EDOBE XDOM TPC Informations techniques télécharger pdf (Page 45)

CHAPTER 5: Scripting with JavaScript Working with methods in JavaScript 45

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:

X Get the active document.

X Get the width of the active document.

X 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 CS5 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.

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 67 68

Pas de commentaire

EDOBE XDOM TPC Informations techniques Page 45