Compressed DLL files for Windows (Feb. 24, 2002)
xbit76e.zip (374k) - XBIT free version for Tcl7.6p2/Tk4.2p2
xbit80e.zip (373k) - XBIT free version for Tcl8.0.5/Tk8.0.5
xbit81e.zip (372k) - XBIT free version for Tcl8.1.1/Tk8.1.1
xbit82e.zip (373k) - XBIT free version for Tcl8.2.3/Tk8.2.3
xbit83e.zip (372k) - XBIT free version for Tcl8.3.3/Tk8.3.3 

Compressed DLL files for PC Linux (i386) (Feb. 24, 2002)
linux225-15-xbit76e.zip (394k) - XBIT free version for Tcl7.6p2/Tk4.2p22
linux225-15-xbit80e.zip (394k) - XBIT free version for Tcl8.0.5/Tk8.0.55
linux225-15-xbit81e.zip(394k) - XBIT free version for Tcl8.1.1/Tk8.1.11
linux225-15-xbit82e.zip (394k) - XBIT free version for Tcl8.2.3/Tk8.2.33
linux225-15-xbit83e.zip (394k) - XBIT free version for Tcl8.3.2/Tk8.3.22 

Compressed libraries, documents, and bitmaps
xbitlib.zip (98k, Feb. 24, 2002) - Tcl script library files for XBIT application
xbitdoc.zip (250k, Feb. 24, 2002) - XBIT document and bitmap files 

Compressed image files
imagery0.zip (354k, Dec. 23. 1999) - image files for XBIT demonstration
imagery1.zip (1864k, Sept. 1999)- additional image files for XBIT demonstration 

Specification of free versions of XBIT
Free versions of XBit have the following image specifications:
Tk Photo of any size
Tk canvas bitmap capture to file/clipboard
Screen/window bitmap capture to file/clipboard
Other multispectral images: 512 rows, 640 columns, 512 bands (number of spectral channels)
Pixels: 1bit, 4bits, 8bit Byte, 16bit signed/unsigned integer, 32 bit integer, 32 bit float
File formats: user defined BIL, BSQ, BIP; DIB, JPEG, GIF, MPEG, TIFF, GEOTIFF, DICOM ...

Download and installation
If you have not installed a TclTk, you may down load the TclTk package from  http://www.scriptics.com or ftp://ftp.scriptics.com/pub/tcl and install a TclTk package first.

Down load specific binary DLLs: Choose a platform, down load one or all of the DLL files (xbit76e.zip, xbit80e.zip, xbit81e.zip, xbit82e.zip,xbit83e.zip) required for Windows; or down load one or all of the DLL files ( linux225-15-xbit76e.zip, linux225-15-xbit80e.zip, linux225-15-xbit81e.zip,linux225-15-xbit82e.zip, linux225-15-xbit83e.zip ) required for PC Linux. 

Down load general script libraries, bitmaps and documents: For any platform, down load  xbitlib.zip (required), xbitdoc.zip (required), imagery0.zip (recommended) and imagery1.zip (optional). 

XBIT Installation: Uncompress zipped files with an unzip utility in a directory (e.g., xbit). In order to use XBIT, a global variable gimgHome is required to be set to the path to the home directory of the XBIT package. There are two ways to invoke XBIT. The first is to use a command line with xbitinit.tcl, e.g., wish80 xbitinit.tcl. File xbitinit.tcl provides scripts to automatically set a global variable gimgHome to the home directory of XBIT package, and to choose the right DLL file. It loads in XBIT from an entry of Console_Init to start an XBIT's console application. Once XBIT has been invoked successfully, it can be further installed via a TclTk's package protocol by clicking an menu entry "Install XBit Package" under a "Program" menu of a XBit Console. The second is to use load command of Tcl from a Wish console, e.g., load xbit76e.dll. It loads XBIT from an entry of Xbit_Init. The second method needs a global variable gimgHome to be set to the path of the XBIT package before loading a DLL file.

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