[cpclgw]

我在AI中执行你原来的代码，查看线条是单位就是mm.

请用这个AI修改的代码测试看看：

if (app.selection.length === 0) {
alert("未选择对象！");
} else {
app.executeMenuCommand("copy");
var newDoc = app.documents.add();
newDoc.activate();
app.executeMenuCommand("paste");
var artboard = newDoc.artboards[0];
artboard.artboardRect = newDoc.visibleBounds;
}

var SELECTION = activeDocument.selection;
if (SELECTION.length > 0) {
var VIEW = app.activeDocument.activeView;
var zoom = VIEW.zoom;

// 将 zoom 暂时重置为 1，以准确计算可见范围的尺寸
VIEW.zoom = 1;
var bounds = VIEW.bounds;
var ViewW = (bounds[2] - bounds[0]) * 0.3527777778; // 转换为毫米
var ViewH = (bounds[1] - bounds[3]) * 0.3527777778; // 转换为毫米
VIEW.zoom = zoom;

// 初始化边界值
var LeftX, TopY, RightX, BottomY;

for (var num = 0; num < SELECTION.length; num++) {
var SELECTED = SELECTION[num].geometricBounds;
LeftX = (LeftX == undefined) ? SELECTED[0] : Math.min(LeftX, SELECTED[0]);
TopY = (TopY == undefined) ? SELECTED[1] : Math.max(TopY, SELECTED[1]);
RightX = (RightX == undefined) ? SELECTED[2] : Math.max(RightX, SELECTED[2]);
BottomY = (BottomY == undefined) ? SELECTED[3] : Math.min(BottomY, SELECTED[3]);
}

// 计算选区的尺寸和中心点(转换为毫米)
var WidthX = (RightX - LeftX) * 0.3527777778;
var HeightY = (TopY - BottomY) * 0.3527777778;
var CenterX = ((RightX + LeftX) / 2) * 0.3527777778;
var CenterY = ((TopY + BottomY) / 2) * 0.3527777778;

// 根据视窗比例计算适当的缩放值
var Zoom = (ViewW / ViewH < WidthX / HeightY) ? ViewW / WidthX : ViewH / HeightY;
VIEW.zoom = Zoom * 0.9; // 设置缩放比例，留一些边距
VIEW.centerPoint = [CenterX / 0.3527777778, CenterY / 0.3527777778]; // 将毫米单位转换回点单位
}