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

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QGIS Spatialite multi-part editing

I'm exploring Spatialite, about which I know very little but trying to change that. I have started recording a walking route. On Days 1 & 2 I did the same route so copied the polyline feature ...
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14 views

What is the ogr2ogr syntax for exporting from Oracle to Spatialite?

I want to export data from Oracle to spatialite, 3 tables with geometry and 1 attribute table. Alternatively, I already have this data written out nightly using ogr2ogr, but the output location is a ...
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2answers
39 views

Find centroids of rows with Multipoint Geometry

I wish to find the centroid of a set of given points. The points will be rows of my SpatiaLite database and have Multipoint geometry. I checked the SpatiaLite manual but the ST_Centroid function I ...
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1answer
9 views

InitSpatialMetaData errors with Spatialite

This Stackexchange may not be the best place for this question but I will start here. I am trying to create a spatially-enabled, sqlite3 database. The following code is a short example of what I am ...
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44 views

QGIS managing relationships

Coming from an ESRI background I'm used to ESRI geodatabases (.mdb or .gdb). In those databases, I could create feature classes, tables and relationships between them. Every time I loaded a feature ...
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4answers
76 views

merge overlapping polygons with spatialite

The green points, buffered by one of the point attributes, should result in the three areas outlined in red (a table with three rows): I'd like to do it in spatialite. How can I do that? If it's ...
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40 views

How to use ST_VoronojDiagram for points that are almost aligned?

I am trying to use the spatialite ST_VoronojDiagram function on a table containing four 4 points that are almost aligned: (1.01 2.02, 2.02 3.03, 10.01 10.02, 11.01 11.02). I wrote the following script ...
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1answer
23 views

Spatialite union more than two layers / tables

Is there a way to union or collect any number of layer geometries with Spatialite (or another spatial database)? Two is simple enough, but more than that becomes convoluted. For example, if all I want ...
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1answer
26 views

Create lines between two points, given an ID

I have a spatialite point table (p1) with an additonal column (pid) that relates each point to a point in another point table (p0) in the same database. I want to create a line between every pair of ...
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32 views

Finding point on line closest to other point: unexpected results [closed]

I'm basically trying to do the same thing as outlined here: Finding the point closest to a point on a near feature However, the results I'm getting with the queries suggested in the accepted answer ...
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1answer
52 views

Qgis 2.14 & spatiaLite : MakeLine and aggregate function

I want to create a line between points 104 and 74. This works : select 1 as axe, make_line(p1.geometry, p2.geometry) as geometry from MR200_amers_plan p1, MR200_amers_plan p2 where p1.matricule = ...
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22 views

How to publish layer from spatialite store in GeoServer

I've installed Spatialite extension on GeoServer(2.8.3) successfully. I created a new Spatialite database (*.sqlite file) and loaded some sample shapefiles into it. Then I added a new Spatialite data ...
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1answer
53 views

Connecting to a spatialite DB, querying, writing the queried result to a spatialite table using PyQGIS

I am developing a plugin that connects to a spatialite DB , do some queries and outputs the results to a spatialite table. I had tried with the below code to connect to the DB and print the queried ...
2
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1answer
28 views

QGIS 'Save As' to Spatialite is changing integers into strings

Using QGIS 2.14.0, Windows 10, when I use 'Save As' to save a polygon shapefile as a Spatialite layer (all options left as default), all of the input integer fields are incorrectly output as text ...
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0answers
44 views

How to speed up work with local maps in QGIS?

within one project we are distributing a QGIS project including offline maps (you can get it here - has about 1GB) to display measurement data. Looks this way: I need to keep it as easy as possible ...
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16 views

Using SpatiaLite with Clion

What is the easiest way of importing the SpatiaLite (C++) with the Clion IDE ? I have been trying all sorts of different ways, but nothing seems to work. Does anyone know how ?
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2answers
41 views

Converting SpatialLite.Core.API.IGeometry to GeoAPI.Geometries.IGeometry

I have an in-house .NET library which processes geometry data in GeoAPI form (https://github.com/NetTopologySuite/GeoAPI). Within this library I have a method which I need to call which is expecting a ...
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1answer
45 views

