diff --git a/build/pipelines/templates/build-app-internal.yaml b/build/pipelines/templates/build-app-internal.yaml
index 51eb1d2..96958fb 100644
--- a/build/pipelines/templates/build-app-internal.yaml
+++ b/build/pipelines/templates/build-app-internal.yaml
@@ -29,7 +29,7 @@ jobs:
       downloadDirectory: $(Build.SourcesDirectory)
       vstsFeed: WindowsApps
       vstsFeedPackage: calculator-internals
-      vstsPackageVersion: 0.0.31
+      vstsPackageVersion: 0.0.33
 
   - template: ./build-single-architecture.yaml
     parameters:
diff --git a/src/GraphControl/DirectX/RenderMain.cpp b/src/GraphControl/DirectX/RenderMain.cpp
index 4e54aaa..c70970b 100644
--- a/src/GraphControl/DirectX/RenderMain.cpp
+++ b/src/GraphControl/DirectX/RenderMain.cpp
@@ -179,10 +179,19 @@ namespace GraphControl::DX
 
                         int formulaId = -1;
                         float nearestPointLocationX, nearestPointLocationY;
-                        float nearestPointValueX, nearestPointValueY;
+                        double nearestPointValueX, nearestPointValueY, rhoValueOut, thetaValueOut, tValueOut;
 
                         if (renderer->GetClosePointData(
-                                trackPoint.X, trackPoint.Y, formulaId, nearestPointLocationX, nearestPointLocationY, nearestPointValueX, nearestPointValueY)
+                                trackPoint.X,
+                                trackPoint.Y,
+                                formulaId,
+                                nearestPointLocationX,
+                                nearestPointLocationY,
+                                nearestPointValueX,
+                                nearestPointValueY,
+                                rhoValueOut,
+                                thetaValueOut,
+                                tValueOut)
                             == S_OK)
                         {
                             if (!isnan(nearestPointLocationX) && !isnan(nearestPointLocationY))
diff --git a/src/GraphingImpl/Mocks/GraphRenderer.h b/src/GraphingImpl/Mocks/GraphRenderer.h
index 964105d..b4abcaf 100644
--- a/src/GraphingImpl/Mocks/GraphRenderer.h
+++ b/src/GraphingImpl/Mocks/GraphRenderer.h
@@ -38,19 +38,25 @@ namespace MockGraphingImpl
         }
 
         virtual HRESULT GetClosePointData(
-            float inScreenPointX,
-            float inScreenPointY,
+            double inScreenPointX,
+            double inScreenPointY,
             int& formulaIdOut,
             float& xScreenPointOut,
             float& yScreenPointOut,
-            float& xValueOut,
-            float& yValueOut)
+            double& xValueOut,
+            double& yValueOut,
+            double& rhoValueOut,
+            double& thetaValueOut,
+            double& tValueOut)
         {
             formulaIdOut = 0;
             xScreenPointOut = 0;
             yScreenPointOut = 0;
             xValueOut = 0;
             yValueOut = 0;
+            rhoValueOut = 0;
+            thetaValueOut = 0;
+            tValueOut = 0;
             return S_OK;
         }
 
diff --git a/src/GraphingInterfaces/IGraphRenderer.h b/src/GraphingInterfaces/IGraphRenderer.h
index 388b80c..9772f23 100644
--- a/src/GraphingInterfaces/IGraphRenderer.h
+++ b/src/GraphingInterfaces/IGraphRenderer.h
@@ -23,7 +23,17 @@ namespace Graphing::Renderer
 		virtual HRESULT SetDpi(float dpiX, float dpiY) = 0;
 
 		virtual HRESULT DrawD2D1(ID2D1Factory* pDirect2dFactory, ID2D1RenderTarget* pRenderTarget, bool& hasSomeMissingDataOut) = 0;
-		virtual HRESULT GetClosePointData(float inScreenPointX, float inScreenPointY, int& formulaIdOut, float& xScreenPointOut, float& yScreenPointOut, float& xValueOut, float& yValueOut) = 0;
+        virtual HRESULT GetClosePointData(
+            double inScreenPointX,
+            double inScreenPointY,
+            int& formulaIdOut,
+            float& xScreenPointOut,
+            float& yScreenPointOut,
+            double& xValueOut,
+            double& yValueOut,
+            double& rhoValueOut,
+            double& thetaValueOut,
+            double& tValueOut) = 0;
 
 		virtual HRESULT ScaleRange(double centerX, double centerY, double scale) = 0;
 		virtual HRESULT ChangeRange(ChangeRangeAction action) = 0;