diff --git a/OpenMEP/Element/MEPCurve.cs b/OpenMEP/Element/MEPCurve.cs
index 3242d027..03135b07 100644
--- a/OpenMEP/Element/MEPCurve.cs
+++ b/OpenMEP/Element/MEPCurve.cs
@@ -1,14 +1,17 @@
 using System.Collections;
+using System.Runtime.CompilerServices;
 using Autodesk.DesignScript.Runtime;
 using Autodesk.Revit.DB;
 using Autodesk.Revit.DB.Mechanical;
 using Autodesk.Revit.DB.Plumbing;
 using Dynamo.Graph.Nodes;
+using GShark.Geometry;
 using OpenMEP.Helpers;
 using Revit.GeometryConversion;
 using RevitServices.Transactions;
 using Curve = Autodesk.DesignScript.Geometry.Curve;
 using Line = Autodesk.Revit.DB.Line;
+using Point = OpenMEPSandbox.Geometry.Point;
 
 namespace OpenMEP.Element;
 
@@ -42,6 +45,7 @@ private MEPCurve()
                 return mCurve.Document.GetElement(id).ToDynamoType();
             }
         }
+
         TransactionManager.Instance.TransactionTaskDone();
         return null;
     }
@@ -54,12 +58,13 @@ private MEPCurve()
     /// <returns></returns>
     private static ElementId BreakCurve(Autodesk.Revit.DB.MEPCurve? mepCurve, XYZ? ptBreak)
     {
-        if(mepCurve==null) throw new ArgumentNullException(nameof(mepCurve));
-        if(ptBreak==null) throw new ArgumentNullException(nameof(ptBreak));
+        if (mepCurve == null) throw new ArgumentNullException(nameof(mepCurve));
+        if (ptBreak == null) throw new ArgumentNullException(nameof(ptBreak));
         if (mepCurve is Autodesk.Revit.DB.Plumbing.Pipe || mepCurve is Autodesk.Revit.DB.Plumbing.FlexPipe)
         {
             return PlumbingUtils.BreakCurve(mepCurve.Document, mepCurve.Id, ptBreak);
         }
+
         if (mepCurve is Autodesk.Revit.DB.Mechanical.Duct || mepCurve is Autodesk.Revit.DB.Mechanical.FlexDuct)
         {
             return MechanicalUtils.BreakCurve(mepCurve.Document, mepCurve.Id, ptBreak);
@@ -70,6 +75,7 @@ private static ElementId BreakCurve(Autodesk.Revit.DB.MEPCurve? mepCurve, XYZ? p
             ElementId elementId = BreakConduitCableTray(mepCurve.Document, mepCurve.Id, ptBreak);
             return elementId;
         }
+
         return ElementId.InvalidElementId;
     }
 
@@ -223,6 +229,8 @@ private static void AdjustMepCurve(Autodesk.Revit.DB.Element mepCurve, XYZ p1, X
         return newTeeFitting.ToDynamoType();
     }
 
+    
+    
     /// <summary>
     /// Add a new family instance of an transition fitting into the Autodesk Revit document,
     /// using two connectors.
@@ -431,11 +439,11 @@ private static void AdjustMepCurve(Autodesk.Revit.DB.Element mepCurve, XYZ p1, X
     /// </example>
     [MultiReturn("Percent", "Degrees", "Ratio")]
     [NodeCategory("Query")]
-    public static Dictionary<string, object?> Slope(Revit.Elements.Element mepCurve,double digit =0)
+    public static Dictionary<string, object?> Slope(Revit.Elements.Element mepCurve, double digit = 0)
     {
-        if(mepCurve==null) throw new ArgumentNullException(nameof(mepCurve));
+        if (mepCurve == null) throw new ArgumentNullException(nameof(mepCurve));
         Autodesk.Revit.DB.MEPCurve? internalElement = mepCurve.InternalElement as Autodesk.Revit.DB.MEPCurve;
         LocationCurve? locationCurve = internalElement!.Location as LocationCurve;
-       return OpenMEPSandbox.Geometry.Line.Slope(locationCurve?.Curve.ToDynamoType(), digit);
+        return OpenMEPSandbox.Geometry.Line.Slope(locationCurve?.Curve.ToDynamoType(), digit);
     }
 }
\ No newline at end of file
diff --git a/OpenMEPSandbox/Geometry/Point.cs b/OpenMEPSandbox/Geometry/Point.cs
index fdcb53cd..a9ea207c 100644
--- a/OpenMEPSandbox/Geometry/Point.cs
+++ b/OpenMEPSandbox/Geometry/Point.cs
@@ -32,6 +32,27 @@ public static Autodesk.DesignScript.Geometry.Point ProjectOntoPlane(
         return Autodesk.DesignScript.Geometry.Point.ByCoordinates(projectedPoint.X, projectedPoint.Y, projectedPoint.Z);
     }
 
+    /// <summary>
+    /// Project a point onto a line
+    /// </summary>
+    /// <param name="point">Point need to project</param>
+    /// <param name="line">Line to project the point</param>
