SpatiaLite is a spatial extension to SQLite, providing vector geodatabase functionality.

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45 views

Wrong output wth group by and aggregate function in spatialite

I have a grid and for every cell I want to set the column "landuse" according to the largest intersecting polygon. SELECT grid.PKUID, landuse.landuse, ...
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1answer
148 views

No module named pyspatialite- plugin:Qspatialite, OpenSUSE 13.1

I cannot run the plugin because of module missing. I can't find that module in the OpenSuse repository, and python community repository. I'm using QGIS 2,0 and OpenSuse 13,1 Where can I find ...
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2answers
464 views

How do I use the Natural Earth SQLite DB with QGIS?

I just downloaded the Natural Earth data in SQLite format from http://www.naturalearthdata.com/downloads/. I had assumed that this would be a SpatiaLite database, but it appears not to be! QGIS is ...
0
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1answer
641 views

How to build a Spatialite road network from OSM data

I'm looking for algorithm which could help me with building my own road network (for routing) from OSM data. I chose Spatialite DB for this, but here I have only one problem: Spatialite provides ...
3
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1answer
99 views

How to combine Spatialite Databases

I'm trying to combine a few Spatialite Databases into a single database, so that I can properly reference them, etc. I don't care about referencing them to one another (No foreign keys, etc), but I ...
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80 views

QGIS, SpatiaLite and GPS integration

I have QGIS an, access database and a Haicom gps all connected and running on a windows 8 machine. I want to integrate all 3 items so that while in the field i can enter information into the ...
3
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1answer
205 views

pyspatialite: Connot insert geometry

I'd like to insert a row with a point geometry with pyspatialite. The sql looks like this: insert into eqdata(origin_time, url, mag, lat, lon, depth, m_a, region, mt, the_geom) ...
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0answers
408 views

Building java based desktop map application using embedded database such as spatialite

I am relatively very new to building GIS based applications and have a very limited understanding in this area. So I need some help in building a java based desktop application which would generate ...
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1answer
429 views

special python library needed for spatialite?

It appears that pyspatialite is very outdated. Do I need a special library like pyspatialite in order to use the spatial functions of spatialite? Or can I just connect to the database via the normal ...
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26 views

The names of all the tables created are forced to be converted into lowercase in Pyspatialite 3.0.1

after the update of PYSPATIALITE from 2.3.1-3 to 3.0.1-1 in QGIS, the names of the all the table created by SQLite3 are forced to be converted into lowercase. After fallback to 2.3.1-3, the issue ...
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1answer
58 views

QGIS Save as Spatialite layer from FileGDB does not add OGC_FID

I have previously (yesterday) been able to save a Spatialite layer from a FileGDB feature class using the Right click/Save as... method in QGIS. Today, however, with no changes to any software (tried ...
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110 views

SQL procedure(s) to convert GPS traces to an ordered set of junctions in a network

I have three datasets that I have loaded into a geodatabase (spatialite or PostGIS): A set of GPS points collected from individual trips through urban areas. Points have a unique point id, a group ...
3
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0answers
136 views

Handling non-spatial data for QGIS projects with Camelot

Most of my projects include data which is non-spatial or which is point data and can be managed by a regular relational database. Previously I found Manifold and ms-access were a good combination ...
1
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1answer
213 views

Multiple input shapefiles for ogr2ogr sqlite spatial operations

I'm running up against an issue doing a spatial operation requiring multiple input shapefiles using ogr2ogr and sqlite. I have: ogr2ogr -f "ESRI Shapefile" output.shp input.shp -dialect sqlite -sql ...
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91 views

How to specify the version of output SQLite database in ogr2ogr?

I'm having issues with a .sqlite database that I generate from PostGIS using ogr2ogr. The data appears to export into SQLite properly, and it loads in TileMill fine, but when I try to add any of the ...
4
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2answers
177 views

can Well Known Text tables be used effectively, stored in Access or Base?

