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A.1.1 Calculation

This column has the options which control how nip starts and how and when it calculates.

Data path

This is a list of directories where nip searches for data files. These are any files that nip can use but which aren't loaded at startup. I usually append the main areas on my machine where I store image files, for example.

The default value is ["$HOME/.$PACKAGE-$VERSION/data", "$VIPSHOME/share/nip/data", "."].

Temporary files

This is where any intermediate files will be stored. It defaults to a directory called tmp under your home area's .nip-xx directory. If nip crashes, it may leave old files here.

Start path

This lists directories which are searched when nip starts for any loadable files. Anything that nip comes across will be loaded up.

The default value is ["$HOME/.$PACKAGE-$VERSION/start", "$VIPSHOME/share/nip/start"].

Auto-recalc

With this on (the default) nip will recalculate whenever anything changes. Turn this off if recalculations are taking a long time and you want to make a series of small changes.

Update sliders

This sets whether recalculation happens as sliders are dragged, or whether the recalculation waits until the drag finishes. There's a similar setting for regions.

Auto workspace save

With this tured on (the default) nip will save the current workspace to the temporary files area a second after the last recalculation. If nip crashes, you can restart it and click File=>Recover after crash and nip will reload the last workspace where you made a change.

Display LEDs

If you're using a theme which uses bitmaps for widgets, you won't be able to see the button colour changes nip usually uses to indicate state. This option adds three small LEDs to each row which indicate select, busy and error.

Maximum text display

This sets the number of characters nip shows for string values. Turn it up if you want to see inside long strings.

Maximum heap

This sets the limit on the heap size. Turn it up if you start getting Heap full error messages. If you left-click on the space free label in the bottom right of the main window, it will change to display the current heap statistics. There's a useful tooltip as well.

Optimiser

This turns on the expression optimiser. nip will take longer to start up, but should recalculate slightly more quickly.


next up previous contents
Next: A.1.2 Image display Up: A.1 Preferences Previous: A.1 Preferences   Contents
John Cupitt 2003-07-21