+    /// <returns name="point">projected point</returns>
+    /// <example>
+    /// ![](../OpenMEPPage/geometry/dyn/pic/Point.ProjectOnToLine.gif)
+    /// </example>
+    public static Autodesk.DesignScript.Geometry.Point ProjectOnToLine(Autodesk.DesignScript.Geometry.Point point,
+        Autodesk.DesignScript.Geometry.Line line)
+    {
+        Autodesk.DesignScript.Geometry.Vector lineDirection = line.Direction.Normalized();
+        Autodesk.DesignScript.Geometry.Point start = line.StartPoint;
+        Autodesk.DesignScript.Geometry.Vector vector = point.AsVector().Subtract(start.AsVector());
+        double projectionLength  = lineDirection.Dot(vector);
+        var ProjectedPoint = start.Add(lineDirection.Scale(projectionLength));
+        return ProjectedPoint;
+    }
+    
+
     /// <summary>
     /// Get the centroid of a list of points
     /// </summary>
@@ -99,9 +120,10 @@ public static bool IsOnPlane(Autodesk.DesignScript.Geometry.Point point, Autodes
     /// ![](../OpenMEPPage/geometry/dyn/pic/Point.Deconstruct.png)
     /// </example>
     [MultiReturn("X", "Y", "Z")]
-    public static Dictionary<string, object?> Deconstruct ([DefaultArgument("Autodesk.DesignScript.Geometry.Point.ByCoordinates(0,0,0)")] Autodesk.DesignScript.Geometry.Point point)
+    public static Dictionary<string, object?> Deconstruct(
+        [DefaultArgument("Autodesk.DesignScript.Geometry.Point.ByCoordinates(0,0,0)")]
+        Autodesk.DesignScript.Geometry.Point point)
     {
-        
         if (point == null) throw new ArgumentNullException(nameof(point));
         return new Dictionary<string, object?>
         {
@@ -240,8 +262,7 @@ public static double Euclidean(Autodesk.DesignScript.Geometry.Point p1, Autodesk
     {
         return Euclidean(p1.X, p2.X, p1.Y, p2.Y, p1.Z, p2.Z);
     }
-    
-    
+
 
     /// <summary>
     /// return distance between two points by Euclidean distance
@@ -311,7 +332,7 @@ internal static double Euclidean(double x1, double x2, double y1, double y2, dou
     /// <returns name="Permutation">Permutation of list index matching optimize</returns>
     /// <returns name="mincost">minimum cost can optimize</returns>
     /// <returns name="assignment">index optimize can assignment</returns>
-    [MultiReturn("assignment","mincost")]
+    [MultiReturn("assignment", "mincost")]
     public static Dictionary<string, object?> AssignmentMatching(List<Autodesk.DesignScript.Geometry.Point> lcMachines,
         List<Autodesk.DesignScript.Geometry.Point> lcDevices)
     {
@@ -324,6 +345,7 @@ internal static double Euclidean(double x1, double x2, double y1, double y2, dou
                 cost[i, j] = manhattan;
             }
         }
+
         // TODO : Array Matching Index 
         int[,]? originCost = cost.Clone() as int[,];
         List<int> assignment = cost.FindAssignments().ToList();
@@ -333,6 +355,7 @@ internal static double Euclidean(double x1, double x2, double y1, double y2, dou
         {
             mincost += originCost[i, assignment[i]];
         }
+
         return new Dictionary<string, object?>()
         {
             {"assignment", assignment},
@@ -347,8 +370,8 @@ internal static double Euclidean(double x1, double x2, double y1, double y2, dou
     /// <param name="lcDevices">list location of devices</param>
     /// <returns name="mincost">minimum cost can optimize</returns>
     /// <returns name="assignment">index optimize can assignment</returns>
-    [MultiReturn("assignment","mincost")]
-    public static Dictionary<string,object?> BruteForceMatching(List<Autodesk.DesignScript.Geometry.Point> lcMachines,
+    [MultiReturn("assignment", "mincost")]
+    public static Dictionary<string, object?> BruteForceMatching(List<Autodesk.DesignScript.Geometry.Point> lcMachines,
         List<Autodesk.DesignScript.Geometry.Point> lcDevices)
     {
         int[,] cost = new int[lcMachines.Count, lcDevices.Count];
@@ -360,6 +383,7 @@ internal static double Euclidean(double x1, double x2, double y1, double y2, dou
