Adobe 65010248 Scripting Guide - Page 41
Adding features to “Hello World”, Working with methods in JavaScript
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CHAPTER 5: Scripting with JavaScript Working with methods in JavaScript 41 Adding features to "Hello World" Next, we create a new script that makes changes to the Illustrator document you created with your first script. Our second script demonstrates how to: ➤ Get the active document. ➤ Get the width of the active document. ➤ Resize the text frame to match the document's width. If you already closed the Illustrator document, run your first script again to create a new document, before proceeding with this exercise. Follow these steps: 1. Choose File > New in your text editor, to create a new script. 2. Enter the following code: var docRef = app.activeDocument; var docWidth = docRef.width var frameRef = docRef.textFrames[0] frameRef.width = docWidth 3. Run the script. Working with methods in JavaScript When you work with methods that have multiple parameters, you may omit optional parameters at the end of the parameter list, but you may not omit parameters in the middle of the list. If you do not want to specify a particular parameter in the middle of the list, you must insert the value undefined to use the parameter's default value. For example, the following definition describes the rotate() method for an art object. rotate (angle [,changePositions] [,changeFillPatterns] [,changeFillGradients] [,changeStrokePattern] [,rotateAbout]) In the definition, taken from Adobe Illustrator CS4 Scripting Reference: JavaScript, optional parameters are enclosed in square brackets ([]). To rotate the object 30 degrees and change the fillGradients, you would use the following script statement: myObject.rotate(30, undefined, undefined, true); You need to specify undefined for the changePositions and changeFillPatterns parameters. You do not have to specify anything for the two optional parameters following changeFillGradients, since they are at the end of the parameter list.
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