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Need help with resistors value, and output. THIS IS C++ PROGRAMMING

 
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Need help with resistors value, and output. THIS IS C++ PROGRAMMING
TheHater
1 May, 2007 - 06:13 PM
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CODE
#include <iostream>
#include <iomanip>
#include <cstring>
#include <cstdlib>
#include <cmath>
using namespace std;
#define size 4

struct ResistorsValue
{
    char ColorBand[10];
    int black, brown, red, orange, yellow, green, blue, violet, gray, white; // 0 1 2 3 4 5 6 7 8 9
    double gold, silver, none; // +-5% +-10% +-15%
};

//void Function(Resistor*, int, double);

void main(void)
{
    int num, num2, i, colors, numcolor1, numcolor2, numcolor3;
    double Value;

    cout << setprecision(2) << setiosflags(ios :: fixed | ios :: showpoint);

    cout << "Enter the number of Resistors value you want to create: ";
    cin >> num;
    cout << endl;

    ResistorsValue *cal = new ResistorsValue[num];

    cal.black = 1;

    for(i = 0; i < num; ++i)
    {
        cout << "Enter information for resistor number" << i + 1 << endl;

        for(colors = 0; colors < size; ++colors)
        {
            cout << "Enter color band number " << colors + 1 << ": ";
            cin.ignore();
            cin.getline(cal[colors].ColorBand,10);
        }


        /*num2 = 1 * pow(10, numcolor3);
        Value = ((numcolor1 * 10) + numcolor2) * num; // This is the equation to calculate the resistor value.
        */
        
    }
}



can someone help me show the out put, and how to calculate the resistor value. the equation i came up with work to calculate the resistor value, but I can't seem to get the numcolor# input

This post has been edited by NickDMax: 1 May, 2007 - 07:38 PM
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William_Wilson
RE: Need Help With Resistors Value, And Output. THIS IS C++ PROGRAMMING
1 May, 2007 - 07:10 PM
Post #2

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Here's a chart to calculate resistors:
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it was possibly my best friend in electrical physics
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TheHater
RE: Need Help With Resistors Value, And Output. THIS IS C++ PROGRAMMING
1 May, 2007 - 07:12 PM
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QUOTE(William_Wilson @ 1 May, 2007 - 08:10 PM) *

Here's a chart to calculate resistors:
Attached Image
it was possibly my best friend in electrical physics

I need to write a program to do that
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ajwsurfer
RE: Need Help With Resistors Value, And Output. THIS IS C++ PROGRAMMING
1 May, 2007 - 09:20 PM
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This is just a quick stab at this, and it will need a lot of extra features to accommodate the two different numbers of bands possible. A profound difference is the use of command line arguments rather than a menu, but if you finish the solving everything else it will be easy to throw a menu back in there. Hopefully you will be able to start to see the switching possibilities here that will bring fuzzy data into order.
The enum makes it so that the color bands can be labeled as numbers or colors and still get the same results. Hopefully it will take the confusion out of the case statements that will be needed in the getValue(str) getMulitplier(str) getTolerance(str) functions.


CODE

  enum colorBand { black, brown, red, orange, yellow, green, blue, violet, gray, white, gold, silver };
  double multiplier[] = {1.0, 10.0, 100.0, 1000.0, 10000.0, 100000.0, 1000000.0, 0.0, 0.0, 0.0, 0.1, 0.01};
  double tolerance[] = { 0.0, 0.01, 0.02, 0.0, 0.0, 0.005, 0.0025, 0.001, 0.0, 0.0, 0.05, 0.10 };



int main(int argc, char **argv)
{
  if (argc != 6) {
    cout <<  "USAGE: This program requires 5 resistor color codes, it then displays the value in ohms of the resitor.\n"
         << "Example: " << arg[0] << " red blue green violet gray\n"
         << "Output -> 10000 ohms \n";
    return 0;
  }
  double equation[6];
  
  for (int i = 1; i < 6; i++)
    equation[i-1] = getValue( arg[i], i );
  
  displayResults( equation );
}

double getBandValue(char *str, int location) {
   double temp;
   switch (location) {
     case 1: case 2: temp = getValue(str);
     case 3: case 4: temp = getMulitplier(str);
     case 5: temp = getTolerance(str);
   };
   return temp;
}

P.S.
This probably won't compile very well, but a good solution to that is to make a class and place the functions, arrays and enumerator into it. (I hope that you have learned how to make classes already.)