                 cost[i, j] = manhattan;
             }
         }
+
         BruteForceMethod bruteForceMethod = new BruteForceMethod();
         (int minCost, IEnumerable<int> minAssignment) result = bruteForceMethod.BruteForce(cost);
         IEnumerable<int> assignment = result.minAssignment;
diff --git a/docs/OpenMEPPage/geometry/dyn/Point.ProjectOnToLine.dyn b/docs/OpenMEPPage/geometry/dyn/Point.ProjectOnToLine.dyn
new file mode 100644
index 00000000..6bb037d9
--- /dev/null
+++ b/docs/OpenMEPPage/geometry/dyn/Point.ProjectOnToLine.dyn
@@ -0,0 +1,518 @@
+{
+  "Uuid": "8f745431-3ef7-4418-a1f5-b6cbe51a1c92",
+  "IsCustomNode": false,
+  "Description": "",
+  "Name": "Point.ProjectOnToLine",
+  "ElementResolver": {
+    "ResolutionMap": {}
+  },
+  "Inputs": [],
+  "Outputs": [],
+  "Nodes": [
+    {
+      "ConcreteType": "Dynamo.Graph.Nodes.ZeroTouch.DSFunction, DynamoCore",
+      "Id": "eb5725ab2eb2488195ce198e20261476",
+      "NodeType": "FunctionNode",
+      "Inputs": [
+        {
+          "Id": "1ea48a8268ea421888ce65a803356cd7",
+          "Name": "startPoint",
+          "Description": "Line start point\n\nPoint",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        },
+        {
+          "Id": "f21128dcf6e646baa4556774bb28b801",
+          "Name": "endPoint",
+          "Description": "Line end point\n\nPoint",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "Outputs": [
+        {
+          "Id": "ffc54d429e5c4aa2aab969f0c96655e1",
+          "Name": "Line",
+          "Description": "Line from start and end point",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "FunctionSignature": "Autodesk.DesignScript.Geometry.Line.ByStartPointEndPoint@Autodesk.DesignScript.Geometry.Point,Autodesk.DesignScript.Geometry.Point",
+      "Replication": "Auto",
+      "Description": "Creates a straight Line between two input Points.\n\nLine.ByStartPointEndPoint (startPoint: Point, endPoint: Point): Line"
+    },
+    {
+      "ConcreteType": "Dynamo.Graph.Nodes.ZeroTouch.DSFunction, DynamoCore",
+      "Id": "0a3c49ee27794c68880218e75fce302d",
+      "NodeType": "FunctionNode",
+      "Inputs": [
+        {
+          "Id": "0f84c24a032b42128794437f7f198385",
+          "Name": "x",
+          "Description": "X coordinate\n\ndouble\nDefault value : 0",
+          "UsingDefaultValue": true,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        },
+        {
+          "Id": "645fbba37ba8482d9c92b9a90ae216ac",
+          "Name": "y",
+          "Description": "Y coordinate\n\ndouble\nDefault value : 0",
+          "UsingDefaultValue": true,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        },
+        {
+          "Id": "490f255b4f854056882e0794478ded2c",
+          "Name": "z",
+          "Description": "Z coordinate\n\ndouble\nDefault value : 0",
+          "UsingDefaultValue": true,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "Outputs": [
+        {
+          "Id": "3afe8e3d3b2948a683faf75cda858da9",
+          "Name": "Point",
+          "Description": "Point created by coordinates",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "FunctionSignature": "Autodesk.DesignScript.Geometry.Point.ByCoordinates@double,double,double",
+      "Replication": "Auto",
+      "Description": "Form a Point given 3 cartesian coordinates\n\nPoint.ByCoordinates (x: double = 0, y: double = 0, z: double = 0): Point"
+    },
+    {
+      "ConcreteType": "Dynamo.Graph.Nodes.ZeroTouch.DSFunction, DynamoCore",
+      "Id": "67c098d4111040068be87cb9fa66edf1",
+      "NodeType": "FunctionNode",
+      "Inputs": [
+        {
+          "Id": "82a52f630569487bafd16dd8157b781e",
+          "Name": "x",
+          "Description": "X coordinate\n\ndouble\nDefault value : 0",
+          "UsingDefaultValue": true,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        },
+        {
+          "Id": "42e38bb41c7c4befa4182f2a5d008b7b",
+          "Name": "y",
+          "Description": "Y coordinate\n\ndouble\nDefault value : 0",
