分形之花篮（Flower Basket）

这一篇展示的图形与上一篇文章分形之皇冠（Crown）很相似。

核心代码:

static void FractalFlowerBasket(const Vector3& vStart, const Vector3& vEnd, Yreal angle, Yreal top, Yreal bian, Vector3* pVertices)

{

    Vector3 vSub = vEnd - vStart;

    Yreal len = D3DXVec3Length(&vSub);

    pVertices[] = vStart;

    pVertices[] = vEnd;

    Yreal alfa = atan2f(vSub.y, vSub.x);

    Yreal a0 = alfa + angle;

    Yreal a1 = alfa - angle;

    alfa += atanf(top*2.0f);

    Yreal l = len * sqrtf(0.25f + top*top);

    pVertices[].x = vStart.x + cosf(alfa)*l;

    pVertices[].y = vStart.y + sinf(alfa)*l;

    pVertices[].z = 0.0f;

    l = len * bian;

    pVertices[].x = vStart.x + cosf(a0)*l;

    pVertices[].y = vStart.y + sinf(a0)*l;

    pVertices[].z = 0.0f;

    pVertices[].x = vEnd.x - cosf(a1)*l;

    pVertices[].y = vEnd.y - sinf(a1)*l;

    pVertices[].z = 0.0f;

}

软件截图：

从图上看，我学得这东西不该叫花篮，应该叫花圈。

软件下载地址:http://files.cnblogs.com/WhyEngine/Fractal.7z