My question is: How do I import WKT text data back into QGIS, and how useful could Base or Access be in storing the data using WKT rather than spatially enabling it within a proper GIS database, like ...
4
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1answer
382 views

Can Spatialite SQL statements be issued with a python script in QGIS?

In my previous scripting environments (ms-access and Manifold GIS), it was possible to create and execute SQL queries from withing VBA or VB Script procedures. This is really useful for things such ...
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142 views

Using distance and transform from geomfromtext from postgis in spatialite

I have the following query which I want to apply on my from postgis to spatialite imported database. The problem is that the result of the distance is always null, while the other selected coloumns ...
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1answer
125 views

Can SQLite and SpatialLite files be linked

Coming from a ms-access background, it is common to split up larger applications into several database files. An ms-access database can then access data that is in another database via a linked ...
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4answers
564 views

How to merge close points into polygon?

I have a set of coordinates (points & no overlaps) in a single table,each containing attribute number fields,like in the following image. I want to merge these points into smallest polygons by ...
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2answers
101 views

SpatiaLite: Creating to, from nodes from a normal road layer (LINE)

Following this tutorial but using my own data. How do I create the from_node and to_node columns? I am using Spatialite and Sqlite3. I'd prefer to not use a gui as I'm working remotely via ssh on a ...
2
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1answer
205 views

Spatialite: Convert polygon to multi-polygons based on common field

I have a list of polygons which should be multipolygons: PK_UID | PolygonID | Geometry ------------------------------ 1 | 1 | polygon 2 | 2 | polygon 3 | 1 | ...
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208 views

Qgis 1.8.0 throws error “Can not find the entry point sqlite3_rtree_geometry_callback”

Loading QGIS on Window 8 causes this problem: Can not find the entry point sqlite3_rtree_geometry_callback in the procedure of dynamic loading C:\....\Quantum GIS Lisboa \ bin \ spatialite.dll ...
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1answer
102 views

SpatiaLite: dumpkml with name and description

How does one get the optional arguments in .dumpkml working? According to the .help .dumpkml should work like this: .dumpkml table_name geom_column kml_path [precision] [name_column] [desc_column] ...
3
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1answer
582 views

osm2pgsql loses connection at end of import for large PBF, north-america-latest.osm.pbf

I just wanted to check and see if anybody else out there encountered this issue before I started diving into the code. I'm using osm2pgsql to import OSM data into my Postgres database. I encounter the ...
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5answers
1k views

What are advantages of using spatialite over shapefile?

I found spatialite more useful than shapefiles as it does not have the limitations of shapefile and it is also portable. Many people here use shapefiles to exchange data and even the experts do not ...
3
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2answers
385 views

Is it possible to embed QGIS layer styles in a Spatialite database?

Spatialite is a great alternative to shapefiles - but how could I store the QGIS layer style together with the data so that it has a default style? For a shapefile I would just save a [name].qml with ...
8
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1answer
723 views

Is Read Only nature of SQLite support in ArcGIS for Desktop 10.2 documented?

I've recently started creating SQLite geodatabases using ArcGIS for Desktop 10.2 with both ST_GEOMETRY and SPATIALITE storage data types and was impressed by how easy this was to do. I then tried to ...
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206 views

How does Spatialite handle concurrent access?

I understand that Spatialite is meant to be used by a single user/machine at a time. However if the data is stored on server, there is no guarantee that someone on another machine will not also open ...
2
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2answers
104 views

How to hand over polygon attribute to new point while digitizing?

My task is to work with bird observation data in an area, that is divided into zones as different polygons (A1, A2, etc.). I have the hand-written lists of observations and want to bring all entries ...
2
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1answer
418 views

SQL to get points within certain distance

I got about 2 million points in a spatialite database would like to get which points are withina radius of 30 km from another point. All data is in WGS84 but I need distance in km. Also it would be ...
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1answer
297 views

QGIS - adding timestamps to spatialite data during data collection

I am trying to do field data collection using QGIS. One of the features that I regard as necessary for data management is timestamps. For example, a timestamp can indicate that an inspection record ...
6
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1answer
703 views

Is SpatiaLite or SQLite Spatial an Accepted Standard?

