of 2 colors are provided for the eqcol parameter, and the pch is one of (21:25), then a 2-tone points is plotted with ecol[1] on the perimeter, and ecol[2] on the interior.

Returns

Graphical side effects

Author(s)

Jonathan M. Leesjonathan.lees@unc.edu

See Also

lamaz.eqarea

Examples

### earthquake in Noto,Japan data(coastmap) elat = 37.4949 elon = 137.2653 K = list(lon=c(183.3158,188.2173,253.5428,295.3037, 166.4531,110.5354,268.7554,98.9443,212.1384,236.6954), lat=c( 51.8823,-13.9085,34.94591,32.3713,68.0653, -66.2792,38.0557,18.8141,64.8736,44.5855 )) LLsmallcircMap(elat, elon, coastmap, K$lat, K$lon ) LLsmallcircMap(elat, elon, coastmap, K$lat, K$lon, MAXR=80, eqcol=c('blue', 'gold') , mapcol=grey(.8), pch=22, ecex=1.5 )
  • Maintainer: Jonathan M. Lees
  • License: GPL (>= 2)
  • Last published: 2024-07-09

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