This post has been edited by ajwsurfer: 1 May, 2007 - 09:36 PM
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TheHater
RE: Need Help With Resistors Value, And Output. THIS IS C++ PROGRAMMING
8 May, 2007 - 07:17 PM
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CODE

#include <iostream>
#include <iomanip>
#include <cstring>
#include <cstdlib>
#include <cmath>
using namespace std;
#define size 4

struct ResistorsValue
{
    char Color1[10], Color2[10], Color3[10], Color4[10];
    
    double gold, silver, none; // +-5% +-10% +-15%
    double Value;
    int numcolor4;
};

void display(ResistorsValue*, int);

void main(void)
{
    
    int num, i, numcolor1, numcolor2, numcolor3;
    double num2;
    
    int black = 0, brown = 1, red = 2, orange = 3, yellow = 4;
    int green = 5, blue = 6, violet = 7, gray = 8, white = 9; // 0 1 2 3 4 5 6 7 8 9

    cout << setprecision(2) << setiosflags(ios :: fixed | ios :: showpoint);

    cout << "Enter the number of Resistors value you want to create: ";
    cin >> num;
    cout << endl;

    ResistorsValue *cal = new ResistorsValue[num];

    for(i = 0; i < num; ++i)
    {
            cin.ignore();
            cout << "Enter the first color on the band: ";
            cin.getline(cal[i].Color1,10);

            cout << "Enter the second color on the band: ";
            cin.getline(cal[i].Color2,10);

            cout << "Enter the third color on the band: ";
            cin.getline(cal[i].Color3,10);

            cout << "Enter the fourth color on the band: ";
            cin.getline(cal[i].Color4,10);
                
                if(strcmp (cal[i].Color1,"black") == 0)
                {
                    numcolor1 = 0;
                }
        
                else if(strcmp (cal[i].Color1,"brown") == 0)
                {
                    numcolor1 = 1;
                }
                else if(strcmp (cal[i].Color1,"red") == 0)
                {
                    numcolor1 = 2;
                }
                else if(strcmp (cal[i].Color1,"yellow") == 0)
                {
                    numcolor1 = 3;
                }
                else if(strcmp (cal[i].Color1,"orange") == 0)
                {
                    numcolor1 = 4;
                }
                else if(strcmp (cal[i].Color1,"green") == 0)
                {
                    numcolor1 = 5;
                }
                else if(strcmp (cal[i].Color1,"blue") == 0)
                {
                    numcolor1 = 6;
                }
                else if(strcmp (cal[i].Color1,"violet") == 0)
                {
                    numcolor1 = 7;
                }
                else if(strcmp (cal[i].Color1,"gray") == 0)
                {
                    numcolor1 = 8;
                }
                else
                {
                    numcolor1 = 9;
                }



            
                if(strcmp (cal[i].Color2,"black") == 0)
                    numcolor2 = 0;
        
                else if(strcmp (cal[i].Color2,"brown") == 0)
                {
                    numcolor2 = 1;
                }
                else if(strcmp (cal[i].Color2,"red") == 0)
                {
                    numcolor2 = 2;
                }
                else if(strcmp (cal[i].Color2,"yellow") == 0)
                {
                    numcolor2 = 3;
                }
                else if(strcmp (cal[i].Color2,"orange") == 0)
                {
                    numcolor2 = 4;
                }
                else if(strcmp (cal[i].Color2,"green") == 0)
                {
                    numcolor2 = 5;
                }
                else if(strcmp (cal[i].Color2,"blue") == 0)
                {
                    numcolor2 = 6;
                }
                else if(strcmp (cal[i].Color2,"violet") == 0)
                {
                    numcolor2 = 7;
                }
                else if(strcmp (cal[i].Color2,"gray") == 0)
                {
                    numcolor2 = 8;
                }
                else
                {
                    numcolor2 = 9;
                }


