罪（）COS（）環式

Question

這是源代碼：

#include <Windows.h> 
#include <string> 
#include <iostream> 
#include <fstream> 
#include <math.h> 

using namespace std; 

#define d_open fstream::in | fstream::out | fstream::app | fstream::ate 
#define Space " " 
#define d_qq "\"" 


struct point3D 
{ 
    float X; 
    float Y; 
    float Z; 
}; 

struct ObjectStruct 
{ 
    point3D T_LT; 
    point3D T_LB; 
    point3D T_RT; 
    point3D T_RB; 
    point3D B_LT; 
    point3D B_LB; 
    point3D B_RT; 
    point3D B_RB; 
}; 

void CreateObject(ObjectStruct myobject) 
{ 
    fstream outmap; 
    outmap.open("prefab.map", d_open); 

    float * X = new float[6]; 
    float * Y = new float[6]; 
    float * Z = new float[6]; 
    float * X2 = new float[6]; 
    float * Y2 = new float[6]; 
    float * Z2 = new float[6]; 
    float * X3 = new float[6]; 
    float * Y3 = new float[6]; 
    float * Z3 = new float[6]; 

    X[0] = myobject.T_LT.X; 
    Y[0] = myobject.T_LT.Y; 
    Z[0] = myobject.T_LT.Z; 
    X2[0] = myobject.T_RT.X; 
    Y2[0] = myobject.T_RT.Y; 
    Z2[0] = myobject.T_RT.Z; 
    X3[0] = myobject.T_RB.X; 
    Y3[0] = myobject.T_RB.Y; 
    Z3[0] = myobject.T_RB.Z; 
    X[1] = myobject.B_LB.X; 
    Y[1] = myobject.B_LB.Y; 
    Z[1] = myobject.B_LB.Z; 
    X2[1] = myobject.B_RB.X; 
    Y2[1] = myobject.B_RB.Y; 
    Z2[1] = myobject.B_RB.Z; 
    X3[1] = myobject.B_RT.X; 
    Y3[1] = myobject.B_RT.Y; 
    Z3[1] = myobject.B_RT.Z; 
    X[2] = myobject.T_LT.X; 
    Y[2] = myobject.T_LT.Y; 
    Z[2] = myobject.T_LT.Z; 
    X2[2] = myobject.T_LB.X; 
    Y2[2] = myobject.T_LB.Y; 
    Z2[2] = myobject.T_LB.Z; 
    X3[2] = myobject.B_LB.X; 
    Y3[2] = myobject.B_LB.Y; 
    Z3[2] = myobject.B_LB.Z; 
    X[3] = myobject.B_RT.X; 
    Y[3] = myobject.B_RT.Y; 
    Z[3] = myobject.B_RT.Z; 
    X2[3] = myobject.B_RB.X; 
    Y2[3] = myobject.B_RB.Y; 
    Z2[3] = myobject.B_RB.Z; 
    X3[3] = myobject.T_RB.X; 
    Y3[3] = myobject.T_RB.Y; 
    Z3[3] = myobject.T_RB.Z; 
    X[4] = myobject.T_RT.X; 
    Y[4] = myobject.T_RT.Y; 
    Z[4] = myobject.T_RT.Z; 
    X2[4] = myobject.T_LT.X; 
    Y2[4] = myobject.T_LT.Y; 
    Z2[4] = myobject.T_LT.Z; 
    X3[4] = myobject.B_LT.X; 
    Y3[4] = myobject.B_LT.Y; 
    Z3[4] = myobject.B_LT.Z; 
    X[5] = myobject.B_RB.X; 
    Y[5] = myobject.B_RB.Y; 
    Z[5] = myobject.B_RB.Z; 
    X2[5] = myobject.B_LB.X; 
    Y2[5] = myobject.B_LB.Y; 
    Z2[5] = myobject.B_LB.Z; 
    X3[5] = myobject.T_LB.X; 
    Y3[5] = myobject.T_LB.Y; 
    Z3[5] = myobject.T_LB.Z; 




    outmap 

     << "{" << endl 

     << "(" << X[0] << Space << Y[0] << Space << Z[0] << ") " 
     << "(" << X2[0] << Space << Y2[0] << Space << Z2[0] << ") " 
     << "(" << X3[0] << Space << Y3[0] << Space << Z3[0] << ") " 
     << "YELLOW" 
     << " [ 1 0 0 0 ] [ 0 -1 0 0 ] 0 1 1 " << endl 

