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Adobe 65010248 Scripting Guide - Page 46

Combining path point types, Measurement units, on item positioning and dimensions

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CHAPTER 5: Scripting with JavaScript Creating paths and shapes 46 var myDoc = app.activeDocument; var myLine = myDoc.pathItems.add(); //set stroked to true so we can see the path myLine.stroked = true; var newPoint = myLine.pathPoints.add(); newPoint.anchor = [220, 475]; //giving the direction points the same value as the //anchor point creates a straight line segment newPoint.leftDirection = newPoint.anchor; newPoint.rightDirection = newPoint.anchor; newPoint.pointType = PointType.CORNER; var newPoint1 = myLine.pathPoints.add(); newPoint1.anchor = [375, 300]; newPoint1.leftDirection = newPoint1.anchor; newPoint1.rightDirection = newPoint1.anchor; newPoint1.pointType = PointType.CORNER; var newPoint2 = myLine.pathPoints.add(); newPoint2.anchor = [220, 300]; //giving the direction points different values //than the anchor point creates a curve newPoint2.leftDirection =[180, 260]; newPoint2.rightDirection = [240, 320]; newPoint2.pointType = PointType.CORNER; Combining path point types The following script sample creates a path with three points: var myDoc = app.activeDocument; var myLine = myDoc.pathItems.add(); myLine.stroked = true; myLine.setEntirePath( [[220, 475], [375, 300]]); // Append another point to the line var newPoint = myDoc.myLine.pathPoints.add(); newPoint.anchor = [220, 300]; newPoint.leftDirection = newPoint.anchor; newPoint.rightDirection = newPoint.anchor; newPoint.pointType = PointType.CORNER; Shapes To create a shape, use the pathItems method that corresponds to the shape's name (like ellipse, rectangle, or polygon), and use the parameters to specify shape's position, size, and other information like the number of sides in a polygon. Remember: ➤ All measurements and page coordinates are processed as points by the scripting engine. For details, see "Measurement units" on page 29. ➤ x and y coordinates are measured from the bottom-left corner of the document, as indicated in the Info panel in the Illustrator application. For details, see "Page-item positioning and dimensions" on page 29.

