Tagged Questions

0
votes
0answers
40 views

How to modify the coordinates of a SHP geometry using Geotools?

I have a shapefile with some polygons. I would like to change the height for this elements using Java. The rest of the attributes should be the same. I've thought using GeoTools but I haven't found ...
1
vote
1answer
41 views

Postgis invalid geometry from shape file

I'm having trouble converting a Feature class (shape file) to a DB table (Postgresql 8.4/Postgis 1.5). This is the command in the pg log: INSERT INTO "public"."distritos" ("Shape" , "DEPARTAMEN" , ...
0
votes
1answer
67 views

ST-Links convert Feature Class to DB Table error

I'm using ArcMap with the ST-Links SpatialKit Conversion tool to convert a Feature Class to a DB Table. But I'm getting an error: ERROR: 42601: type modifier is not allowed for type "geometry". I ...
13
votes
5answers
320 views

What in-depth spatial database systems tutorials exist?

Is there a good tutorial that explains in depth the internals of a GIS and a spatial database system such as PostGIS with examples and without any background assumption? I'm specifically looking for ...
8
votes
3answers
6k views

How to convert .shp to .csv including attributes AND geometry?

I have a .shp file with 60k+ entries, all of which are polygons with corresponding attributes (acreage totals, landowner names, tax ID #s, etc.). What I ultimately need is a .csv file with all of ...
8
votes
2answers
3k views

Cutting up a shape file into smaller parts

I've downloaded the 350MB coastline shape file from Openstreetmap, but I really would like to work with a small part of them, is there a way to generate a shapefile of a small area. I'm using MacOSX ...
4
votes
2answers
801 views

create temporary point geometry feature from coordinates in OGR with Python

I have two shapefiles containing two types of geometry features: one contains polygons and the other linestrings. Because I'd like to use the Within method to check whether the end(or start) of a ...
10
votes
2answers
3k views

Point (of a linestring) within Polygon using ogr and Python

I'm currently working on a project in which I need to build a topological network out of the geometry features I find in shapefiles. So far using Ben Reilly's open source project I've managed to ...