Code:
//This program will ask the user to input a number between 1 and 2 in order to calculate the area of 5 shapes or the volume of another 4 shapes.
//After the user inputs his choice, the program will ask for necessary measurements in order to calculate area or volume, such as length, width, height,
//radius, etc.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h> //Used for the PI function.
#include "geometry.h" //Used to access all the functions on a separate header file.
int main()
{
double displayVolume[2][20] = {};
int choice;
int a, b;
char answer=' ';
char name[30] = " ";
char calcResults[128];
//Ask user for his first and last name, then print out in CAPS and welcome him/her to the program.
printf("Please, enter your first and last names separated by a space: ");
fgets(name, 30, stdin);
strupr(name);
printf("\nHello %s\nWelcome to My Geometric Calculator.\n", name);
//Write the results of each calculation to a file.
//Allow user to choose the name of the file by using the function strcat.
printf("\nEnter .txt file name to save future calculations: ");
scanf("%123s", calcResults);
strcat(calcResults, ".txt");
FILE *inputf;
inputf = fopen(calcResults, "w");
//Test if the file is functioning properly; if not, display an error message.
if (inputf == NULL)
{
printf("Error opening file!\n");
return 1;
}
do
{
choice = selectedOption();
//Switch statement in order to allow the choice between different shapes to calculate area or volume. Print to file
switch(choice)
{
case 1:
printf("\nEnter data to calculate area of Parallelogram.");
printf("\n\nBase: ");
scanf("%f", &base);
printf("\nHeight: ");
scanf("%f", &height);
printf("\nThe Area of the Parallelogram is %.2f\n", parallelogramArea(base, height));
fprintf(inputf, "\nThe Area of the Parallelogram is %.2f\n", parallelogramArea(base, height));
break;
case 2:
printf("\nEnter data to calculate area of a triangle.");
printf("\n\nBase: ");
scanf("%f", &base);
printf("\nHeight: ");
scanf("%f", &height);
printf("\nThe Area of the Triangle is %.2f\n", triangleArea(base, height));
fprintf(inputf, "\nThe Area of the Triangle is %.2f\n", triangleArea(base, height));
break;
case 3:
printf("\nEnter data to calculate area of a trapezoid.");
printf("\n\nBase: ");
scanf("%f", &base);
printf("\nBase Two: ");
scanf("%f", &baseTwo);
printf("\nHeight: ");
scanf("%f", &height);
printf("\nThe Area of the Trapezoid is %.2f\n", trapezoidArea(base, baseTwo, height));
fprintf(inputf, "\nThe Area of the Trapezoid is %.2f\n", trapezoidArea(base, baseTwo, height));
break;
case 4:
printf("\nEnter data to calculate area of a circle. \n\nRadius: ");
scanf("%f", &radius);
printf("\nThe Area of the Circle is %.2f\n", circleArea(radius));
fprintf(inputf, "\nThe Area of the Circle is %.2f\n", circleArea(radius));
break;
case 5:
printf("\nEnter data to calculate area of a regular polygon.");
printf("\n\nLength: ");
scanf("%f", &length);
printf("\nWidth: ");
scanf("%f", &width);
printf("\nThe Area of the Regular Polygon is %.2f\n", regPolygonArea(length, width));
fprintf(inputf, "\nThe Area of the Regular Polygon is %.2f\n", regPolygonArea(length, width));
break;
case 6:
printf("\nEnter data to calculate volume of a rectangular prism.");
printf("\n\nLength: ");
scanf("%f", &length);
printf("\nWidth: ");
scanf("%f", &width);
printf("\nHeight: ");
scanf("%f", &height);
displayVolume[0][1] = length * width;
displayVolume[1][1] = height;
printf("\nThe Volume of the Rectangular Prism is %.2f\n", rectPrismVolume(length, width, height));
fprintf(inputf, "\nThe Volume of the Rectangular Prism is %.2f\n", rectPrismVolume(length, width, height));
break;
case 7:
printf("\nEnter data to calculate volume of a right circular cylinder.");
printf("\n\nRadius: ");
scanf("%f", &radius);
printf("\nHeight: ");
scanf("%f", &height);
printf("\nThe Volume of the Right Circular Cylinder is %.2f\n", rightCircCylinderVolume(radius, height));
fprintf(inputf, "\nThe Volume of the Right Circular Cylinder is %.2f\n", rightCircCylinderVolume(radius, height));
break;
case 8:
printf("\nEnter data to calculate volume of a right square pyramid.");
printf("\n\nBase Edge: ");
scanf("%f", &baseEdge);
printf("\nHeight: ");
scanf("%f", &height);
printf("\nThe Volume of the Right Square Pyramid is %.2f\n", rightSqrPyramidVolume(baseEdge, height));
fprintf(inputf, "\nThe Volume of the Right Square Pyramid is %.2f\n", rightSqrPyramidVolume(baseEdge, height));
break;
case 9:
printf("\nEnter data to calculate volume of a right circular cone.");
printf("\n\nRadius: ");
scanf("%f", &radius);
printf("\nHeight: ");
scanf("%f", &height);
printf("\nThe Volume of the Right Circular Cone is %.2f\n", rightCircConeVolume(radius, height));
fprintf(inputf, "\nThe Volume of the Right Circular Cone is %.2f\n", rightCircConeVolume(radius, height));
break;
default: puts("You did not enter a valid number.");
}
//Allow user to try again by using an if statement.
printf("\nTry again?\n");
printf("\nEnter Y or y for yes or any other value to exit:\n");
scanf("%s", &answer);
}while(answer == 'Y' || answer == 'y');
//Use array to display the Volume calculations done by the user.
for(a = 0; a <= 1; a++)
{
for(b = 0; b <= 19; b++)
{
printf("You calculated the volume of Rectangular Prisms: \n");
printf("Area of Base: %.2f", a, displayVolume[a][1]);
printf("\tHeight: %.2f", b, displayVolume[1][b]);
printf("\tVolume: %.2f\n", rectPrismVolume(length, width, height));
}
}
//Close the file.
fclose(inputf);
return 0;
}
//The menuArea function is used in order to prompt the user to select a shape and calculate its area, returning the choice at the end.
int menuArea()
{
int figure;
printf("\nSelect figure: \n");
//Printf with figures for area
printf("\t1- Parallelogram\n\t2- Triangle\n\t3- Trapezoid\n\t4- Circle\n\t5- Regular Polygon\n");
printf("\n\nEnter your option: ");
scanf("%d", &figure);
return figure;
}
//The menuVolume function is used in order to prompt the user to select a shape and calculate its volume, returning the choice at the end.
int menuVolume()
{
int option;
printf("\nSelect figure: \n");
//Printf with figures for volume
printf("\t1- Rectangular prism\n\t2- Right circular cylinder\n\t3- Right square pyramid\n\t4- Right circular cone\n");
printf("\n\nEnter your option: ");
scanf("%d", &option);
return option+5;
}
//The selectedOption function is used in order to return the user's choice between area and volume, returning the choice at the end.
int selectedOption()
{
int choice;
printf("\nSelect one of the following options: ");
printf("\n\t1- Calculate area\n\t2- Calculate volume\n");
printf("\nEnter your option: ");
scanf("%d", &choice);
switch(choice)
{
case 1: choice = menuArea();
break;
case 2: choice = menuVolume();
break;
}
return(choice);
}
Originally Posted by Salem
