new DVCurve(args)
    
    A DVisual graph element indicate a quadratic Curve
    Parameters:
    
    
    
        
        | Name | 
        
        Type | 
        
        
        Description | 
    
    
    
    
        
            
                args | 
            
            
            
                
Array.<Object>
            
             | 
            
            
            a array contain arguments below
                Properties
                
    
    
        
        | Name | 
        
        Type | 
        
        Attributes | 
        
        
        Default | 
        
        Description | 
     
    
    
    
        
            
                beginX | 
            
            
            
                
double
            
             | 
            
                
                
                
                
                 | 
            
            
                
                
                 | 
            
            the x value of the start node | 
         
    
        
            
                beginY | 
            
            
            
                
double
            
             | 
            
                
                
                
                
                 | 
            
            
                
                
                 | 
            
            the y value of the start node | 
         
    
        
            
                endX | 
            
            
            
                
double
            
             | 
            
                
                
                
                
                 | 
            
            
                
                
                 | 
            
            the x value of the stop node | 
         
    
        
            
                endY | 
            
            
            
                
double
            
             | 
            
                
                
                
                
                 | 
            
            
                
                
                 | 
            
            the y value of the stop node | 
         
    
        
            
                cpx | 
            
            
            
                
double
            
             | 
            
                
                
                
                
                 | 
            
            
                
                
                 | 
            
            the x value of the control node | 
         
    
        
            
                cpy | 
            
            
            
                
double
            
             | 
            
                
                
                
                
                 | 
            
            
                
                
                 | 
            
            the y value of the control node | 
         
    
        
            
                color | 
            
            
            
                
DVColor
            
             | 
            
                
                
                    <optional> 
                
                
                
                 | 
            
            
                
                
                    new DVColor()
                
                 | 
            
            the color of the dot,black in default | 
         
    
        
            
                lineWidth | 
            
            
            
                
double
            
             | 
            
                
                
                    <optional> 
                
                
                
                 | 
            
            
                
                
                    '1'
                
                 | 
            
            the lineWidth of line | 
         
    
    
 
             | 
        
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    - Source:
 
    
    
    
    
    
    Example
    
    new DVLine({'beginX':100,'beginY':100,'endX':20,'endY':20,'style':'dash'});