The reason why I ask this is because I have been undertaking some testing and have found that there seems to be many implementation and not all of them are interchangeable. For example: FME can read ...
0
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1answer
226 views

Linked point geometries to linestrings in Spatialite

I have been parsing Canada's radio system frequency open data. It's a single large table per province, containing point geometries for each station callsign. Where a point-to-point link is defined, ...
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2answers
343 views

How to speed up spatialite-query using spatialindex?

I have got 2 tables, one of type LineLayer called strlayer, the other one is a PolygonLayer called blayer. The LineLayer contains two rows called fromBland and toBland that should be filled with an ...
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173 views

Point in polygon analysis fails with “TypeError: arguments did not match any overloaded call”

I am using QGIS 1.8 on Windows 7 I want to perform a point in polygon analysis using the Vector > Analysis Tools menu. My point layer is the result of a SpatiaLite query which returns 10'000 points. ...
2
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2answers
264 views

How can I create a multipoint geometry in QGIS?

I've got a Spatialite layer in QGIS with geometry type MULTIPOINT. Now I'd like to add some data in this table in the 'usual' way, so by doing multiple clicks in the map (e.g. left-click, left-click, ...
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1answer
69 views

Spatialite equivalent of ST_MakeBox2D?

I'm a GIS newbie. I'm porting an app that uses PostGIS to SpatiaLite and wonder what the SpatiaLite equivalent of ST_MakeBox2D might be. Can someone point me to an example?
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1answer
160 views

Failed connection with .sqlite file in QGIS converted from osm by spatialite

I have converted a *.osm file to a *.sqlite file using the spatialite_tool i.e sspatialite_osm_map.. Now I want to view the map using QGIS. However, at the time of using the add spatialite table ...
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1answer
100 views

Integrating shapefile in spatialite DB with spatialite gui

For a project, i need a to display datas of a shapefile in an Android app (Geopaparazzi). I'm doing it by integrating the shapefile into a spatialite DB with spatialite gui 1.5 (1.6 having issues with ...
2
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1answer
131 views

QGIS and SpatiaLite database: Setting user access permissions

SpatiaLite databases seems to match all my desires to store GIS layers and table. But an important question is: is it possible to limit writing to only one user ? If yes, what is the way to do it? I ...
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1answer
480 views

Why doesn't SQL sum(dollar) work in SQLITE?

I've got a sqlite table with real numbers, two decimal place precision, in a mydollar_column. (There are no null values, but some of the values are negative numbers) For some reason, using sql on ...
3
votes
1answer
299 views

Why is Spatialite showing dates in MM-DD-YYYY format?

I have a table with a dates column that is formatted in MM-DD-YYYY format, as shown in SQL SELECT statements. I'm using Qspatilite (QGIS 1.8) and Spatialite GUI. When I ORDER BY the date column it ...
2
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1answer
183 views

Why are layers imported into a DB with Spatialite-Gui locked from editing?

I have a Spatialite DB which I have imported some shp files too using Spatialite-Gui. I have full read-write access to these layers via the Spatialite-Gui, however when I open these layers from QGIS I ...
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200 views

Spatialite, to speed performance, when should I create Views, Indexes or additional spatial tables?

I’ve got a large Spatialite database with a table of lines (roads, rail and water). I created a spatial index of the geometry to speed things up. This works amazingly well when I’m zoomed in ...
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1answer
358 views

spatialite.dll with Python and QGIS - the specified module could not be found

I'm having a bit of a nightmare getting to the bottom of this DLL loading problem. The stand alone script works absolutely fine but the exact same code does not work within QGIS. import sys from ...
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1answer
289 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 ...
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1answer
294 views

How to save a joined spatialite table when each table contains PKUID fields?

QGIS 1.8.0 -- QSpatialite 6.0.7 -- Windows XP I have spatialite tables joined together that I need to save as a single table, but an error-message says that QGIS can't save the table because there ...
0
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1answer
93 views

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 ...
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205 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 ...