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NEWS

This fixes a few regressions in the tmap v4 release and adds improvements.

• [!] basemaps in plot mode much sharper, added tmap_providers() (#1041, #1042)
• [!] tm_comp_group() added to specify grouped components (incl legends)
• [!] added tm_animate() (main use case: cartograms)
• for the background and frame we introduce: bg/bg.color and frame/frame.color
• tm_remove_layer() works again in Shiny (#1044)
• tm_logo() works again in view mode (#1038).
• few fixes in legend computing and size (#1039, #1032)

tmap v4 is a major release and has been rewritten from scratch. It contains tons of new features. Although we did our best to make changes backwards compatible, some things may not work as expected.

• The arguments of layer functions such as tm_symbols() have been reorganized. Visual variables are used with explicit scales, legends, and charts.
• The names of visual variables are consistent across standard map layer functions. For vector data, fill is the visual variable for fill color and col for border color.
• New vignettes available to explain how to upgrade your code to tmap v4.

• rivers has been renamed to World_rivers due to the name clash with rivers from datasets.
• The Netherlands datasets have been updated: from 2022 NLD_prov, NLD_muni, and (new) NLD_dist (district level) have been included with new demographic variables.
• land has included color tables

• tmap can now be extended in several ways.

• All tmap v3 code should be backwards compatible with v4.
• We added ‘v3’ styles to make the layout (almost) identical to v3
• We introduced messages to make it easier for you to upgrade your code

• (!) last version of tmap 3.x. Next CRAN version will be tmap 4.x
• fixed bug (some stars appeared upside down in plot mode)
• fixed newly introduced shiny bug (#767)

• added device to tmap_save()
• fixed many small bugs (see GitHub issue list)

• Worlds has been fixed (it is now ‘s2’ proof, see GitHub issue #564)

• fixed view titles
• added html.escape to popup.format to control whether html code is escaped in view popups
• fixed many small bugs (see GitHub issue list)

• tmap_grob() added, which exports tmap plots to grob objects (grid package)
• SpatRaster objects (terra package) supported
• fixed many small bugs (see GitHub issue list)

• tmap_animation() improved: now using av and gifski under the hood; added progress bar; lists of tmap objects supported; improved default settings
• improved tmapOutput(); it now works with reactive shiny objects
• improved internally used margins; also small exported maps look good (see example tmap_save())
• improved tmap_design_mode(); tmap.design.mode is now a global option (and not a tmap option anymore)
• reexported providers from leafet
• added show.warnings to tmap_options()
• added width argument to tm_credits()
• tm_text() improved: added “id” argument, and tm_remove_layer() can be applied to it

• interactive maps in origin CRS working: tmap_options(projection = 0, basemaps = NULL)
• added tm_mouse_coordinates() to show mouse coordinates in view mode
• added tmap_design_mode() to toggle the design mode.
• made background symbol grob shapes transparent
• added in.iframe and selfcontained to tmap_save()
• improved tm_add_legend(): added type = "title" for title only legend elements
• added ttmp() which shows the last map in the other mode.
• fixed many small bugs (see GitHub issue list)

• [!] spatial rasters/arrays now implemented using the stars package (instead of the raster package)
• as.count argument added to layer functions; numeric variables can be treated as count variables (integers)
• drop.levels argument added to layer functions which allows to drop unused levels
• new style added for color classes: “dpih” and “headtails”; also added style.args to pass on arguments to classInt::classIntervals()
• grid labels specification per axis
• fixed bug with geometry collection

• probably last version before release of tmap 3.0
• many small improvements and bug fixes (see GitHub)
• first stars supported (full support expected in tmap 3.0)
• replaced projection shortcuts with "epsg/proj4strings" in examples

• improved popups in view mode
• added validity checks for sf objects
• minor bugs fixed: see GitHub issue list

• [!] shiny integration: added tmapOutput(), renderTmap(), tmapProxy(), and, tm_remove_layer()
• improved tmap_save() (regarding default values)
• improved tm_rgb() (added r g b and max.value arguments)
• added tm_graticules()
• supported TMS servers
• in view mode, layers can be hidden from the legend with group = NULL
• replaced mapview by leafsync
• minor bugs fixed: see GitHub issue list

