/// <summary>
/// 构造函数
/// </summary>
/// <param name="pCenter">圆心坐标</param>
/// <param name="R">半径</param>
public Circle(Point pCenter, int R)
{
param = new tagParam();
param.center = pCenter;
param.radius = R;
cur.X = 0;
cur.Y = R;
decision_Pk = 5.0 / 4.0 - R;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="pCenter">圆心坐标</param>
/// <param name="R">半径</param>
public CG_Circle(Point pCenter, int R, Color c)
{
points = null;
param = new tagParam();
param.center = pCenter;
param.radius = R;
param.color = c;
cur.X = 0;
cur.Y = R;
decision_Pk = 5.0 / 4.0 - R;
}
/// <summary>
/// 构造函数，传入的参数为起始点横纵坐标、终点横纵坐标，并求出曲线对应在坐标系区域1的对称点
/// </summary>
/// <param name="pStart">起点坐标</param>
/// <param name="pEnd">终点坐标</param>
public Line(Point pStart, Point pEnd)
{
param = new tagParam();
param.start = pStart;
param.end = pEnd;
//方便起见，默认起点在终点的下方
if (param.start.X > param.end.X)
{
swap(ref param.start, ref param.end);
}
if (param.start.Y > param.end.Y)
{
swap(ref param.start, ref param.end);
}
this.initialize();
}
/// <summary>
/// 构造函数，传入的参数为起始点横纵坐标、终点横纵坐标，并求出曲线对应在坐标系区域1的对称点
/// </summary>
/// <param name="pStart">起点坐标</param>
/// <param name="pEnd">终点坐标</param>
public CG_Line(Point pStart, Point pEnd, Color c)
{
points = null;
param = new tagParam();
param.start = pStart;
param.end = pEnd;
param.color = c;
//方便起见，默认起点在终点的下方
if (param.start.X > param.end.X)
{
swap(ref param.start, ref param.end);
}
if (param.start.Y > param.end.Y)
{
swap(ref param.start, ref param.end);
}
originalParam = param;
this.initialize();
}
