|
FME Format Type Identifier |
ERS |
|
Reader/Writer |
Both |
|
Typical File Extensions |
.ers |
The ERS format is a raw format that uses a header file (*.ers) and a data file, which can have different extensions. The header file contains information about the data itself, like the number of rows and columns, the data byte order, etc., and about the raster itself, like georeferencing information, cell spacing, and ground control points (GCPs). The data file normally contains only plain data, without any header or information on how to interpret it.
The ERS format supports Nodata values, although the current FME implementation only supports reading Nodata values, not writing them. The format also supports storing rotation as an angle, which will be ignored by FME upon reading, and applied to the raster upon writing, which might imply slight data loss or distortion.
Using ECW Files
An ERS file using an ECW file as data will not work properly. In this case, you can open the ECW file directly with FME; however, you will not get all the metadata contained in the ERS file itself.
ER Mapper ERS Product and System Requirements
|
Format |
FME Platform |
Operating System |
||||
|---|---|---|---|---|---|---|
|
Reader/Writer |
FME Form |
FME Flow |
FME Flow Hosted |
Windows 64-bit |
Linux |
Mac |
|
Reader |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Writer |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Reader Overview
FME considers a single ERS file to be a dataset.
Writer Overview
The ERS writer creates and writes data into a single folder specified by the Dataset parameter. The ERS writer distinguishes duplicate output files by appending numbers to the filenames.
FME Raster Features
FME raster features represent raster data and use several concepts that are unlike those used in the handling of vector data.
For comprehensive information about how FME processes raster data, see Rasters.
ERS supports rasters with an arbitrary number of bands, provided all bands are the same data type and no band has a palette.