• improved tm_rgb()
• improved breaks in interactive maps
• added bbox argument to qtm()
• improved projection shortcut codes (using EPSG database)
• fixed several bugs (see GitHub)

• fixed two small bugs

• added option max.raster (maximum raster size)
• made rasters in view mode faster
• bug fixed for geometry collection objects without data in view mode
• improved handling of manual palettes
• tmap_arrange() can take a list of tmap objects

• [!] tmap migrated from sp to sf. sp objects are still supported, but all internal functions are based on sf
• [!] added tm_sf() which draws sf objects
• [!] renamed all *_tmap() functions (e.g. save_tmap()) to tmap_*() for consistency
• [!] added tm_basemap() and tm_tiles(): now, multiple (overlay) tiled maps can be shown
• [!] rearranged tmap options, styles and formats. See tmap_options(), tmap_style(), tmap_format(), tm_style() and tm_format()
• [!] added filter argument to tm_shape() and added colorNULL to layer functions
• added tm_minimap()
• added remove.NA.facets to tm_facets()
• units data columns are supported
• tmap_animation() enhanced with loop options
• added tmap_tips()
• all changes are backwards compatible with 1.11-2
• vignettes rewritten, including a vignette that describes the changes of 2.0

• added references to JSS paper (including citation)

• fixed bug in labels argument of tm_fill()
• fixed bug regarding legend symbols in facets with free scales
• fixed bug in rasters in view mode
• improved popup width in view mode

• added text.align and text.to.columns to legend.format
• legend.(aes).reverse added to the layer functions
• symbol shapes can be put in a list for small multiples, and named according the values of the variable specified with the shape argument
• grid labels can now be rotated and formatted
• changed default values of free.coords and drop.units in tm_facets()
• fixed bug with all NAs in view mode
• fixed bug with dismo::gmap() raster shapes
• fixed bug for ambiguous values for aesthetics (e.g. when “blue” is also a variable name)
• NOTE: this will be the last version before the major update (in which sf fully replaces sp)

• [!] tm_scale_bar(), tm_text(), and tm_grid() now supported in view mode (requires leaflet 1.1.0)
• added along argument to tm_facets(), which enables faceting along multiple pages (or animation frames)
• added main.title argument to tm_layout
• added tmap_options(), including the new option tmap.unit (“metric” or “imperial”“)
• improved automatic labelling of breaks
• improved legend in view mode: missing values are shown by default (like in plot mode)
• improved bubble scaling in view mode
• fixed bug aspect ratio bug

• added tm_rgb() (shortcut for rgb rasters)
• fixed interactive maps in R Markdown
• fixed bug in qtm() called without arguments

• [!] package split: non-plotting functions migrated to tmaptools
• added tmap_arrange() for arranging custom small multiples
• added simplify argument to tm_shape()
• added error message for NA-projected shapes in view mode
• improved unit handling, which now can be set to metric or imperial
• NA values allowed in direct color variables
• sf (simple features) objects supported

• improved projections: code is more efficient now and shortcuts are renewed. Also, CRS objects are now supported for all project arguments (e.g. tm_shape(), set_projection), and as.CRS is added to get_projection and get_proj4.
• Rscript works: methods is moved from imports to depends

• [!] tm_symbols() added, to create proportional symbol maps: besides bubbles, it also supports other symbol shapes, png icons, and small ggplot2 plots
• [!] imported cartogram function from cartogram package (thanks Sebastian!)
• [!] reverse geocoding function tmaptools::rev_geocode_OSM() added
• [!] tm_logo() added
• added popup.vars to base layer functions
• bounding box (argument bbox in tm_shape()) working in view mode
• tmaptools::geocode_OSM() improved: a SpatialPointsDataFrame can now be returned
• last_tmap() added, which retrieves the last produced map
• crop_shape can also handle polygons as cropping area
• append_data improved; the under and over coverage information can be retrieved with under_coverage and over_coverage
• interpolate parameter added to tm_raster()
• added support for custom legend formatting functions
• legend items can now be stacked horizontally
• legend width and height can be determined fully manually (with negative values for legend.height and legend.width)
• argument interval.closure added to layer functions to determine where intervals are closed
• added warnings for non-supported elements in view mode
• fixed raster brick bug
• fixed save_tmap/get_asp_ratifo bug

