Sf

Introduction to mapping with {sf} & Co.

At the “Rencontres R 2018” in Rennes, I proposed a brief introduction to mapping using the recent {sf} package and some other interesting packages. This blog post is an extended version of my presentation allowing me to share the code of the different maps that appeared on it. It’s still a brief …

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Polygons tint band with leaflet and simple feature (library sf)

Let’s use some French regions polygons and attribute one colour to each region. I like piratepal colours of library yarrr. […] To create the doughnuts using original and buffer polygons, I used st_difference. However as discussed with edzer in the sf github repository, I had to transform the …

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How to fill a hatched area polygon with holes in leaflet with R

I built a R package, available on my statnmap github, to provide the function hatched.SpatialPolygons. This function is based on the plot method for SpatialPolygons of library sp. I modified the functions and sub-functions to remove all code for direct drawing and allow to output a …

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Plot a specific image in a delimited polygon as repeated pattern on a map

##Plot an image pattern in a delimited polygon […] Let us define a SpatialPolygonsDataFrame to work on. Let’s also define the specific polygon in which to draw the forest. […] ###Draw a point grid with emoji in a specific polygon We can sample points in the polygon area using …

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