diff --git a/OpenMesh/OMPropertyVisualizerIntegerT_impl.hh b/OpenMesh/OMPropertyVisualizerIntegerT_impl.hh
index 4822634f194f039d833dcc54f809c1f311b180f9..3a9684b101c83c4d5d2b665ff7f9d6e311b8a70e 100644
--- a/OpenMesh/OMPropertyVisualizerIntegerT_impl.hh
+++ b/OpenMesh/OMPropertyVisualizerIntegerT_impl.hh
@@ -61,6 +61,8 @@ OMPropertyVisualizerInteger<MeshT, T>::OMPropertyVisualizerInteger(MeshT* _mesh,
         w->intAbsolute->setChecked(false); //because we already have unsigned integers wo don't have to calculate their absolute value
         w->intAbsolute->setCheckable(false);
     }
+    this->connect(w->computeHistogramButton, &QPushButton::clicked,
+                  [this, w](){this->template showHistogram<T>(w->histogram);});
 }
 
 template <typename MeshT,typename T>
diff --git a/OpenVolumeMesh/OVMPropertyVisualizer.hh b/OpenVolumeMesh/OVMPropertyVisualizer.hh
index 6791d9b8d1498597b484be6885d0eff657f11a5d..50e67b6f16335927a0bfad71214643012d31cc5f 100644
--- a/OpenVolumeMesh/OVMPropertyVisualizer.hh
+++ b/OpenVolumeMesh/OVMPropertyVisualizer.hh
@@ -162,7 +162,7 @@ template <Template> \
 void Classname::visualizeCellProp(bool _setDrawMode) \
 {\
     OpenVolumeMesh::CellPropertyT<PropType> prop = OVMPropertyVisualizer<MeshT>::mesh->template request_cell_property<PropType>(OVMPropertyVisualizer<MeshT>::propertyInfo.propName());\
-    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->cells_begin(), OVMPropertyVisualizer<MeshT>::mesh->cells_end());\
+    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->cells());\
     if (_setDrawMode)\
     {\
         VolumeMeshObject<MeshT>* object;\
@@ -174,7 +174,7 @@ template <Template>\
 void Classname::visualizeFaceProp(bool _setDrawMode)\
 {\
     OpenVolumeMesh::FacePropertyT<PropType> prop = OVMPropertyVisualizer<MeshT>::mesh->template request_face_property<PropType>(OVMPropertyVisualizer<MeshT>::propertyInfo.propName());\
-    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->faces_begin(), OVMPropertyVisualizer<MeshT>::mesh->faces_end());\
+    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->faces());\
     if (_setDrawMode)\
     {\
         VolumeMeshObject<MeshT>* object;\
@@ -186,7 +186,7 @@ template <Template>\
 void Classname::visualizeHalffaceProp(bool _setDrawMode)\
 {\
     OpenVolumeMesh::HalfFacePropertyT<PropType> prop = OVMPropertyVisualizer<MeshT>::mesh->template request_halfface_property<PropType>(OVMPropertyVisualizer<MeshT>::propertyInfo.propName());\
-    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->halffaces_begin(), OVMPropertyVisualizer<MeshT>::mesh->halffaces_end());\
+    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->halffaces());\
     if (_setDrawMode)\
     {\
         VolumeMeshObject<MeshT>* object;\
@@ -198,7 +198,7 @@ template <Template>\
 void Classname::visualizeEdgeProp(bool _setDrawMode)\
 {\
     OpenVolumeMesh::EdgePropertyT<PropType> prop = OVMPropertyVisualizer<MeshT>::mesh->template request_edge_property<PropType>(OVMPropertyVisualizer<MeshT>::propertyInfo.propName());\
-    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->edges_begin(), OVMPropertyVisualizer<MeshT>::mesh->edges_end());\
+    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->edges());\
     if (_setDrawMode)\
     {\
         VolumeMeshObject<MeshT>* object;\
@@ -210,7 +210,7 @@ template <Template>\
 void Classname::visualizeHalfedgeProp(bool _setDrawMode)\
 {\
     OpenVolumeMesh::HalfEdgePropertyT<PropType> prop = OVMPropertyVisualizer<MeshT>::mesh->template request_halfedge_property<PropType>(OVMPropertyVisualizer<MeshT>::propertyInfo.propName());\
-    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->halfedges_begin(), OVMPropertyVisualizer<MeshT>::mesh->halfedges_end());\
+    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->halfedges());\
     if (_setDrawMode)\
     {\
         VolumeMeshObject<MeshT>* object;\
@@ -222,7 +222,7 @@ template <Template>\
 void Classname::visualizeVertexProp(bool _setDrawMode)\
 {\
     OpenVolumeMesh::VertexPropertyT<PropType> prop = OVMPropertyVisualizer<MeshT>::mesh->template request_vertex_property<PropType>(OVMPropertyVisualizer<MeshT>::propertyInfo.propName());\
-    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->vertices_begin(), OVMPropertyVisualizer<MeshT>::mesh->vertices_end());\
+    visualizeProp(prop, OVMPropertyVisualizer<MeshT>::mesh->vertices());\
     if (_setDrawMode)\
     {\
         VolumeMeshObject<MeshT>* object;\
diff --git a/OpenVolumeMesh/OVMPropertyVisualizerBoolean.hh b/OpenVolumeMesh/OVMPropertyVisualizerBoolean.hh
index 53e9a1ef48b5b8a0de4160c9b00961cfa516b4c5..5cd88cc912a591f35c945c9b67f2d4d152f9775f 100644
--- a/OpenVolumeMesh/OVMPropertyVisualizerBoolean.hh
+++ b/OpenVolumeMesh/OVMPropertyVisualizerBoolean.hh
@@ -59,8 +59,8 @@ public:
 
