|CCP4i: Graphical User Interface|
|Configuring CCP4i to Use Local Resources|
CCP4 Setup Command
Run CCP4i Command
The BLT Library
MTZ Column Label Display
Viewing HTML Help Text
Map File Format Conversion
Sequence Database Retrieval Command
Running Jobs Remotely
Saving the Configuration Setup
The Interface needs to be configured to make use of other non-CCP4 software on your system and to provide easy access to hardware such as printers and remote machines or batch queues.
The local resources are defined in the file $CCP4I_top/etc/configure.def which can be edited using a graphical utility accessed by the command:
> ccp4i -c[onfigure]
It can also be accessed using the Configure Interface button on the bottom right of the Main Window.
This will bring up a window similar to the Interface task windows and you can enter the appropriate information for the parameters described below. When you have finished you should save the information to the installation file. There is also an option to save the information to the user's home directory (as a file $HOME/.CCP4/unix/configure.def). This option enables individual users to customise the system but I would discourage this.
When the Interface runs a job remotely or in batch, it must setup the CCP4 program suite. You should enter the command that you use locally to do this.
This is the command used to run the scripts for a job. It should be set to ccp4ish, there are currently no alternatives.
This is the command used to run the Loggraph Utility for displaying graphs and tables in CCP4 log files. It should be set to loggraph.
The Mail CCP4 option on the main window makes it easy to mail the program developer with questions or problems. The mail address should be firstname.lastname@example.org
The Loggraph Utility
will generate Postscript plot files. It needs
to have access to resource files in the BLT library which in a standard
installation would be in the directory:
CCP4i will try to fill in the correct pathname for this the first time you open the Configure window. If Loggraph can not find the appropriate resource files when attempting to print out a plot, there will be an error message:
couldn't open prologue file
If an MTZ file contains a large number of columns of data, then it is possible that the selection menu will be longer than the screen and some columns will be inaccessible. To prevent this, menus of MTZ columns are broken into several columns, with this option setting the maximum length of each column in the menu in terms of the number of MTZ labels.
This currently assumes the use of Netscape but can use alternative hypertext viewers. The exact useage depends on the version of Netscape. The distributed version is for Netscape30. When started up outside the Interface it works well in InternetExplorer, and older and newer versions of Netscape.
If there are problems this brief explanation may help in troubleshooting. The script $CCP4I_top/src/local.tcl contains the procedure open_url. For Netscape it checks to see whether there is a locally running version of the browser, and starts one (using the command given in this option) if not. After a delay, or if there is already a version running, then it tries to display the HTML file using the 'netscape -remote' option (you can read about this by entering 'netscape -help' on the command line or look at the Netscape help on this topic).
The procedure poll_netscape invoked from open_url is will make multiple attempts to open the page, in case there is a delay in Netscape responding to these requests when it is first launched.
Note that if you are running CCP4i on a remote machine over an X connection, but have Netscape running on the local machine, then CCP4i may start Netscape on the remote machine but then try to open the page via the local Netscape. This can be irritating but should be solved by opening the page a second time.
Converting maps to non-CCP4 formats requires running non-CCP4 programs. Currently O and Quanta formats are handled. The default conversion programs are: /o/rave_irix6/6d_mapman and /quanta97/maps/mbkall. You should change the program path names appropriately for your system.
Very large maps may exceed the default maximum size for the Mapman program and require an extra command MAPSIZE. CCP4i scripts will include an appropriate command if a map exceeds the value given here. This value can be found for your version of Mapman by running the program and noting the value for 'Max nr of points in map'. Individual users can choose the preferred output map format in the Preferences window - if most users on your site are liable to have the same preference then the system manager could set the installation default in the Preferences window (accessed from menu on the right-hand side of the main CCP4i window). By default CCP4i scripts will use the NORMALISE command in Mapman and produce normalised maps - this can also be changed in the Preferences window.
I am happy to add conversions for other graphics programs but will need information from you on the command string required to run the conversion program.
MODELLER is an homology modelling program which can be used to reduce manual editing of structures particularly in molecular replacement. CCP4i has a task interface to some limited functionality of MODELLER, called Edit Protein Structure, in the Molecular Replacement module. This program is not distributed by CCP4 but can be obtained from: Sali Lab at The Rockefeller University.
In the configure window you should enter the MODELLER install directory (called MODINSTALL in MODELLER documentation) and the install keyword which you must obtain following the instructions on the above web pages. Since alternative versions of the MODELLER program may be installed you must give the name of the one you want to use.
CCP4i has a task interface to the direct methods functionality of SHELX-90 in the Experimental Phasing module. This program is not distributed by CCP4 but can be obtained from: THE SHELX HOMEPAGE.
You should enter the full path name of the Shelx program in the configure window.
This option is explained in detail in the documentation for the Get Protein Sequence task; see the section on Changing the External Database.
The Interface will run jobs on other machines on the same network which can see the same filesystem, using the rsh command. The Interface Run Remote command definitely will not work across any connection that rsh will not work across.
You should enter a list of the machines which users are encouraged to run large jobs on.