+          "UsingDefaultValue": true,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        },
+        {
+          "Id": "7fd472d3f3964baf8032adebe2b43e22",
+          "Name": "z",
+          "Description": "Z coordinate\n\ndouble\nDefault value : 0",
+          "UsingDefaultValue": true,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "Outputs": [
+        {
+          "Id": "d5edbf7bc0884990a928f4a4a6311428",
+          "Name": "Point",
+          "Description": "Point created by coordinates",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "FunctionSignature": "Autodesk.DesignScript.Geometry.Point.ByCoordinates@double,double,double",
+      "Replication": "Auto",
+      "Description": "Form a Point given 3 cartesian coordinates\n\nPoint.ByCoordinates (x: double = 0, y: double = 0, z: double = 0): Point"
+    },
+    {
+      "ConcreteType": "Dynamo.Graph.Nodes.CodeBlockNodeModel, DynamoCore",
+      "Id": "9e01a72200cb42fd8cfdc35ee60ff983",
+      "NodeType": "CodeBlockNode",
+      "Inputs": [],
+      "Outputs": [
+        {
+          "Id": "f48db55006be400d9ffd0416ee054b10",
+          "Name": "",
+          "Description": "Value of expression at line 1",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "Replication": "Disabled",
+      "Description": "Allows for DesignScript code to be authored directly",
+      "Code": "10;"
+    },
+    {
+      "ConcreteType": "Dynamo.Graph.Nodes.ZeroTouch.DSFunction, DynamoCore",
+      "Id": "66c108e2a9d549059016937d4290fb39",
+      "NodeType": "FunctionNode",
+      "Inputs": [
+        {
+          "Id": "4a05fb30f5d24f14bf79d40124fba2fb",
+          "Name": "x",
+          "Description": "X coordinate\n\ndouble\nDefault value : 0",
+          "UsingDefaultValue": true,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        },
+        {
+          "Id": "cfd2b7d3435840668d40681765e48097",
+          "Name": "y",
+          "Description": "Y coordinate\n\ndouble\nDefault value : 0",
+          "UsingDefaultValue": true,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        },
+        {
+          "Id": "f3d0626b5acf4cfe9143fa18b3351b89",
+          "Name": "z",
+          "Description": "Z coordinate\n\ndouble\nDefault value : 0",
+          "UsingDefaultValue": true,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "Outputs": [
+        {
+          "Id": "92151f60fedc4c02a20a82f241a4fd7d",
+          "Name": "Point",
+          "Description": "Point created by coordinates",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "FunctionSignature": "Autodesk.DesignScript.Geometry.Point.ByCoordinates@double,double,double",
+      "Replication": "Auto",
+      "Description": "Form a Point given 3 cartesian coordinates\n\nPoint.ByCoordinates (x: double = 0, y: double = 0, z: double = 0): Point"
+    },
+    {
+      "ConcreteType": "Dynamo.Graph.Nodes.ZeroTouch.DSFunction, DynamoCore",
+      "Id": "3723cd5b16dc490195ad480c15793e66",
+      "NodeType": "FunctionNode",
+      "Inputs": [
+        {
+          "Id": "d09528e3870c42eea05d5de7f2f76208",
+          "Name": "point",
+          "Description": "Point need to project\n\nPoint",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        },
+        {
+          "Id": "f60344b14b0e46bf935a7804b5e964df",
+          "Name": "line",
+          "Description": "Line to project the point\n\nLine",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "Outputs": [
+        {
+          "Id": "563579f75d3f496297c47f5152dc7f99",
+          "Name": "point",
+          "Description": "projected point",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "FunctionSignature": "OpenMEPSandbox.Geometry.Point.ProjectOnToLine@Autodesk.DesignScript.Geometry.Point,Autodesk.DesignScript.Geometry.Line",
+      "Replication": "Auto",
+      "Description": "Project a point onto a line\n\nPoint.ProjectOnToLine (point: Point, line: Line): Point"
+    },
+    {
+      "ConcreteType": "CoreNodeModels.Input.IntegerSlider, CoreNodeModels",
