New answers tagged

0

A lot of online services display in WGS84 Web Mercator, which calculates distances terribly, so they calculate distance along the ellipsoid (geodetic distance) in the background, rather than the direct planar distance. (Whether they are using the correct ellipsoid formula or not is for another question.) ArcMap is more of a professional tool and makes no ...


0

You seem to mix 2 distinct concepts: mapping API and tile server. Though Google and Bing offer BOTH of these services, you are not obliged to use a packaged solution. Since Google and Bing are proprietary systems displaying proprietary data, i recommend that you switch to Open Street Maps API (ou OSMdroid for android). That will supply the functionalities ...


0

Sounds like you want to use some kdtree. The idea is that you insert your points into a kdtree, and then query it based on some distance from a known point. If your data is stored in Oracle, then use Oracle's built in spatial capabilities which should offer a radius based search on top of a point geometry type: ...


0

I haven't got any solutions for accessing KMZ files via a My Maps MSID/MID in Leaflet. However, in general, to load a KMZ file in Leaflet, you can use JSZip (along with the getBinaryContent method of JSZipUtils) to extract the KML, then Leaflet Omnivore to parse the result. JSZip will produce an object containing all the files in an archive, and you can ...


1

As of one week ago, this can now be achieved with the development version of mapview: # devtools::install_github("environmentalinformatics-marburg/mapview", ref = "develop") library(mapview) library(sp) # video pt <- data.frame(x = 174.764474, y = -36.877245) coordinates(pt) <- ~ x + y proj4string(pt) <- "+init=epsg:4326" mapview(pt, popup = ...


1

1) install QGIS http://www.qgis.org/en/site/ 2) export your access database to a csv 3) import csv to QGIS http://www.qgistutorials.com/en/docs/importing_spreadsheets_csv.html 4) save resulting vector dataset as .kml http://www.igismap.com/convert-shapefile-kml-qgis/ 5) import kml file to google earth ...


2

QMS is certainly installable using Ubuntu 14.04 and QGIS 2.14.1 so I suspect your issue is the age of your QGIS install if it really is 2.0.



Top 50 recent answers are included