diff --git a/android-app-core/src/main/java/org/solovyev/android/calculator/CalculatorDisplayMenuItem.java b/android-app-core/src/main/java/org/solovyev/android/calculator/CalculatorDisplayMenuItem.java
index f3f990df..589e08e4 100644
--- a/android-app-core/src/main/java/org/solovyev/android/calculator/CalculatorDisplayMenuItem.java
+++ b/android-app-core/src/main/java/org/solovyev/android/calculator/CalculatorDisplayMenuItem.java
@@ -5,6 +5,7 @@ import jscl.math.Generic;
 import org.jetbrains.annotations.NotNull;
 import org.solovyev.android.calculator.core.R;
 import org.solovyev.android.calculator.jscl.JsclOperation;
+import org.solovyev.android.calculator.plot.CalculatorPlotter;
 import org.solovyev.android.calculator.view.NumeralBaseConverterDialog;
 import org.solovyev.android.menu.LabeledMenuItem;
 
@@ -79,9 +80,8 @@ public enum CalculatorDisplayMenuItem implements LabeledMenuItem<CalculatorDispl
             final Generic expression = data.getResult();
             assert expression != null;
 
-            Locator.getInstance().getPlotter().removeAllUnpinned();
-            Locator.getInstance().getPlotter().addFunction(expression);
-            Locator.getInstance().getPlotter().plot();
+            final CalculatorPlotter plotter = Locator.getInstance().getPlotter();
+            plotter.plot(expression);
         }
 
         @Override
diff --git a/android-app-core/src/main/java/org/solovyev/android/calculator/plot/AndroidCalculatorPlotter.java b/android-app-core/src/main/java/org/solovyev/android/calculator/plot/AndroidCalculatorPlotter.java
index 62d6fb7a..f19e9b49 100644
--- a/android-app-core/src/main/java/org/solovyev/android/calculator/plot/AndroidCalculatorPlotter.java
+++ b/android-app-core/src/main/java/org/solovyev/android/calculator/plot/AndroidCalculatorPlotter.java
@@ -123,6 +123,11 @@ public class AndroidCalculatorPlotter implements CalculatorPlotter, SharedPrefer
         plotter.plot();
     }
 
+    @Override
+    public void plot(@NotNull Generic expression) {
+        plotter.plot(expression);
+    }
+
     @Override
     public boolean is2dPlotPossible() {
         return plotter.is2dPlotPossible();
diff --git a/core/src/main/java/org/solovyev/android/calculator/plot/CalculatorPlotter.java b/core/src/main/java/org/solovyev/android/calculator/plot/CalculatorPlotter.java
index b4a451e2..6ac7bdf1 100644
--- a/core/src/main/java/org/solovyev/android/calculator/plot/CalculatorPlotter.java
+++ b/core/src/main/java/org/solovyev/android/calculator/plot/CalculatorPlotter.java
@@ -47,6 +47,7 @@ public interface CalculatorPlotter {
     List<PlotFunction> getVisibleFunctions();
 
     void plot();
+    void plot(@NotNull Generic expression);
 
     boolean is2dPlotPossible();
 
diff --git a/core/src/main/java/org/solovyev/android/calculator/plot/CalculatorPlotterImpl.java b/core/src/main/java/org/solovyev/android/calculator/plot/CalculatorPlotterImpl.java
index 17e97280..74bba028 100644
--- a/core/src/main/java/org/solovyev/android/calculator/plot/CalculatorPlotterImpl.java
+++ b/core/src/main/java/org/solovyev/android/calculator/plot/CalculatorPlotterImpl.java
@@ -27,6 +27,8 @@ public class CalculatorPlotterImpl implements CalculatorPlotter {
     @NotNull
     private final Calculator calculator;
 
+    private final PlotResourceManager plotResourceManager = new PlotResourceManager();
+
     private boolean plot3d = false;
 
     private boolean plotImag = false;
@@ -71,12 +73,17 @@ public class CalculatorPlotterImpl implements CalculatorPlotter {
 
         boolean realAdded = addFunction(new XyFunction(expression, xVariable, yVariable, false));
 
-        final PlotFunction imagPlotFunction = new PlotFunction(new XyFunction(expression, xVariable, yVariable, true));
+        final PlotFunction imagPlotFunction = newPlotFunction(new XyFunction(expression, xVariable, yVariable, true));
         final boolean imagAdded = addFunction(plotImag ? imagPlotFunction : PlotFunction.invisible(imagPlotFunction));
 
         return imagAdded || realAdded;
     }
 
+    @NotNull
+    private PlotFunction newPlotFunction(@NotNull XyFunction xyFunction) {
+        return new PlotFunction(xyFunction);
+    }
+
     @Override
     public boolean addFunction(@NotNull PlotFunction plotFunction) {
         synchronized (functions) {
@@ -119,7 +126,7 @@ public class CalculatorPlotterImpl implements CalculatorPlotter {
 
     @Override
     public boolean addFunction(@NotNull XyFunction xyFunction) {
-        return addFunction(new PlotFunction(xyFunction));
+        return addFunction(newPlotFunction(xyFunction));
     }
 
     @Override
@@ -258,6 +265,13 @@ public class CalculatorPlotterImpl implements CalculatorPlotter {
         calculator.fireCalculatorEvent(CalculatorEventType.plot_graph, null);
     }
 
+    @Override
+    public void plot(@NotNull Generic expression) {
+        removeAllUnpinned();
+        addFunction(expression);
+        plot();
+    }
+
     @Override
     public boolean is2dPlotPossible() {
         return arity < 2;
diff --git a/core/src/main/java/org/solovyev/android/calculator/plot/PlotResourceManager.java b/core/src/main/java/org/solovyev/android/calculator/plot/PlotResourceManager.java
new file mode 100644
index 00000000..5fc6ab8b
--- /dev/null
+++ b/core/src/main/java/org/solovyev/android/calculator/plot/PlotResourceManager.java
@@ -0,0 +1,10 @@
+package org.solovyev.android.calculator.plot;
+
+/**
+ * User: serso
+ * Date: 1/13/13
+ * Time: 8:19 PM
+ */
+class PlotResourceManager {
+
+}