SpatialLite 2.3.1 and RasterLite 1.0 Released

Posted on 6 July 2009 by

Alessandro made two announcements today. First SpatiaLite 2.3.1 has been released. Changes include:

* including SQLite v.3.6.16
* including GEOS.3 1.1
* added SQL version functions: spatialite_version(),
proj4_version(), geos_version()
* added SQL functions: IsTiffBlob(), IsWaveletBlob()
[RasterLite compatibility]
* now supporting the ‘F’ (float) datatype for DBF
[while reading some Shapefile]

bug fixes:

* fixed a stupid initialization bug disabling MbrCache
* fixed a stupid initialization bug disabling VirtualFDO
* fixed some EXIF and EXIF-GPS inconsistencies
* fixed incorrect SRID handling for PointN(), GeometryN() ..
* fixed a nasty error [causing a crash] while parsing
degenerated WKT geometries (single-vertex LINESTRING …)
* fixed some ./configure oddities
[--with-proj-include, --with-geos-include]
* and many others …

Also from Alessandro, RasterLite 1.0:

today I released RasterLite, a really simple SpatiaLite-based C API [and related command-line management tools] supporting Raster Data Sources in a SpatiaLite DB.

RasterLite implements TILING and multi-level PYRAMIDS, and take full profit from RTree-based Spatial Indexing.

Individual tiles can be stored at your choice as:
TIFF [supporting monochrome CCITT FAX-4 compression]
PNG [loseless compression]
GIF [loseless compression]
JPEG [lossy compression]
WAVELET [lossy compression]

As from my preliminary testings, RasterLite is able to handle really huge Raster Data Sources [several GB-sized] in a really efficient and painless way.

You can find a tutorial explaining in depth how to use the following popular publicly available satellite imagery and DEMs:
- TrueMarble 250m/pixel world coverage
- ETOPO5 wold coverage
- SRTM 90m/pixel world coverage

Information on both can be found at the SpatiaLite web site.

About Bill Dollins

I've been designing and implementing geospatial systems since the early '90s, using both commercial and open-source technologies. I am available for consulting and can be contacted via the e-mail address on the 'About' page.
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2 Responses to SpatialLite 2.3.1 and RasterLite 1.0 Released

  1. Regina says:
    15 July 2009 at 06:33

    Bill,

    This is pretty cool. I wonder if there will be some useful integration features with the PostGIS WKT Raster initiative.
    http://trac.osgeo.org/postgis/wiki/WKTRaster

    I’m really hoping to be able to use SpatiaLite/RasterLite, as a detachable mini vehicle to a PostGIS install for emergency response and so forth (kind of like those enterprise spaceships that release miniature space ships for exploratory work).

    Thanks,
    Regina

    • Bill Dollins says:
      15 July 2009 at 09:10

      Regina,

      I am looking at the same type of thing. I think it’s an ideal solution for a mobile “check-out/check-in” kind of workflow.

      Bill

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