Untitled

// Bounding Box with Dimension Lines and Labels
// Works in Adobe Illustrator

(function() {
    if (app.documents.length === 0) {
        alert("No document open.");
        return;
    }

    var doc = app.activeDocument;

    if (doc.selection.length === 0) {
        alert("Please select a group or object first.");
        return;
    }

    var sel = doc.selection[0];
    var bounds = sel.visibleBounds; // [left, top, right, bottom]
    var left = bounds[0], top = bounds[1], right = bounds[2], bottom = bounds[3];
    var width = right - left;
    var height = top - bottom;

    // --- Create bounding box ---
    var rect = doc.pathItems.rectangle(top, left, width, height);
    rect.stroked = true;
    rect.filled = false;
    rect.strokeWidth = 1;

    // Use safe black color
    var black;
    try {
        black = doc.swatches["Black"].color;
    } catch (e) {
        black = new RGBColor();
        black.red = black.green = black.blue = 0;
    }
    rect.strokeColor = black;

    rect.zOrder(ZOrderMethod.SENDTOBACK);

    // --- Corner points ---
    var topLeft = [left, top];
    var topRight = [right, top];
    var bottomLeft = [left, bottom];
    var bottomRight = [right, bottom];

    // --- Dimension Lines ---
    var offset = 15; // distance from box for dimension lines

    // Horizontal line (width)
    var hLine = doc.pathItems.add();
    hLine.setEntirePath([[left, bottom - offset], [right, bottom - offset]]);
    hLine.stroked = true;
    hLine.strokeWidth = 0.5;
    hLine.strokeColor = black;
    hLine.filled = false;

    // Vertical line (height)
    var vLine = doc.pathItems.add();
    vLine.setEntirePath([[left - offset, bottom], [left - offset, top]]);
    vLine.stroked = true;
    vLine.strokeWidth = 0.5;
    vLine.strokeColor = black;
    vLine.filled = false;

    // --- Arrowheads function ---
    function createArrow(point1, point2, size) {
        var dx = point2[0] - point1[0];
        var dy = point2[1] - point1[1];
        var angle = Math.atan2(dy, dx);
        var arrow1 = doc.pathItems.add();
        var arrow2 = doc.pathItems.add();
        var arrowLength = size;

        // Left/top side
        arrow1.setEntirePath([
            point1,
            [point1[0] + arrowLength * Math.cos(angle + Math.PI * 3/4),
             point1[1] + arrowLength * Math.sin(angle + Math.PI * 3/4)]
        ]);
        arrow1.stroked = true;
        arrow1.strokeWidth = 0.5;
        arrow1.strokeColor = black;
        arrow1.filled = false;

        // Right/bottom side
        arrow2.setEntirePath([
            point2,
            [point2[0] + arrowLength * Math.cos(angle - Math.PI * 3/4),
             point2[1] + arrowLength * Math.sin(angle - Math.PI * 3/4)]
        ]);
        arrow2.stroked = true;
        arrow2.strokeWidth = 0.5;
        arrow2.strokeColor = black;
        arrow2.filled = false;
    }

    // Create arrowheads for horizontal and vertical lines
    createArrow([left, bottom - offset], [right, bottom - offset], 5);
    createArrow([left - offset, bottom], [left - offset, top], 5);

    // --- Labels ---
    var widthLabel = doc.textFrames.add();
    widthLabel.contents = width.toFixed(2) + " px";
    widthLabel.position = [left + width / 2, bottom - offset - 10];
    widthLabel.textRange.characterAttributes.size = 10;

    var heightLabel = doc.textFrames.add();
    heightLabel.contents = height.toFixed(2) + " px";
    heightLabel.position = [left - offset - 10, bottom + height / 2];
    heightLabel.textRange.characterAttributes.size = 10;
    heightLabel.rotate(-90);

})();