 protected:
 
-    template <typename PropType, typename EntityIterator>
-    void visualizeProp(PropType prop, EntityIterator e_begin, EntityIterator e_end);
+    template <typename PropType, typename HandleIterable>
+    void visualizeProp(PropType prop, HandleIterable handles);
     void duplicateProperty() override;
 
     void visualizeFaceProp(bool _setDrawMode = true) override;
diff --git a/OpenVolumeMesh/OVMPropertyVisualizerBooleanT_impl.hh b/OpenVolumeMesh/OVMPropertyVisualizerBooleanT_impl.hh
index 323c6e5799c65c2ec697dabd31228f1f8c2b2aad..1fe017f5a5b56a6d8434f4f68865ba9cdff505c5 100644
--- a/OpenVolumeMesh/OVMPropertyVisualizerBooleanT_impl.hh
+++ b/OpenVolumeMesh/OVMPropertyVisualizerBooleanT_impl.hh
@@ -59,8 +59,8 @@ OVMPropertyVisualizerBoolean<MeshT>::OVMPropertyVisualizerBoolean(MeshT* _mesh,
 }
 
 template <typename MeshT>
-template <typename PropType, typename EntityIterator>
-void OVMPropertyVisualizerBoolean<MeshT>::visualizeProp(PropType prop, EntityIterator e_begin, EntityIterator e_end)
+template <typename PropType, typename HandleIterable>
+void OVMPropertyVisualizerBoolean<MeshT>::visualizeProp(PropType prop, HandleIterable handles)
 {
     if (!prop)
         return;
@@ -74,11 +74,11 @@ void OVMPropertyVisualizerBoolean<MeshT>::visualizeProp(PropType prop, EntityIte
     VolumeMeshObject<MeshT>* object;
     PluginFunctions::getObject(OVMPropertyVisualizer<MeshT>::mObjectID, object);
 
-    for (EntityIterator e_it = e_begin ; e_it != e_end; ++e_it)
-        if ( prop[*e_it] )
-            object->colors()[*e_it] = colorTrue;
+    for (const auto &h: handles)
+        if ( prop[h] )
+            object->colors()[h] = colorTrue;
         else
-            object->colors()[*e_it] = colorFalse;
+            object->colors()[h] = colorFalse;
 }
 CALLS_TO_VISUALIZE_PROP(OVMPropertyVisualizerBoolean<MeshT>, typename MeshT, bool)
 
diff --git a/OpenVolumeMesh/OVMPropertyVisualizerDouble.hh b/OpenVolumeMesh/OVMPropertyVisualizerDouble.hh
index 68cb4659e93a8f6b563fe0424f8fa1e0032ed2da..4bae12d8da9736a96c1c1f35ba544777bc95986a 100644
--- a/OpenVolumeMesh/OVMPropertyVisualizerDouble.hh
+++ b/OpenVolumeMesh/OVMPropertyVisualizerDouble.hh
@@ -63,8 +63,8 @@ public:
     virtual ~OVMPropertyVisualizerDouble(){}
 
