postgis

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How do I query subset of columns from PostGIS using MyBatis?

I\'m trying to query data from a PostGIS database using MyBatis, ignoring the geospatial data. I have the following table in the database:[详细]

2023-04-13 09:58 分类：问答
How to create a polygon from a central point with GeoDjango

I want to create a polygon from a point and a radius. For example, I want to be able to give a point (latitude, longitude) with a given radius (ex. 10km) and calculate the circle and store it as poly[详细]

2023-04-13 04:25 分类：问答
Draw Camera Range with Postgis

i am working on some camera data. I have some points which consist of azimuth, angle, distance, and of course coordinate field attributes. In postgresql postgisI want to draw shapes like this with fun[详细]

2023-04-11 23:41 分类：问答
Error Saving geodjango PointField

I have a geo model with a PointField property. Everything works perfectly locally, but when I try to save an instance on the server, I get the following error:[详细]

2023-04-10 18:54 分类：问答
How can I load multiple gpx files into PostGIS?

I have a bunch of gpx files that come from GPSLogger for Android app. Files look like: <?xml version=\"1.0\" encoding=\"UTF-8\"?>[详细]

2023-03-31 19:35 分类：问答
What is ST in PostGIS?

Almost all the functions in PostGIS s开发者_如何学Gotart with ST. e.g. ST_Distance_Sphere, ST_GeomFromText, ST_Intersection, etc.[详细]

2023-03-31 19:07 分类：问答
django.contrib.gis.db.backends.postgis vs django.db.backends.postgresql_psycopg2

If a gis application has some tables which don\'t have gis related columns, does the performancebetter when use multiple databases (django.db.backends.postgresql_psycopg2 and django.contrib.gis.db.bac[详细]

2023-03-31 17:49 分类：问答
PostGIS Queries and Cayenne

I have just started evaluating the use of Cayenne for use with my PostGIS database.I found the CayenneModeler extremely easy to use in order to generate the code for my persistent classes.I thought th[详细]

2023-03-31 15:11 分类：问答
Unknown Django (Postgis) exception in Apache errorlog with no Email report

I am running several Django sites using Apache + mod_wsgi. Now, I\'ve just seen the following error in one of the Apache error logs:[详细]

2023-03-29 16:08 分类：问答
Convert regular Postgres Database into a spatial database

I have looked everywhere but most tutorials are for creating a spatial database. Is it possible to convert a regular Postgresql db into a spatial one?[详细]

2023-03-29 03:33 分类：问答