I have several cropped rasters with different geometry/outlines. Specifically spatial yield maps from several years of the same field, but the extent varies - the measurements were not always overa...

I have a set of polygons of which some intersect and/or touch (common borders). I am using R's sfpackage to perform operations on polygons. My approach so far was to use sf::st_union() which joins ...

I would like simply delete some polygons from a SpatialPolygonsDataFrame object based on corresponding attribute values in the @data data frame so that I can plot a simplified/subsetted shapefile. ...

I want to plot some interpolating data on a projected map using ggplot2 and I have been working on this problem for a few weeks. Hope someone can help me, thanks a lot. The shapefile and data can b...

Suppose I have yearly precipitation data for 100 stations from 1951 to 1980. In some papers, I find people apply PCA to the time series and then plot the spatial loadings map (with values from -1 t...

After reading a lot of posts and websites I can't find out how to create a polygon shapefile from my lon-lat data table. I would like to create maps like this one. My csv data file contains longi...

is there any posibility to show only Germany Country Borders and inner Data with Mapbox ? I dont want the rest of the world displayed. Thankx, Markus

I am trying to create a Circle Geometry in MySQL using the co-ordinates of the center and a radius. I searched everywhere...all i could find in the MySQL doc on the site were for polygons. May be i...

I would like to know what is the difference between two spatial libraries - Microsoft.Spatial and System.Spatial? When I'm looking into the code of those two I see almost the same classes. Both ha...

G'day Everyone, I am trying to get some elevation data for about 700 points I have. I thought I might use the code provided to the same question (Conversion for latitude/longitude to altitude in R...

In the example page it is shown how to do a neighbor search with a limit on the number of returned items. Is it possible to also specify a distance limit? I.e.: Return all items that are at most...

I am trying to spatially interpolate a dataset of seawater pH by lat & long: sample<-read.csv(file="Station locations 2016.csv", header=TRUE, sep=",", strip.white=T) hea...

I have created the following MySQL table to store latitude/longitude coordinates along with a name for each point: CREATE TABLE `points` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `name` v...

I am trying to figure out the best way of calculating the volume of a 3D polyhedron with Python, and I'm hoping there is a simple solution out there, which I can't seem to find. Example polyhedron...

To change raster values under SpatialPoints you can simply use [ . r <- raster(system.file("external/test.grd", package="raster")) rTp <- rasterToPoints(r, spatial = T) set.seed(666) rTpS ...

I want to calculate the distance between two linked set of spatial coordinates (program and admin in my fake dataset). The data are in a wide format, so both pairs of coordinates are in the same ro...

Dear Crowd Problem I tried to calculate a spatial correlogram with the packages nfc, pgirmess, SpatialPack and spdep. However, I was troubling to define the start and end-point of the distance. I'm...

I am currently struggling with deployment problems caused by Microsoft.SqlServer.Types and its associated unmanaged library, SqlServerSpatial110.dll - both for Microsoft SQL Server 2012. The proble...

I want to store latitude and longitude values of places in a mysql database table. With the future in mind I will want to be able to find these places within a certain radius of a specific location...

I am trying to set <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" /> to <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLSpatialDialec...

Has any of you had any experience with using NoSQL (non-relational) databases to store spatial data? Are there any potential benefits (speed, space, ...) of using such databases to hold data for, s...

G'day, I am working with a large dataset with ~125,000 lon/lat locations with date, for species presence/absence records. For at each location I want to work out what the weather was like at each l...

Well, the question is clear enough. Is it possible to create spatial indexes using Entity Framework 6.1 fluent API?

I'm trying to create a circle in a SQL Server based on a midpoint and a radius. This seems to be close as a solution, but it creates an oval or an ellipse vs a circle. Is there another way to cre...

Almost all the functions in PostGIS start with ST. e.g. ST_Distance_Sphere, ST_GeomFromText, ST_Intersection, etc. What does ST mean? http://www.postgis.org/documentation/manual-svn/PostGIS_Speci...