Questions tagged [r-sf]
The motivation behind the `sf` package is to provide a complete, standardized implementation of simple features in R, with links to GDAL, GEOS and Proj.4. There is a also https://gis.stackexchange.com/ for spatial R questions.
r-sf
478
questions with no upvoted or accepted answers
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How to transform vertical z elevation coordinates in R sf
I have some spatial data recorded by a GPS/GNSS that includes Lat/Lon and Height Above Ellipsoid (HAE, meters) altitude values, all are referenced to NAD83(2011), EPSG:6318. I'm trying to convert the ...
- 563
9
votes
1
answer
2k
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Error when installing SF in R double free or corruption
The problem
I was trying to install SF again in my Ubuntu 18.04 machine, because it was giving me some problems. Since I wanted to start everything clean I tried the following:
remove.packages("...
- 4,052
7
votes
0
answers
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How to make geom_sf() point northwards?
I am trying to make a mapping package for R and ggplot that would allow the users to define their data using decimal degrees but would use appropriate projection depending on where the user's data are ...
- 7,680
7
votes
0
answers
284
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R: Why does st_join give invalid times error?
I am trying to join 2 SpatialPointsDataFrames by nearest neighbour analysis using sf::st_join(). Both files have been converted using st_as_sf() but when I try the join I get the error
Error in rep(...
- 264
6
votes
0
answers
171
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Label a map with lead lines/call out using tmap in R
I am trying to produce a map using the tmap library. I want to label all areas and use lead lines to label tiny areas. I'm looking for a line of code that works like ggrepel in ggplot2 or ...
- 577
6
votes
0
answers
534
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Spatial join of 100 million points using R
I have a dataset that contains 100 million points. I need to spatially join them to the area they intersect with. I'm using sf and st_join, but unsurprisingly when I try to perform this operation my ...
- 1,237
6
votes
0
answers
526
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Error using mapview package: (!is.na(getProjection(lst[[i]]))) { : argument is of length zero
I am trying to use the mapview package to plot a raster and sf feature.
streamsTransform <- st_transform(streams, 2958)
st_crs(streamsTransform)
dem17N <- projectRaster(dem, crs = "+proj=utm +...
- 61
6
votes
1
answer
3k
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rasterFromXYZ() Error in rasterFromXYZ() : x cell sizes are not regular
I am trying to plot points from a df (xyz/latlonvalue) as raster over a geom_sf shapefile. I tried the answers from another post but none of them helped. The data structure is below.
First I try ...
- 643
5
votes
0
answers
3k
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Error sf: no simple features geometry column present
I tried to import an ESRI shapefile with sf with the following code:
test = st_read("mont.shp", package="sf")
However, I get the error message:
Error in st_sf(x, ..., agr = agr, ...
- 111
5
votes
0
answers
553
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create animation of vehicle moving along a route "with timeline of events"
This is a followup question on How to create animation of vehicle moving form A to B along a route?. I could learn how to animate vehicles moving from A to B along the route. Thanks for the help!
But ...
- 1,516
5
votes
0
answers
430
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Fast geospatial sampling in R
I have a large set of polygons (about 20k) that I want to sample points from. I use the st_sample function from the sf package in R, but it's pretty slow. It takes about 5 minutes to sample from all ...
- 469
5
votes
0
answers
2k
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geom_sf does not use geometry coordinates in axes but plots correct shape of polygon?
My overall aim is to combine multiple shape files (polygons of river sub-basins from within a large river basin) into one file and plot as a map. This new combined file will later combine with ...
- 51
5
votes
0
answers
2k
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Loop to check multiple polygons overlap in r SF package
I have a set of polygons which can overlap each other.
I can find intersection by comparing 1 by 1 polygon each time step by step. by using st_intersection(x,y) The problem is my data contains many ...
- 651
5
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0
answers
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Google basemap and geom_sf aligned WITH custom geom_image symbols and annotation labels in R
I would like to use custom symbols and annotation on a geom_sf polygon layer that is placed on a google basemap. Initially, I had difficulty with the basemap and polygon lining up correctly
So I ...
- 51
4
votes
1
answer
144
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Error uploading spatial data to existing RPostgreSql table using sf::st_write() in R
I created the following RPostgreSql table with a primary key and foreign key:
create table
us_hurricanes (
id serial primary key
, geo_id int ...
- 153