Rotate layers incremental script

You need to pass the function three variables +-Angle the X point position and the y point position. anf the layer yow want toe be rotated need to be the document active layer.

The function is used in my rotate layers about script.  A script the duplicates a layer and rotate it about poins  a number of times to do full 360 rotation.

// 2015  John J. McAssey (JJMack) 
// ======================================================= */
// This script is supplied as is. It is provided as freeware. 
// The author accepts no liability for any problems arising from its use.
// enable double-clicking from Mac Finder or Windows Explorer
#target photoshop // this command only works in Photoshop CS2 and higher
// bring application forward for double-click events
app.bringToFront();
// ensure at least one document open
if (!documents.length) alert('There are no documents open.', 'No Document');
else {
//Set First Time Defaults here
var dfltCpys = 12; // default number of copies including the original
var dfltPos = 4; // default Middle Center
//End Defaults
var Prefs ={}; //Object to hold preferences.
var prefsFile = File(Folder.temp + "/RotateLayerAboutPreferences.dat");
//If preferences do not exit use Defaults from above
if(!prefsFile.exists){
Prefs.Cpys  = dfltCpys;
Prefs.Pos  = dfltPos;
prefsFile.open('w');
prefsFile.write(Prefs.toSource());
prefsFile.close();
}
else{//Preferences exist so open them
prefsFile.open('r');
Prefs = eval(prefsFile.read());
prefsFile.close();
}
try {
function createDialog(){
// begin dialog layout
var DupRotateDialog = new Window('dialog');
DupRotateDialog.text = 'Duplicate and Rotate Layer';
DupRotateDialog.frameLocation = [78, 100];
DupRotateDialog.alignChildren = 'center';
DupRotateDialog.NumLayerPnl = DupRotateDialog.add('panel', [2, 2, 300, 56], 'Number of Layers and Rotation Anchor Point');
DupRotateDialog.NumLayerPnl.add('statictext', [10, 16, 50, 48], 'Copies ');
DupRotateDialog.NumLayerPnl.imgCpysEdt = DupRotateDialog.NumLayerPnl.add('edittext', [50, 13, 90, 34], Prefs.Cpys, {name:'imgCpys'});
DupRotateDialog.NumLayerPnl.imgCpysEdt.helpTip = 'Number of copies of selected Layer';
DupRotateDialog.NumLayerPnl.add('statictext',[96, 16, 240, 48],'Location');
var position =['Top Left','Top Center','Top Right','Center Left','Center','Center Right','Bottom Left','Bottom Center','Bottom Right','Doc Center','Samples','Path Points'];
DupRotateDialog.NumLayerPnl.dd1 = DupRotateDialog.NumLayerPnl.add('dropdownlist',[150, 13, 260, 34],position);
DupRotateDialog.NumLayerPnl.dd1.selection=Prefs.Pos;
var buttons = DupRotateDialog.add('group');
buttons.orientation = 'row';
var okBtn = buttons.add('button');
okBtn.text = 'OK';
okBtn.properties = {name: 'ok'};
var cancelBtn = buttons.add('button');
cancelBtn.text = 'Cancel';
cancelBtn.properties = {name: 'cancel'};
return DupRotateDialog;
}
dispdlg(createDialog());
function dispdlg(DupRotateDialog){ 
// display dialog and only continues on OK button press (OK = 1, Cancel = 2)
DupRotateDialog.onShow = function() {
var ww = DupRotateDialog.bounds.width;  
var hh = DupRotateDialog.bounds.height;  
DupRotateDialog.bounds.x  = 78;  
DupRotateDialog.bounds.y  = 100;  
DupRotateDialog.bounds.width  = ww;  
DupRotateDialog.bounds.height  = hh;  
}
if (DupRotateDialog.show() == 1) {
//variables passed from user interface
var copies = String(DupRotateDialog.NumLayerPnl.imgCpys.text); if (copies=="") { copies = Prefs.Cpys;}
if (isNaN(copies)) { alert("Non numeric value entered"); dispdlg(createDialog());}
else {
if (copies<2 || copies>360) { alert("Number of layer allow is 2 to 360"); dispdlg(createDialog());}  // Not in range
else {
var AnchorPoint = Number(DupRotateDialog.NumLayerPnl.dd1.selection.index) + 1;
cTID = function(s) { return app.charIDToTypeID(s); };
sTID = function(s) { return app.stringIDToTypeID(s); };
// Save the current preferences
Prefs.Cpys  = copies;
Prefs.Pos  = Number(DupRotateDialog.NumLayerPnl.dd1.selection.index);
prefsFile.open('w');
prefsFile.write(Prefs.toSource());
prefsFile.close();