How to get the long/lat information from a NodeID and vice versa

In the SpatiaLite website they explain how to use .osm data to create a SpatiaLite database, that contains a single table, where each row is an arc of the road graph. Then, they explain the procedure ...
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1answer
62 views

The reason why dataset does not create layer

I have a plugin written in Python, and two versions of the QGIS, assembly there are differences, but the main suspect, that the version of GDAL==2.0.0dev (1) another 1.11.3 (2) for first ...
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1answer
27 views

Count polygons that intersects polygon in Spatialite

I am trying to do a very simple query, but keep getting an error. I am looking to get the count of polygons that intersect with another polygon. I've used the following query: SELECT feature__1 AS ...
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45 views

How to use SpatiaLite functions in a Python script?

I'm trying to find the intersection coordinates between a line (knowing its start and end points) and a polygon (SQlite file). I've managed to make it work in QGIS by creating a shapefile for the ...
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1answer
24 views

ST_Union returning Null with Spatialite, even after ST_MakeValid

I am attempting to run ST_Union on some features in a GROUP BY Spatialite query, with the aim of counting the number of features, and the total area of those features, which may overlap so should not ...
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1answer
74 views

How to create a new database in spatialite and insert the data using python in Qgis

I want to create a new database in spatialite and want to connect to the database and execute the sql queries. conn = db.connect('myDB.sqlite') # creating a Cursor cur = conn.cursor() sql = 'select * ...
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13 views

loading SpatiaLite tables with WHERE clause with pyqgis

the question is very simple. I have some layer in a SpatiaLite database that I want to filter and load in QGIS through pyqgis. From the pyqgis cookbook I read that it is possible to add a WHERE ...
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1answer
56 views

How to manage QGIS styles saved in Spatialite

At QGIS 2.14 the style files we have saved in our Spatialite database do not show the labels anymore. Luckily I have the Layer Definition Files saved that still display the labels, but in trying to ...
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50 views

convert GPS coordinates to SRID coordinates in spatialite

The following query fails for me: select account_nu, srid(geometry), AsText(Geometry) from tbl where contains(geometry,MakePoint('35.16604','-101.8635',4326)); I would like to find shapes that ...
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30 views

AutoNumber in Spatiallite

I have a spatiallite database. In this database I have some attributes. One of them is the attribute Nr_. In this attribute the value must be assigned automatically and is not allowed to be a double. ...
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1answer
34 views

QGIS crashes (dumped crash) while importing SHP layers or SpatialLite

I meet problems with the last version of QGIS (Lyon 2.12.3) 64bits on Windows 7. The software crashes as soon as I load a SHP layer or use SpatiaLite layers (created from OSM data). Besides, each ...
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1answer
52 views

QGIS convert long integers stored as string to integer [duplicate]

I have long integers (11 characters) stored as text in a shapefile that I need to convert to integers, but when I attempt to convert them in the QGIS field calculator, I get the following error: Eval ...
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1answer
42 views

Foreign Key error, creating new splite db?

Attempting to use a plugin in QGIS (midvatten) that utilizes splite. I am attempting to create a db in a different EPSG than the plug in defaults to, im getting "foreign key constraint failed" as my ...
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20 views

Null output from Transform function of Spatialite

I am using Spatialite, an extension of SQlite and I have some problems running the transform function. According to the Spatialite functions page ...
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1answer
151 views

Join by attribute / spatialite with SQL / left outer join in QGIS

I have a layer with polygons (let's call it "woods") that is intersected by "n" line-objects ("roads"). Every road has an unique attribute roadid. I need to add ALL the roadid's (not only the first ...
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1answer
66 views

Creating SpatiaLite View in QGIS?

