tmaptools-package: Thematic Map Tools

Description

This package offers a set of handy tool functions for reading and processing spatial data. The aim of these functions is to supply the workflow to create thematic maps, e.g. read shape files, set map projections, append data, calculate areas and distances, and query OpenStreetMap. The visualization of thematic maps can be done with the tmap package.

Arguments

Handy tool functions

bb

To create, extract or modify a bounding box

bb_sp

Convert bounding box to a spatial polygon

geocode_OSM

To get location from an address description

rev_geocode_OSM

To get address description from a location

get_asp_ratio

To get the aspect ratio of a shape object

get_IDs

To get ID values of a shape object

append_data

To append a data frame to a shape object

approx_areas

To approximate area sizes of polygons

approx_distances

To approximate distances

projection_units

Get or translate units of a projection

calc_densities

To calculate density values

get_projection

To get the map projection

set_projection

To set the map projection

is_projected

Checks if the map is projected

sbind

To bind shape objects

crop_shape

To crop shape objects

simplify_shape

To simplify a shape

map_coloring

To color polygons with different colors for adjacent polygons

get_brewer_pal

Get and plot a (modified) Color Brewer palette

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Statistical transformation functions

smooth_map

To create a smooth map using a kernel density estimator

aggregate_map

To aggregate the units of a map

smooth_raster_cover

To create a smooth cover from a raster object

sample_dots

To sample dots from polygons

points_to_raster

To bin spatial points to a raster

poly_to_raster

To convert polygons to a raster

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Input and output functions

read_shape

To read a shape object

read_GPX

To read a GPX file

read_osm

To read Open Street Map data

write_shape

To write a shape object

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Details

This page provides a brief overview of all package functions.