     << "(" << X[1] << Space << Y[1] << Space << Z[1] << ") " 
     << "(" << X2[1] << Space << Y2[1] << Space << Z2[1] << ") " 
     << "(" << X3[1] << Space << Y3[1] << Space << Z3[1] << ") " 
     << "YELLOW" 
     << " [ 1 0 0 0 ] [ 0 -1 0 0 ] 0 1 1 " << endl 

     << "(" << X[2] << Space << Y[2] << Space << Z[2] << ") " 
     << "(" << X2[2] << Space << Y2[2] << Space << Z2[2] << ") " 
     << "(" << X3[2] << Space << Y3[2] << Space << Z3[2] << ") " 
     << "YELLOW" 
     << " [ 0 1 0 0 ] [ 0 0 -1 0 ] 0 1 1 " << endl 

     << "(" << X[3] << Space << Y[3] << Space << Z[3] << ") " 
     << "(" << X2[3] << Space << Y2[3] << Space << Z2[3] << ") " 
     << "(" << X3[3] << Space << Y3[3] << Space << Z3[3] << ") " 
     << "YELLOW" 
     << " [ 0 1 0 0 ] [ 0 0 -1 0 ] 0 1 1 " << endl 

     << "(" << X[4] << Space << Y[4] << Space << Z[4] << ") " 
     << "(" << X2[4] << Space << Y2[4] << Space << Z2[4] << ") " 
     << "(" << X3[4] << Space << Y3[4] << Space << Z3[4] << ") " 
     << "YELLOW" 
     << " [ 1 0 0 0 ] [ 0 0 -1 0 ] 0 1 1 " << endl 

     << "(" << X[5] << Space << Y[5] << Space << Z[5] << ") " 
     << "(" << X2[5] << Space << Y2[5] << Space << Z2[5] << ") " 
     << "(" << X3[5] << Space << Y3[5] << Space << Z3[5] << ") " 
     << "YELLOW" 
     << " [ 1 0 0 0 ] [ 0 0 -1 0 ] 0 1 1 " << endl 

     << "}" << endl; 

    delete [] X; 
    delete [] Y; 
    delete [] Z; 
    delete [] X2; 
    delete [] Y2; 
    delete [] Z2; 
    delete [] X3; 
    delete [] Y3; 
    delete [] Z3; 
    outmap.flush(); 
    // 
    outmap.close(); 
} 





int main(int argc, char ** argv) 
{ 
    //HANDLE console = GetStdHandle(STD_OUTPUT_HANDLE); 
    SetConsoleTitle("Prefab Creator by Raichu (xgm.ru,d3scene.ru)"); 
    Sleep(200); 
    SetConsoleTitle("PrefabTool by Raichu v0.1"); 
    int select = 0; 
    cout << "Available shapes: 1-Ring, 2-Cube, 3-Triangle" << endl; 
    cin >> select; 
    if (select == 1) 
    { 
     cout << "Enter quantity of objects:" << endl; 
     int quality; 

     cin >> quality; 

     if (quality > 200 || quality < 10) 
     { 
      cout << "Error... Restart..." << endl; 
      return main(argc, argv); 
     } 


     cout << "Enter Ring radius:(example 20.0)" << endl; 
     float WhSz; 


     cin >> WhSz; 

     float inangle = 360/quality; 
     //system("cls"); 
     float X1_, X2_, Y1_, Y2_; 
     float X1, X2, Y1, Y2; 
     float a = 0; 
     X1_ = WhSz * cos(a); 
     Y1_ = WhSz * sin(a); 
     X2_ = (WhSz + 4) * cos(a); 
     Y2_ = (WhSz + 4) * sin(a); 
     a = inangle; 
     for (; a <= 360;) 
     { 



      X1 = WhSz * cos(a); 
      Y1 = WhSz * sin(a); 
      X2 = (WhSz + 4) * cos(a); 
      Y2 = (WhSz + 4) * sin(a); 
#pragma region TEST 
      //cout << "X:" << X1 << " Y:" << Y1 << endl; 

     /* COORD xy; 
      xy.X = X1; 
      xy.Y = Y1; 
      SetConsoleCursorPosition(console, xy); 
      cout << "+" << endl; 
      xy.X = X2; 
      xy.Y = Y2; 
      SetConsoleCursorPosition(console, xy); 
      cout << "?" << endl;*/ 
#pragma endregion 

