All Questions
19
questions
4
votes
2
answers
2k
views
Removing part of a raster image over a body of water
I'm trying to make a map with leaflet that will ultimately be used to display various estimates interpolated over a geographic region.
I apologize for linking to the data. I wasn't clever enough to ...
- 17.2k
2
votes
1
answer
731
views
R for leaflet redirect when clicking on raster image
I'm using leaflet for R and I simply would like to be redirected on some URL when I click on the raster image. My current code is the following :
library(htmlwidgets)
library(raster)
library(leaflet)
...
- 409
2
votes
0
answers
229
views
Display a projected raster on a projected basemap in R/leaflet?
Is it possible to display a projected raster on a projected basemap in R/leaflet? The addRasterImage() functions says that the projection needs to be in EPSG:3857. Can this not be changed by setting ...
- 460
2
votes
0
answers
1k
views
How do I add a raster to a leaflet map in r that nicely covers the land, and doesn't have gaps?
I have a dataset of several thousand geographical points, each assigned a cluster (in my reproducible example below I simplify this to 8 points). I want to color an entire global map (only the ...
- 21
1
vote
1
answer
4k
views
Create and display a raster for Leaflet in R
I've been reading through the documentation, but not getting anywhere with this question.
I have a data frame with three columns. The first two are gps coordinates, [such as 42.06, -70.19 for (...
- 391
1
vote
0
answers
1k
views
How to plot a large rasterfile quickly in R leaflet with shiny
I obtianed a large rasterfile (.asc file), which I can import in R and plot on a leaflet map. Because the file is pretty big, it takes about 40 seconds before the rasterimage is plotted on the basemap....
- 129
1
vote
0
answers
69
views
How are my popups not showing in my Leaflet map?
How can I make popups show up in leaflet that I plot using this code?
leaflet(df) %>%
addTiles() %>%
setView(-119.09, 43.70, zoom = 5) %>%
addCircles(~long, ~lat, popup=df$hrus, color="...
- 5,474
1
vote
1
answer
3k
views
Project Raster Stack as animation or GIF Leaflet
Is there any way to project raster/images as animation onto Leaflet?
In R raster package we can animate raster layers with: animate(rasters). And you can save it as GIF with:saveGIF(animate(rasters))....
1
vote
1
answer
504
views
Raster package doesn't work with my shiny server
I am trying to put a script on a shiny server. This script is working well when I type it in the R console. This is a R script using shiny.
library(shiny)
library(htmlwidgets)
library(raster)
library(...
- 409
0
votes
1
answer
392
views
How to set projection of interpolated raster for plotting in leaflet plot for r?
I'm trying to add a raster image to a leaflet. While not totally happy with my interpolation, I do have one that plots through the the normal plot function. The code I have shown below should be able ...
- 1,234
0
votes
1
answer
1k
views
Leaflet for R clear raster with shiny
I'm wondering if their is a way to clear a raster image with shiny when the user click on some radio button. I saw there is a function to clear polygons - clearshape() but I need to do the same with ...
- 409
0
votes
1
answer
463
views
ISO-3 of all the countries in R
I am trying to make a map that looks like so where can I get the ISO-3 of all the countries. many thanks in advance.
- 2,763
0
votes
1
answer
451
views
Customizing Raster Labeling in LeafLet R
I have a raster layer with cell value ranging from 1 to 68, each number representing a different land cover type. how can i do it? I tried labelformat>>> transform. So far I can only work for ...
- 11
0
votes
1
answer
386
views
Add `RasterLayer` to `addLayersControl` in leaflet
I have to RasterLayer-objects (raster1 and raster2) in R. And I want to add them both to a leaflet-map. I also wanted to have the option to show or hide them. So I thought I'd add them with their ...
- 1,433
0
votes
0
answers
545
views
How to filter a raster layer and plot only the cells above a certain value in R using Leaflet?
I have a raster layer that contains 24-hour snow accumulations across the United States. The data can be pulled from here:
https://www.nohrsc.noaa.gov/snowfall_v2/data/202105/...
