* path tag writing works now

* added few enum converters

Source/Painting/EnumConverters.cs

@@ -95,5 +95,16 @@ namespace Svg
     //implementaton for clip rule
     public sealed class SvgClipRuleConverter : EnumBaseConverter<SvgClipRule>
     {
-    }	
+    }
+    
+    //implementaton for clip rule
+    public sealed class SvgTextAnchorConverter : EnumBaseConverter<SvgTextAnchor>
+    {
+    }
+    
+    //implementaton for preserve aspect ratio
+    public sealed class SvgPreserverAspectRatioConverter : EnumBaseConverter<SvgPreserveAspectRatio>
+    {
+    }
+    
 }

Source/Painting/SvgPatternServer.cs

@@ -31,6 +31,17 @@ namespace Svg
             get { return this._viewBox; }
             set { this._viewBox = value; }
         }
+        
+        /// <summary>
+        /// Gets or sets the aspect of the viewport.
+        /// </summary>
+        /// <value></value>
+        [SvgAttribute("preserveAspectRatio")]
+        public SvgAspectRatio AspectRatio 
+		{
+			get;
+			set;
+		}
 
         /// <summary>
         /// Gets or sets the width of the pattern.

Source/Paths/SvgArcSegment.cs

@@ -152,6 +152,13 @@ namespace Svg.Pathing
                 startY = (float)endpointY;
             }
         }
+        
+        public override string ToString()
+        {
+        	var arcFlag = this.Size == SvgArcSize.Large ? "1" : "0";
+        	var sweepFlag = this.Sweep == SvgArcSweep.Positive ? "1" : "0";
+        	return "A" + this.RadiusX.ToString() + " " + this.RadiusY.ToString() + " " + this.Angle.ToString() + " " + arcFlag + " " + sweepFlag + " " + this.End.ToSvgString();
+        }
     }
 
     [Flags]

Source/Paths/SvgClosePathSegment.cs

@@ -10,5 +10,11 @@ namespace Svg.Pathing
         {
             graphicsPath.CloseFigure();
         }
+        
+        public override string ToString()
+		{
+			return "z";
+		}
+
     }
 }

Source/Paths/SvgCubicCurveSegment.cs

@@ -37,7 +37,7 @@ namespace Svg.Pathing
 
         public override string ToString()
         {
-            return String.Format("C {0} {1} {2}", this.FirstControlPoint, this.SecondControlPoint, this.End);
+        	return "C" + this.FirstControlPoint.ToSvgString() + " " + this.SecondControlPoint.ToSvgString() + " " + this.End.ToSvgString();
         }
     }
 }

Source/Paths/SvgLineSegment.cs

@@ -17,5 +17,11 @@ namespace Svg.Pathing
         {
             graphicsPath.AddLine(this.Start, this.End);
         }
+        
+        public override string ToString()
+		{
+        	return "L" + this.End.ToSvgString();
+		}
+
     }
 }
\ No newline at end of file

Source/Paths/SvgMoveToSegment.cs

@@ -17,5 +17,11 @@ namespace Svg.Pathing
         {
             graphicsPath.StartFigure();
         }
+        
+        public override string ToString()
+		{
+        	return "M" + this.Start.ToSvgString();
+		}
+
     }
 }

Source/Paths/SvgPathBuilder.cs

@@ -4,11 +4,19 @@ using System.ComponentModel;
 using System.Diagnostics;
 using System.Drawing;
 using System.Globalization;
-
+using System.Linq;
 using Svg.Pathing;
 
 namespace Svg
 {
+	public static class PointFExtensions
+	{
+		public static string ToSvgString(this PointF p)
+		{
+			return p.X.ToString() + " " + p.Y.ToString();
+		}
+	}
+	
     internal class SvgPathBuilder : TypeConverter
     {
         /// <summary>
@@ -256,6 +264,31 @@ namespace Svg
             }
 
             return base.ConvertFrom(context, culture, value);
+        }
+        
+		public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
+		{
+			if (destinationType == typeof(string))
+            {
+                var paths = value as SvgPathSegmentList;
+
+                if (paths != null)
+                {
+                    return string.Join(" ", paths.Select(p => p.ToString()).ToArray());
+                }
+            }
+
+			return base.ConvertTo(context, culture, value, destinationType);
+		}
+        
+		public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
+        {
+            if (destinationType == typeof(string))
+            {
+                return true;
+            }
+
+            return base.CanConvertTo(context, destinationType);
         }
     }
 }
\ No newline at end of file

Source/Paths/SvgQuadraticCurveSegment.cs

@@ -48,5 +48,11 @@ namespace Svg.Pathing
         {
             graphicsPath.AddBezier(this.Start, this.FirstControlPoint, this.SecondControlPoint, this.End);
         }
+        
+        public override string ToString()
+		{
+			return "Q" + this.ControlPoint.ToSvgString() + " " + this.End.ToSvgString();
+		}
+
     }
 }