      ObjectStruct NewObject; 
      /* down */ 
      NewObject.B_LB.Z = NewObject.B_LT.Z = NewObject.B_RB.Z = NewObject.B_RT.Z = -5; 
      /* top */ 
      NewObject.T_LB.Z = NewObject.T_LT.Z = NewObject.T_RB.Z = NewObject.T_RT.Z = 5; 


      NewObject.T_LT.X = NewObject.B_LT.X = X2_; 
      NewObject.T_LT.Y = NewObject.B_LT.Y = Y2_; 
      NewObject.T_LB.X = NewObject.B_LB.X = X1_; 
      NewObject.T_LB.Y = NewObject.B_LB.Y = Y1_; 

      NewObject.T_RT.X = NewObject.B_RT.X = X2; 
      NewObject.T_RT.Y = NewObject.B_RT.Y = Y2; 
      NewObject.T_RB.X = NewObject.B_RB.X = X1; 
      NewObject.T_RB.Y = NewObject.B_RB.Y = Y1; 


      CreateObject(NewObject); 


      X1_ = X1; 
      Y1_ = Y1; 
      X2_ = X2; 
      Y2_ = Y2; 

      //a += inangle/3; // - Create SUN 
      a += inangle; 

     } 

    } 

    system("pause"); 
    return 0; 
} 

問題代碼：

if (select == 1) 
    { 
     cout << "Enter quantity of objects:" << endl; 
     int quality; 

     cin >> quality; 

     if (quality > 200 || quality < 10) 
     { 
      cout << "Error... Restart..." << endl; 
      return main(argc, argv); 
     } 


     cout << "Enter Ring radius:(example 20.0)" << endl; 
     float WhSz; 


     cin >> WhSz; 

     float inangle = 360/quality; 
     //system("cls"); 
     float X1_, X2_, Y1_, Y2_; 
     float X1, X2, Y1, Y2; 
     float a = 0; 
     X1_ = WhSz * cos(a); 
     Y1_ = WhSz * sin(a); 
     X2_ = (WhSz + 4) * cos(a); 
     Y2_ = (WhSz + 4) * sin(a); 
     a = inangle; 
     for (; a <= 360;) 
     { 



      X1 = WhSz * cos(a); 
      Y1 = WhSz * sin(a); 
      X2 = (WhSz + 4) * cos(a); 
      Y2 = (WhSz + 4) * sin(a); 
#pragma region TEST 
      //cout << "X:" << X1 << " Y:" << Y1 << endl; 

     /* COORD xy; 
      xy.X = X1; 
      xy.Y = Y1; 
      SetConsoleCursorPosition(console, xy); 
      cout << "+" << endl; 
      xy.X = X2; 
      xy.Y = Y2; 
      SetConsoleCursorPosition(console, xy); 
      cout << "?" << endl;*/ 
#pragma endregion 

      ObjectStruct NewObject; 
      /* down */ 
      NewObject.B_LB.Z = NewObject.B_LT.Z = NewObject.B_RB.Z = NewObject.B_RT.Z = -5; 
      /* top */ 
      NewObject.T_LB.Z = NewObject.T_LT.Z = NewObject.T_RB.Z = NewObject.T_RT.Z = 5; 


      NewObject.T_LT.X = NewObject.B_LT.X = X2_; 
      NewObject.T_LT.Y = NewObject.B_LT.Y = Y2_; 
      NewObject.T_LB.X = NewObject.B_LB.X = X1_; 
      NewObject.T_LB.Y = NewObject.B_LB.Y = Y1_; 

      NewObject.T_RT.X = NewObject.B_RT.X = X2; 
      NewObject.T_RT.Y = NewObject.B_RT.Y = Y2; 
      NewObject.T_RB.X = NewObject.B_RB.X = X1; 
      NewObject.T_RB.Y = NewObject.B_RB.Y = Y1; 


      CreateObject(NewObject); 


      X1_ = X1; 
      Y1_ = Y1; 
      X2_ = X2; 
      Y2_ = Y2; 

      //a += inangle/3; // - Create SUN 
      a += inangle; 

     } 

    } 

我想創建使用對象的環。它變成3圈（3層）而不是一圈。如何解決它？這似乎是度數上的問題，但我無法理解。 （對不起，我使用翻譯谷歌翻譯）

Answer 1

sin和cos以弧度爲輸入，而不是度數。你需要將它們傳遞到sin和cos之前，你的角度轉換爲弧度：

X1 = WhSz * cos(a * 3.141592654/180.0);