Top "Spatial" questions

Spatial data types store geometric data, that is data related to an object's position in space.

plotting SpatialPointsDataFrame over a SpatialPolygonsDataFrame

I have a SpatialPolygonsDataFrame that I plot using the following command: spplot(milanoNILNew, "percPolVita",at = c(0,0.0696,0.08979,0.0974,0.1116,0.181),col.regions =pal,main="…

r spatial rgdal
sql geography to dbgeography?

Maybe I'm missing something. I have a sql server column of the "Geography" datatype. I want to use the DbGeography …

sql-server c#-4.0 gis geospatial spatial
MySQL Spatial - Convert from SRID 31287 to 4326

In MySQL I have a a database with around 100 tables. They all contain a column called ´shape´, this is a …

mysql spatial srid
MySQL latitude and Longitude table setup

I want to store latitude and longitude values of places in a mysql database table. With the future in mind …

mysql spatial latitude-longitude
What technique should be used to prune 2d collision checks?

From the outset, collision detection feels like it is an O(n^2) problem. You have a bunch of objects and …

data-structures collision-detection spatial broad-phase
Bring rasters to same extent by filling with NA - in R

I have several cropped rasters with different geometry/outlines. Specifically spatial yield maps from several years of the same field, …

r stack spatial raster calc
Create polygon (rectangle) from min and max lat/long

Given a lat/lon representing a South West point and a lat/lon representing a North East point When I …

sql sql-server polygon spatial geography
Split polygon parts of a single SpatialPolygons Object

In R, I have single SpatialPolygons object (i.e. multi-polygons) containing several hundred polygons. I would like to split this …

r spatial polygons
Extract feature coordinates from SpatialPolygons and other sp classes

Package sp provides a number of classes for different spatial concepts (points, lines, polygons). For some classes, accessing feature coordinates …

r class ggplot2 spatial