load_map_data

Internal function to load large shapefile objects. Downloads the files if they are not found <code>getOption("ggOceanMaps.datapath")</code>

internal

Allows plotting data on bathymetric maps using 'ggplot2'. Plotting
oceanographic spatial data is made as simple as feasible, but also flexible
for custom modifications. Data that contain geographic information from
anywhere around the globe can be plotted on maps generated by the basemap()
or qmap() functions using 'ggplot2' layers separated by the '+' operator. The
package uses spatial shape- ('sf') and raster ('stars') files, geospatial
packages for R to manipulate, and the 'ggplot2' package to plot these
files. The package ships with low-resolution spatial data files and
higher resolution files for detailed maps are stored in the
'ggOceanMapsLargeData' repository on GitHub and downloaded automatically
when needed.

Mikko Vihtakari

ggOceanMaps

Plot Data on Oceanographic Maps using 'ggplot2'

Roger Bivand

Hadley Wickham

load_map_data function

<dl><dt>x</dt>
<dd>An object from <code>shapefile_list</code>.</dd>
<dt>force</dt>
<dd>Logical indicating whether to download the file even though it exists. Useful when files in the <a href="https://github.com/MikkoVihtakari/ggOceanMapsLargeData">Github repository have been changed</a>. Overwrites the old file.</dd>
<dt>downsample</dt>
<dd>Integer defining the downsampling rate for raster bathymetries. A value of 0 (default) does not downsample, 1 skips every second row, 2 every second and third. See <code>geom_stars</code></dd></dl>

Arguments

Author

Load large shapefile objects — load_map_data

<dl>

<dt>x</dt>
<dd>An object from <code>shapefile_list</code>.</dd>


<dt>force</dt>
<dd>Logical indicating whether to download the file even though it exists. Useful when files in the <a href='https://github.com/MikkoVihtakari/ggOceanMapsLargeData'>Github repository have been changed</a>. Overwrites the old file.</dd>


<dt>downsample</dt>
<dd>Integer defining the downsampling rate for raster bathymetries. A value of 0 (default) does not downsample, 1 skips every second row, 2 every second and third. See <code>geom_stars</code></dd>

</dl>

load_map_data: Load large shapefile objects

Description

Usage

Value

Arguments

Author

Details

See Also