var startRulerUnits = app.preferences.rulerUnits;
var startTypeUnits = app.preferences.typeUnits;
var startDisplayDialogs = app.displayDialogs;
// Set Photoshop to use pixels and display no dialogs
app.preferences.rulerUnits = Units.PIXELS;
app.preferences.typeUnits = TypeUnits.PIXELS;
app.displayDialogs = DialogModes.NO;
app.togglePalettes();
try { app.activeDocument.suspendHistory('RotateLayerAbout','main(copies, AnchorPoint)' );} 
catch(e) {alert(e + ': on line ' + e.line);} 
// Return the app preferences
app.togglePalettes();
app.preferences.rulerUnits = startRulerUnits;
app.preferences.typeUnits = startTypeUnits;
app.displayDialogs = startDisplayDialogs;
}
}
}
else {
//alert('Operation Canceled.');
}
}
}
catch(err){
// Lot's of things can go wrong, Give a generic alert and see if they want the details
if ( confirm("Sorry, something major happened and I can't continue! Would you like to see more info?" ) ) { alert(err + ': on line ' + err.line ); }
}
}
function main(stemsAmount, Position) {
if  (  Position == 11 && app.activeDocument.colorSamplers.length==0 ) {
alert("No Color Sampler set");
return;
}
if  (  Position == 12 ) {
var thePath = selectedPath();
if (thePath == undefined) {
alert("No Path Selected");
return;
}
var myPathInfo = extractSubPathInfo(thePath);  
}
// Save selected layer to variable:
var originalStem = app.activeDocument.activeLayer;
// Run the copying process
if(stemsAmount != null){ 
// Calculate the rotation angle
var angle = 360 / parseInt(stemsAmount);
// Create a group for stems
var stemsGroup = app.activeDocument.layerSets.add();
stemsGroup.name = originalStem.name + " ("+stemsAmount+" stems)";
// Place original layer in group
originalStem.move(stemsGroup, ElementPlacement.INSIDE);
// Duplicate and rotate layers:
for(var i = 1; i < stemsAmount; i++){
// Duplicate original layer and save it to the variable
var newStem = originalStem.duplicate();
// Rotate new layer
switch (Position){
case 1 : newStem.rotate(angle * i, AnchorPosition.TOPLEFT); break;
case 2 : newStem.rotate(angle * i, AnchorPosition.TOPCENTER); break;
case 3 : newStem.rotate(angle * i, AnchorPosition.TOPRIGHT); break;
case 4 : newStem.rotate(angle * i, AnchorPosition.MIDDLELEFT); break;
case 5 : newStem.rotate(angle * i, AnchorPosition.MIDDLECENTER); break;
case 6 : newStem.rotate(angle * i, AnchorPosition.MIDDLERIGHT); break;
case 7 : newStem.rotate(angle * i, AnchorPosition.BOTTOMLEFT); break;
case 8 : newStem.rotate(angle * i, AnchorPosition.BOTTOMCENTER); break;
case 9 : newStem.rotate(angle * i, AnchorPosition.BOTTOMRIGHT); break;
case 10 : app.activeDocument.activeLayer = newStem; rotateAroundPosition(angle * i,activeDocument.width/2,activeDocument.height/2); break;
case 11 : for (var s=0,len=app.activeDocument.colorSamplers.length;s<len;s++) {
if (s!=0) {
// Duplicate original layer and save it to the variable
var newStem = originalStem.duplicate();
}
newStem.name = originalStem.name + " " + (i+1) + " p" + (s+1) ;
app.activeDocument.activeLayer = newStem;
var colorSamplerRef = app.activeDocument.colorSamplers;
//alert("angle=" + (angle * i) +  " ,x=" + colorSamplerRef.position[0].value + " ,y=" + colorSamplerRef.position[1].value);
rotateAroundPosition(angle * i,colorSamplerRef.position[0].value,colorSamplerRef.position[1].value);
newStem.move(stemsGroup, ElementPlacement.PLACEATEND);
                }; 
break; 
case 12 : for(var k=0;k<myPathInfo.length;k++){  
for(var j=0;j<myPathInfo.entireSubPath.length;j++){ 
if (k!=0 || j!=0) {
// Duplicate original layer and save it to the variable
var newStem = originalStem.duplicate();
}
newStem.name = originalStem.name + " " + (i+1) + " p" + (j+1) ;
app.activeDocument.activeLayer = newStem;
rotateAroundPosition(angle * i,myPathInfo.entireSubPath.anchor[0],myPathInfo.entireSubPath.anchor[1]);
newStem.move(stemsGroup, ElementPlacement.PLACEATEND);
}
}
break;
default : break;
}
// Add index to new layers
if (Position!=11) {
newStem.name = originalStem.name + " " + (i+1);
// Place new layer inside stems group
newStem.move(stemsGroup, ElementPlacement.PLACEATEND);
}
};
