Forward normal cloud generator.docx
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2021-02-23
18:14:30
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首先定义全局变量：
int m_n;//云滴的个数
double m_En;//熵
double m_Ex;//期望
double m_He;//超熵
BOOL m_bShow;//云显示控制
double** m_drop;//云滴数组
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//一维正向正态云发生器
//输入云参数，输出云滴
//Ex 云的期望
//En 云的熵
//He 云的超熵
//n 待生成的云滴的个数
//drop[][2]:云滴全局向量
void CCloudView::cloud(double Ex,double En,double He,int n)
{
m_drop = new double * [m_n];
for(int k = 0;k < m_n;k++)
{
m_drop [k] =new double[2];
}
double Enn,x,y;
//设置一个随机开始点
srand((unsigned)3me(NULL));
for(int i = 0;i < n;i ++)
{
Enn = (sqrt(-2*log(rand()*1.0/RAND_MAX))*cos(2*Pi*rand()*1.0/RAND_MAX))*He+En;
x = (sqrt(-2*log(rand()*1.0/RAND_MAX))*cos(2*Pi*rand()*1.0/RAND_MAX))*Enn+Ex;
y = exp(-(x-Ex)*(x-Ex)/(2*Enn*Enn));
m_drop[i][0] = x;
m_drop[i][1] = y;
}
// return drop;
}
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void CCloudView::DrawCloud(double ** drop,CDC *pDC)
{
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