diff --git a/BonVision/BonVision.csproj b/BonVision/BonVision.csproj
index 19b7a6e..103bc13 100644
--- a/BonVision/BonVision.csproj
+++ b/BonVision/BonVision.csproj
@@ -14,7 +14,7 @@
     <GeneratePackageOnBuild Condition="'$(Configuration)'=='Release'">true</GeneratePackageOnBuild>
     <TargetFramework>net462</TargetFramework>
     <Features>strict</Features>
-    <Version>0.9.0</Version>
+    <Version>0.9.1</Version>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/BonVision/DegreeConverter.cs b/BonVision/DegreeConverter.cs
index 0d4d69e..60dda4e 100644
--- a/BonVision/DegreeConverter.cs
+++ b/BonVision/DegreeConverter.cs
@@ -6,14 +6,24 @@ namespace BonVision
 {
     class DegreeConverter : SingleConverter
     {
+        public static double RadianToDegree(double value)
+        {
+            return value * (180.0 / Math.PI);
+        }
+
+        public static double DegreeToRadian(double value)
+        {
+            return value * (Math.PI / 180.0);
+        }
+
         public static float RadianToDegree(float value)
         {
-            return (float)(value * (180.0 / Math.PI));
+            return (float)RadianToDegree((double)value);
         }
 
         public static float DegreeToRadian(float value)
         {
-            return (float)(value * (Math.PI / 180.0));
+            return (float)DegreeToRadian((double)value);
         }
 
         public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
@@ -42,7 +52,7 @@ public override object ConvertTo(ITypeDescriptorContext context, CultureInfo cul
 
     class NullableDegreeConverter : NullableConverter
     {
-        TypeConverter degreeConverter;
+        readonly TypeConverter degreeConverter;
 
         public NullableDegreeConverter(Type type)
             : base(type)
diff --git a/BonVision/Environment/ViewWindow.bonsai b/BonVision/Environment/ViewWindow.bonsai
index 9b1623d..005c611 100644
--- a/BonVision/Environment/ViewWindow.bonsai
+++ b/BonVision/Environment/ViewWindow.bonsai
@@ -48,7 +48,7 @@
       </Expression>
       <Expression xsi:type="PropertyMapping">
         <PropertyMappings>
-          <Property Name="Rotation" Selector="X,Y,Z" />
+          <Property Name="Rotation" />
         </PropertyMappings>
       </Expression>
       <Expression xsi:type="ExternalizedMapping">
diff --git a/BonVision/RotationConverter.cs b/BonVision/RotationConverter.cs
index 42c83ad..ab1443a 100644
--- a/BonVision/RotationConverter.cs
+++ b/BonVision/RotationConverter.cs
@@ -10,8 +10,8 @@ class RotationConverter : NumericRecordConverter
     {
         public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
         {
-            var rotation = (Point3f)base.ConvertFrom(context, culture, value);
-            return new Point3f(
+            var rotation = (Point3d)base.ConvertFrom(context, culture, value);
+            return new Point3d(
                 DegreeConverter.DegreeToRadian(rotation.X),
                 DegreeConverter.DegreeToRadian(rotation.Y),
                 DegreeConverter.DegreeToRadian(rotation.Z));
@@ -19,8 +19,8 @@ public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo c
 
         public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
         {
-            var rotation = (Point3f)value;
-            value = new Point3f(
+            var rotation = (Point3d)value;
+            value = new Point3d(
                 DegreeConverter.RadianToDegree(rotation.X),
                 DegreeConverter.RadianToDegree(rotation.Y),
                 DegreeConverter.RadianToDegree(rotation.Z));
diff --git a/BonVision/RotationProperty.cs b/BonVision/RotationProperty.cs
index 72702da..52f08a8 100644
--- a/BonVision/RotationProperty.cs
+++ b/BonVision/RotationProperty.cs
@@ -14,13 +14,13 @@ namespace BonVision
     [WorkflowElementCategory(ElementCategory.Source)]
     public class RotationProperty
     {
-        Point3f value;
-        event Action<Point3f> ValueChanged;
+        Point3d value;
+        event Action<Point3d> ValueChanged;
 
         [XmlIgnore]
         [TypeConverter(typeof(RotationConverter))]
         [Description("The value of the rotation vector, in euler angle format.")]
-        public Point3f Value
+        public Point3d Value
         {
             get { return value; }
             set
@@ -32,39 +32,39 @@ public Point3f Value
 
         [Browsable(false)]
         [XmlElement("Value")]
-        public Point3f ValueXml
+        public Point3d ValueXml
         {
             get
             {
                 var x = DegreeConverter.RadianToDegree(value.X);
                 var y = DegreeConverter.RadianToDegree(value.Y);
                 var z = DegreeConverter.RadianToDegree(value.Z);
-                return new Point3f(x, y, z);
+                return new Point3d(x, y, z);
             }
             set
             {
                 var x = DegreeConverter.DegreeToRadian(value.X);
                 var y = DegreeConverter.DegreeToRadian(value.Y);
                 var z = DegreeConverter.DegreeToRadian(value.Z);
-                this.value = new Point3f(x, y, z);
+                this.value = new Point3d(x, y, z);
             }
         }
 
-        void OnValueChanged(Point3f value)
+        void OnValueChanged(Point3d value)
         {
             ValueChanged?.Invoke(value);
         }
 
-        public IObservable<Point3f> Process()
+        public IObservable<Point3d> Process()
         {
             return Observable
                 .Defer(() => Observable.Return(value))
-                .Concat(Observable.FromEvent<Point3f>(
+                .Concat(Observable.FromEvent<Point3d>(
                     handler => ValueChanged += handler,
                     handler => ValueChanged -= handler));
         }
 
-        public IObservable<Point3f> Process<TSource>(IObservable<TSource> source)
+        public IObservable<Point3d> Process<TSource>(IObservable<TSource> source)
         {
             return source.Select(x => value);
         }