GIS-Datei-Format

Siehe auch

• Geodaten
• Grafikformat

Rasterdatei-Formate

ASCII Grid (.grd)

Refers to a specifc interchange format developed for ARC/INFO rasters in ASCII format. The format consists of a header that specifies the geographic domain and resolution, followed by the actual grid cell values. Usually the file extension is .asc, but recent versions of ESRI software also recognize the extension .grd.

Es können Werte von entweder integer (+/- 2 Milliarden) oder Float (+/- 10E38, 15 Digits) verwaltet werden.

Links:

• http://docs.codehaus.org/display/GEOTOOLS/ArcInfo+ASCII+Grid+format
• http://www.safe.com/support/online-documentation/ReadersWriters/ReadersWriters.htm#esriasciigrid_-_esri_ascii_grid_reader_writer.htm

Description:

The numbers of rows and columns are defined in the Grid NDX, NDY fields of the corresponding windows.

This format is used to export distributions in a ArcInfo compatible ASCII grid format. Cell Origin 0 or 0.5.

Syntax:

 ncols [number of columns]
 nrows [number of rows]
 xllcorner [x coordinate of lower left corner]
 yllcorner [y coordinate of lower left corner]
 cellsize  [cell size in meters]
 nodata_value [value which will be used if no data in grid cell; default is -9999]
 row 1 
 row 2
 ...

Vektordatei-Formate

alphabetisch.

CSV

.csv oder andere (.txt)

DXF

• .dxf
• .dwg

GeoRSS

• .rss: GeoRSS Simple/RSS
• .atom: GeoRSS Simple/Atom
• auch .xml

GML

Geography Markup Language

• .gml
• auch .xml

INTERLIS

• .ili: Datenbeschreibung (ASCII)
• .itf: INTERLIS 1-Format ITF (ASCII)
• .xml: INTERLIS 2-Format (XML)
• .uml: UML/INTERLIS-Format (XML)

KML

.kml .kmz

Mikroformate

• .html

Siehe http://microformats.org/wiki/geo

Shapefile

• .shp Ein Shapefile besteht aus einem zwingenden Paar mit Endung .shp und .dbf. (siehe auch unten).

ESRI GIS-Datei-Formate

ESRI-Formate und ihre Extensions:

• .aep = ArcExporer-Projekt-Datei
• .shp: The Shapefile contains the geospatial data (Shapefile, Shape).
• .shx: The SHX file contains the index of the geospatial data (derived from shp).
• .dbf: The DBF file contains the attribute data in dBASE format.
• .prj: The PRJ file contains the coordinate system information (optional).
• .avl: The AVL file contains the legend information (optional).
• .sbn/.sbx: The SBN and SBX files contain the spatial index of the geospatial data (optional).
• .xml: The XML file (*.shp.xml) contains the metadata describing the data set (optional).
• .grd: ASCII Grid (siehe oben)
• .tfw, .jgw: Siehe World file.

ArcExplorer kann ArcView-Projekte darstellen: .aep = ArcExporer-Projekt-Datei

Weblinks

• GIS-Datei-Format auf Wikipedia