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

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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 ...
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387 views

How to tell SharpMap to display polygons based on z-order?

I have a series of polygons which overlap in spatialite. Each has a an attribute providing it's z-order as well as the output color for that polygon. What do I need to do, processing-wise, to allow ...
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33 views

Only my geometry layers are exported from spatialite to postgis

I have a spatialite database (v4.1.1 / SQlite v3.7.17) consisting of one geometry table and several attribute tables linked to the geometry table by foreign keys. I want to export all tables to a ...
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49 views

Spatialite error: obsolete libspatialite

I am learning to use QGIS with the QGIS training manual (from the QGIS website). One of the excercises is to load vector data from a database (ch 3.1.3 in case you have the manual). When I try to do ...
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52 views

Is there a way to add an autoincrementing primary key field to an existing spatialite table/layer?

I know that I can add a new column to a spatialite table either through the Database Manager (Edit Table – Add Column) or through the Attribute Table – Field Calculator (create new field) but I don´t ...
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27 views

Get DE-9IM matrix in spatialite?

Is there a way to get the DE-9IM matrix between two geometries in a Spatialite function, analogous to the st_relate() function in PostGIS? (I find it very helpful to spatially join using intersect() ...
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139 views

PyQGis - Working with Spatialite

I wrote a Vector layer to a spatialite file/db using the dedicated API tool, using valid driver names supported formats by OGR. When connecting to that db, I can't retrieve properly the geometry ...
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188 views

Problem loading spatialite extension with sqlite3 Python connector

I am trying to load the Spaltialite extension using SQLite3 python module. I am getting the following error when I run my script. EOFError: [Errno 10054] An existing connection was forcibly closed ...
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115 views

Spatialite Table Difference in QGIS

I am see differences between tables when I view them in spatialite-gui and in QGIS. I have created a table, added columns, and updated the columns in spatialite-gui. Within spatialite-gui I can view ...
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590 views

Trying to install SpatiaLite 4.3 with SQLite 3.8 on Windows 7

I'm new to the open-source GIS database world, and am trying to have SpatiaLite installed on my Windows 7 machine. I downloaded SQLite 3.8.2 and unpacked the 3 files in a newly created folder ...
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2answers
150 views

sqlite version error with ogr2ogr

I am trying to randomly select some points from a shape file using ogr2ogr and an SQL query via sqlite but it seems to baulk at the sqlite version: ogr2ogr -sql "SELECT * FROM probe_2004to2012 WHERE ...
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238 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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78 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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103 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 ...
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511 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 ...
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378 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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328 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 ...
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361 views

How can a HTML table be stored within a database field as a BLOB, text or other value?

My Spatialite database has several thousand spatial polygon records In QGIS, each with a couple dozen field values. I also have many thousands more of additional tabular data relevant to those ...
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266 views

How to compile liblwgeom independently?

For using liblwgeom function in spatialite, I need to compile the library. I found that it is included in the PostGIS code. My question is, how to compile the library without compiling the whole ...
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101 views

Python error when running SpatiaLite with OSGB(27700)

I have a project open in QGIS and am trying to import an Ordnance Survey Address Point layer into SpatiaLite. I have recently installed the Qspatialite plugin. I open SpatiaLite in the DB Manager ...
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327 views

How to Make QGIS on Windows use Spatialite 3.0 instead of 2.4?

I spent all afternoon trying to figure out why my complex triggers are working fine in Spatialite-GUI but QGIS refuses to write to the layer. Finally remembered I ran into a similar issue a few ...
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1k views

How to get libspatialite.so file for spatialite

I am creating an application using spatialite database. I checked couple of tutorial from internet. Most of them explains the same. But the problem is I need "libspatialite.so" extension library. I do ...
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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 ...
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59 views

Simplifying geometries and calculating non-spatial averages

I'm quite new to using proper spatial tools, and have a simple question that doesn't immediately show up on google. I have a table that contains multiple rows of empiric data (say, speed of a ...
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58 views

Loading SQLite extensions in QGIS

I have an extension which can be loaded in SQLite using the load_extension function. It would be useful for me if I could load it in QGIS to use in queries made via Database Manager. The Python ...
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95 views

Can't install pyspatialite with python3 and sqlite3

I can't install pyspatialite. When I try it gives me this error: pip install pyspatialite Downloading/unpacking pyspatialite Could not find a version that satisfies the requirement pyspatialite (from ...
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46 views

What causes this error when loading plugin

After installing pyspatialite on my Mac two plugins fail to load with this error:: This plugin is broken invalid literal for int() with base 10: '2-spatialite' I am fairly sure that the offending ...
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69 views

What is format of Natural Earth SQLite database GEOMETRY column?

