繪圖點

Question

Visual Studio中說，有一個發生OverflowException未處理

//draws the point. 
public void Draw(Graphics g) 
{ 
    float radius = 3; //radius of the circle which describes the point. 

    // draws the circle of the point, with parameters of the square which bounds the circle. 
    g.DrawEllipse(new Pen(Color.Black, 6F), float.Parse((this.X - radius).ToString()), float.Parse((this.Y - radius).ToString()), 2 * radius, 2 * radius); 
} 

Answer 1

你與圖形界限以外的點值結束了。檢查你的this.X和這個.Y值。請參閱What are the hard bounds for drawing coordinates in GDI+?