Added UIGridRenderer thanks to John Hattan

Fixed "line Endings" errors

Scripts/Primitives/UIGridRenderer.cs

@@ -0,0 +1,142 @@
+/// Credit John Hattan (http://thecodezone.com/)
+/// Sourced from - https://bitbucket.org/UnityUIExtensions/unity-ui-extensions/issues/117/uigridrenderer
+
+using System.Collections.Generic;
+
+namespace UnityEngine.UI.Extensions
+{
+	[AddComponentMenu("UI/Extensions/Primitives/UIGridRenderer")]
+	public class UIGridRenderer : UILineRenderer
+	{
+		[SerializeField]
+		private int m_gridWidth = 10;
+		[SerializeField]
+		private int m_gridHeight = 10;
+
+		/// <summary>
+		/// Width of the grid in Cells.
+		/// </summary>
+        public int GridWidth
+		{
+			get
+			{
+				return m_gridWidth;
+			}
+
+			set
+			{
+				if (m_gridWidth == value)
+					return;
+				m_gridWidth = value;
+				SetAllDirty();
+			}
+		}
+
+		/// <summary>
+		/// Height of the Grid in cells.
+		/// </summary>
+        public int GridHeight
+		{
+			get
+			{
+				return m_gridHeight;
+			}
+
+			set
+			{
+				if (m_gridHeight == value)
+					return;
+				m_gridHeight = value;
+				SetAllDirty();
+			}
+		}
+
+		protected override void OnPopulateMesh(VertexHelper vh)
+		{
+			relativeSize = true;
+
+			int ArraySize = (GridHeight * 3) + 1;
+			if(GridHeight % 2 == 0)
+				++ArraySize; // needs one more line
+
+			ArraySize += (GridWidth * 3) + 1;
+
+			m_points = new Vector2[ArraySize];
+
+			int Index = 0;
+			for(int i = 0; i < GridHeight; ++i)
+			{
+				float xFrom = 1;
+				float xTo = 0;
+				if(i % 2 == 0)
+				{
+					// reach left instead
+					xFrom = 0;
+					xTo = 1;
+				}
+
+				float y = ((float)i) / GridHeight;
+				m_points[Index].x = xFrom;
+				m_points[Index].y = y;
+				++Index;
+				m_points[Index].x = xTo;
+				m_points[Index].y = y;
+				++Index;
+				m_points[Index].x = xTo;
+				m_points[Index].y = (float)(i + 1) / GridHeight;
+				++Index;
+			}
+
+			if(GridHeight % 2 == 0)
+			{
+				// two lines to get to 0, 1
+				m_points[Index].x = 1;
+				m_points[Index].y = 1;
+				++Index;
+			}
+
+			m_points[Index].x = 0;
+			m_points[Index].y = 1;
+			++Index;
+
+			// line is now at 0,1, so we can draw the columns
+			for(int i = 0; i < GridWidth; ++i)
+			{
+				float yFrom = 1;
+				float yTo = 0;
+				if(i % 2 == 0)
+				{
+					// reach up instead
+					yFrom = 0;
+					yTo = 1;
+				}
+
+				float x = ((float)i) / GridWidth;
+				m_points[Index].x = x;
+				m_points[Index].y = yFrom;
+				++Index;
+				m_points[Index].x = x;
+				m_points[Index].y = yTo;
+				++Index;
+				m_points[Index].x = (float)(i + 1) / GridWidth;
+				m_points[Index].y = yTo;
+				++Index;
+			}
+
+			if(GridWidth % 2 == 0)
+			{
+				// one more line to get to 1, 1
+				m_points[Index].x = 1;
+				m_points[Index].y = 1;
+			}
+			else
+			{
+				// one more line to get to 1, 0
+				m_points[Index].x = 1;
+				m_points[Index].y = 0;
+			}
+
+			base.OnPopulateMesh(vh);
+		}
+	}
+}

Scripts/Primitives/UIGridRenderer.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 35ff6e8800018654d9558db07c4cd080
+timeCreated: 1487335372
+licenseType: Free
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Scripts/Primitives/UILineRenderer.cs

@@ -21,6 +21,7 @@ namespace UnityEngine.UI.Extensions
 			Bevel,
             Miter
 		}
+
 		public enum BezierType
 		{
 			None,
@@ -50,8 +51,7 @@ namespace UnityEngine.UI.Extensions
 		[SerializeField]
 		private Rect m_UVRect = new Rect(0f, 0f, 1f, 1f);
 		[SerializeField]
-        private Vector2[] m_points;
-
+		protected Vector2[] m_points;
 
 		public float LineThickness = 2;
 		public bool UseMargins;
@@ -74,6 +74,7 @@ namespace UnityEngine.UI.Extensions
 			{
 				return m_UVRect;
 			}
+
 			set
 			{
 				if (m_UVRect == value)
@@ -92,6 +93,7 @@ namespace UnityEngine.UI.Extensions
 			{
 				return m_points;
 			}
+
 			set
 			{
 				if (m_points == value)
@@ -126,6 +128,7 @@ namespace UnityEngine.UI.Extensions
                         drawingPoints = bezierPath.GetDrawingPoints2();
 					break;
 				}
+
 				pointsToDraw = drawingPoints.ToArray();
 			}
 
@@ -252,6 +255,7 @@ namespace UnityEngine.UI.Extensions
 						vh.AddUIVertexQuad(join);
 					}
 				}
+
 				vh.AddUIVertexQuad(segments[i]);
 			}
 		}
@@ -288,6 +292,5 @@ namespace UnityEngine.UI.Extensions
 			var v4 = end - offset;
 			return SetVbo(new[] { v1, v2, v3, v4 }, uvs);
 		}
-
 	}
 }