// Add index to the original layer
if (Position!=11) originalStem.name += " 1";
else originalStem.name += " 1 p1";
};
activeDocument.activeLayer = activeDocument.layers[0]; // Target top
var groupname = app.activeDocument.activeLayer.name // remember name of group  
var idungroupLayersEvent = stringIDToTypeID( "ungroupLayersEvent" ); // this part from  Script Listene -- ungroup group  
var desc14 = new ActionDescriptor();  
var idnull = charIDToTypeID( "null" );  
var ref13 = new ActionReference();  
var idLyr = charIDToTypeID( "Lyr " );  
var idOrdn = charIDToTypeID( "Ordn" );  
var idTrgt = charIDToTypeID( "Trgt" );  
ref13.putEnumerated( idLyr, idOrdn, idTrgt );  
desc14.putReference( idnull, ref13 );  
executeAction( idungroupLayersEvent, desc14, DialogModes.NO );  
var idMk = charIDToTypeID( "Mk  " ); // this part from  Script Listene --  group selected layers  
var desc15 = new ActionDescriptor();  
var idnull = charIDToTypeID( "null" );  
var ref14 = new ActionReference();  
var idlayerSection = stringIDToTypeID( "layerSection" );  
ref14.putClass( idlayerSection );  
desc15.putReference( idnull, ref14 );  
var idFrom = charIDToTypeID( "From" );  
var ref15 = new ActionReference();  
var idLyr = charIDToTypeID( "Lyr " );  
var idOrdn = charIDToTypeID( "Ordn" );  
var idTrgt = charIDToTypeID( "Trgt" );  
ref15.putEnumerated( idLyr, idOrdn, idTrgt );  
desc15.putReference( idFrom, ref15 );  
executeAction( idMk, desc15, DialogModes.NO );  
app.activeDocument.activeLayer.name = groupname // recall group name  
}
function rotateAroundPosition(_angle,x,y) {  
    var desc1 = new ActionDescriptor();  
    var desc2 = new ActionDescriptor();  
    var ref1 = new ActionReference();  
    ref1.putEnumerated(charIDToTypeID('Lyr '), charIDToTypeID('Ordn'), charIDToTypeID('Trgt'));  
    desc1.putReference(charIDToTypeID('null'), ref1);  
    desc1.putEnumerated(charIDToTypeID('FTcs'), charIDToTypeID('QCSt'), stringIDToTypeID("QCSIndependent"));  
    desc2.putUnitDouble(charIDToTypeID('Hrzn'), charIDToTypeID('#Pxl'), x);  
    desc2.putUnitDouble(charIDToTypeID('Vrtc'), charIDToTypeID('#Pxl'), y);  
    desc1.putObject(charIDToTypeID('Pstn'), charIDToTypeID('Pnt '), desc2);  
    desc1.putUnitDouble(charIDToTypeID('Angl'), charIDToTypeID('#Ang'), _angle);  
    desc1.putEnumerated(charIDToTypeID('Intr'), charIDToTypeID('Intp'), charIDToTypeID('Bcbc'));  
    executeAction(charIDToTypeID('Trnf'), desc1, DialogModes.NO);  
}
////// determine selected path //////
function selectedPath () {
try {
var ref = new ActionReference(); 
ref.putEnumerated( charIDToTypeID("Path"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
var desc = executeActionGet(ref);
var theName = desc.getString(charIDToTypeID("PthN"));
return app.activeDocument.pathItems.getByName(theName)
}
catch (e) {
return undefined
}
};
////// michael l hale’s code //////
function extractSubPathInfo(pathObj){  
    var pathArray = new Array();// each element can be used as the second arugment in pathItems.add ie doc.pathItems.add("myPath1", [pathArray[0]]);  
    var pl = pathObj.subPathItems.length;  
    for(var s=0;s<pl;s++){  
        var pArray = new Array();  
          for(var i=0;i<pathObj.subPathItems.pathPoints.length;i++){  
             pArray = new PathPointInfo;  
             pArray.kind = pathObj.subPathItems.pathPoints.kind;  
             pArray.anchor = pathObj.subPathItems.pathPoints.anchor;  
//alert("Anchor " + pathObj.subPathItems.pathPoints.anchor );
             pArray.leftDirection = pathObj.subPathItems.pathPoints.leftDirection;  
             pArray.rightDirection = pathObj.subPathItems.pathPoints.rightDirection;  
          };  
        pathArray[pathArray.length] = new Array();  
        pathArray[pathArray.length - 1] = new SubPathInfo();  
        pathArray[pathArray.length - 1].operation = pathObj.subPathItems.operation;  
        pathArray[pathArray.length - 1].closed = pathObj.subPathItems.closed;  
        pathArray[pathArray.length - 1].entireSubPath = pArray;  
    };  
    return pathArray;  
}; 

Higher resolution work better