model; semgenter & clone.js; use model available_axes variable

Don't create Axes object and call available function each time.
Reuse generated value stored in model.js
Link to #4077

browser/js/clone.js

@@ -1770,7 +1770,7 @@ Clone.prototype = {
         }
         var values = []
         var axes_obj = this.m.axes
-        var available_axes = axes_obj.available()
+        var available_axes = this.m.available_axes
 
         for (var a = 0; a < axes.length; a++) {
             var axe  = axes[a]
@@ -1882,9 +1882,8 @@ Clone.prototype = {
             value          = tmpValue
         }
 
-        var axes_obj = this.m.axes
         var naxe = this.m.distrib_convertion[axe]
-        var available_axes = axes_obj.available()
+        var available_axes = this.m.available_axes
         if (available_axes[naxe] != undefined) {
             if (available_axes[naxe].set != undefined) {
                 available_axes[naxe].set(this, value)

browser/js/model.js

@@ -63,6 +63,7 @@ function Model() {
     this.NORM_EXTERNAL  = "external"
     this.normalization_mode = this.NORM_FALSE
     this.axes = new Axes(this)
+    this.available_axes = this.axes.available()
 
     setInterval(function(){return self.updateIcon()}, 100); 
 }

browser/js/segmenter.js

@@ -657,7 +657,7 @@ Segment.prototype = {
     fillAxisBox: function (axisBox, clone) {
         axisBox.removeAllChildren();
         var axOpts = Clone.prototype.axisOptions();
-        var available_axis = (new Axes(this.m)).available();
+        var available_axis = this.m.available_axes
         for (var i in this.selectedAxis) {
             var span = document.createElement('span');
             var axis = this.selectedAxis[i];