R: plots on map tiles by "stitching" them together

PlotOnMapTiles {RgoogleMaps} | R Documentation

## plots on map tiles by "stitching" them together

### Description

Counterpart to `PlotOnStaticMap` for map tiles

### Usage

    PlotOnMapTiles(mt, lat, lon, center, size = c(768, 768), FUN = points,
        mar = c(0, 0, 0, 0), verbose = 0, ...)

### Arguments

`mt` | list returned by `GetMapTiles`
`lat` | latitude values to be overlaid, if any
`lon` | longitude values to be overlaid, if any
`center` | optional center
`size` | size (in pixels) of "stitched" map
`FUN` | plotting function to use for overlay; typical choices would be points and lines
`mar` | outer margin in plot; if you want to see axes, change the default
`verbose` | level of verbosity
`...` | further arguments to be passed to `FUN`

### Value

nothing returned

### Author(s)

Markus Loecher

### Examples

    if (0){
      lat = c(40.702147,40.718217,40.711614);
      lon = c(-74.012318,-74.015794,-73.998284);
      center = c(mean(lat), mean(lon));
      zoom <- min(MaxZoom(range(lat), range(lon)));
      bb=qbbox(lat,lon)

      mt = GetMapTiles(latR =bb$latR , lonR=bb$lonR,zoom=zoom,verbose=1)
      PlotOnMapTiles(mt,lat=lat,lon=lon,pch=20,col=c('red', 'blue', 'green'),cex=2)

      mt = GetMapTiles(latR =bb$latR , lonR=bb$lonR,zoom=zoom,
                       tileDir= "~/mapTiles/Google/")
      PlotOnMapTiles(mt,lat=lat,lon=lon,pch=20,col=c('red', 'blue', 'green'),cex=2)

    }

[Package RgoogleMaps version 1.4.1 Index]