Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.
3
votes
1answer
107 views
Shapefile postgis database to be queried by GeoDjango
I would like to create a Postgres database (postgreslq-9.1 and postgis-2.0.2) storing several shapefiles but I am uncertain on how to implement it so I'm searching for some advices.
I have already ...
2
votes
1answer
53 views
SpatialRefSys as foreign key
Using the working stuff reported here, I've written the following django model:
from django.contrib.gis.models import SpatialRefSys
class LandCover(models.Model):
shp_name = ...
1
vote
1answer
75 views
Mapnik - Weird tiles rendering when used with spatialite
I use Mapnik in an GeoDjango App with Spatialite 4.0 as backend. There is something weird with the tiles that I suspect might be related with a bad handling of mbr with spatialite.
If you look at ...
1
vote
1answer
133 views
Polygon intersection with bounding box with polygon's holes intact
I am trying to serve GeoJSON FeatureCollection tiles with each feature's geometries trimmed to the tile boundary.
I am working on a Leaflet plugin to re-assemble the geometries. It works by building ...
0
votes
1answer
23 views
Mapnik - Error on rendering linestring
I am using Mapnik 2.0.1rc0 on a Windows 7 with python 2.7 32bits inside a GeoDjango App using xml. The datasource come from spatialite 4.0. My tiling script can render polygon and point features ...
3
votes
0answers
148 views
How to handle updates to pgRouting network in webmapping environment?
I'm building an application for a client of mine that will need to create routes in a PostgreSQL database.
So far so good, but I need to support edits and changes to my network and I need to support ...
1
vote
0answers
14 views
django floppy forms geospatial widgets error
I'm trying to define a view that lets the user edit the data in the database, I'm using floppyforms, because of its geodjango widgets which is part of the form that i would want the user to use for ...
1
vote
0answers
35 views
Problems combining (union) Multipolygons in geodjango
I'm using geodjango and postgis (1.x),
What is the best way to combine (union) a list of multipolygons.
in what i assume is rather inefficient i'm looping trough like this
combined = multipolygon
...
1
vote
0answers
113 views
Get the distance between 2 WGS84 GEOSGeometries
I currently want to check if 2 given GEOSGeometry objects of type Point are within 100m of each other. (length flexible)
Looking at previous asked questions on this topic, most of the answers were ...
1
vote
0answers
75 views
GeoDjango / PostGIS - Cut geometry by bounding box
I am looking for a solution to retrieve the geometry(ies) from a polygon/multipolygon within a bounding box in a GeoDjango application.
The application I am developing has a requirement to serve out ...
1
vote
0answers
196 views
How to Modify Polygons in GeoDjango?
Just getting acquainted with GeoDjango. Have Basic Tutorial app created with sample world data. In trying out the admin, I appreciate seeing the polygon on the map and a couple basic tools for adding ...
0
votes
0answers
2 views
Geodjango InspectDB Fails on Postgis Raster_Columns View
I'm trying to generate models for an existing Postgresql database using the Django InspectDB command. Models are produced but a failure occurs on the raster_columns view. The error is: Exception: ...
0
votes
0answers
32 views
mapnik error - fatal flex scanner internal error--end of buffer missed
I am using Mapnik 2.0.1rc0 on a Windows 7 with python 2.7 32bits inside a GeoDjango App. I often got this error: fatal flex scanner internal error--end of buffer missed that makes python to crash ...
0
votes
0answers
30 views
Geodjango - User's uploaded shapefiles and model creation
I have a big interrogation about how it could be possible to have a GeoDjango app that can store in database the uploaded shapefiles (or other geospatial files) from users. When you load shapefiles in ...
0
votes
0answers
46 views
Dynamic feature creation moves feature on zoom
I've been trying to create a feature programatically in OpenLayers, but the feature moves to 0,0 whenever I zoom in or out.
This is just an ajax request, that filters a bunch of points using their ...
0
votes
0answers
44 views
Missing tiles when django application is hosted on an apache server
I'm building a GIS application using Django as my web framework and OpenLayers to implement a slippy map interface. I was initially using the django runserver for development and everything was ...
0
votes
0answers
69 views
Address parcel search in geodjango admin
When adding a feature in geodjango admin, the ability to zoom to a typed in address or parcel would be most efficient. Not sure what options are available.
I'm presently using olwidget within admin. ...
