File Access
OpenEV supports a number of raster and vector file formats for display. The
File->Open action will check to see if the selected file is a shapefile
(ends in .shp) and if so attempt to load it as a new vector layer. If not, it
will attempt to open it as a GDAL supported file format (listed below), and
display it as a raster layer. If this fails, the optional OGR library is
tried to see if it is another supported vector format.
Note that the File->Import action only operates on GDAL supported raster
files. Vector files cannot be "imported".
Supported Raster Formats
OpenEV uses
GDAL (Geospatial Data Abstraction
Library) for accessing raster files, so any file formats supported by GDAL
should be supported by OpenEV. The original, and authoritative list of
GDAL
Supported Formats should be checked for a current format list, and
details of each format.
| Long Format Name |
Code |
Georeferencing |
| Arc/Info Binary Grid
| AIG
| Yes
|
| CEOS (Spot for instance)
| CEOS
| No
|
| First Generation USGS DOQ
| DOQ1
| Yes
|
| New Labelled USGS DOQ
| DOQ2
| Yes
|
| Military Elevation Data
| DTED
| Yes
|
| Eosat Fast Format
| EFF
| No
|
| ESRI .hdr Labelled
| EHdr
| Yes
|
| Arc/Info Binary Grid
| GIO
| Yes
|
| TIFF / GeoTIFF
| GTiff
| Yes
|
| Erdas Imagine .hfa
| HFA
| No
|
| Atlantis HKV Blob
| HKV
| Yes
|
| JPEG JFIF
| JPEG
| Yes
|
| Atlantis MFF
| MFF
| Yes
|
| PCI .aux Labelled
| PAux
| No
|
| Portable Network Graphics
| PNG
| No
|
| USGS SDTS DEM
| SDTS
| Yes
|
| SAR CEOS
| SAR_CEOS
| Yes
|
Supported Vector Formats
OpenEV includes builtin support for reading and writing ESRI Shapefiles.
This is a widely used file format for simple vector features with attributes,
including support for points, polylines and polygonal areas (potentially
with holes).
Additional formats can be read via an optional linkage to the OGR
vector library, providing support for formats such as Mapinfo, SDTS, S-57,
Tiger, and NTF.