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文件名称: 图论中间件技术学习:raster
  所属分类: 其它
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  文件大小: 4mb
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  上传时间: 2019-08-10
  提 供 者: weixin_********
 详细说明:NULL 博文链接:https://flyqantas.iteye.com/blog/2216451Espai Virtual Oracle GeoRaster roadmap deimos 10gR1(2003) First version interleaving Georeferencing Pyramids Raster loader, viewer and exporter 10gR2(2005) Raster compression/decompression Geo Raster objects in other schemas Enhaced geoRaster tools 11gR1(2007) Automatic DML trigger creation SDO GEOR ADMIN Bitmap masks NODATA ranges Empty raster blocks Random blocking size New functions, procedures and other features 11gR2(2009) Java APl GCP Support Raster reprojections Optimized blocking Grid interpolations Polygon-based clipping in queries New functions, procedures and other features FOSS4G 2010 Barcelona 2010VCDTI Cen ro para el Desarrollo Tecnologico industrial spaa PostGIS WKT Raster roadmap deimos 0.1.6d(Feb2009) First version Type definition Canonical input/output GIST index support Raster loader (gdal2wktraster) 0.1.6k(Aug2010) Get/set raster properties Intersect raster&geometries Register out db rasters Get metadata for raster and bands Convert between world and raster coords Set and know true nodata values Get/Set pixel values GDAL r/o basic driver 0.24(Pred.Nov2010) Set raster rotation Reproject rasters Export raster to standard formats Validate raster data Topological operators MapAlgebra, reclassify Edit raster data on db Full GDAL driver http://trac.osgeo.org/postgis/wiki/wktraster/planningandFunding FOSS4G 2010 Barcelona 2010VCDTI Cen ro rara el desarrollo Tecnologico industrial Espai Virtual Main characteristics: Data type deimos Oracle GeoRaster: 2 related data types BLOB Eeoraster column block cell sp。 GEORASTER table SDO RASTER table PostGIS WKT Raster: 1 data type Raster pIxel Reuter eder Antar eat Ra时 tr column WKT Raster table FOSS4G 2010 Barcelona 5 2010VCDTI Cen ro para el Desarrollo Tecnologico industrial Espai Virtual Main characteristics: Georeferencing deimos Oracle Geo Raster SDO GEOR&STER table R aster d SDO RASTER Georef inform ation Georef infomation Georef, information Raster data ≤ DO RASTER t C路ih是 只 aster data D。 RASTE PostGis WKT Raster 尺 aster tat|e 尺 aster column GEonet inta ≤t≌ t dat e武 P【d改 FOSS4G 2010 Barcelona 6 2010VCDTI Cen ro para el Desarrollo Tecnologico industrial Espai Virtual Main characteristics: Indexing deimos Oracle GeoRaster: Creates a spatial index(R Tree index on the spatial extent of the GeoRaster object PostGIS WKT Raster: Creates a GiST index on the raster column using convex hull FOSS4G 2010 Barcelona 7 2010VCDTI Cen ro para el Desarrollo Tecnologico industrial Espai Virtual Main characteristics: Pyramids deimos Oracle geoRaster: Reduced-resolution versions of rasters can be generated using 5 resampling techniques. The pyramids are stored in the same raster data table as the geo raster object with the same srs than the original one PostGIS WKT Raster: GDAL-provided pyramids are generated on loading time at desired levels. The pyramids are stored in different tables than the original raster FOSS4G 2010 Barcelona 8 2010VCDTI Cen ro para el Desarrollo Tecnologico industrial Espai Virtual Main characteristics: Metadata deimos Oracle GeoRaster: metadata are part of the SDO GEORASTER object, and follow a XMl schema PostGIS WKT Raster: The metadata is packed with the raster data, like the georeference information Only basic metadata is stored (upper left corner, width, height, pixel size, skew, srid and numbands) FOSS4G 2010 Barcelona 9 2010VCDTI Cen ro para el Desarrollo Tecnologico industrial tana Main characteristics: Open specs deimos Oracle GeoRaster: the specs for sdo georaster and SDo RASTER objects are open this is really important to allow third party tools to provide capabilities not implemented in the server, like spatial analysis. PostGIS WKT Raster: Uses WKT/WKB format for representing data Is a open specification too FOSS4G 2010 Barcelona 10 2010VCDTI Cen ro para el Desarrollo Tecnologico industrial
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