0

データファイルを入力する必要があります (以下):

        14        16        18        20        22        24        
        27        30        35        40        45        50

        8         10        11        12        13        14        
        16        18        21        24        27        30

        0.4       0.5       0.5       0.5       0.5       0.5        
        0.6       0.6       0.6       0.6       0.6       0.6

        16        17        18        19        20        21        
        22        23        25        26        27        29

        2.0       2.2       2.2       2.3       2.4       2.5        
        2.6       2.7       2.8       2.9       3.1       3.2

        1.7       1.8       2.0       2.2       2.4       2.5        
        2.8       3.0       3.4       3.8       3.8       3.8

列 1 を選択すると、これらの値が出力されます。

これが私のコードです。誰でもエラーを見ることができますか？

void TimberType() {

    ifstream inFile;
    inFile.open("TableOfValues.txt", ios::in );
    string TimberValues;
    inFile >> TimberValues;
    inFile >> bendStr >> tensPara >> tensPerp >> compPara >> compPerp >> shear >> mElasModPara >> elasMod5Para >> mElasModPerp >> mShearMod >> density >> mDensity;


    cout << "Please enter timber type " << endl;
    cout << "C14 = 1        C16 = 2        C18 = 3        C20 = 4" << endl;
    cout << "C22 = 5        C24 = 6        C27 = 7        C30 = 8" << endl;
    cout << "C35 = 9        C40 = 10    C45 = 11    C50 = 12" << endl;
    cin >> timberType;

    {
        switch (timberType) {
        case 1:
            timberType = 1;
            cout << "You have selected timber type C14" << endl;
            cout << TimberValues[1];
            break;
        case 2:
            timberType = 2;
            cout << "You have selected timber type C16" << endl;
            cout << TimberValues[2];
            break;
        case 3:
            timberType = 3;
            cout << "You have selected timber type C18" << endl;
            cout << TimberValues[3];
            break;
        case 4:
            timberType = 4;
            cout << "You have selected timber type C20" << endl;
            cout << TimberValues[4];
            break;
        case 5:
            timberType = 5;
            cout << "You have selected timber type C22" << endl;
            cout << TimberValues[5];
            break;
        case 6:
            timberType = 6;
            cout << "You have selected timber type C24" << endl;
            cout << TimberValues[6];
            break;
        case 7:
            timberType = 7;
            cout << "You have selected timber type C27" << endl;
            cout << TimberValues[7];
            break;
        case 8:
            timberType = 8;
            cout << "You have selected timber type C30" << endl;
            cout << TimberValues[8];
            break;
        case 9:
            timberType = 9;
            cout << "You have selected timber type C35" << endl;
            cout << TimberValues[9];
            break;
        case 10:
            timberType = 10;
            cout << "You have selected timber type C40" << endl;
            cout << TimberValues[10];
            break;
        case 11:
            timberType = 11;
            cout << "You have selected timber type C45" << endl;
            cout << TimberValues[11];
            break;
        case 12:
            timberType = 12;
            cout << "You have selected timber type C50" << endl;
            cout << TimberValues[12];
            break;

        }

        cout << "Bending Strength: " << bendStr << "N/mm^2" << endl;
        cout << "Tension in Parallel: " << tensPara << "N/mm^2" << endl;
        cout << "Tension in Perpendicular: " << tensPerp << "N/mm^2" << endl;
        cout << "Compression in Parallel: " << compPara << "N/mm^2" << endl;
        cout << "Compression in Perpendicular: " << compPerp << "N/mm^2" << endl;
        cout << "Shear: " << shear << "N/mm^2" << endl;

    }
}

現時点では、曲げ強度、平行張力、垂直張力、平行圧縮、垂直圧縮、せん断の値が 0 になっています。

どんなアイデアでも大歓迎です。ありがとうございました。

4

3 に答える 3

0

簡単にするために、配列を使用して値をconst int ROW = 12、COL=6に読み込むことができます。int table [ROW] [COL] = {}; istreamファイル（ "TablesOfValues.txt"）;

for(int i = 0; i < ROW && file; ++i){
  for(int j = 0; j < COL && file; ++j){
        file >> table[i][j];
  }
}

//now tables[0][0] = 14
//now tables[1][2] = 35
//added a slash to first comment
于 2012-12-09T17:52:26.073 に答える
0

以下にいくつかの提案を示します。 テーブル ルックアップに
置き換えます。switch

struct Timber_Text_Entry
{
    unsigned int index;
    char const   text;
};

const Timber_Text_Entry Timber_Type_Names[] =
{
    { 1, "C14"}, { 2, "C16"}, {3, "C18"}, {4, "C20"},
//...
};
const unsigned int NUMBER_OF_TIMBER_TYPES =
    sizeof(Timber_Type_Names) / sizeof(Timber_Type_Names[0]);

// Printing the menu contents:
for (unsigned int i = 0; i < NUMBER_OF_TIMBER_TYPES; ++i)
{
  cout << Timber_Type_Names[i].text
       << " = "
       << Timber_Type_Names[i].index;
  if ((i % 4) == 3) cout << "\n";
}

