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Standard File Formats

Read and write data in ASCII, GeoTIFF, KML, shapefile, and world file format


arcgridreadRead gridded data set in ArcGrid ASCII or GridFloat format
sdtsdemreadRead data from SDTS raster/DEM data set
sdtsinfoInformation about SDTS data set
worldfilereadRead world file and return referencing object or matrix
worldfilewriteWrite world file from referencing object or matrix
getworldfilenameDerive worldfile name from image filename
geotiff2mstructConvert GeoTIFF information to map projection structure
geotiffinfoInformation about GeoTIFF file
geotiffreadRead GeoTIFF file
geotiffwriteWrite GeoTIFF file
kmlwriteWrite geographic data to KML file
kmlwritelineWrite geographic line data to KML file
kmlwritepoint Write geographic point data to KML file
kmlwritepolygonWrite geographic polygon to KML file
gpxreadRead GPX file
makeattribspecAttribute specification from geographic data structure
shapeinfoInformation about shapefile
shapereadRead vector features and attributes from shapefile
shapewriteWrite geographic vector data structure to shapefile
makedbfspecDBF specification from geographic data structure
imreadRead image from graphics file
imwriteWrite image to graphics file


RPCCoefficientTag Rational Polynomial Coefficients Tag


Export Vector Geodata

You can export geodata as a shapefile, which can be exchanged between different geographic information systems. You can also create KML files to upload geodata to the web.

Export KML Files for Viewing in Earth Browsers

Keyhole Markup Language (KML) specifies how a set of geographic features should be displayed in "Earth browsers."

Select Shapefile Data to Read

You can import a subset of elements in a shapefile by filtering elements according to attribute names and values.

Functions That Read and Write Files in Compressed Formats

Geospatial data are frequently stored and transmitted in compressed or archive formats that can be accessed using standard functions.

Featured Examples