update SixLabors.Shapes version

fixes missing scan lane while clipping internal corner.

src/ImageSharp.Drawing.Paths/project.json

@@ -44,7 +44,7 @@
     "ImageSharp.Drawing": {
       "target": "project"
     },
-    "SixLabors.Shapes": "0.1.0-alpha0003",
+    "SixLabors.Shapes": "0.1.0-alpha0004",
     "StyleCop.Analyzers": {
       "version": "1.0.0",
       "type": "build"

src/ImageSharp.Drawing/Processors/FillRegionProcessor.cs

@@ -98,20 +98,7 @@ namespace ImageSharp.Drawing.Processors
                         int pointsFound = this.Region.ScanY(y, buffer, maxIntersections, 0);
                         if (pointsFound == 0)
                         {
-                            // nothign on this line skip
-                            return;
-                        }
-
-                        if (pointsFound == 1 && maxIntersections > 1)
-                        {
-                            // we must have clipped a corner lets just duplicate it into point 2 and continue :)
-                            buffer[1] = buffer[0];
-                            pointsFound++;
-                        }
-
-                        if (pointsFound % 2 == 1)
-                        {
-                            // we seem to have just clipped a corner lets just skip it
+                            // nothing on this line skip
                             return;
                         }
 
@@ -253,19 +240,6 @@ namespace ImageSharp.Drawing.Processors
                                 return;
                             }
 
-                            if (pointsFound == 1 && maxIntersections > 1)
-                            {
-                                // we must have clipped a corner lets just duplicate it into point 2 and continue :)
-                                buffer[1] = buffer[0];
-                                pointsFound++;
-                            }
-
-                            if (pointsFound % 2 == 1)
-                            {
-                                // we seem to have just clipped a corner lets just skip it
-                                return;
-                            }
-
                             QuickSort(buffer, pointsFound);
 
                             int currentIntersection = 0;

tests/ImageSharp.Tests/Drawing/SolidComplexPolygonTests.cs

@@ -28,14 +28,15 @@ namespace ImageSharp.Tests.Drawing
                             new Vector2(37, 85),
                             new Vector2(93, 85),
                             new Vector2(65, 137)));
-
+            var clipped = simplePath.Clip(hole1);
+           // var clipped = new Rectangle(10, 10, 100, 100).Clip(new Rectangle(20, 0, 20, 20));
             using (Image image = new Image(500, 500))
             {
                 using (FileStream output = File.OpenWrite($"{path}/Simple.png"))
                 {
                     image
                         .BackgroundColor(Color.Blue)
-                        .Fill(Color.HotPink, simplePath.Clip(hole1))
+                        .Fill(Color.HotPink, clipped)
                         .Save(output);
                 }
 
@@ -45,6 +46,8 @@ namespace ImageSharp.Tests.Drawing
 
                     Assert.Equal(Color.HotPink, sourcePixels[200, 150]);
 
+                    Assert.Equal(Color.HotPink, sourcePixels[70, 137]);
+
                     Assert.Equal(Color.HotPink, sourcePixels[50, 50]);
 
                     Assert.Equal(Color.HotPink, sourcePixels[35, 100]);