怎么用C语言实现3d旋转效果图

   2025-02-15 9030
核心提示: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#inclu

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,

 
 
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