Silverlight 引路蜂二维图形库示例:材质画刷

概述除了单色，渐变画刷外，也可以使用图像作为模式（Pattern）画刷来填充图形。 下面的例子使用两个PNG图像来填充图形。 private void Patterns(){ TextureBrush brush1; TextureBrush brush2; TextureBrush brush3; AffineTransform matrix1 = new Af

除了单色，渐变画刷外，也可以使用图像作为模式（Pattern）画刷来填充图形。

下面的例子使用两个PNG图像来填充图形。

private voID Patterns(){    TextureBrush brush1;    TextureBrush brush2;    TextureBrush brush3;     Affinetransform matrix1 = new Affinetransform();    Affinetransform matrix2 = new Affinetransform();     BitmAPImage img = new BitmAPImage();    img.CreateOptions = BitmapCreateOptions.None;    string path = "/SilverlightGraphics2DDemo;component/brick.png";    Stream s = Application.GetResourceStream        (new Uri(path,UriKind.relative)).Stream;    img.SetSource(s);    WriteableBitmap writeableBitmap = new WriteableBitmap(img);    brush1 = new TextureBrush(writeableBitmap.Pixels,img.PixelWIDth,img.PixelHeight);    path = "/SilverlightGraphics2DDemo;component/bird.png";    s = Application.GetResourceStream(new Uri(path,UriKind.relative)).Stream;    img.SetSource(s);    writeableBitmap = new WriteableBitmap(img);    brush2 = new TextureBrush(writeableBitmap.Pixels,img.PixelHeight);    brush3 = new TextureBrush(writeableBitmap.Pixels,img.PixelHeight,127);    matrix2.Translate(50,50);    graphics2D.Clear(color.White);    graphics2D.Affinetransform = (matrix1);    graphics2D.FillRectangle(brush1,new Rectangle(20,50,100,100));    graphics2D.Filloval(brush2,10,80,80);    graphics2D.Affinetransform = (matrix2);    graphics2D.Filloval(brush3,80); }

这个例子所用的brick.png 和bird.png,brush3是半透明画刷。

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