Find image Vertices

// 2016, use it at your own risk;

#target photoshop

if (app.documents.length > 0) {

var myDocument = app.activeDocument;

if (myDocument.pathItems.length > 0) {

var theArray = collectPathPointsInfoFromDesc (myDocument, myDocument.pathItems[myDocument.pathItems.length - 1]);

for (var m = 0; m < theArray.length; m++) {

alert (("subpathitem "+m+" has the following pathpoints\n"+theArray.join("\n")));

}

}

};

////// collect path points coordinates //////

function collectPathPointsInfoFromDesc (myDocument, thePath) {

var originalRulerUnits = app.preferences.rulerUnits;

app.preferences.rulerUnits = Units.POINTS;

// based of functions from xbytor’s stdlib;

var ref = new ActionReference();

for (var l = 0; l < myDocument.pathItems.length; l++) {

  var thisPath = myDocument.pathItems;

  if (thisPath == thePath && thisPath.kind == PathKind.WORKPATH) {

  ref.putProperty(cTID("Path"), cTID("WrPt"));

  };

  if (thisPath == thePath && thisPath.kind != PathKind.WORKPATH && thisPath.kind != PathKind.VECTORMASK) {

  ref.putIndex(cTID("Path"), l + 1);

  };

  if (thisPath == thePath && thisPath.kind == PathKind.VECTORMASK) {

        var idPath = charIDToTypeID( "Path" );

        var idPath = charIDToTypeID( "Path" );

        var idvectorMask = stringIDToTypeID( "vectorMask" );

        ref.putEnumerated( idPath, idPath, idvectorMask );

  };

  };

var desc = app.executeActionGet(ref);

var pname = desc.getString(cTID('PthN'));

// create new array;

var theArray = new Array;

var pathComponents = desc.getObjectValue(cTID("PthC")).getList(sTID('pathComponents'));

// for subpathitems;

for (var m = 0; m < pathComponents.count; m++) {

  var listKey = pathComponents.getObjectValue(m).getList(sTID("subpathListKey"));

// for subpathitem’s count;

  for (var n = 0; n < listKey.count; n++) {

  theArray.push(new Array);

  var points = listKey.getObjectValue(n).getList(sTID('points'));

// for subpathitem’s segment’s number of points;

  for (var o = 0; o < points.count; o++) {

  var anchorObj = points.getObjectValue(o).getObjectValue(sTID("anchor"));

  var anchor = [anchorObj.getUnitDoubleValue(sTID('horizontal')), anchorObj.getUnitDoubleValue(sTID('vertical'))];

  var thisPoint = [anchor];

  theArray[theArray.length - 1].push(anchor);

  };

  };

  };

// by xbytor, thanks to him;

function cTID (s) { return cTID || cTID = app.charIDToTypeID(s); };

function sTID (s) { return sTID || sTID = app.stringIDToTypeID(s); };

// reset;

app.preferences.rulerUnits = originalRulerUnits;

return theArray;

};