Using these instructions (there are several other examples to find, all look the same and all of them seem to work) http://www.gaia-gis.it/gaia-sins/spatialite-cookbook/html/sp-view.html "Hand-writing ...
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1answer
60 views

Editing Spatialite layer in QGIS gives “Problem deleting features” error

I started off with an OSM file and used QGIS to convert into a Spatialite database. QGIS is able to load and display the tables just fine but when I try to delete a feature all I get is a "Problem ...
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85 views

Arcpy doesn't recognize spatialite tables after editing with QGIS

I'm working on a project that would like to use spatialite as a go-between for field edits using QGIS/IntramapsRoam and then loading the data to a file geodatabase. The workflow is as follows ...
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1answer
37 views

Trouble saving graduated color style in Spatialite db in QGIS

When I attempt to save a style with graduated colors for a vector layer in a Spatialite db, I receive the following error: Error looking for style. The query was logged I had success saving ...
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1answer
121 views

Spatialite not loaded in PHP5 on Ubuntu

I'm trying to install Spatialite (4.3.0a) on Ubuntu (14.94.2 LTS) ..... I'd like to use it with PHP (5.5.9-1) .... Following this post ...
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1answer
37 views

Geometry column read as Numeric after operation in SpatiaLite (QGIS)

Pretty weird problem with SpatiaLite used within QGIS (2.13) with the DB Manager. I have 2 layers (result of the same algorithm) and I use this function to merge them in a new table: CREATE TABLE ...
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1answer
74 views

How configure Spatialite for PHP Version 5.6.14 (on Windows 7 and Apache 2.4)?

I'm on Windows 7, using PHP Version 5.6.14 on Apache 2.4 and I'm trying to access to a Spatialite database. All works fine when execute "no spatial" SQL query in my PHP procedure but when I try to ...
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79 views

Using peewee ORM with spatialite databases?

I would like to use the peewee orm in front of some Spatialite databases. Getting peewee to connect to a Spatialite database was relatively simple, and basically boiled down to: class ...
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1answer
97 views

Raster data QGIS and SpatiaLite?

I am a german student and study Geoinformatik. I have the task to store Raster data in SQLite. So use the turotial from the gaia page to Create a database and store a image (TIFF) named NaturalEarth. ...
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1answer
52 views

Spatialite function to generate a blob from a geometry

Using QGIS Python API, I want to avoid updating geometry with an UPDATE sql command. Why? I'm using a QSqlRelationalTableModel (see model-view programming if curious) and there are built-in editing ...
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2answers
143 views

Merge single points to multi point geometry

Is it possible to transform a point shape file in single part geometryy to a shape file with multi point geometry based on a attribute. e.g. in the shape are 50.000 records in 700 categories, now i ...
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2answers
260 views

ogr2ogr without spatialite support - How to fix it?

I am trying to use ogr2ogr to convert OSM data from pbf to spatialite. I used to do so with the following command: ogr2ogr -f "SQLite" -dsco SPATIALITE=YES png-full-last.db ...
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1answer
245 views

Connecting QGIS, SpatiaLite and Python?

I am trying to connect with python code, QGIS and Spatialite, to do SQL query. I have read some tips and I tried with this code, but no add anything. Any Idea? uri=QgsDataSourceURI() ...
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1answer
113 views

How to convert a complex project of shape files to a spatialite database?

We have a QGIS project made of ~10 shape file layers. The layers are saved on a shared server, and the project is used on different computers. Recently polygons and polylines have been been ...
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1answer
57 views

Open Street Map export to QGIS Lines not Polylines

I recently updated to QGIS 2.10.1 and have found that I can no longer view .OSM files. Before I simply dropped and dragged downloaded .OSM files into QGIS and it automatically split into four ...
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161 views

Has API been written for SpatiaLite for Cordova?

I am creating an app in which I will be creating an AutoCAD model for a 3 floor building at my college. I'll be importing this model as a spatial object into my javascript app - then wrap it with ...
2
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1answer
304 views

Loading mod_spatialite using sqlite3 for Python in Windows

I have been successfully using the mod_spatialite extension for sqlite in Linux for a while now, but a client wants an application that relies on mod_spatialite to work in Windows. I have extracted ...
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31 views

What is the quickest way to find in which plots a set of points lie?

I know this sounds easy and lazy to ask, but I'm new to (spatial)database, and I have the feeling my solution is sub-optimal. But for my situation it's important to have good performance. What do I ...