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4.4.3 Applying operations to objects
There are three ways you can apply image processing operations to objects
in your workspace:
- Select the object you want to apply the operation to by single-left-clicking
on the object name. When you single-click, the object name will change
colour to show that it is selected, and nip will display the name of
the selected object in the bottom right corner of the main window (this is
useful if the selected object is scrolled off the edge of the window).
You can select additional objects with Ctrl-left-click and
Shift-left-click. This is necessary if you want to use an image
processing operation that takes more than one argument.
Once you have selected the rows (maybe in the right order), click on the
processing operation you want from the menu down the right of the screen.
- If no objects are selected when you click on an image processing operation,
nip uses the bottom few items (as many as are needed by the operation)
in the current column. If the last few objects are the wrong type for the
operation selected an error message will be returned.
- You can also type your formula directly into the expresion
entry line at the bottom of the selected column. Chapter 6 describes
the syntax in detail, but it's approximately C.
To apply the same operation to a number of rows, use Edit=>Group and
Edit=>Ungroup.
Next: 4.4.4 Error handling
Up: 4.4 Image processing window
Previous: 4.4.2.1 Object name colours
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John Cupitt
2003-07-21