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[英]How do I draw a graduated border on a polygon using GDI+ via C#/WinForms?
[英]How do I draw polygon?( in C# WPF project)
點擊我想從圖像上的多邊形區域制作的點。
myPolygon = new Polygon();
myPolygon.Stroke = Brushes.Black;
myPolygon.Fill = Brushes.LightYellow;
myPolygon.StrokeThickness = 2;
myPolygon.HorizontalAlignment = HorizontalAlignment.Left;
myPolygon.VerticalAlignment = VerticalAlignment.Center;
myPolygon.PreviewMouseLeftButtonDown += new MouseButtonEventHandler(Polygon_MouseDown);
myPolygon.PreviewMouseLeftButtonUp += new MouseButtonEventHandler(Polygon_MouseUp);
private void Polygon_MouseDown(object sender, MouseButtonEventArgs e)
{
Point p = e.GetPosition(image);
myPolygon.Points = new PointCollection() { new Point(p.X,p.Y) };
RootCanvas.Children.Add(myPolygon);
} //MouseClick Event BUT, did not click behavior.. I want draw a line along the points.
我能怎么做...?
我們可以使用WPF畫布繪制Polygon,WPF畫布是子對象的集合。
Polygon p = new Polygon();
p.Stroke = Brushes.Black;
p.Fill = Brushes.LightBlue;
p.StrokeThickness = 1;
p.HorizontalAlignment = HorizontalAlignment.Left;
p.VerticalAlignment = VerticalAlignment.Center;
p.Points = new PointCollection() { new Point(10, 10), new Point(100, 100), new Point(200, 200) };
freeCanvas.Children.Add(p);
欲獲得更多信息,。 請參考以下網址
http://www.codeproject.com/Articles/128705/WPF-rounded-corners-polygon
http://classicalprogrammer.wikidot.com/draw-dynamic-polygons-in-wpf
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