I am working on a field survey and a client requirement is to differentiate various norths, like magnetic north, true north and grid north. My question is what is the methodology of calculating north and how can we differentiate various type of north as above mentioned.
Subscribe to:
Post Comments (Atom)
-
Im having a problem toggling the visibility of map layers in pyqgis (2.4). I have a simple interface, just the map canvas, no legend, and ba...
-
I have a single table of over 1000 polygons in postgreSQL (with PostGIS), and I have a field "evaluation_type" that only receives ...
-
I want to create a center line for a river (polygon). I thought about simply creating a new line manually, but it would be a long and imperf...
No comments:
Post a Comment