// The switch statement replaced:
if ((timberType > 1) && (timberType <= NUMBER_OF_TIMBER_TYPES))
{
    // This should search for the index == timberType instead
    // of using timberType as an index into the array.
    // The code below assumes the order of the entries will
    // not change.
    // The "-1" is because timberTypes start at 1 and the
    // array indices start at 0.
    cout << "You have selected timber type ";
    cout << Timber_Type_Names[timberType - 1].text;
    cout << endl;
}
else
{
    cout << "Invalid timber selection: " << timberType << endl;
}
于 2012-12-09T19:59:14.783 に答える
0 
       #include <iostream>
        #include <array>

        string elem[12][7] = {
        //First column is the row number (assuming they're related to timber so starting at 1)
        // Please note these are strings
        { "1",   "14",  "16",   "18",  "20",  "22",  "24"  }
        { "2",   "27",  "30",   "35",  "40",  "45",  "50"  }
        { "3",   "8",   "10",   "11",  "12",  "13",  "14"  }
        { "4",   "16",  "18",   "21",  "24",  "27",  "30"  }
        { "5",   "0.4", "0.5",  "0.5", "0.5", "0.5", "0.5" }
        { "6",   "0.6", "0.6",  "0.6", "0.6", "0.6", "0.6" }
        { "7",   "16",  "17",   "18",  "19",  "20",  "21"  }
        { "8",   "22",  "23",   "25",  "26",  "27",  "29"  }
        { "9",   "2.0", "2.2",  "2.2", "2.3", "2.4", "2.5" }
        { "10",  "2.6", "2.7",  "2.8", "2.9", "3.1", "3.2" }
        { "11",  "1.7", "1.8",  "2.0", "2.2", "2.4", "2.5" }
        { "12",  "2.8", "3.0",  "3.4", "3.8", "3.8", "3.8" }
        }

     void TimberType ()
        {
            ifstream inFile;
            inFile.open ("TableOfValues.txt", ios :: in);
            string TimberValues;
            inFile>>TimberValues;
            inFile>>bendStr>>tensPara>>tensPerp>>compPara>>compPerp>>shear>>mElasModPara>>elasMod5Para>>mElasModPerp>>mShearMod>>density>>mDensity;


            cout << "Please enter timber type " << endl;
            cout << "C14 = 1        C16 = 2     C18 = 3     C20 = 4" << endl;
            cout << "C22 = 5        C24 = 6     C27 = 7     C30 = 8" << endl;
            cout << "C35 = 9        C40 = 10    C45 = 11    C50 = 12" << endl;
            cin >> timberType;  

        {
            switch (timberType)
            {
            case 1:
                timberType = 1;
                cout << "You have selected timber type C14" << endl;
                cout << TimberValues [1];
                break;
            case 2:
                timberType = 2;
                cout << "You have selected timber type C16" << endl;
                cout << TimberValues [2];
                break;
            case 3: 
                timberType = 3; 
                cout << "You have selected timber type C18" << endl;
                cout << TimberValues [3];
                break;
            case 4:
                timberType = 4;
                cout << "You have selected timber type C20" << endl;
                cout << TimberValues [4];
                break;
            case 5:
                timberType = 5;
                cout << "You have selected timber type C22" << endl;
                cout << TimberValues [5];
                break;
            case 6:
                timberType = 6; 
                cout << "You have selected timber type C24" << endl;
                cout << TimberValues [6];
                break;
            case 7:
                timberType = 7;
                cout << "You have selected timber type C27" << endl;
                cout << TimberValues [7];
                break;
            case 8:
                timberType = 8;
                cout << "You have selected timber type C30" << endl;
                cout << TimberValues [8];
                break;
            case 9:
                timberType = 9; 
                cout << "You have selected timber type C35" << endl;
                cout << TimberValues [9];
                break;
            case 10:
                timberType = 10;
                cout << "You have selected timber type C40" << endl;
                cout << TimberValues [10];
                break;
            case 11:
                timberType = 11;
                cout << "You have selected timber type C45" << endl;
                cout << TimberValues [11];
                break;
            case 12:
                timberType = 12; 
                cout << "You have selected timber type C50" << endl;
                cout << TimberValues [12];
                break;

            }

// This is the code you need to edit to search the array

void searchString(string A[],int size, string target)
{
    int j;
    {
    for(j=0; j < size; j++)
        if(A[j] == target)
            cout << A[j] << endl;
        else cout << "Not Found";
    }
}


            cout << "Bending Strength: "<< bendStr << "N/mm^2" << endl;
            cout << "Tension in Parallel: "<< tensPara << "N/mm^2" << endl;
            cout << "Tension in Perpendicular: "<< tensPerp << "N/mm^2" <<endl;
            cout << "Compression in Parallel: "<< compPara << "N/mm^2" << endl;
            cout << "Compression in Perpendicular: "<< compPerp << "N/mm^2" << endl;
            cout << "Shear: "<< shear << "N/mm^2" << endl;

        }
        }

I believe there is a simple search command that will let you reference the timber numbers based on their number. Please post the final code here because I'm actually working on something like this and would love to know how it worked for you.
于 2012-12-09T17:55:31.177 に答える