The procedure to run remote jobs is in $CCP4_top/src/local.tcl - you probably do NOT want to look at it!
If you run a batch queue system, you will need to enter a name for the queue and then the command which will be used by the script to submit a job to that queue. The user is given the option to enter options at the time that they submit the job so the command takes the form:
batch_queue_command options csh_command_scriptwhere csh_command_script is the name of a command script created automatically by CCP4i.
I know of this batch queue option being used at LMB Cambridge on a DEC-Alpha system but of no other installation. If you have problems getting this working I will be happy to try to help out.
Various programs can be used to display postscript files on screen. Set any local preferences here. The first option will be used by default.
The loggraph program has options to print postscript files in colour or monochrome and several places in the interface could potentially print out text files. You need to enter two separate lists for black&white printers and colour printers available at your site.
For each printer you should enter a single word name for the printer which will appear on the menu for the user to choose a printer and the command string required to send a job to that printer. The command string would usually be of the form: lp -c -Dprinter_name. The -c option is advisable as the interface may otherwise delete a temporary file before the printer has a chance to print it. The name of the file to be printed will be appended to the command string.
The fonts used by the Interface are defined in the file $CCP4I_top/etc/configure.def. If the default fonts are not available on your machine, you will not be able to run the Interface configure utility but will have to edit the configure.def file manually. The format of this file is: one parameter per line with three items on the line (the parameter name, a data type for the parameter and the default value for the parameter). If your machine does not support the fonts specified in the file, you will need to edit the file to change the default values of the following parameters: font_FIXED, font_REGULAR, font_ITALIC, font_BIG or font_SMALL.
The font which will probably cause problems, is the fixed width font. If attempts to run the Interface causes crashes with warning messages about font_FIXED, try the most generic form for this font, which is:
(that's a total of 14 fields separated by dashes!).
On SGIs and possibly other Unix/Linux systems the system utility xfontsel can be used to find a font.
The configure.def file contains the definition of two font sets - large and small. The value of the parameter font_SET should be 'large' or 'small'. The fonts in the large font set are L_font_REGULAR, L_font_ITALIC, L_font_BIG and L_font_SMALL. Similarly, the fonts in the small font set are S_font_REGULAR, S_font_ITALIC, S_font_BIG and S_font_SMALL. When the user selects to run either the large or small font set, the appropriate set of parameters are copied into the 'current' font set. If you want to support the large/small font option on your system, you will need to find appropriate values for both the large and small font set.
I would appreciate hearing from anyone who has problems with fonts on different machine types so we can try to avoid them in future.
The file $CCP4I_top/etc/configure.def contains the definition of local resources which can be viewed and edited in a graphical interface by entering the command:
> ccp4i -c[onfigure]
The Test button at the bottom of this window has options to test how well the Interface interacts with the various resources. These are described individually below.
NOTE: If you change any of the parameters in the window, you should save them to file using the Save button before trying any of the Test options.
As a test, this attempts to open this page using the hypertext viewer specified in the configuration settings. If successful the viewer should start, otherwise there will an warning displaying the last system error message.
This test option automatically runs the loggraph program to display the graphs defined in the file $CCP4I_top/test_data/scaleit.log. Once the loggraph window in displayed you should do the following:
You now have a window containing several print options - you can test the printers you have specified for monochrome and colour plots and the programs used for previewing the print.
There are several possible problems which could cause this test ot fail - the symptons and diagnoses are:
Check that the loggraph program $CCP4I_top/bin/loggraph will start up stand-alone. Failure is probably because it can not find the bltwish executable invoked at the top of the script.
This suggests that the BLT library directory set in the configure interface is wrong.
It is worthwhile testing the running of both local and remote jobs at installation time by following this simple example.
If you are running ccp4i with the configure option (i.e. ccp4i -c) then close this window and start the main interface with the command
> ccp4iSelect Configure Interface from near the bottom of the menu on the right-hand side of the Main Window. Select Running Task from the 'Test' menu at the bottom of the Configure window.
To test running a job, you will be given the interface to the Convert to MTZ & Standardise task with suitable parameters already set.
To test running on your local machine:
To test runnning on a remote machine:
|symptom||cause||When running remotely the job does not start (produces no log file)||The command to set up CCP4 has not been set in the Configure interface|
The configuration setup window has two options for saving the setup: either to Save to Installation File or to Save to User's Home Directory. You should only save to the installation file ($CCP4I_top/etc/configure.def) if you are the system manager responsible for installing CCP4i. If you are not the system manager, you should not have write permission to this file if your system manager has set things up wisely. The alternative is to save a personal configuration preference to your $HOME/.CCP4/unix/configure.def file.
This is used by the Mail CCP4 button on the main interface to send mail to the Interface developer.
For Unix-type systems, the procedure SendMail in $CCP4I_top/src/local.tcl uses the system command mail to send mail. If this is inappropriate for your system, you will need to edit the local.tcl file. On Windows systems the URL http://www.ccp4.ac.uk/reportaprob.html is opened, which allows on-line reporting of bugs to the CCP4 staff.