 protected:
-    template <typename PropType, typename EntityIterator>
-    void visualizeProp(PropType prop, EntityIterator e_begin, EntityIterator e_end);
+    template <typename PropType, typename HandleIterable>
+    void visualizeProp(PropType prop, HandleIterable handles);
     void duplicateProperty() override;
 
     void visualizeFaceProp(bool _setDrawMode = true) override;
diff --git a/OpenVolumeMesh/OVMPropertyVisualizerDoubleT_impl.hh b/OpenVolumeMesh/OVMPropertyVisualizerDoubleT_impl.hh
index 784a8a4b48734b27d7d76d0fc5670f9b038e291d..e9b3e2a898eb04e801b7cb6849a1566a8b1c6a24 100644
--- a/OpenVolumeMesh/OVMPropertyVisualizerDoubleT_impl.hh
+++ b/OpenVolumeMesh/OVMPropertyVisualizerDoubleT_impl.hh
@@ -66,37 +66,31 @@ OVMPropertyVisualizerDouble<MeshT>::OVMPropertyVisualizerDouble(MeshT* _mesh, in
 }
 
 template <typename MeshT>
-template <typename PropType, typename EntityIterator>
-void OVMPropertyVisualizerDouble<MeshT>::visualizeProp(PropType prop, EntityIterator e_begin, EntityIterator e_end)
+template <typename PropType, typename HandleIterable>
+void OVMPropertyVisualizerDouble<MeshT>::visualizeProp(PropType prop, HandleIterable handles)
 {
+    using Handle = decltype(*begin(handles));
     if (!prop) return;
 
     DoubleWidget* doubleWidget = static_cast<DoubleWidget*>(PropertyVisualizer::widget);
-    ACG::Vec4f colorMin = ACG::to_Vec4f(doubleWidget->doubleMin->color());
 
     auto cc = doubleWidget->buildColorCoder();
-    double min, max;
-
-    if ( doubleWidget->doubleAbsolute->isChecked() ){
-        min = FLT_MAX;
-        max = 0.0;
-    } else {
-        min = FLT_MAX;
-        max = FLT_MIN;
-    }
 
-    for (EntityIterator e_it = e_begin; e_it != e_end; ++e_it){
-        double value = prop[*e_it];
-        if ( doubleWidget->doubleAbsolute->isChecked() ){
-            min = std::min( min, fabs(value));
-            max = std::max( max, fabs(value));
+    bool abs = doubleWidget->doubleAbsolute->isChecked();
+    auto transform_value = [abs](double v) {
+        if (abs) {
+            return std::fabs(v);
         } else {
-            min = std::min( min, value);
-            max = std::max( max, value);
-        }
-    }
+            return v;
+        };
+    };
+
+    auto get_value = [&](Handle handle)
+    {
+        return transform_value(prop[handle]);
+    };
 
-    // fixed range?
+    double min, max;
     if( doubleWidget->doubleFixedRange->isChecked())
     {
         min = doubleWidget->doubleFixedRangeMin->value();
@@ -104,6 +98,13 @@ void OVMPropertyVisualizerDouble<MeshT>::visualizeProp(PropType prop, EntityIter
     }
     else
     {
+        min = std::numeric_limits<double>::infinity();
+        max = -std::numeric_limits<double>::infinity();
+        for (const Handle &h: handles) {
+            auto value = get_value(h);
+            min = std::min(min, value);
+            max = std::max(max, value);
+        }
         doubleWidget->doubleFixedRangeMin->setValue(min);
         doubleWidget->doubleFixedRangeMax->setValue(max);
     }
@@ -112,21 +113,11 @@ void OVMPropertyVisualizerDouble<MeshT>::visualizeProp(PropType prop, EntityIter
 
     VolumeMeshObject<MeshT>* object;
     PluginFunctions::getObject(OVMPropertyVisualizer<MeshT>::mObjectID, object);
-    for (EntityIterator e_it = e_begin; e_it != e_end; ++e_it){
-
-        if (range == 0.0)
-            object->colors()[*e_it] = colorMin;
-        else {
-
-            double value = prop[*e_it];
-
-            // absolut value?
-            if ( doubleWidget->doubleAbsolute->isChecked())
-                value = fabs(value);
-
-            double t = (value-min)/range;
-            object->colors()[*e_it] = cc->color_float4(t);
-        }
+    for (const Handle &h: handles)
+    {
+        double value = get_value(h);
+        double t = (value - min) / range;
+        object->colors()[h] = cc->color_float4(t);
     }
 }
 CALLS_TO_VISUALIZE_PROP(OVMPropertyVisualizerDouble<MeshT>, typename MeshT, double)
diff --git a/OpenVolumeMesh/OVMPropertyVisualizerInteger.hh b/OpenVolumeMesh/OVMPropertyVisualizerInteger.hh
index 5c912039327fb8e15aa697c945ae8f392d6c5871..404563a4f6e61711d0c382e6da5a94b5c80e2f42 100644
--- a/OpenVolumeMesh/OVMPropertyVisualizerInteger.hh
+++ b/OpenVolumeMesh/OVMPropertyVisualizerInteger.hh
@@ -61,8 +61,8 @@ public:
     virtual ~OVMPropertyVisualizerInteger(){}
 
