Working with Scripts
The Pro Script module extends Mira's image processing capabilities using a scripting language based on the Lua language (see http://www.lua.org). This architecture provides a complete script processing engine that can be used to extend Mira's image and data processing capabilities as well as performing general types of computing that do not involve Mira tools or image data. The script language itself is described in a separate document, the Pro Script User's Guide. The current topic describes how to work with scripts in Mira. Complete documentation on script functions, classes, methods, and other features, is found in the Pro Script User's Guide.
For viewing, creating, and modifying scripts, Mira provides the Script Editor. The Script Editor is a special kind of text editor that highlights the different language elements according to patterns and rules. The script editor uses several styles to display different types of syntax. This syntax highlighting makes the script more human-readable but it does not actually affect the script text itself. Scripts can be executed, or "run", using the [ ! ] button on the Script Editor Toolbar and the Main Toobar, or from the Script Manager.
When running a script, Mira loads the text directly from a file or from the Script Editor. This text is fed to the Lua engine, which compiles the text to byte code and executes it. The sections below describe how to create, open, save, and run scripts in Mira.
To create a new script, do one of the following. These actions open an empty Script Editor:
Execute the File > New command (Ctrl+N) and select Script Document as the new document type. Double click the document type or click [OK] to create the new script document.
Click the down-arrow on the 
button on the main toolbar, and select
[Script Manager]. In the Script
Manager dialog, click [New].
To open a script from a file, do one of the following. These actions load the existing script into a Script Editor:
Use the File > Open command (Ctrl+O) and choose Lua Script File (*.lua) from the File Types drop box. Select the script file and click [Open].
Click the down-arrow on the button on the main toolbar, and select
[Script Manager]. In the Script
Manager dialog, select a script and click the [Open] button.
Select a .lua file from the MRU (Most Recently Used) files list at the bottom of the File menu.
Drag a .lua file from Windows Explorer and drop it onto the Mira window.
Scripts are saved to text files with a lua file extension. You can choose to save scripts
in the ...\Mira Pro 7 UE\Scripts folder tree or
anywhere in your file system. If you choose to save them outside
the ...\Mira Pro 7 UE\Scripts folder tree, then they
will not be accessible from the Script Manager. To save a script,
use one of the following methods:
To Same file: Use the File >
Save command (Ctrl+S) or the 
button.
To Different file: Use the File > Save As command.
For detailed information about running a script, see Running Scripts. Essentially, there are 3 ways to run a script:
With the target Image window (or Plot window) as
the top-most window, click on the
Main Toolbar. This is critical if the script uses the CImageView:Attach method to access the top-most
image window.
From the Script Editor window, click 
.
From the Script Manager, click [Run].