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,