怎么用C语言实现3d旋转效果图

要实现3D旋转效果图，可以使用C语言结合图形库进行绘制。以下是一个简单的示例代码：

#include <stdio.h>
#include <graphics.h>
#include <math.h>

#define PI 3.14159265

// 3D向量结构体
typedef struct {
    float x;
    float y;
    float z;
} Vector3D;

// 旋转矩阵结构体
typedef struct {
    float m[3][3];
} RotationMatrix;

// 点的旋转函数
void rotatePoint(Vector3D *point, RotationMatrix *rotationMatrix) {
    Vector3D result;
    result.x = point->x * rotationMatrix->m[0][0] + point->y * rotationMatrix->m[1][0] + point->z * rotationMatrix->m[2][0];
    result.y = point->x * rotationMatrix->m[0][1] + point->y * rotationMatrix->m[1][1] + point->z * rotationMatrix->m[2][1];
    result.z = point->x * rotationMatrix->m[0][2] + point->y * rotationMatrix->m[1][2] + point->z * rotationMatrix->m[2][2];
    *point = result;
}

int main() {
    int gd = DETECT, gm;
    initgraph(&gd, &gm, "");

    // 初始化三维点的坐标
    Vector3D point1 = {100, 100, 100};
    Vector3D point2 = {-100, 100, 100};
    Vector3D point3 = {-100, -100, 100};
    Vector3D point4 = {100, -100, 100};
    Vector3D point5 = {100, 100, -100};
    Vector3D point6 = {-100, 100, -100};
    Vector3D point7 = {-100, -100, -100};
    Vector3D point8 = {100, -100, -100};

    // 设置旋转角度
    float angleX = 0.0, angleY = 0.0, angleZ = 0.0;
    // 设置旋转中心
    Vector3D center = {0, 0, 0};

    while (!kbhit()) {
        cleardevice();

        // 计算旋转矩阵
        RotationMatrix rotationMatrixX = {
            1, 0, 0,
            0, cos(angleX), -sin(angleX),
            0, sin(angleX), cos(angleX)
        };
        RotationMatrix rotationMatrixY = {
            cos(angleY), 0, sin(angleY),
            0, 1, 0,
            -sin(angleY), 0, cos(angleY)
        };
        RotationMatrix rotationMatrixZ = {
            cos(angleZ), -sin(angleZ), 0,
            sin(angleZ), cos(angleZ), 0,
            0, 0, 1
        };

        // 应用旋转矩阵
        rotatePoint(&point1, &rotationMatrixX);
        rotatePoint(&point2, &rotationMatrixX);
        rotatePoint(&point3, &rotationMatrixX);
        rotatePoint(&point4, &rotationMatrixX);
        rotatePoint(&point5, &rotationMatrixX);
        rotatePoint(&point6, &rotationMatrixX);
        rotatePoint(&point7, &rotationMatrixX);
        rotatePoint(&point8, &rotationMatrixX);

        rotatePoint(&point1, &rotationMatrixY);
        rotatePoint(&point2, &rotationMatrixY);
        rotatePoint(&point3, &rotationMatrixY);
        rotatePoint(&point4, &rotationMatrixY);
        rotatePoint(&point5, &rotationMatrixY);
        rotatePoint(&point6, &rotationMatrixY);
        rotatePoint(&point7, &rotationMatrixY);
        rotatePoint(&point8, &rotationMatrixY);

        rotatePoint(&point1, &rotationMatrixZ);
        rotatePoint(&point2, &rotationMatrixZ);
        rotatePoint(&point3, &rotationMatrixZ);
        rotatePoint(&point4, &rotationMatrixZ);
        rotatePoint(&point5, &rotationMatrixZ);
        rotatePoint(&point6, &rotationMatrixZ);
        rotatePoint(&point7, &rotationMatrixZ);
        rotatePoint(&point8, &rotationMatrixZ);

        // 绘制旋转后的点
        line(point1.x, point1.y, point2.x, point2.y);
        line(point2.x, point2.y, point3.x,