CCP4i: Graphical User Interface
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Welcome to the CCP4 Task Interface

The Graphical User Interface for CCP4 simplifies running CCP4 programs and provides tools for reviewing and analysing results. The advantages of the CCP4 Task Interface over other CCP4 interfaces are:

• based on free, distributable software that runs on various systems;
• easy to port and maintain;
• possible for someone other than the original developer to modify and extend;
• user not 'locked in' to using the Interface;
• simple interfaces, everything in one place and not too many windows;
• considerate to the needs of a novice user.

The Interface is written in the scripting language Tcl combined with the graphics toolbox Tk.

Tcl/Tk provides an easy to program, flexible graphical interface. Particularly useful is the fact that interfaces can be made dynamic - their appearance being customised appropriately as the user makes some selection. The Tcl scripting language is good for integrating multiple programs and provides machine-independent tools for accessing files and performing simple system level operations. There are extentions to Tcl/Tk such as BLT, which provide simple and powerful graph drawing tools.