Raster formats
Raster files are bit-mapped images, that is, images defined as a matrix of pixels. Supported image file formats are detailed below.
Note:
- While every effort has been made to support the most common raster image file formats, you may come across a format which cannot be displayed. In this case, use an image conversion tool (such as IrfanView™ ) to convert the image to a supported file format.
- This help topic refers only to raster image and grid files. Unlike raster image files, vector data files define spatial or geographic features (shapes, lines and points) which are stored as an ordered sequence of coordinates. Common CAD vector file extensions include DXF and DGN. ArcView Shapefiles and MapInfo TAB files are common GIS vector file formats.
- You can display or import data stored in a variety of CAD, GIS and GPS vector file formats.
- If an image is of a large size, it can be converted to a compressed JPEG2000 (.JP2) format. The JPEG2000 format is widely used and supported by other packages. During the conversion process, the original image file is copied and compressed. The copy uses the original filename (without the file extension) appended with a .JP2 file extension.
The following grid file formats can be opened as images in Vizex:
| Format | File Extension |
|---|---|
| MrSID | SID |
| JPEG2000 | J2K, JP2, JPC, JPX |
| Virtual Raster | VRT |
| JPEG File Interchange Format | JPG, JPEG |
| Tagged Image File Format | TIF, TIFF |
| Band Interleaved | BIL, BIP, BSQ |
| Graphics Interchange Format | GIF |
| Windows Bitmap | BMP |
| Enhanced Metafile | EMF |
Grid (Raster) Files
The following grid file formats can be opened as images in Vizex, or be imported as a Grid (*.GRD) file using the Import | Grid (Raster) Data function on the File tab, in the Import group:
| Format | File Extension |
|---|---|
| Esri Arc/Info ASCII Grid | ASC |
| Esri Arc/Info Binary Grid | ADF |
| Esri .hdr Labelled | BIL, FLT |
| ERMapper | ERS |
| Golden Software ASCII/Binary/Surfer 7 Grid | GRD |
| Grid eXchange File | GXF |
| SRTM HGT | HGT |
| Minex Grid | grid |
| GeoTIF | TIF |
| Carlson Grid | GRD |
| ASCII Gridded XYZ | XYZ |
| USGS SDTS DEM | DDF |
| USGS ASCII DEM / CDED | DEM |