make_basemap: make_basemap
In Maritimes/bio.plotting: Simple tools for creating maps and quickly plotting data

Description Usage Arguments Value See Also

This function creates a simple basemap on which to plot data. The plot consists of a (filled) coastline, with a labelled lat-lon grid. When a dataframe is provided, the extents of the plot will automatically match the extent of the supplied data (with a 15 percent buffer around the edges). Additionally, the output projection of the plot can be specified (e.g. "+init=epsg:2220" would result in UTM Zone 20 N, while "+init=epsg:4326" would be an unprojected WGS84 plot. Many values are possible and/or appropriate for the value of crs.out, depending on the data. Check CRS-class for more options.

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make_basemap(df = NULL, lat.field = "LATITUDE", lon.field = "LONGITUDE",
  crs.out = "+init=epsg:2220", x.limits = c(-70, -54), y.limits = c(41,
  50))

`df`	default is `NULL`. You can optionally send a dataframe with values for `LATITUDE` and `LONGITUDE` to this function, which can be have the plot extent match the data.
`lat.field`	default is `LATITUDE`. The field in the dataframe holding the latitudes
`lon.field`	default is `LONGITUDE`. The field in the dataframe holding the longitudes
`crs.out`	default is `'+init=epsg:2220'` (UTM Zone 20 N). This is the desired projection of the final plot.
`x.limits`	default is `c(-70, -54)` but an appropriate value would be in the form of `c(-70,-54)`. These are the default bounding longitudes.
`y.limits`	default is `c(41, 50)` but an appropriate value would be in the form of is `c(41,50)`. These are the default bounding latitudes for extent.