图片填充线条

Bitmap bitmap = new Bitmap("1.jpg");
            TextureBrush b = new TextureBrush(bitmap);//指定纹理图片
            Pen p = new Pen(b, 30);//创建画笔 
            //用纹理笔刷直接绘制线条
            e.Graphics.DrawEllipse(p, 100, 40, 200, 100);
            p.Dispose();