Top "Gis" questions

How to use OpenLayers 3 with Proj4js

I'm working on a map viewer project and used openlayers 2 before this. Now I have to use OpenLayers 3 and map …

openlayers gis projection openlayers-3 proj4js

gdal/ogr: How to really crop a shapefile?

Given a SHP file corresponding to European countries, and... Given defined area corresponting to France such : West : 005° 48' W East : 010° …

gis gdal shapefile ogr

Projection of a point to a line segment Python Shapely

I have a LineString defined by two points, so essentially a straight line segment, and I wanted to project a …

python gis point projection shapely

Convert Lat/Lon to MGRS

Does anyone know where I could find a library of code for converting Lat/Lon position to Military Grid Reference …

c# math gis coordinates coordinate-systems

Best way to get a map of a city using Basemap?

I am trying to use Basemap to display a map of a city, for example San Francisco, in python. I …

python google-maps matplotlib gis geo

Mixing surface and scatterplot in a single 3D plot

I am studying the patterns of distribution of whales around specific seabed structures. I am trying to create an interactive 3…

r gis plotly surface

Is it possible to programmatically take satellite images?

I am creating a project that can take long and lat of user and save them in a database and …

php google-maps gis qgis

Heightmap generation algorithm?

I was looking around the internet and couldn't find a perfect algorithm for this particular problem: Our customer have a …

algorithm gis geospatial arcgis heatmap

st_intersects errors for st_crs(x) == st_crs(y) is not TRUE

library(tidyverse) library(tigris) library(sf) santacruz <- tracts("CA", "Santa Cruz") coords_sf <- locations %>% st_…

r gis sf tigris

How can I get the city borders for a country

I want to extract city specific data from OSM for Finland. I have the data for Finland but I need …

gis openstreetmap