render_map: Renders required map background using OSM data and mapnik...

In PawelMG/gis_server: Package facilitating the use of open map data

Description

The render_map passes the bounding box and the graphical parameters of the required map background to the mapnik rendering engine. The map is rendered by mapnik based on OpenStreetMap data stored in a local PostgreSQL database.

Usage

render_map(map_data, ext_map, options_list = NULL, db)

Arguments

map_data	a character string with the path to the folder storing the map data.
ext_map	a spatial object of class 'extent' from the 'raster' package holding the data on the extreme coordinates of the input object.
options_list	a list of graphical and other parameters used by the rendering engine.
db	a SQLiteConnection object that specifies the connection to the database.

Value

NULL there are no values returned by this function to the workspace; the output of the function is just the map file written in the /ttemp folder.

PawelMG/gis_server documentation built on May 9, 2019, 2:24 p.m.