 protected:
-    template <typename PropType, typename EntityIterator>
-    void visualizeProp(PropType prop, EntityIterator e_begin, EntityIterator e_end);
+    template <typename PropType, typename HandleIterable>
+    void visualizeProp(PropType prop, HandleIterable handles);
     void duplicateProperty() override;
 
     void visualizeFaceProp(bool _setDrawMode = true) override;
diff --git a/OpenVolumeMesh/OVMPropertyVisualizerIntegerT_impl.hh b/OpenVolumeMesh/OVMPropertyVisualizerIntegerT_impl.hh
index 739fb6928e0bad76ba66255b5acef76a3fb4fd98..e0b82ceda1e45594540902c3ee2724913e33f958 100644
--- a/OpenVolumeMesh/OVMPropertyVisualizerIntegerT_impl.hh
+++ b/OpenVolumeMesh/OVMPropertyVisualizerIntegerT_impl.hh
@@ -66,11 +66,14 @@ OVMPropertyVisualizerInteger<MeshT,T>::OVMPropertyVisualizerInteger(MeshT* _mesh
     mNumericLimitMax = std::numeric_limits<T>::max();
     mNumericLimitMin = std::numeric_limits<T>::min();
 
+    this->connect(w->computeHistogramButton, &QPushButton::clicked,
+                  [this, w](){this->template showHistogram<T>(w->histogram);});
+
 }
 
 template <typename MeshT, typename T>
-template <typename PropType, typename EntityIterator>
-void OVMPropertyVisualizerInteger<MeshT, T>::visualizeProp(PropType prop, EntityIterator e_begin, EntityIterator e_end)
+template <typename PropType, typename HandleIterable>
+void OVMPropertyVisualizerInteger<MeshT, T>::visualizeProp(PropType prop, HandleIterable handles)
 {
     if (!prop) return;
 
@@ -86,9 +89,9 @@ void OVMPropertyVisualizerInteger<MeshT, T>::visualizeProp(PropType prop, Entity
     T min = mNumericLimitMax;
     T max = mNumericLimitMin;
 
-    for (EntityIterator e_it = e_begin; e_it != e_end; ++e_it)
+    for (const auto &h: handles)
     {
-        T value = prop[*e_it];
+        T value = prop[h];
         min = std::min( min, value);
         max = std::max( max, value);
     }
@@ -110,12 +113,12 @@ void OVMPropertyVisualizerInteger<MeshT, T>::visualizeProp(PropType prop, Entity
     VolumeMeshObject<MeshT>* object;
     PluginFunctions::getObject(OVMPropertyVisualizer<MeshT>::mObjectID, object);
 
-    for (EntityIterator e_it = e_begin; e_it != e_end; ++e_it)
+    for (const auto &h: handles)
     {
         if (range == 0)
-            object->colors()[*e_it] = colorMin;
+            object->colors()[h] = colorMin;
         else {
-            T value = prop[*e_it];
+            T value = prop[h];
             double pos = (value - min) / (double) range;
             ACG::Vec4f color;
             if ( integerWidget->intRandom->isChecked() )
@@ -134,7 +137,7 @@ void OVMPropertyVisualizerInteger<MeshT, T>::visualizeProp(PropType prop, Entity
                 color = cc->color_float4(pos);
             }
 
