Contents
- 1 How to load Esri shape data into SpatiaLite?
- 2 How to ignore an error in SpatiaLite database?
- 3 Which is listener is responsible for loading SpatiaLite?
- 4 How to run SpatiaLite from the command line?
- 5 Is there a GUI for the SpatiaLite database?
- 6 Which is the latest version of SpatiaLite driver?
- 7 Which is better SpatiaLite GUI or SpatiaLite GIS?
- 8 Which is the closest model to PostGIS SpatiaLite?
How to load Esri shape data into SpatiaLite?
Most if not all MassGIS data is in this particular projection. The easiest data to load into SpatiaLite is to use the ESRI shape data loader packaged with the SpatiaLite gui. From the SpatiaLite gui –> File -> Load Shape file and browse for TOWNS_POLY.shp and type in 26986 for SRID. Type in the_geom for field name.
How to ignore an error in SpatiaLite database?
This is done by calling SpatiaLite’s InitSpatialMetaData function: Note that this operation may take some time the first time it is executed for a database. When InitSpatialMetaData is executed again it will report an error: You can safely ignore that error.
What do you need to know about SpatiaLite?
SpatiaLite sweetens this little database by allowing you to store geometries and query them with spatial functions similar to what you would find in PostgreSQL/PostGIS, Microsoft SQL Server 2008, MySQL, IBM DBII, Oracle Locator/Spatial.
Which is listener is responsible for loading SpatiaLite?
The listener is responsible for loading the SpatiaLite extension, which is a necessary operation for using SpatiaLite through SQL. At this point you can test that you are able to connect to the database: You can also check that the gis.db SQLite database file was created on the file system.
How to run SpatiaLite from the command line?
Before working from the command line, we need to open a terminal window: System Tools -> LXTerminal. In the terminal open a sample database with spatialite by typing: Helpful commands from the command line: Let’s create a new, empty spatialite database, and load two shapefiles from the north_carolina dataset:
What does an R-tree do in SpatiaLite?
An R-Tree basically stores the bounding box of the geometry as the index. For large complex geometries unfortunately, this is not too terribly useful. SpatiaLite 3.6+ as mentioned has R-Tree indexes The most common queries we will be doing on this query are spatial queries and queries by the town field.
Is there a GUI for the SpatiaLite database?
Spatialite-gui provides a visual interface for viewing and maintaining a spatialite database. You can easily see the structure of the tables and data contents using point and click functions, many of which construct common SQL queries, or craft your own SQL queries. Open the Spatialite GUI by selecting Geospatial->Databases->Spatialite GUI.
Which is the latest version of SpatiaLite driver?
The latest binary distributions of QuantumGIS (as of this writing QGIS 1.4+) now have the SpatiaLite driver built in. You can also use the latest Spatialite-gis minimalist, which has viewer and shapefile importer packaged in. Latest version is 1.0 Alpha and binaries available for Windows, Linux, and Mac OSX.
How to get started with the SpatiaLite GUI?
Installation is simple. — just download and extract and run the GUI. Extract the spatialite-gui.
Which is better SpatiaLite GUI or SpatiaLite GIS?
Note you can use spatialite-gis to view and import tables, but the spatialite-gui gives you ability to do free SQL queries, but not as good viewing features, while the spatialite-gis can create a new database, import and can show you a whole map, but has limited filtering. We’ll cover spatialite-gis graphical tool in the next tutorial.
Which is the closest model to PostGIS SpatiaLite?
In terms of the model it uses, it seems closest in syntax to PostGIS and in fact modeled after PostGIS and also piggy-backs on GEOS and Proj.4 like PostGIS.