getters added

frontend-js/src/main/js/map/data/Alias.js

@@ -152,6 +152,13 @@ Alias.prototype.setWidth = function(width) {
 Alias.prototype.setHeight = function(height) {
   this.height = height;
 };
+Alias.prototype.getWidth = function() {
+  return this.width;
+};
+
+Alias.prototype.getHeight = function() {
+  return this.height;
+};
 
 Alias.prototype.getName = function() {
   return this.name;