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

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2
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2answers
52 views

In QGIS how do I edit/save data which has no geometries?

In QGIS I can import data tables (CSV in particular) which have no inherent geometry (and no lat/lon columns) into QGIS. There doesn't seem to be any obvious way to manipulate that data (edit/save). ...
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1answer
22 views

Buffer View With SpatiaLite and QGIS

Creating a dynamic buffer with PostGIS the following view is working: CREATE VIEW buffer500m AS SELECT gid, st_buffer(geom,500)::geometry(polygon,31492) AS geom FROM point; Unfortunately this query ...
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0answers
25 views

what is the shape of the data that saved in GIS files ? [on hold]

i want to know the shape of the data that stored in GIS Raster Files like GeoTIFF,ADRG,etc.. , and the data that stored in GIS Vector Files like Spatialite , ... ?? in deep view to this files
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0answers
7 views

Dump a GeoJSON FeatureCollection from Spatialite query with Python

Given a Spatialite database, holding a table with a geometry column and some other attribute columns. I want to query that table in a Python script and get a GeoJSON FeatureCollection string in return ...
0
votes
1answer
27 views

Insert Geopandas GeoDataFrame into Spatialite database

Is it possible to insert a Geopandas GeoDataFrame directly into a Spatialite database with Python so that the geometry column of the GeoDataFrame becomes a proper geometry table in the database which ...
2
votes
1answer
178 views

Added columns in SpatiaLite wont appear in QGIS (attribute table)

I have a SpatiaLite Database with OSM-Data from planet osm (imported with the OSM import tool from QGIS2.0) Everything is fine so far. I can create, export, delete tables and draw them in qgis... but ...
3
votes
1answer
378 views

Configuring spatialite database access for Python 2.6.6

I'm working on a GIS project, and I would like to implement and test some geo-spatial algorithms in Python. For this purpose, I will not only need sqlite, but also spatialite, in order to store and ...
2
votes
1answer
47 views

Is there Data Loader for QGIS or Spatialite?

Is there a tool that works like the data loader of ArcGIS for QGIS (or via Spatialite )? To integrate data in a database or a shapefile without having the same structure (and the tool allows to ...
0
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1answer
24 views

Map Positioning and Routing on Android

I have been instructed to create an small offline application in Android that have to: a) Use our own map in JPEG format as the basemap (Google Map / OpenStreet Map is not applicable) b) Show the ...
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0answers
33 views

Something changed in QgsVectorDataProvider().changeAttributeValues() in QGIS 2.8?

I have a plugin that works with QGIS 2.2 but does not work with 2.8. Only deleteFeatures() works fine, but changeAttributeValues(), changeGeometryValues() and addFeatures() not. I receive r == False ...
2
votes
2answers
47 views

Is a multi-database select possible with DB Manager?

I have data in two locations: geometry data (with attributes) on a PostGIS server (read only) a geometryless table on a local SpatiaLite DB (read+write) I need to select features based on data ...
0
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1answer
29 views

ogr2ogr Spatialite to csv very slow

I am using ogr2ogr to extract point data from a Spatialite db to a csv file:- ogr2ogr -f "CSV" commandtmp.csv dtm2.sqlite -lco GEOMETRY=AS_XYZ -progress -explodecollections the Spatialite db is 7GB ...
1
vote
2answers
515 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 ...
2
votes
1answer
147 views

How do I link OGR with spatialite?

Problem & Evidence: I'm trying to create a spatialite file with the code snippet below. However the outDataSource object gets assigned NoneType and all subsequent (unshown) code fails. I'm ...
2
votes
1answer
22 views

Spatialite, NULL when using Distance

When using Spatialite, I cannot run a Distance query. I've tried investigating the data stored in the database, however it doesn't appear to be related to my database. If I run a Distance query on two ...
0
votes
1answer
144 views

Can't build x64 SQLite with spatiaLite

I need a spatial-enabled SQLite solution for a x64 Windows application I am developing. I have examined and downloaded and attempted to compile the SQLite amalgamation package; I've looked at the ...
4
votes
2answers
418 views

How to add a geometry to an existing feature that was created with NULL geometry?

I have a simple SpatiaLite geodb loaded in QGIS with one table. There is a POINT geometry field and some alphanumeric data. In some cases I can record data about a specific site, but the coordinates ...
1
vote
1answer
58 views

Is there a way to save a spatial join as .sqlite?

