tmap-package: Thematic Map Visualization

Description

Thematic maps are geographical maps in which spatial data distributions are visualized. This package offers a flexible, layer-based, and easy to use approach to create thematic maps, such as choropleths and bubble maps. It is based on the grammar of graphics, and resembles the syntax of ggplot2.

Arguments

Quick plotting method

`qtm`	Plot a thematic map
---------------------------	---------------------------------------------------------------------------------------------------

Main plotting method

Shape specification:

`tm_shape`	Specify a shape object
---------------------------	---------------------------------------------------------------------------------------------------

Aesthetics base layers:

`tm_polygons`	Create a polygon layer (with borders)
`tm_symbols`	Create a layer of symbols
`tm_lines`	Create a layer of lines
`tm_raster`	Create a raster layer
`tm_text`	Create a layer of text labels

Aesthetics derived layers:

`tm_fill`	Create a polygon layer (without borders)
`tm_borders`	Create polygon borders
`tm_bubbles`	Create a layer of bubbles
`tm_squares`	Create a layer of squares
`tm_dots`	Create a layer of dots
`tm_markers`	Create a layer of markers
`tm_iso`	Create a iso/contour lines
---------------------------	---------------------------------------------------------------------------------------------------

Facetting (small multiples)

`tm_facets`	Define facets
---------------------------	---------------------------------------------------------------------------------------------------

Attributes:

`tm_grid`	Create grid lines
`tm_scale_bar`	Create a scale bar
`tm_compass`	Create a map compass
`tm_credits`	Create a text for credits
`tm_logo`	Create a logo
`tm_xlab and tm_ylab`	Create axis labels
---------------------------	---------------------------------------------------------------------------------------------------

Layout element:

`tm_layout`	Adjust the layout (main function)
`tm_legend`	Adjust the legend
`tm_view`	Configure the interactive view mode
---------------------------	---------------------------------------------------------------------------------------------------

Change options:

`tmap_mode`	Set the tmap mode: `"plot"` or `"view"`
`ttm`	Toggle between the modes
`tmap_style`	Set the default style
---------------------------	---------------------------------------------------------------------------------------------------

Create icons:

`tmap_icons`	Specify icons for markers or proportional symbols
---------------------------	---------------------------------------------------------------------------------------------------

Output functions

`print`	Plot in graphics device or view interactively in web browser or RStudio's viewer pane
`last_map`	Redraw the last map
`tmap_leaflet`	Obtain a leaflet widget object
`animation_tmap`	Create an animation
`save_tmap`	Save thematic maps (both in plot and view mode)
---------------------------	---------------------------------------------------------------------------------------------------

Spatial datasets

`World`	World country data (spatial polygons)
`Europe`	European country data (spatial polygons)
`NLD_prov`	Netherlands province data (spatial polygons)
`NLD_muni`	Netherlands municipal data (spatial polygons)
`metro`	Metropolitan araes (spatial points)
`rivers`	Rivers (spatial lines)
`land`	Global land cover (spatial grid)
---------------------------	---------------------------------------------------------------------------------------------------

Details

This page provides a brief overview of all package functions. See vignette("tmap-nutshell") for a short introduction with examples. See vignette("tmap-modes") for a short demo of the two output modes: plot and interactive view.