• add just argument as anchor for text labels, legend and attributes position
• map attributes (such as scale bar) can be placed outside the frame
• added tm_xlab() and tm_ylab()
• RGB raster support, see tm_raster
• static text (i.e titles, credits, legend titles, labels) support expressions
• updated Europe shape: projection and bounding box are now consistent with Eurostat publications
• added crop_shape, a convenient wrapper around raster::crop()

• [!] interactive mapping added. Now, tmap has two modes: “plot” (graphics device) and “view” (interactive viewer, which is a leaflet widget)
• [!] facets (small multiples) improved: group by two variables possible, panel layout added, missing data can be shown separately
• added geocode_OSM(), a function to find coordinates (now tmaptools::geocode_OSM())
• improved set_projection for raster objects
• added double_line and offset_line
• added insets option in save_tmap
• improved default settings for contrast argument regarding seq and div palettes
• improved automatic positions of legend and map attributes (more specifically, legend snaps to right-hand side without need to adjust legend.width, and legend and attributes position improved when double frame is enabled)
• improved tm_layouts()’s design.mode output
• lwd parameter added to tm_scale_bar() and tm_compass()
• fixed bb bug

• fixed bug with PROJ.4 version < 4.9.1
• improved error messages
• rd projection reset to "+init=epsg:28992", since the latter now has a "+towgs" item
• fixed bug of print.tmap() returned object

• added read_osm(), a function to read Open Street Map data (now tmaptools::read_osm())
• added bb, a handy bounding box function
• added layout themes with tm_style and tm_format
• added automatic text labeling
• added interactive SVG, that can be opened in RStudio (see itmap)
• added map compass (tm_compass())
• added text aesthetics size and col
• added automatic map coloring
• added earth boundary, which is useful for projected world maps World
• added warped grid lines (e.g. long-lat lines can be shown in projected maps)
• added new color scale modes (enabled with style="cat", “cont”, and “order”)
• added save_tmap()
• added smooth_map, smooth_raster_cover, sample_dots, points_to_raster and poly_to_raster
• added read_GPX
• improved automatic layout regarding title, legend, and map attributes
• layer arguments, e.g. palette, can take multiple values for small multiples
• improved grid lines (labels can also be placed outside frame)
• arguments free.coords and drop.shapes of tm_facets() working
• updated examples and vignette
• fixed viewport bug
• see ?tmap for a structured overview of all tmap functions

• added tm_credits() and tm_scale_bar()
• added is.master argument to tm_shape(), that determines which shape is the master
• added unit and unit.size arguments to tm_shape() that correlates the coordinates with the desired units
• added tm_polygons(), which is a combination of tm_fill() and tm_borders()
• fixed several small bugs

• added tm_raster()
• improved legend behavior: legend titles should be set in the layer functions (instead of in tm_layout())
• removed crop_shape(), since raster::crop() does the same job, but, but faster
• out-of-scope functions migrated to spatialToolbox package, available on https://github.com/mtennekes/spatialToolbox

• fixed bug in scale parameter (global scale set in tm_layout())

• enhanced small multiples (tm_facets()) with respect to scaling and free coordinate scales
• added alpha argument to tm_layers() for transparency
• added text shadow argument
• added function split() to split a shape object and sbind() to combine shape objects.
• added automatic legend positioning when legend.position = NULL
• improved number formatting in legend
• improved inner.margins and outer.margins. Both can take one value (e.g. outer.margins=0 rather than outer.margins=c(0,0,0,0))
• improved qtm(): tm_facets() parameters working, and also fixed scale parameter bug
• improved all examples for approx_areas, calc_densities
• fixed bug regarding drawing a frame with outer.margins=0.
• fixed bug in plotting bubbles
• improved temp file handling in animation_tmap()
• added functions to get and set polygon directions, and to calculate the intersection ratios of polygons (intersection_shapes)

• this is the the first CRAN version
• a newer version may be available on https://github.com/r-tmap/tmap
• to get started, see the package vignette ‘tmap in a nutshell’ and the help files
• if you have any questions or suggestions, please contact me (mtennekes at gmail dot com)

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