Detail publikace

Designing a New Raster Sub-System for GRASS-7

Originální název

Designing a New Raster Sub-System for GRASS-7

Anglický název

Designing a New Raster Sub-System for GRASS-7

Jazyk

en

Originální abstrakt

The paper deals with a design of a new raster sub-system intended for modern GIS systems open for client and server operation, database connection and strong application interface (API). Motivation for such a design comes from the current state of API working in GRASS 6. If found attractive, the here presented design and its implementation (referred as RG7) may be integrated to the future new generation of the GRASS Geographical Information System version 7-8. The paper describes in details the concept of raster tiling, computer storage of rasters and basic raster access procedures. Finally, the paper gives a simple benchmarking experiment of random read access to raster files imported from the Spearfish dataset. The experiment compares the early implementation of RG7 with the current implementation of rasters in GRASS 6. As the result, the experiment shows the RG7 to be significantly faster than GRASS in random read access to large raster files.

Anglický abstrakt

The paper deals with a design of a new raster sub-system intended for modern GIS systems open for client and server operation, database connection and strong application interface (API). Motivation for such a design comes from the current state of API working in GRASS 6. If found attractive, the here presented design and its implementation (referred as RG7) may be integrated to the future new generation of the GRASS Geographical Information System version 7-8. The paper describes in details the concept of raster tiling, computer storage of rasters and basic raster access procedures. Finally, the paper gives a simple benchmarking experiment of random read access to raster files imported from the Spearfish dataset. The experiment compares the early implementation of RG7 with the current implementation of rasters in GRASS 6. As the result, the experiment shows the RG7 to be significantly faster than GRASS in random read access to large raster files.

BibTex


@article{BUT76476,
  author="Martin {Hrubý}",
  title="Designing a New Raster Sub-System for GRASS-7",
  annote="The paper deals with a design of a new raster sub-system intended for modern GIS
systems open for client and server operation, database connection and strong
application interface (API). Motivation for such a design comes from the current
state of API working in GRASS 6. If found attractive, the here presented design
and its implementation (referred as RG7) may be integrated to the future new
generation of the GRASS Geographical Information System version 7-8. The paper
describes in details the concept of raster tiling, computer storage of rasters
and basic raster access procedures. Finally, the paper gives a simple
benchmarking experiment of random read access to raster files imported from the
Spearfish dataset. The experiment compares the early implementation of RG7 with
the current implementation of rasters in GRASS 6. As the result, the experiment
shows the RG7 to be significantly faster than GRASS in random read access to
large raster files.",
  address="NEUVEDEN",
  chapter="76476",
  edition="NEUVEDEN",
  howpublished="print",
  institution="NEUVEDEN",
  number="1",
  volume="6",
  year="2011",
  month="december",
  pages="11--30",
  publisher="NEUVEDEN",
  type="journal article - other"
}