postgis

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Incorrect data by osm2pgsql for multipolygons

I try to convert Europe OSM data to my postgis database and observe that some countries like Greece or Russia are imported incorrectly.[详细]

2023-01-23 11:42 分类：问答
Coordinates conversion

I am working over a small component for a web portal that show polygons over a map, using OpenLayers,Google Maps, and another proprietary source .[详细]

2023-01-21 04:54 分类：问答
Adding data to multiple records

I have a project with various parts.... One of which is the calculate the area of all the polygons on a map.When I run the query \"select st_area(nycpp.the_geom) from nycpp;\"I get a list of all the a[详细]

2023-01-21 00:10 分类：问答
PostgreSQL+PostGIS function that gives angular seperation for a pair of (lat,long) points

I wrote the following code (after spending a few hours trying to get the quoting correct): CREATE FUNCTION ast3angsep(double precision, double precision, double precision, double precision) RETURNS d[详细]

2023-01-17 15:34 分类：问答
GIS: PostGIS/PostgreSQL vs. MySql vs. SQL Server? [closed]

Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing[详细]

2023-01-17 04:30 分类：问答
I want to edit corresponding postgresql data of a vector from openlayers- how to do it?

I want to edit the corresponding text/numeric data type columns of a vector through openlayres, when a user click/mouse over a vector. l开发者_JS百科ike,[详细]

2023-01-14 18:54 分类：问答
Geography mode distancies in GeoDjango - PostGIS 1.5

I st开发者_StackOverflow社区ore a PointField field named \"coordinates\" in a model. Then, I consult nearest instances from a given one, in the command interpreter, and print its name and the distanc[详细]

2023-01-14 14:36 分类：问答
tinyows fid returned as table_name.null?

i am trying to use tinyows for wfs-t in my app along with openlayers and postgis. i am using osm tables and myown tables for storing geom.[详细]

2023-01-14 10:40 分类：问答
How do I supply a British National Grid reference as WKT to GeoDjango?

I\'m trying to insert some National Grid references into a Django PointField defined as follows: oscode = models.PointField(srid=27700, null=True, blank=True)[详细]

2023-01-12 04:14 分类：问答
How to import Lat/Long data into PostgreSQL

PostgreSQL / Django / newbie here. I\'ve got a bunch of JSON data with venues and lat/long information, and I\'m looking to import it into my database. So far I\'ve fenagled a script to format my JSO[详细]

2023-01-10 15:39 分类：问答