            
                if(strcmp (cal[i].Color3,"black") == 0)
                {
                    numcolor3 = 0;
                }
        
                else if(strcmp (cal[i].Color3,"brown") == 0)
                {
                    numcolor3 = 1;
                }
                else if(strcmp (cal[i].Color3,"red") == 0)
                {
                    numcolor3 = 2;
                }
                else if(strcmp (cal[i].Color3,"yellow") == 0)
                {
                    numcolor3 = 3;
                }
                else if(strcmp (cal[i].Color3,"orange") == 0)
                {
                    numcolor3 = 4;
                }
                else if(strcmp (cal[i].Color3,"green") == 0)
                {
                    numcolor3 = 5;
                }
                else if(strcmp (cal[i].Color3,"blue") == 0)
                {
                    numcolor3 = 6;
                }
                else if(strcmp (cal[i].Color3,"violet") == 0)
                {
                    numcolor3 = 7;
                }
                else if(strcmp (cal[i].Color3,"gray") == 0)
                {
                    numcolor3 = 8;
                }
                else
                {
                    numcolor3 = 9;
                }


                if (strcmp (cal[i].Color4, "gold") == 0)
                {
                    cal[i].numcolor4 = 5;
                }
                else if (strcmp (cal[i].Color4, "silver") == 0)
                    cal[i].numcolor4 = 10;
                else
                {
                    cal[i].numcolor4 = 15;
                }
            
                    


        num2 = 1 * pow(10, numcolor3);
        cal[i].Value = ((numcolor1 * 10) + numcolor2) * num2; // This is the function to calculate the resistor value.

        
    }
    display(cal, num);
    
}// End of main program

void display(ResistorsValue *cal, int num)
{
    int i;
    cout << setw(10) << "Color 1" << setw(10) << "Color2" << setw(10) << "Color 3" << setw(10) << "Color 4" << setw(10) << " Resistor Value" << setw(10);
    cout << endl;

    for (i = 0; i < num; ++i)
    {
            cout << setw(10) << cal[i].Color1 << setw(10) << cal[i].Color2 << setw(10) << cal[i].Color3 << setw(10) << cal[i].Color4 << setw(10) << cal[i].Value << "+-" << cal[i].numcolor4 << "%" << " Oms";
            cout << endl;
    }

    int j;

    ResistorsValue sort;

    for (j = 0; j < num - 1; ++j)
    {
        for (i = 0; i < num - 1; ++i)
        {
            if (cal[i].Value, cal[i + 1].Value > 0)
            {
                sort = cal[i];
                cal[i] = cal[i + 1];
                cal[i + 1] = sort;
            }
        }
    }
    cout << "Here is the record sorted under resistor value" << endl;

    cout << setw(10) << "Color 1" << setw(10) << "Color2" << setw(10) << "Color 3" << setw(10) << "Color 4" << setw(10) << "Resistor Value" << setw(10);
    cout << endl;

    for (i = 0; i < num; ++i)
    {
        cout << setw(10) << cal[i].Color1 << setw(10) << cal[i].Color2 << setw(10) << cal[i].Color3 << setw(10) << cal[i].Color4 << setw(10) << cal[i].Value << "+-" << cal[i].numcolor4 << "%" << " Oms";
            cout << endl;
    }

    cout << endl;

    char respond;
    int search;

    cout << "Do you want to search for a resistor value: [Y,N]";
    cin.ignore();
    respond = cin.get();
    
    while ((respond == 'Y') || (respond == 'y'))
    {
        cin.ignore();
        cout << "Enter the resistor value you want to search";
        cin >> search;

        for (i = 0; i < num; ++i)
        {
            if( cal[i].Value == search )
            {
                break;
            }
        }

        if (i == num)
        {
            cout << "Invalid user input!";
        }

        else
        {
            cout << setw(10) << cal[i].Color1 << setw(10) << cal[i].Color2 << setw(10) << cal[i].Color3 << setw(10) << cal[i].Color4 << setw(10) << cal[i].Value << setw(10) << "+-" << cal[i].numcolor4 << "%" << " Oms";
            cout << endl;
        }

        cout << "Do you want to search again? ";
        respond = cin.get();
    }
    cout << endl;    
}



that seem to work just fine, and thanks to everyone who respond to this topic
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