I'm joining data from PostGIS and SpatiaLite databases in QGIS using the "Join attributes by location" (Vector -> Data management Tools) tool. However, this has a big limitation - I can only save the ...
0
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0answers
15 views

Showing large number of polygons in SpatiaLite on Android map?

I have 2,300 complex multipolygon features in an offline SpatiaLite database. How can I show them on an Android map without slowing the map to a halt?
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0answers
29 views

How to overwrite/change attribute values with QspatiaLite in qgis 2.6

I tried to work on the "tbl_datum_transform" table which is included srs.db data file. Just to let you know... i try to fill in the ntv2 - BETA2007 grid. How can i fill in something in the ...
2
votes
1answer
138 views

Layer with custom UI not working properly

I have a problem with QGIS 2.4 when introducing layers with a custom UI. More precisely, widgets such as CheckBoxes are not recognised as such (appear as Text Edit in Attributes) and the corresponding ...
2
votes
1answer
47 views

How to delete a column from the attribute table of a SpatiaLite layer?

I want to delete a column from Attribute table but the function "Delete columns" isn't highlighted. (When I am adding new layers I use New SpatiaLite layer, not Shapefile layer). So I have installed ...
0
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0answers
21 views

High-performance k-nearest neighbor MBRs from given point using spatialite?

I've built an 2-dimensional spatialite db with millions of polygons inside. What I want to do is to find the polygon which is the nearest from given (x,y) coordinate. This is what I want to do. ...
0
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1answer
46 views

How can I load sqlite file into oracle 11g?

I have SQLite file which I have taken it from Sptialite DB. I need to convert this file into SDO. Plz help me
1
vote
1answer
83 views

Adding Nodes to Linestrings at Overlapping Points with Polygon Layer in Spatialite

I have two Spatialite tables. A table called 'lines' which contains a PK column called OGC_FID and a LINESTRING column called GEOM. A table called polys which contains a PK column called OGC_FID and ...
1
vote
1answer
36 views

Loading multiple SpatiaLite layers into a single database

I have many SpatiaLite layers, each in a separate database. I want to load all these SpatiaLite layers into a single database. How can this be done?
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0answers
18 views

Newline appears after when converting shapefile to spatialite

I converted a layer from a shapefile format to spatialite. A line is added in the spatialite layer but record is not created in the attribute table (similar to multipart geometry). Shape file to ...
0
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2answers
35 views

Not able to load a DEM raster into Spatialite

I am using Spatialite to store a DEM raster with terrain values (GMTED2010 from Nasa). To be more precise, I am using the version: spatialite_gui-1.7.1-win-x86.zip plus rasterlite_load ...
5
votes
2answers
172 views

Defining spatial operators (Equals, Disjoint, Touches, Within, Overlaps, Crosses, Intersects, Contains, Relate)?

Ok, I have to admit, I don't really delve too deep into the semantics of the spatial operators list below, I'm more of a user, I write software to drive the SQL most of the time and don't really think ...
1
vote
1answer
256 views

Import Shapefile into Existing Spatialite Table

I am working with a Spatialite database and a series of shapefiles. I have an empty spatialite table that has geometry and columns. What I would like to do is to load the shapefiles into the ...
0
votes
1answer
20 views

which spatial server goes better with raster images stored in DB Spatialite?

I would like to serve images from Spatialite as WMS services. As far as I know: Geoserver is compatible with vector features only -if you install the extension-, but not with spatialite BLOBs (in ...
2
votes
2answers
164 views

spatialite - azimuth function not available

I am working with last spatialite versions on both Windows (7) and Ubuntu (13.10). I installed these from reference spatialite website. For both, version that I downloaded is 4.1.1 (nevertheless in ...
2
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0answers
26 views

geodjango difficulties with srid

I'm trying to make geodjango app. I'm using SQLite and SpatialLite. I want to add shops, and be able to sort them from closest to furthest from my location. When in my model I have: location = ...
3
votes
2answers
216 views

Incorrect display of national characters from Spatialite in QGIS, Windows

I used this tutorial by underdark (thanks much :-) ) to convert my area of interest from OSM file (whole Czech Republic downloaded from Geofabrik.de server). Used OSGEO4W shell (saying "GDAL 1.11.0, ...
1
vote
1answer
88 views