-            object->colors()[*e_it] = color;
+            object->colors()[h] = color;
         }
     }
 }
diff --git a/OpenVolumeMesh/OVMPropertyVisualizerT_impl.hh b/OpenVolumeMesh/OVMPropertyVisualizerT_impl.hh
index 3728853f3083f1b031efe949044aec7b626b5f0c..dbec6f8bb5a9396f5f0842b56ce51c929b3540cc 100644
--- a/OpenVolumeMesh/OVMPropertyVisualizerT_impl.hh
+++ b/OpenVolumeMesh/OVMPropertyVisualizerT_impl.hh
@@ -403,7 +403,8 @@ void OVMPropertyVisualizer<MeshT>::setVertexPropertyFromText(unsigned int /*inde
 
 template<typename MeshT>
 template<typename Type>
-void OVMPropertyVisualizer<MeshT>::showHistogram(ACG::QtWidgets::QtHistogramWidget *histogramWidget) {
+void OVMPropertyVisualizer<MeshT>::showHistogram(ACG::QtWidgets::QtHistogramWidget *histogramWidget)
+{
     using PV = OVMPropertyVisualizer<MeshT>;
     const std::string &prop_name = PV::propertyInfo.propName();
 
diff --git a/PropertyVisualizer/PropertyVisualizer.cc b/PropertyVisualizer/PropertyVisualizer.cc
index 7864ef50f03afdf6c0dc50f72d28da7b960b8a34..4665ba2020d0f1480ea9808bb4898d8ddc1e21cd 100644
--- a/PropertyVisualizer/PropertyVisualizer.cc
+++ b/PropertyVisualizer/PropertyVisualizer.cc
@@ -161,5 +161,5 @@ OpenMesh::Vec2f PropertyVisualizer::strToVec2f (QString str)
 
 std::unique_ptr<ACG::IColorCoder> PropertyVisualizer::buildColorCoder()
 {
-    throw std::runtime_error("Requested color coder on a Propvis that does not implement it");
+    return nullptr;
 }
diff --git a/PropertyVisualizer/PropertyVisualizer.hh b/PropertyVisualizer/PropertyVisualizer.hh
index d8a0d0fbb9c2c780af4e74cdae05e2dfa9281624..7a63565dfe1af8520a83484a3987ccf9d32617cc 100644
--- a/PropertyVisualizer/PropertyVisualizer.hh
+++ b/PropertyVisualizer/PropertyVisualizer.hh
@@ -193,10 +193,9 @@ void PropertyVisualizer::showHistogramT(
         ACG::QtWidgets::QtHistogramWidget *widget,
         Iterable data)
 {
-    const size_t max_bins = 50; // TODO: expose in GUI?
     widget->setMinimumHeight(300);
     widget->setColorCoder(buildColorCoder());
-    widget->setHistogram(ptr::make_unique<ACG::HistogramT<PropType>>(data.begin(), data.end(), max_bins));
+    widget->setHistogram(ACG::create_histogram_auto(data));
 }
 
 #endif /* PROPERTY_VISUALIZER_HH */
diff --git a/Widgets/IntegerWidget.ui b/Widgets/IntegerWidget.ui
index 1d6fd130be7b3dc6ce51201600e8851e67efbe1d..3305746ee8b29ae4bf8812b8ba7ed2687ea8359d 100644
--- a/Widgets/IntegerWidget.ui
+++ b/Widgets/IntegerWidget.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>387</width>
-    <height>243</height>
+    <width>443</width>
+    <height>566</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -17,7 +17,16 @@
    <property name="spacing">
     <number>0</number>
    </property>
-   <property name="margin">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
     <number>0</number>
    </property>
    <item>
@@ -164,6 +173,35 @@
         </item>
        </layout>
       </item>
+      <item>
+       <widget class="QGroupBox" name="histogramGroupbox">
+        <property name="title">
+         <string>Histogram</string>
+        </property>
+        <layout class="QVBoxLayout" name="verticalLayout">
+         <item>
+          <widget class="QPushButton" name="computeHistogramButton">
+           <property name="text">
+            <string>Compute Histogram</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="ACG::QtWidgets::QtHistogramWidget" name="histogram" native="true">
+           <property name="enabled">
+            <bool>false</bool>
+           </property>
+           <property name="minimumSize">
+            <size>
+             <width>0</width>
+             <height>0</height>
+            </size>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>
@@ -175,6 +213,12 @@
    <extends>QPushButton</extends>
    <header>ACG/QtWidgets/QtColorChooserButton.hh</header>
   </customwidget>
+  <customwidget>
+   <class>ACG::QtWidgets::QtHistogramWidget</class>
+   <extends>QWidget</extends>
+   <header>ACG/QtWidgets/QtHistogramWidget.hh</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <tabstops>
   <tabstop>intFixedRange</tabstop>