2,810 reputation
320
bio website atlefren.net
location Trondheim, Norway
age 30
visits member for 3 years
seen Nov 19 at 16:08

Background: masters in Geomatics and ICT from Norwegian University of Science and Technology (2009). Works as a GIS software/web developer. JavaScript and Python ninja, web mapping in OpenLayers and Leaflet. Knowledgeable about PostGIS and Geoserver


Oct
7
comment How do the equations/algorithms behind buffering tools actually work?
Just to be smirky: jsjts is really java implemented using javascript, so it's about the same ;)
Sep
2
reviewed Approve suggested edit on How to calculate distance from point to polygon with a time frame?
Sep
1
reviewed Approve suggested edit on What Open Source Packages are available to provide routing
Sep
1
comment How to calculate the Azimuth between two points in PostGIS?
Not an actual answer to your question, but since you mentioned "computing azimuth" and "JavaScript" I thought you want to look at github.com/atlefren/holsenjs, a port of Geodetic Fortran code to JavaScript. To compute asimuth between the points mentioned below: var holsen = new Holsen(); holsen.setEllipsoid('wgs84'); var asimuth = holsen.lgeo2(-0.730, 55.578, 37.062, 55.578).A1;
Aug
28
comment Is there a good GPS track analysis library?
Just a follow-up here: I've started porting this project to Python, using Shapely and GeoAlchemy (and Flask), it works but is rather slow at the moment. Code at github.com/atlefren/mineturer2 for the curious
Aug
18
awarded  Constituent
Aug
12
awarded  Caucus
Aug
11
reviewed Approve suggested edit on Why don't all the attributes in the SQL query appear in table?
Aug
11
reviewed Approve suggested edit on Can I set the max or min zoom on a CartoDB embed?
Aug
6
reviewed Approve suggested edit on How to hyperlink an attribute in ArcGIS stand-alone tables?
Jun
22
reviewed Approve suggested edit on Difference in vector / raster area measurements
Jun
4
comment How to insert coordinates to url
thanks for noticing! No, not really, I'm not an expert on this, so maybe pushState would be better?
Jun
4
revised How to insert coordinates to url
add missing +
Jun
4
answered How to insert coordinates to url
May
13
reviewed Reject suggested edit on QGIS display does not reflect projection
May
12
reviewed Approve suggested edit on How to add a WMS layer on Cesium Globe?
May
12
comment Function to add layer with button click
Learn Javascript. Understand why global variables is a bad thing, provide a minimal example. Study the docs.
May
12
comment Geoserver WFS POST and format_options=PRJFILEFORMAT
Regarding the namespace issue: as long as you go to the WFS-settings page for your namespace and check "Use ESRI WKT format for SHAPE-ZIP generated .prj files" box in the WFS-page in the geoserver GUI" there it's fine to use the namespace in the url
May
12
accepted Geoserver WFS POST and format_options=PRJFILEFORMAT
May
12
answered Geoserver WFS POST and format_options=PRJFILEFORMAT