如何畫玫瑰花？

Question

我期待着做一個花環使用C＃圖形... 這裏是我想要實現： Rosette

直到現在我這樣做：

Pen lapsi = new Pen(Color.Black, 3); 

     Rectangle katrori = new Rectangle(250, 200, 200, 200); 
     Rectangle katrori2 = new Rectangle(350, 200, 200, 200); 
     Rectangle katrori3 = new Rectangle(150, 200, 200, 200); 

     Rectangle katrori4 = new Rectangle(200, 110, 200, 200); 
     Rectangle katrori5 = new Rectangle(200, 285, 200, 200); 
     Rectangle katrori6 = new Rectangle(295, 110, 200, 200); 
     Rectangle katrori7 = new Rectangle(300, 282, 200, 200); 

     Graphics g = this.CreateGraphics(); 

     g.DrawEllipse(lapsi, katrori); //kryesor 
     g.DrawEllipse(lapsi, katrori2); //djatht 
     g.DrawEllipse(lapsi, katrori3); //majt 
     g.DrawEllipse(lapsi, katrori4); //nalt-majt 
     g.DrawEllipse(lapsi, katrori5); //posht-majt 
     g.DrawEllipse(lapsi, katrori6); //nalt-djatht 
     g.DrawEllipse(lapsi, katrori7);//posht djatht 

我畫7到目前爲止，但我只想顯示在中間包含羅斯特的一個。如何擺脫主圈外的那些額外的線.. 如果有人可以給我一些代碼行，並告訴我這是如何完成的，我會很感激。

Answer 1

從您的中心圓的矩形開始，並按某個百分比膨脹（）。接下來，創建一個GraphicsPath（）並通過AddEllipse（）使用膨脹的矩形添加一個橢圓。最後，使用SetClip（）來裁剪圖形表面。這將防止正在顯示橢圓形以外的任何東西：

 Pen lapsi = new Pen(Color.Black, 3); 

     Rectangle katrori = new Rectangle(250, 200, 200, 200); 
     Rectangle katrori2 = new Rectangle(350, 200, 200, 200); 
     Rectangle katrori3 = new Rectangle(150, 200, 200, 200); 

     Rectangle katrori4 = new Rectangle(200, 110, 200, 200); 
     Rectangle katrori5 = new Rectangle(200, 285, 200, 200); 
     Rectangle katrori6 = new Rectangle(295, 110, 200, 200); 
     Rectangle katrori7 = new Rectangle(300, 282, 200, 200); 

     Graphics g = this.CreateGraphics(); 

     Rectangle clippingRectangle = new Rectangle(katrori.Location, katrori.Size); 
     clippingRectangle.Inflate((int)(katrori.Width * .2), (int)(katrori.Width * .2)); 
     System.Drawing.Drawing2D.GraphicsPath GP = new System.Drawing.Drawing2D.GraphicsPath(); 
     GP.AddEllipse(clippingRectangle); 
     g.SetClip(GP); 

     g.DrawEllipse(lapsi, katrori); //kryesor 
     g.DrawEllipse(lapsi, katrori2); //djatht 
     g.DrawEllipse(lapsi, katrori3); //majt 
     g.DrawEllipse(lapsi, katrori4); //nalt-majt 
     g.DrawEllipse(lapsi, katrori5); //posht-majt 
     g.DrawEllipse(lapsi, katrori6); //nalt-djatht 
     g.DrawEllipse(lapsi, katrori7);//posht djatht 

     g.Dispose(); 

這裏是我完成的，修剪玫瑰花：