4 files changed, 33 insertions, 4 deletions
diff --git a/src/GudhUI/gui/MainWindow.cpp b/src/GudhUI/gui/MainWindow.cpp
index f1dd8e83..f5abfffc 100644
--- a/src/GudhUI/gui/MainWindow.cpp
+++ b/src/GudhUI/gui/MainWindow.cpp
@@ -96,8 +96,8 @@ MainWindow::connectActions(){
 				SLOT(show_euler_characteristic()));
 	QObject::connect(this->actionPersistence, SIGNAL(triggered()), this,
 				SLOT(persistence_menu()));
-
-
+	QObject::connect(this->actionEstimate_topological_changes, SIGNAL(triggered()), this,
+				SLOT(critical_points_menu()));
 
 	QObject::connect(this, SIGNAL(sceneChanged()), this->viewer_instructor_,
 			SLOT(sceneChanged()));
@@ -278,6 +278,14 @@ MainWindow::compute_persistence(int p,double threshold,int max_dim,double min_pe
 	model_.show_persistence(p,threshold,max_dim,min_pers);
 }
 
+void
+MainWindow::critical_points_menu(){
+	bool ok;
+	double max_length = QInputDialog::getDouble(this, tr("Maximal edge length for the Rips"),
+			tr("Maximal edge length:"), 0, 0, 10000, 3, &ok);
+	if (ok)
+		model_.show_critical_points(max_length);
+}
 
 
 #include "MainWindow.moc"
diff --git a/src/GudhUI/gui/MainWindow.h b/src/GudhUI/gui/MainWindow.h
index 0eef29ed..506a1f3a 100644
--- a/src/GudhUI/gui/MainWindow.h
+++ b/src/GudhUI/gui/MainWindow.h
@@ -83,7 +83,7 @@ public:
 	void show_euler_characteristic();
 	void persistence_menu();
 	void compute_persistence(int p,double threshold,int max_dim,double min_pers);
-
+	void critical_points_menu();
 
 
 public:
diff --git a/src/GudhUI/gui/UniformNeighborsMenu.ui b/src/GudhUI/gui/UniformNeighborsMenu.ui
index 1f7cf980..f8ef7a24 100644
--- a/src/GudhUI/gui/UniformNeighborsMenu.ui
+++ b/src/GudhUI/gui/UniformNeighborsMenu.ui
@@ -34,7 +34,7 @@
     <rect>
      <x>30</x>
      <y>10</y>
-     <width>249</width>
+     <width>262</width>
      <height>84</height>
     </rect>
    </property>
@@ -72,6 +72,9 @@
     </item>
     <item row="0" column="1">
      <widget class="QDoubleSpinBox" name="doubleSpinBoxAlpha">
+      <property name="decimals">
+       <number>3</number>
+      </property>
       <property name="maximum">
        <double>100000000.000000000000000</double>
       </property>
diff --git a/src/GudhUI/gui/main_window.ui b/src/GudhUI/gui/main_window.ui
index ac3caf41..8a7ad7da 100644
--- a/src/GudhUI/gui/main_window.ui
+++ b/src/GudhUI/gui/main_window.ui
@@ -89,6 +89,7 @@
     <addaction name="actionEuler_characteristic"/>
     <addaction name="actionShow_homology_group"/>
     <addaction name="actionPersistence"/>
+    <addaction name="actionEstimate_topological_changes"/>
    </widget>
    <addaction name="menuFile"/>
    <addaction name="menuPoints"/>
@@ -209,15 +210,32 @@
    </property>
   </action>
   <action name="actionEuler_characteristic">
+   <property name="enabled">
+    <bool>true</bool>
+   </property>
    <property name="text">
     <string>Euler characteristic</string>
    </property>
+   <property name="visible">
+    <bool>true</bool>
+   </property>
   </action>
   <action name="actionHomology_groups">
    <property name="text">
     <string>Homology groups</string>
    </property>
   </action>
+  <action name="actionEstimate_topological_changes">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="text">
+    <string>Rips critical points approximation</string>
+   </property>
+   <property name="visible">
+    <bool>false</bool>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>