这算法是哪里错了……

TheRebirth

关键源码如下：（只求各位别光看着就晕过去了就行了）

void CylinderRender(float x1,float x2,float y1,float y2,float z1,float z2,float distance1,float distance2,
                                        float xscale1=1.0,float xscale2=1.0,float yscale1=1.0,float yscale2=1.0,
                                        int stockings=16,float xangle=0.0,float yangle=0.0,float zangle=0.0)
{
        glRotatef(xangle,1.0f,0.0f,0.0f);
        glRotatef(yangle,0.0f,1.0f,0.0f);
        glRotatef(zangle,0.0f,0.0f,1.0f);
        for (int i=1;i<stockings;i++)
        {
                glColor3f(((float)i/stockings)*1.0f,((float)i/stockings)*1.0f,1.0f);
                glVertex3f(x1+distance1*((cos(360.0/i*stockings)))*xscale1,y1+distance1*((sin(360.0/i*stockings)))*yscale1,z1);
                glVertex3f(x2+distance1*((cos(360.0/i*stockings)))*xscale2,y2+distance1*((sin(360.0/i*stockings)))*yscale2,z2);
                glVertex3f(x2+distance1*((cos(360.0/(i+1)*stockings)))*xscale2,y2+distance1*((sin(360.0/(i+1)*stockings)))*yscale2,z2);
                glVertex3f(x1+distance1*((cos(360.0/(i+1)*stockings)))*xscale1,y1+distance1*((sin(360.0/(i+1)*stockings)))*yscale1,z1);       
        }
}

int DrawGLScene(GLvoid)                                                                        // Here's Where We Do All The Drawing
{
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);        // Clear Screen And Depth Buffer
        glLoadIdentity();
        gluLookAt(5.0f,5.0f,-20.0f,5.0f,-2.5f,10.0f,0.0f,1.0f,0.0f);
//        glTranslatef(0.0f,0.0f,20.0f);
        glBegin(GL_QUADS);
        glColor3f(0.0f,0.4f,1.0f);
        for (int i=0;i<25;i++)
        {
                glVertex3f(i*1.5f-0.125f-2.0f,-2.0f,-100.0f);
                glVertex3f(i*1.5f+0.125f-2.0f,-2.0f,-100.0f);
                glVertex3f(i*1.5f+0.125f-2.0f,-2.0f,100.0f);
                glVertex3f(i*1.5f-0.125f-2.0f,-2.0f,100.0f);
                glVertex3f(-100.0f,-2.0f,i*1.5f+0.125f-2.0f);
                glVertex3f(100.0f,-2.0f,i*1.5f+0.125f-2.0f);
                glVertex3f(100.0f,-2.0f,i*1.5f-0.125f-2.0f);
                glVertex3f(-100.0f,-2.0f,i*1.5f-0.125f-2.0f);
        }
        glEnd();
        glRotatef(rtri,0.0f,1.0f,0.0f);
        glRotatef(rquad,1.0f,0.0f,0.0f);
        glRotatef(rz,0.0f,0.0f,1.0f);
        glBegin(GL_QUADS);
        CylinderRender(-5.0,5.0,2.0,2.0,-5.0,5.0,3.0,5.0,1.0,1.0,1.0,1.0,16,0.0,0.0,0.0);
        glEnd();
        return TRUE;                                                                                // Keep Going
}

根据原计划，CylinderRender函数中的x1是初始X位置,x2是末X位置,y1是初始Y位置,y2是末Y位置,z1是初始Z位置,z2是末Z位置,distance1是初始半径,distance2是末半径,xscale1是初始X缩放,yscale1是初始Y缩放,xscale2是末X缩放,yscale2是末Y缩放,stockings是侧面多边形数量,xangle是X角度,yangle是Y角度,zangle是Z角度
以下函数已定义：
glColor3f的作用是设置该点的颜色，三个参数的最大值是1.0，相当于255.
gluLookat的参数分别是视点X,视点Y,视点Z,目标点X,目标点Y,目标点Z,头部朝向X,头部朝向Y,头部朝向Z

不知为啥原因，运行出来的效果就这么奇葩……（是不是还是该让数学帝来…）


旋转一定角度后……



我本来想着如果这函数用得好的话建模可以完全不用担心的，看来代码建模得等一会儿了…… （限于各种原因我很难实现打开模型文件和操作模型和使模型骨骼旋转兼得，所以只能用代码建模了）

结城照美

已晕，求治疗

哇哈哈哇哈哈

好多星星啊········我要晕了·········

tjjlb

好多太阳啊！= =这是什么

c248611

目测不是C语言。

八月桑

好多VIP啊 都砸过来吧。

TheRebirth

首先可以说这就是C++，倒是这数学帝呢……（唉，是不是一提数学类问题就没人能给个回答啥的？就算有曲面方程也没用，真是太悲哀了）

救世小树

c++  ？
好晕。。一个函数那么一堆参数。。不明觉厉

SuperMario

描述太抽象，不知道你要干嘛

小学生

我表示没看懂。