Noticed some strange behaviour that seems to defy the point of C# GraphicsPath.AddLines. AddLines is a series of Connected line segments. The following code seems to make this not true:
Bitmap BuildingBitmap = new Bitmap(MaxX - MinX, MaxY - MinY);
Graphics BuildingGraphics = Graphics.FromImage(BuildingBitmap);
BuildingGraphics.Clear(Color.Transparent);
GraphicsPath BuildingShape = new GraphicsPath();
BuildingShape.StartFigure();
BuildingShape.AddLines(BuildingPointsArray);
BuildingShape.CloseFigure();
BuildingGraphics.DrawPath(new Pen(Color.Black, 1.5f), BuildingShape);
BuildingPointsArray is a Array of the following Points
7 0 58 6 55 45 62 45 60 59 67 60 66 82 47 80 46 96 0 92 7 0
Graphing this with Excel scatter plot shows the building shape is correct and no gaps with excel draw line function. Looks like i dont have reputation so I cant post pictures: Heres imgur links: Excel Graph https://i.sstatic.net/aKQ7S.png
However with my png output we can see there are two gaps:
AddLines png https://i.sstatic.net/18Z91.png
Any Thoughts on why this could be? I've tried increasing line thickness as thinking it could be a render issue. No luck.
The lines certainly are connected but it seems that they don't quite fit onto your Bitmap
.
Make that:
Bitmap BuildingBitmap = new Bitmap(MaxX - MinX + 1 , MaxY - MinY + 1);