Homework SourseC programming define each function and must be preceded by a
C++ programming: define each function and must be preceded by a comment block that includes:
1) One line per parameter indicating if it is an input (passed by value) or IO (passed by reference) parameter, the type of the parameter and a very brief description of the parameter.
2) One line indicating the return type and describing it, for void functions indicate the function returns nothing.
3) A very brief description of the function\'s purpose.
4) This comment block should contain the information needed to use the function.
Write a program that draws the shape of the user’s choice using the symbol of the user’s choice. Your program should have and use the following functions:
int displayMenu ();
int getDimension (string,string);
void drawLine (int blanks,int numPen,char pen);
void drawRectangle (int,char);
void drawRectangle (int,int,char);
void drawDiamond (int,char);
void drawEqualTriangle (int,char);
void drawInvertTriangle (int,char);
char getNewPen ();
The function drawDiamond should call the functions drawEqualTriangle and drawInvertedTriangle. There is a simple trick to make this work properly. Look closely at the test run of drawInvertedTriangle to determine the trick.
Sample Runs:
1. Rectangle
2. Square
3. Draw Equilateral Triangle
4. Draw Inverted Triangle
5. Diamond
9. Pick new draw symbol
0. Quit
1
Height of the rectangle: 5
Width of the rectangle: 7
* * * * * * *
* * * * * * *
* * * * * * *
* * * * * * *
* * * * * * *
1. Rectangle
2. Square
3. Draw Equilateral Triangle
4. Draw Inverted Triangle
5. Diamond
9. Pick new draw symbol
0. Quit
2
Width of the square: 6
* * * * * *
* * * * * *
* * * * * *
* * * * * *
* * * * * *
* * * * * *
1. Rectangle
2. Square
3. Draw Equilateral Triangle
4. Draw Inverted Triangle
5. Diamond
9. Pick new draw symbol
0. Quit
9
Which symbol would you like to use? @
1. Rectangle
2. Square
3. Draw Equilateral Triangle
4. Draw Inverted Triangle
5. Diamond
9. Pick new draw symbol
0. Quit
3
Base of the equilateral triangle: 5
@
@ @
@ @ @
@ @ @ @
@ @ @ @ @
1. Rectangle
2. Square
3. Draw Equilateral Triangle
4. Draw Inverted Triangle
5. Diamond
9. Pick new draw symbol
0. Quit
4
Base of the inverted triangle: 4
@ @ @ @
@ @ @
@ @
@
1. Rectangle
2. Square
3. Draw Equilateral Triangle
4. Draw Inverted Triangle
5. Diamond
9. Pick new draw symbol
0. Quit
5
Width of the diamond: 7
@
@ @
@ @ @
@ @ @ @
@ @ @ @ @
@ @ @ @ @ @
@ @ @ @ @ @ @
@ @ @ @ @ @
@ @ @ @ @
@ @ @ @
@ @ @
@ @
@
1. Rectangle
2. Square
3. Draw Equilateral Triangle
4. Draw Inverted Triangle
5. Diamond
9. Pick new draw symbol
0. Quit
6
Invalid menu choice
1. Rectangle
2. Square
3. Draw Equilateral Triangle
4. Draw Inverted Triangle
5. Diamond
9. Pick new draw symbol
0. Quit
0
Logging you out
Here\'s a better look for the two triangles and diamond:
Solution
#include <iostream>
using namespace std;
void drawRectangle(int,char);
void drawEquiTriangle(int,char);
void drawInvertTriangle(int,char);
void drawLine (int,int,char);
void drawDiamond (int,char);
void drawTriangle(char);
void drawRectangle(int,int,char);
void displayMenu();
int main() {
char s;
int c,h,w;
cout << \"Which symbol would you like to use? \";
cin >> s;
int flag = 1;
while(flag){
displayMenu();
cin >> c;
switch(c){
case 1:
cout << \"Height:\";
cin >> h;
cout << \"Width:\";
cin >> w;
drawRectangle(h,w,s);
break;
case 2:
cout << \"Side:\";
cin >> h;
drawRectangle(h,s);
break;
case 3:
cout << \"Base:\";
cin >> h;
drawEquiTriangle(h,s);
break;
case 4:
cout << \"Base:\";
cin >> h;
drawInvertTriangle(h,s);
break;
case 5:
cout << \"Width:\";
cin>>w;
drawDiamond(w,s);
break;
case 9:
cout << \"Enter Symbol:\";
cin >> s;
break;
case 0:
flag = 0;
}
}
return 0;
}
void displayMenu(){
cout << \"1. Rectangle\ 2. Square\ 3. Draw Equilateral Triangle\ 4. Draw Inverted Triangle\ 5. Diamond\ 9. Pick new draw symbol\ 0. Quit\"<<endl;
}
// prints a rectangle using sym character.
void drawRectangle(int n,char sym){
int i,j;
for(i=0;i<n;i++){
for(j=0;j<n;j++){
cout << sym << \" \";
}
cout<< endl;
}
}
void drawRectangle(int h,int w,char sym){
int i,j;
for(i=0;i<h;i++){
for(j=0;j<w;j++){
cout << sym << \" \";
}
cout<< endl;
}
}
void drawLine (int blanks,int numPen,char pen){
int i;
for(i=0;i<numPen;i++){
cout << pen << \" \";
}
cout << endl;
}
void drawEquiTriangle(int rows, char s){
int i, j;
for(i=1; i<=rows; ++i)
{
for(j=1; j<=i; ++j)
{
cout << s << \" \";
}
cout << endl;
}
}
void drawInvertTriangle(int rows,char s){
int i, j;
for(i=rows; i>=1; --i)
{
for(j=1; j<=i; ++j)
{
cout << s << \" \";
}
cout << endl;
}
}
void drawDiamond(int rows,char s){
drawEquiTriangle(rows-1,s);
drawLine(1,rows,s);
drawInvertTriangle(rows-1,s);
}
/* sample output
*/