I need to extract coordinates of polygon boundary points in order to draw a map in my application. Does anyone know what is format of "GEOMETRY" column in this database? It doesn't look like .SHP ...
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16 views

Count gaps between polygon in spatialite

I have a database (.db) with a table that contains thousands of polygons containing id and geometry. I like a query that can get me the 'number of errors where there are gaps between polygons". How ...
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46 views

Spatialite database creation problem (QGIS DB manager)

I am trying to create a Spatialite database in QGIS 1.8.0. Step one of instructions is: Right click on the Spatialite entry in the Browser tree and select Create Database. The Spatialite icon is ...
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55 views

joining polylines on geometry and attribute

I have dowloaded an Open street Map shapefile containing streets and their attributes, for my whole country. I have qgis and spatialite_gui and a very basic understanding of SQL The problem I have is ...
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Differences between PostGis and SpatiaLite [duplicate]

I am working on spatial data where there is quite a lot of data (mainy data from GBIF for people who know it). It is not so complicated analyses (I am not Gis Expert!). I am currently working with ...
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205 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, ...
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71 views

Spatialite android trigger problem

I am developing an android application that uses the database spatialite, I use this project to integrate the database on android https://code.google.com/p/spatialite-android/ It works normally, ...
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70 views

Problems with connecting QDateEdit and QTimeEdit widgets to corresponding Field in QGIS Layer (shp/spatialite)

Could anybody give me a hint how to connect the QDateEdit and the QTimeEdit widgets with a field in a QGIS layer (shp or spatialite). The fields in the QGIS layers are from datatype "date" ...
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93 views

How to build a query tool for spatialite data in QGIS?

I am trying to build some tool for a collegue of mine to query data from a spatialite database while clicking on vector features. My first guess is, that I could do this with an "action" I define for ...
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147 views

How to create a spatial view when allowing multiple selection in qgis’s edit widget “value relation”?

I've a point layer in qgis and serveral non spatial tables in a spatialite database. In qgis the fields were filled using the edit widget "value relation" (multiple selection allowed for some fields). ...
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115 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 ...
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237 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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308 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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103 views

About spatialite views and Attribute table

I try to use views with spatial column in spatialite. I can connect to spatialite database and load the layer without problems but when I try to view data in Attribute Table I can't get eny data; all ...
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43 views

spatialite sql and possibly using case

i have a database that has got tables with images and some of the tiles for the images is repeated and i want to eliminate the duplicates based on which imagery is oldest so as to remain with the ...
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66 views

rasterlite build issues

i am able to build rasterlite library but when it is building .exe for tools(rasterlite_load) it gives linking error for external symbole SPLite3 like this rasterlite_load.obj : error LNK2019: ...
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590 views

Inconsistent Spatialite Update Behavior; SRID not allowed?

I have two tables: crime and (police) stations. The latter has only 4 records with (name, lat, lng) fields. The former has over 500K records with two California Zone 2 (ft) coordinate columns named ...
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160 views

How to retrieve the value of a cell in RasterLite?

Just wanting to know the SQL statement needed to find out the pixel value for a location, when the raster is loaded into SpatialLite as a Raster? I loaded the Raster using rasterlite_load -d ...
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Have I created a valid Spatialite database?

I didn't manage to find the better way to populate the exisiting Spatialite database with new computed data than just creating new columns and filling them in the Python script. You can see that the ...
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158 views

QGIS 2.0, SpatiaLite: labels disappear after setting data defined position (x,y)

I added to my SpatiaLite table (.osm-import with the "standard" QGIS-OSM-Plugin) two empty columns x and y (double) to define manually the position of my labels (data defined labeling). But after ...
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243 views

Using the API of QSpatiaLite plugin

I am using the popular QSpatiaLite plugin for QGIS. Since I am creating and modifying SpatiaLite tables directly with Python (using pyspatialite), I wonder whether I can automate tasks such as ...
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73 views

QSpatiaLite query syntax

Using the QSpatiaLite plugin in QGIS I composed the following query SELECT 'AddressPoint_2'.'buildingNu', 'AddressPoint_2'.'postCode' WHERE 'AddressPoint_2'.'postCode' = 'NR13 3AA' FROM ...
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307 views

Problem in Spatialite database creation

When I try create a new DataBase, Spatialite plugin return the dialog error box: The SQL query seems to be invalid. no suck table: views_goemetry_columns When I click in OK button, a second dialog ...