GeoTiff raster file

Touchstone Re supports import of GeoTiff raster files as map layers.

You can then visualize your exposure data with the imported map layers and run geospatial analyses with the map layers.

You can import multi-band (for example, Landsat) or single-band (for example, DEM) GeoTIFF files into Touchstone Re. However, you can import only one band from the source file at one time; you select it from a list.

You can import files with the following extensions. TFW, XML, and AUX XML are required for spatial data references. TIFF files without projection information are not supported.

TFW

Used for plain text files that store X and Y pixel size, rotation information, and world coordinates for a map that is stored as a TIFF image. The extension is a world file and is used to geolocate the raster.

OVR

Used for binary files that store external overview data.

XML

Used for XML-formatted text files that store spatial reference information and metadata in ESRI format.

AUX.XML

Used for XML-formatted text files that store spatial reference information and metadata in the PAM format. Also stores information that is not normally encoded in the header, such as raster statistics, color maps, and pointers to the pyramids file (.rrd).

Non-TIFF files

These are optional and must be saved in the same directory as their accompany map images.

You can import projected GeoTiff files.

Table 1. Support for Raster Cell Types

Supported

Not Supported

Byte

Unknown data type

Unsigned Int16 (unsigned short)

Complex Int16

Int16 (short)

Complex Int32

Unsigned Int32 (unsigned integer)

Complex Float32

Int32 (integer)

Complex Float64

Float 32

Float 2 (double)