Changes between Version 24 and Version 25 of WKTRasterGSoC


Ignore:
Timestamp:
Jul 24, 2012, 8:30:48 AM (12 years ago)
Author:
pracine
Comment:

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  • WKTRasterGSoC

    v24 v25  
    3636    2) '''ST_AsDensity''' takes a point or line geometry coverage and first assign a count of those features to every pixels of a raster coverage and then apply a smoothing filter (using the existing one raster version of neighbour ST_MapAlgebra). [http://www.spatialanalysisonline.com/output/html/Pointdensity.html Density functions]  allow summarizing or simplifying a point or line dataset.
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     38    3) '''ST_Distance''' takes a point or a geometry coverage and compute a raster representing the distance to the nearest geometry. Another function ST_CostDistance() compute the smallest distance to the geometry following a cost raster. This project was [http://trac.osgeo.org/postgis/wiki/PostGIS_Raster_SoC_Idea_2012/Distance_Analysis_Tools proposed by Qing Liu and accepted by the GSoC program].
     39
    3840Want more details? Check the [http://wiki.osgeo.org/wiki/Google_Summer_of_Code_2012 OSGeo GSoC 2012 page] or write to the [http://postgis.refractions.net/mailman/listinfo/postgis-devel PostGIS developer list].
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