Section	Page
Introduction	6
What is scripting?	6
Why use scripting?	6
What about actions?	6
Script support in Adobe Illustrator CS4	7
ExtendScript features	7
ExtendScript tools	7
Script file extensions	7
Viewing sample scripts	8
Viewing the object model	8
Viewing the JavaScript object model	8
Viewing the AppleScript object model	8
Viewing the VBScript object model	9
Executing scripts	9
Installing scripts in the Scripts menu	10
Executing scripts from the Other Scripts menu item	10
Startup scripts (.jsx scripts only)	10
Application-specific startup scripts folder	10
General startup scripts folder	11
Changes since CS3	11
Known issues	16
The Illustrator Scripting Object Model	17
Object-naming conventions	18
Top-level (containing) objects	18
Application	18
Document	19
Layer	19
The artwork tree	19
Art styles	20
Color objects	21
Text objects	21
Text frames	21
Text geometry	22
Objects that represent text content	22
Text ranges	23
Text styles	23
Dynamic objects	24
Symbols	24
Transformations	24
Scripting Illustrator	25
Launching and quitting Illustrator from a script	25
Launching and activating Illustrator	25
AppleScript	25
JavaScript	25
VBScript	25
Quitting Illustrator	26
AppleScript	26
JavaScript	26
VBScript	26
Working with objects	26
Getting the frontmost document or layer	26
Creating new objects	26
Collection objects	27
AppleScript	27
JavaScript	27
VBScript	28
Selected objects	28
Selecting text	28
Selecting art items	28
Referring to selected art items	28
Notes on renaming objects stored in the application’s panels	28
Measurement units	29
Em space units	29
Page-item positioning and dimensions	29
Art item bounds	30
Paths and shapes	31
User-interaction levels	31
AppleScript	31
JavaScript	32
VBScript	32
Printing Illustrator documents	32
Scripting with AppleScript	33
For more information	33
Your first Illustrator script	33
Adding features to “Hello World”	34
Object references	34
Obtaining objects from documents and layers	35
Creating new objects	35
Working with selections	35
Selecting artwork objects	36
Working with text frames	36
Threaded frames	36
Threaded frames make one story object	37
Creating paths and shapes	37
Paths	37
Specifying a series of x-y coordinates	37
Using path point objects	37
Combining path point types	38
Shapes	38
Write-once access	39
Creating a rectangle	39
Creating a polygon	39
Scripting with JavaScript	40
For more information	40
Your first Illustrator script	40
Adding features to “Hello World”	41
Working with methods in JavaScript	41
Accessing and referencing objects	42
Referencing the application object	42
Accessing objects in collections	42
Creating new objects	43
Working with selections	44
Selecting artwork objects	44
Working with text frames	44
Threaded frames	44
Threaded frames make a single story object	45
Creating paths and shapes	45
Paths	45
Specifying a series of x-y coordinates	45
Using pathPoint objects	45
Combining path point types	46
Shapes	46
Creating a rectangle	47
Creating a polygon	47
Scripting with VBScript	48
For more information	48
Your first Illustrator script	48
Adding features to “Hello World”	49
Accessing and referencing objects	49
Obtaining objects from collections	49
Creating new objects	50
Working with selections	50
Selecting artwork objects	50
Working with text frames	51
Threaded frames	51
Threaded frames make a single story object	51
Creating paths and shapes	51
Paths	51
Specifying a series of x-y coordinates	52
Using path point objects	52
Combining path-point types	53
Shapes	53
Creating a rectangle	53
Creating a polygon	54
Working with enumeration values	54

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HAPTER

5: Scripting with JavaScript

Creating paths and shapes

var myDoc = app.activeDocument;

var myLine = myDoc.pathItems.add();

//set stroked to true so we can see the path

myLine.stroked = true;

var newPoint = myLine.pathPoints.add();

newPoint.anchor = [220, 475];

//giving the direction points the same value as the

//anchor point creates a straight line segment

newPoint.leftDirection = newPoint.anchor;

newPoint.rightDirection = newPoint.anchor;

newPoint.pointType = PointType.CORNER;

var newPoint1 = myLine.pathPoints.add();

newPoint1.anchor = [375, 300];

newPoint1.leftDirection = newPoint1.anchor;

newPoint1.rightDirection = newPoint1.anchor;

newPoint1.pointType = PointType.CORNER;

var newPoint2 = myLine.pathPoints.add();

newPoint2.anchor = [220, 300];

//giving the direction points different values

//than the anchor point creates a curve

newPoint2.leftDirection =[180, 260];

newPoint2.rightDirection = [240, 320];

newPoint2.pointType = PointType.CORNER;

Combining path point types

The following script sample creates a path with three points:

var myDoc = app.activeDocument;

var myLine = myDoc.pathItems.add();

myLine.stroked = true;

myLine.setEntirePath( [[220, 475], [375, 300]]);

// Append another point to the line

var newPoint = myDoc.myLine.pathPoints.add();

newPoint.anchor = [220, 300];

newPoint.leftDirection = newPoint.anchor;

newPoint.rightDirection = newPoint.anchor;

newPoint.pointType = PointType.CORNER;

Shapes

To create a shape, use the

pathItems

method that corresponds to the shape’s name (like

ellipse

rectangle

, or

polygon

), and use the parameters to specify shape’s position, size, and other information

like the number of sides in a polygon.

Remember:

➤

All measurements and page coordinates are processed as points by the scripting engine. For details,

see

“

Measurement units

” on page 29

➤

x and y coordinates are measured from the bottom-left corner of the document, as indicated in the

Info panel in the Illustrator application. For details, see

“

Page-item positioning and dimensions

” on

page 29