[R-sig-Geo] mapview 0.5.0

[Bernd Vogelgesang]

Many thanks for your work and special thanks for mentioning franconian  
breweries in your documentation ;)

Bernd

Am 13.09.2015, 12:42 Uhr, schrieb Tim Appelhans <tim.appelhans at gmail.com>:

> Dear all,
>
> I have put some more effort into mapview.
> The current version 0.5.0 has some new features which make the whole  
> experience much more user-friendly.
>
> In a nutshell, changes/additions are as follows:
>
> - mapView() is now also defined for SpatialPixelsDataFrame
> - all Spatial * DataFrame methods have gained argument 'zcol' to select  
> specific columns from the attribute table
> - SpatialPointsDataFrame method has gained argument 'radius' to scale  
> the circles according to another variable
> - added viewRGB() to render true-/false-color images of  
> RatserStacks/Bricks (like raster::plotRGB)
> - added viewExtent() to view the extent/bbox of Raster*/Spatial*  
> objects. This is useful for large objects as only the four corners of  
> the extent need to be reprojected (using raster::projectExtent)
> - defined '+'-method to easily add layers to a leaflet/mapview map or  
> combine existing maps
> - defined class 'mapview' which has two slots
>    - @object - a list with all objects that are shown on the map
>    - @map - the map
> - Raster* methods have gained argument 'maxpixels' to avoid long  
> rendering times (by default set to 500000 pixels which produces  
> acceptable times on my machine)
> - enhanced leaflet integration so that you can use leaflet maps and add  
> features using mapview (e.g. '+') or use mapview to create maps and add  
> functionality provided by leaflet (using e.g. %>%)
>
> As an example, this means that you can now do things like
>
> mapView(meuse.grid, zcol = "soil") + viewExtent(meuse) + meuse
>
> to view all points of meuse plus their extent on top of a raster layer  
> of meuse.grid$soil
>
> All new functionality is highlighted in detail in the demo at
>
> http://environmentalinformatics-marburg.github.io/web-presentations/20150723_mapView.html
> (the .Rmd source of which is now also included as a vignette in the  
> package)
>
> The package repository can be found at  
> https://github.com/environmentalinformatics-marburg/mapview
>
> To install the package use
>
> library(devtools)
> install_github("environmentalinformatics-marburg/mapview")
>
> I hope this update will prove useful for some of you.
> Don't hesitate to send me feedback and/or suggestions.
>
> Formal bug reports and feature requests should be filed at
> https://github.com/environmentalinformatics-marburg/mapview/issues
>
> Best
> Tim
>


-- 
Bernd Vogelgesang
Siedlerstraße 2
91083 Baiersdorf/Igelsdorf
Tel: 09133-825374