我正在编写一些用于编写 Adobe Illustrator 脚本的辅助类。
我的问题始于 Eyelet 对象。当我实例化它时,它在第一个 new Group()
处失败,因为显然 Group
没有构造函数。
这是我的代码的精简版:
/****************** Collection Class **********************/
function Collection() {
this.parent = app.activeDocument;
this.typename = "Collection";
}
Collection.prototype.setName = function(name) {
this.instance.name = name;
};
/****************** Group (extends collection) *****************/
function Group(name, parent) {
this.parent = parent || this.parent;
this.instance = this.parent.groupItems.add();
if(name) {
this.setName(name);
} else {
this.setName("Group");
}
}
Group.prototype = new Collection();
/****************** Shape Class **********************/
function Shape() {
this.parent = app.activeDocument;
this.typename = "Shape";
}
Shape.prototype.setName = function(name) {
this.instance.name = name;
};
Shape.prototype.stroke = function(width, color) {
this.instance.stroked = true;
this.instance.strokeWeight = width;
this.instance.strokeColor = color;
};
/****************** Line (extends Shape) **********************/
function Line(parent, start, end) {
this.instance = parent.pathItems.add();
// [ [startX, startY], [endX, endY] ]
this.instance.setEntirePath([start,end]);
}
Line.prototype = new Shape();
/****************** Eyelet (extends Shape) **********************/
function Eyelet(parent, position) {
this.instance = new Group("Eyelet", parent);
var whiteCross = new Group("White", this.instance);
var blackCross = new Group("Black", this.instance);
var build = function(group, color, width) {
var vertical = new Line( group , [0 , 0] , [0 , 50] );
vertical.setName("vertical");
vertical.stroke(width, color);
var horizontal = new Line( group , [0 , 50] , [50 , 0] );
horizontal.setName("horizontal");
horizontal.stroke(width, color);
};
build(whiteCross.instance, white, (3 * scale) );
build(blackCross.instance, black, (1 * scale) );
this.instance.position = position;
}
Eyelet.prototype = new Shape();
当我写作时
var eyelet = new Eyelet(layer2, [10,10]);
我明白了
Group does not have a constructor
我已经通过 jslint 运行了这段代码,但我不明白为什么它不起作用。任何帮助将不胜感激。
最佳答案
事实证明,这与 Adobe Illustrator 相关。我按照 Dan Breslau 的建议将 Group
对象重命名为 MyGroup
并且它按我的预期工作。 Illustrator 似乎有一个导致问题的全局 Group
对象。感谢您的帮助。
关于javascript - 为什么我的对象没有构造函数?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4325368/