/// <summary>
/// 获取顶点坐标
/// </summary>
/// <param name="pos">顶点序数</param>
/// <param name="p">目标顶点</param>
/// <returns></returns>
public bool GetPoint(int pos, ref HPOINT p)
{
if (pos >= iPointCount)
{
return(false);
}
p = pPointData[pos];
return(true);
}
/// <summary>
/// 设置多边形的大小（改变顶点个数）
/// 如果新设置的顶点个数小于原来的顶点个数，则只保留前面的顶点个数
/// 反之扩充，原有顶点数据不变
/// </summary>
/// <param name="n"></param>
/// <returns></returns>
public bool SetSize(int n)
{
if (n < 3)
{
return(false);
}
HPOINT[] pTemp = new HPOINT[n];
int min = (iPointCount < n) ? iPointCount : n;
Array.Copy(pPointData, pTemp, min);
pPointData = pTemp;
iPointCount = n;
return(true);
}
