Friday, 2 November 2018

How to display a PostGIS table on Google maps?


I am attempting to take a shape file and display it on a map:


I can do something like this:


SELECT ST_AsText((ST_Dump(the_geom)).geom) as the_geom FROM shapes;

But the problem is I still have to do a lot of parsing of the data to get it to display on a google map. Is there a way to do this easily via google's javascript api?



Answer



GeoJSON seems to be a good way to deliver what your asking.


enter image description here


"This simple demo shows mountain backdrop preservation areas. We're using the showAll parameter since there are only a handful of features and there's no sense re-fetching features with each map pan or zoom."



http://geojason.info/google-vector-layers/demos/postgis-restful-web-service-framework/


No comments:

Post a Comment

arcpy - Changing output name when exporting data driven pages to JPG?

Is there a way to save the output JPG, changing the output file name to the page name, instead of page number? I mean changing the script fo...