+      "NumberType": "Integer",
+      "MaximumValue": 30,
+      "MinimumValue": 1,
+      "StepValue": 1,
+      "Id": "25b30907f6384ece8a919239f82cadbc",
+      "NodeType": "NumberInputNode",
+      "Inputs": [],
+      "Outputs": [
+        {
+          "Id": "03aaf5eef036422f840f824e16a03ba3",
+          "Name": "",
+          "Description": "Int64",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "Replication": "Disabled",
+      "Description": "Produces integer values",
+      "InputValue": 24
+    },
+    {
+      "ConcreteType": "Dynamo.Graph.Nodes.ZeroTouch.DSFunction, DynamoCore",
+      "Id": "da6e4d16ea8d4944beb81aebc212449a",
+      "NodeType": "FunctionNode",
+      "Inputs": [
+        {
+          "Id": "1c8a72b7b160453fa2218b1641d9661b",
+          "Name": "startPoint",
+          "Description": "Line start point\n\nPoint",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        },
+        {
+          "Id": "7c629a68cf83479dbf0799c066fe46f9",
+          "Name": "endPoint",
+          "Description": "Line end point\n\nPoint",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "Outputs": [
+        {
+          "Id": "944a268822724ebc993dbfdc38e8d368",
+          "Name": "Line",
+          "Description": "Line from start and end point",
+          "UsingDefaultValue": false,
+          "Level": 2,
+          "UseLevels": false,
+          "KeepListStructure": false
+        }
+      ],
+      "FunctionSignature": "Autodesk.DesignScript.Geometry.Line.ByStartPointEndPoint@Autodesk.DesignScript.Geometry.Point,Autodesk.DesignScript.Geometry.Point",
+      "Replication": "Auto",
+      "Description": "Creates a straight Line between two input Points.\n\nLine.ByStartPointEndPoint (startPoint: Point, endPoint: Point): Line"
+    }
+  ],
+  "Connectors": [
+    {
+      "Start": "ffc54d429e5c4aa2aab969f0c96655e1",
+      "End": "f60344b14b0e46bf935a7804b5e964df",
+      "Id": "f8f7934d0da946a6bdd6d6aa5c287ebb",
+      "IsHidden": "False"
+    },
+    {
+      "Start": "3afe8e3d3b2948a683faf75cda858da9",
+      "End": "1ea48a8268ea421888ce65a803356cd7",
+      "Id": "4e79539c97ff461f9f06ae42104445e2",
+      "IsHidden": "False"
+    },
+    {
+      "Start": "d5edbf7bc0884990a928f4a4a6311428",
+      "End": "f21128dcf6e646baa4556774bb28b801",
+      "Id": "d88cce784e144333bba83f5ba3ef2803",
+      "IsHidden": "False"
+    },
+    {
+      "Start": "f48db55006be400d9ffd0416ee054b10",
+      "End": "82a52f630569487bafd16dd8157b781e",
+      "Id": "517e524c1d174c039b407431275cd9c7",
+      "IsHidden": "False"
+    },
+    {
+      "Start": "f48db55006be400d9ffd0416ee054b10",
+      "End": "7fd472d3f3964baf8032adebe2b43e22",
+      "Id": "7868abfa636a443d859e1d883205c5e7",
+      "IsHidden": "False"
+    },
+    {
+      "Start": "92151f60fedc4c02a20a82f241a4fd7d",
+      "End": "d09528e3870c42eea05d5de7f2f76208",
+      "Id": "1835c25ab3624b449a288b2566417d4f",
+      "IsHidden": "False"
+    },
+    {
+      "Start": "92151f60fedc4c02a20a82f241a4fd7d",
+      "End": "1c8a72b7b160453fa2218b1641d9661b",
+      "Id": "0ea0c341db2b4e26a2931993f7feaf4f",
+      "IsHidden": "False"
+    },
+    {
+      "Start": "563579f75d3f496297c47f5152dc7f99",
+      "End": "7c629a68cf83479dbf0799c066fe46f9",
+      "Id": "679904bacda24551b064db47963e86a8",
+      "IsHidden": "False"
+    },
+    {
+      "Start": "03aaf5eef036422f840f824e16a03ba3",
+      "End": "cfd2b7d3435840668d40681765e48097",
+      "Id": "efaa0b0102e641969f181263d66d01be",
+      "IsHidden": "False"
+    },
+    {
+      "Start": "03aaf5eef036422f840f824e16a03ba3",
+      "End": "4a05fb30f5d24f14bf79d40124fba2fb",
+      "Id": "993ae9826f31441299d5ec52ddcee68c",
+      "IsHidden": "False"
+    }
+  ],
+  "Dependencies": [],
+  "NodeLibraryDependencies": [
+    {
+      "Name": "OpenMEP",
+      "Version": "1.0.0",
+      "ReferenceType": "Package",
+      "Nodes": [
+        "3723cd5b16dc490195ad480c15793e66"
+      ]
+    }
+  ],
+  "Thumbnail": "",
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