[jialan75]

var pt = 72 / 25.4;
//容差 假如对象靠近 画板边缘，但是又没有碰到的情况下，0.8毫米以内的形状也认为是需要拉伸的对象
var rc = 0.8 * pt;
//拉伸到画板外3mm为止
var ls = 3 * pt;

expand();

function expand() {
var doc = app.activeDocument;
for (var n = 0; n < doc.artboards.length; n++) {
var art = new Artboard(n);
for (var i = 0; i < doc.selection.length; i++) {
var shape = doc.selection[i];
if(art.left> shape.left+shape.width||art.top<shape.top-shape.height||art.right<shape.left||art.bottom>shape.top){
//如果在画板外就跳过
continue;
}
var left = isRC(art.left, shape.left, rc, 'left');
var bottom = isRC(art.bottom, shape.top - shape.height, rc, 'bottom');
var right = isRC(art.right, shape.left + shape.width, rc, 'right');
var top = isRC(art.top, shape.top, rc, 'top');

if (left) {
shape.width = shape.width + ls - (art.left - shape.left);
shape.left = shape.left - ls + (art.left - shape.left);
}
if (right) {
shape.width = shape.width + ls - (shape.left + shape.width - art.right);
}
if (bottom) {
shape.height = shape.height + ls - (art.bottom - (shape.top - shape.height));
}
if (top) {
shape.height = shape.height + ls - (shape.top - art.top);
shape.top = shape.top + ls - (shape.top - art.top);
}

}
}
}

function isRC(a, b, rc, index) {
if (index == 'left') return (a > b && a - b < ls) || Math.abs(a - b) <= rc;
if (index == 'top') return (a < b && b - a < ls) || Math.abs(a - b) <= rc;
if (index == 'right') return (a < b && b - a < ls) || Math.abs(a - b) <= rc;
if (index == 'bottom') return (a > b && a - b < ls) || Math.abs(a - b) <= rc;
return Math.abs(a - b) <= rc;
}

function Artboard(index) {
var doc = app.activeDocument;
/**
* index 下标 (非必填 默认当前画板)
* 画板类用于获取画板的属性
* 宽度,高度,坐标(上下左右垂直中,水平中),简单的信息
*
* 例子
* artboard = Artboard()
* artboard = Artboard(0)
* 打印信息
* alert(artboard.info)
*/
index = index == undefined ? doc.artboards.getActiveArtboardIndex() : index
var abBounds = doc.artboards[index].artboardRect;
this.width = abBounds[2] - abBounds[0];
this.height = abBounds[1] - abBounds[3];
this.left = abBounds[0];
this.top = abBounds[1];
this.bottom = abBounds[3];
this.right = abBounds[2];
this.index = index;
this.toString = function () {
return '当前是第' + index + '个页面\n页面尺寸为' + this.width / pt + 'x' + this.height / pt + ' mm';
}

}

使用教程如下
1.jpg
2.jpg
3.jpg

[jialan75]

作者: 姜椒蒜

可以用白箭头全选操作吗？还是得单个单个操作？

不要使用黑箭头
不要使用带+号的箭头。

使用直接选择工具。
我电脑的快捷键是A

[jialan75]

作者: ggchan

刚刚试用了一下，如果有描边的情况不是很精确，还有不知道为啥是上边拉伸了2.5，下边拉伸了3.5

看了一下。确实不太对。
不过我不改了。 谁用得到谁改