Question

I’m using the Line class to draw on a canvas in WPF and even though I set StrokeThickness = 1, the line shows up 2 pixels wide – it’s almost as if the minimum thickness is two. How do I draw a line that is truly 1 pixel thick?

Line myLine = new Line();

myLine.Stroke = System.Windows.Media.Brushes.Black;

myLine.X1 = 100;
myLine.X2 = 140;  // 150 too far
myLine.Y1 = 200;
myLine.Y2 = 200;

myLine.StrokeThickness = 1;

graphSurface.Children.Add(myLine);

Answer 1

Two things:

myLine.SnapsToDevicePixels = true;
myLine.SetValue(RenderOptions.EdgeModeProperty, EdgeMode.Aliased);