Questions tagged [raster]
A rectangular array of pixels. A Raster defines values for pixels occupying a particular rectangular area of the plane, not necessarily including (0, 0).
raster
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adjustments in react leaflet currently done on openlayers
I have an application that uses the openlayers library in react to display a map.
I use an internal raster tile server that has a strange a strange configuration.
all tiles are offset and squished ...
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How to find the width of a river in a LandSat-8 image using rasterio, in a given interval? eg:10m, 20m [closed]
I am working on a project where I have to find width of a river in a given interval.
# %% [markdown]
# ### Import required libraries
# %%
import rasterio
from skimage import filters
import matplotlib....
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Error rendering text in rayshader and opactiy also don't work when using render_higquality
The opacity of polygon and text works when using plot_3d only but whenever i use render_highquality, text are replaced by rectangular box with no text and opactity of polygon is always 1 though using ...
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Merge several rasters into one large raster file in R with 'terra'
I have several rasters (.tif) files and want to merge them into a final large raster. Each smaller raster file is also in relatively large size.
I used the terra R package's vrt function to first ...
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Change raster extent with tidy
I have files from ERA5 that have extent from 0 to 360 (lon) and -90 to 90 (lat)
Example:
> era5_sr
class : SpatRaster
dimensions : 721, 1440, 744 (nrow, ncol, nlyr)
resolution : 0.25, 0....
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How to retrieve images from HERE API preserving geometry
I tried https://image.maps.hereapi.com/mia/v3/ to extract images and I did successfully but they always come in the fashion (I guess) base64 format with no geometry. I'm a newbie in the use of apis so ...
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R - error with terra::extract : unable to find inherited method for function "extract" for signature "SpatRaster", "SpatialPolygons"
I'm trying to convert an R script using package raster in order to use package terra instead. So I changed the raster::raster function for terra::rast function, and also the raster::extract for terra::...
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How to successfully create raster of predicted values from spatial logistic regression? R spaMM package
I am trying to run a spatial logistic regression model using the spaMM package in R. I have a stack of three predictor rasters representing canopy height, canopy layers, and large tree density, and am ...
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Embedding text in a terra raster?
Is there a simple way of embedding a given text in a terra raster, at a given position? Thanks,
Jean-Luc
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How can I go through all possible numbers in one loop?
I am quite new with R and trying to turn a larger SpatRaster into SpatVector.
Unfortunately using
vec <- as.polygons(raster)
I get Error: [as.polygons] the raster is too large
So I figured I can ...
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Mask a list of rasters using a list of spatial vectors (shapefiles)
I have a list of raster files and a list of shapefiles ordered by date (one for each of 52 weeks of the year). I need to mask each raster with its corresponding shapefile and I am stuck on the code to ...
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Matching dataframe values to RasterLayer names and performing calculations
In R, I have a list of formal class 'RasterLayer' rasters that I obtained using the following code:
library(raster)
library(terra)
rasterlist <- list.files(path = ".", pattern = "*\\....
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Sampling random points in R with both raster and shapefile constraints
I am trying to sample random points according to 2 conditions:
in non-NA cells of a raster
inside the polygons of a shapefile
I tested the terra::spatSample() function, but I can't meet the second ...
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Single band multiple raster Exploratory Data Analysis (EDA) in R
I have single band 764 weekly raster files from 2009 to present. Using these files, I want to make seasonal exploratory data analysis (EDA) according to corresponding years. I need to know how I can ...
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Permission error [WinError 32], python and rasterio/geowombat
i have a code where I clip first and then resample the raster using geowombat. At the end I am trying to delete the clipped raster in the directory, but that does not work, it indicates that the ...