How to Set SRID in Spatialite

How do you update the SRID in a SpatiaLite table? I am using the QspatiaLite plugin or the SpatiaLite_Gui program to send this SQL to the table: UPDATE myTable SET geom = SETSRID(geom,26910) ...but ...
1
vote
1answer
334 views

Create Buffer in meters Spatialite query

I am new to Spatialite. I have following query: select A.* from linka as A, pointa as B where Contains(Buffer(B.Geometry, 100), A.Geometry) Here, A.Geometry = LINESTRING(23.2161 69.95237, ...
0
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0answers
19 views

Running SQL on already opened SpatiaLite database

I am updating a plugin in QGIS 2.2 and would like to run sql on a SpatiaLite layer (nodes). The database is already loaded and the table is loaded as a vector layer in QGIS. Is there a way I can ...
2
votes
1answer
64 views

Creating Spatialite DB from Swedish OSM

Good afternoon, I have just started to use GDAL/OGR and I am trying to create a spatialite DB from OSM data. I am using a cut of the Swedish OSM data downloaded from Geofabrik in .osm format. I have ...
2
votes
0answers
212 views

Performance issue with SQLite + Spatialite + C#

I am having a performance issue with SQLite database (.db) which extends to SPATIALITE I am trying to update Geometry of 1,00,000 records in database (.db) which taking around 50 minutes. Too much ...
1
vote
1answer
13 views

Can't understand Return value in gaiaLineLocatePoint_r

I am trying to develop a C application that finds the nearest point on a linestring from another point, in spatialite. I found the two API's gaiaLineLocatePoint_r and gaiaLineLocatePoint , but I am ...
4
votes
2answers
435 views

Binding between QGIS custom form (Qt Designer) and date/time field in a SpatiaLite database table

For my attribute table I created a custom form in Qt Designer. The table has a date field and a time field. In Qt Designer there are widgets for entering date and time. But what data type is expected ...
14
votes
2answers
2k views

How to turn sqlite lat/lon columns to spatialite geometry?

I have a sqlite database with a table that has a column for longitude and one for latitude. Is there a way to make this data base 'spatial'?
2
votes
1answer
53 views

Why can't I add a Spatialite table with clip results in QGIS?

I have 2 layers and I want to make a clip of layer 1 with layer 2 in SpatiaLite (I'm using the DB Manager within QGIS). That's the code I'm using: create table clipped_lines as select * from lines, ...
3
votes
2answers
500 views

What's a good way store borehole data in SQLite / SpatiaLite?

I have a bunch of bores / wells with downhole data. The 'header' info for each borehole can easily go into a single table, but I'm wondering how best to store the downhole log data. Typically they are ...
0
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0answers
37 views

QspatiaLite Snapping fails if multiple target vertices within tolerance distance

I assumed that SpatiaLite's Snapping would snap to the nearest candidate vertex - however, it turned out that the result becomes unpredictable, if there are several target vertices within tolerance ...
4
votes
1answer
144 views

ST_Touches function in Spatialite

I'm a newbie to Spatialite so forgive me if the answer to my question is obvious...(I tried looking online but couldn't find the answer to this question). I am trying to use the function ST_touches in ...
2
votes
3answers
62 views

Need to extract OSM data for my area from 2 neighbor countries

I need to prepare offline background data for my area of interest which is located around border between Czech Republic and Germany. I need to convert the OSM data to spatialite and then to use in ...
3
votes
0answers
92 views

Preserve datatypes when using SQLite and QGIS

Following Nathan's SpatiaLite/DBManager solution in this answer, I find that once the layer is loaded from DB Manager into QGIS (2.6.1), any calculated fields are appearing as text values instead of ...
1
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0answers
21 views

SpatiaLite / QspatiaLite: get subgroup row ids

I'm using QspatiaLite plugin to join polygon ids to points that are within those polygons. Now I' d like to get subgroup rownumbers for each subgroup of points with same polygon id! Like so.. grp_ID ...
9
votes
3answers
277 views

A global, grid-like projection for creating heatmaps

I'm putting together an application where I need to create a vector grid which will be used to store and display a heatmap. It has the following requirements: Can cover the entire planet. The vast ...