Joining paths chronologically (endpoint of objects with startpoint of the above insteadof automatic detection)

Question

Just like the topic says, is there a way (scripting?) to join paths (i think of about 100-500 of more or less detailed vector scribbles) by connecting every endpoint to the startpoint of the following object above?

1) You see the original scribble, 4 brush strokes, every stroke beginning in the bottom and directed to top-right.

2) The result of selecting strokes > right-click > join produces automatically detected path, connecting the nearest (?) anchors.

3) What it should be: end-point of the first stroke should join with start-point of second and so on.

Would this be possible? This would save enormous amounts of time while animating paths in after effects.

CarlosCanto · Answer

here you go, select your paths before running the script.

the paths must be drawn as you described, each path from bottom to top, all paths from left to right

// script.name = joinPathEndToNextPathStart,jsx
// script.description = custom script for this particular scenario
// script.requirement = two or more path items selected
// script.parent = CarlosCanto // 03/15/2015
// script.elegant = false;


// https://forums.adobe.com/thread/1728520
// https://forums.adobe.com/thread/1745514


#target "illustrator"
function main() {
   
    var idoc = app.activeDocument;
   
    var sel = idoc.selection;
    var pathitems = [];
   
    if (sel.length>1) {
        for (var a = 0; a<sel.length; a++) {
            var pgItem = sel;

            if (pgItem.typename == 'PathItem') {
                pathitems.push(pgItem);
            }
        }
        selection = null;
        joinEnds(pathitems);
       
    }
    else {
        alert('select two or more path items and try again');
    }
}
main ();


//---------------------------------------------------------------------------


function joinEnds(pa /*pathItems array*/) {


    var p1 = pa.shift();
    do {
        var p2=pa.shift();
        p1.pathPoints[0].selected = PathPointSelection.ANCHORPOINT;
        p2.pathPoints[p2.pathPoints.length-1].selected = PathPointSelection.ANCHORPOINT;
        app.executeMenuCommand ('join');
        p1 = selection[0];


        selection = null;


    } while (pa.length>0);
}

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