postgis

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Problems with dealing with Geometry end WKBwriter on JTS

I\'ve just started with geometries and I\'m getting some really odd errors. I\'m trying to create a WKB inside my java code with an specific SRID.[详细]

2023-03-08 03:32 分类：问答
saving user input to a postgis table strategy

I have openlayers, geoserve开发者_StackOverflowr and postgis/postgres working quite nicely.I\'m trying to create an app that allows a user to add a point to a map.After the point is created, I need a[详细]

2023-03-02 04:36 分类：问答
What database should I use that would best suit my GIS application?

I am currently in the process of developing a program and not sure where to go from here... I am using Visual C# and the DotSpatial frawework in order to do the GIS/GPS side of things but am unsure o[详细]

2023-03-01 06:00 分类：问答
Efficient query to locate centroid of clusters in postgis?

I have a spatially-distributed collection of entities E stored and spatially indexed in a PostGis database.[详细]

2023-03-01 05:41 分类：问答
PostGIS SQL query and invalid geometries

I have a postgis database imported with osm2pgsql. Obviously there are lots of invalid geometries which leads to errors with some spatial operations.[详细]

2023-03-01 04:01 分类：问答
django - python

I am very new to django, python and ubuntu command line. I\'ve been installing an application on PC\'s and this is my third one. Ive come across this error and am not sure where else to look. When I r[详细]

2023-02-28 08:44 分类：问答
In PostGIS a polygon bigger than half the world is treated as it's opposite

I\'m using GeoDjango with PostGIS and trying to use a polygon to get records from a database which fall inside it.[详细]

2023-02-27 05:13 分类：问答
GeoDjango project missing fields from database schema

I\'ve created a Django project, using a PostGIS backend, which all seems well as far as I can tell. I\'ve now created an app in this project as follows:[详细]

2023-02-23 05:49 分类：问答
How should I set the source_srs parameter of LayerMapping() in GeoDjango for the 2000 Census data?

I\'ve downloaded 2000 Census zipcode polygon data as a .shp file from http://www.census.gov/geo/www/cob/z52000.html#shp[详细]

2023-02-22 07:52 分类：问答
pg_dump not using $libdir on Linux for postgis

I\'m using pg_dump to backup a PostgreSQL (9.0.3) + PostGIS (1.5.2) database that contains several GB of pre-calculated static geographic data. The PostGIS functions are included in the output file.[详细]

2023-02-16 14:28 分类：问答