Adobe script. Split all anchors of path to json array

pathToJson.jsx

#target illustrator

var sel = app.activeDocument.selection; 
var height_ = app.activeDocument.height
var file = File.saveDialog('save centers', 'center:*.txt');
var height_ = app.activeDocument.height
file.open('w')

file.write("[\n")
for(var i = 0; i < sel.length; i++){
      if(sel[i].typename == "PathItem"){
          var points = sel[i].pathPoints;
          $.writeln(points)
          for (var j = 0; j< points.length; j++) {
            var pos = points[j].anchor;
            
            file.write("\t{\"x\": "+ pos[0]  + " , \"y\": "+ (height_ - pos[1]) +"}");
            if (j != points.length-1) {
                    file.write(",")
                }
            file.write("\n")
          }
      }
}
file.write("]")
file.close();

.aiファイルのパス状態でスクリプトを使うと、y座標がずれます。一度svgファイルにして開き直してからスクリプト走らせてください