On Jan 18, 2009, at 7:56 PM, Matthew Dougherty wrote:

I have a command file that has a number of reset commands.

I would like to
1) interrupt a command file during execution, aborting all further  
commands, stopping the graphics configuration at the abort (e.g.  
threshold values, active models, etc)
2) be able to place a hold in a command file, say after the a reset  
command, and be able to continue the command processing after pressing  
a key on the keyboard.

Does this capability exist?

We don't have #1, though it used to exist in Midas by pressing the Escape key during script execution.  I will open a feature request in our Trac database to get this capability back.  It will probably take a couple of months for me to get to it.  You'll get automated mail from Trac when the implementation happens.

I went ahead and implemented #2 since I thought it would be trivial.  It turned out to be a little less trivial than I had thought, but not too bad.  It will be available as the "pause" command starting with tonight's daily builds.

I don't know what your need for these commands are precisely, but you should be aware that the Demo capability of Chimera offers #2 already, though maybe creating a demo is a little more elaborate than what you want.

--Eric

                        Eric Pettersen
                        UCSF Computer Graphics Lab
                        http://www.cgl.ucsf.edu