C/C++ :: How To Draw Rectangle Inside A Circle

Jul 5, 2013

Write a program using turbo c to draw a rectangle inside a circle..........

View 2 Replies


ADVERTISEMENT

C :: Creating PPM Image - Black Rectangle With A Circle

Mar 12, 2013

I'm trying to create a PPM image for a class assignment. A black rectangle with a circle at the point 225, 175 with a radius of 75. I have to use certain specific methods, so I can't use like Bresenham's really famous method for creating a circle.

The problem is that it compiles fine, and transfers to an image fine, but always says that I have a negative or zero image size.

Code:

#include "shapes.h"
int main () {
int i, j, x, y;

fprintf(stdout,"P6 width height 255
");

[Code] ....

And my header is:

Code:
#include <stdio.h>#include <math.h>
#define height 480
#define width 640
#define cy 175
#define cx 225
#define radius 75

The circle has to be filled in. I made it white. Also, i and j are unsused so far, so just ignore them.

View 1 Replies View Related

C++ :: Dialog Based Application - Draw Line Inside Picture Box

Feb 24, 2014

I create the dialog based application and draw the line inside the picture box. if line is drawn then display the msgbox, if not close the msg box and resize the window then the line is disappear and blank area is shown in picturbox.blem

View 3 Replies View Related

C++ :: Send Rectangle To A Function Which Takes A Rectangle Argument

May 13, 2014

Consider I have a rectangle like this:

Point p1(100,100);
Point p2(300,200);
Graph_lib::Rectangle r(p1,p2);

And also I have a function that takes a rectangle and returns a Point of that, say, top-left corner of that rectangle. For example:

Point N(Graph_lib::Rectangle R1);

My question is that, first, how to send that Rectangle r(p1,p2) to the Point N(Graph_lib::Rectangle R1) function? And then, how to return a Point from that function?

My IDE is visual studio 2012.

View 19 Replies View Related

C++ :: Moving In A Circle

Apr 15, 2014

I'm making this program to mess with people and make them think its a virus.

#define _WIN32_WINNT 0x0500 //For hiding your console
#include <cstdlib>
#include <iostream>
#include <Windows.h>
#include <WinBase.h>

[Code]....

At line 42 and 43 I want to make the cursor move around in a circle over and over again but I'm not sure how.

View 4 Replies View Related

C++ :: Calculate Area Of Circle Without Pi

Mar 22, 2013

I was given an assignment for class to calculate the area of a circle using only the radius as a user input and not using Pi in the code. I need to do this by calculating the areas of a series of rectangles under the curve and adding them together. Using nested loops to continuously reduce the size of these rectangles until the approximated area value is within a margin of error less than 0.1%.

Code:
#include<iostream>
#include<cmath>
using namespace std;
int main ()

[Code] .....

View 7 Replies View Related

C++ :: How To Find Each Pixel In The Circle

Jul 26, 2014

How can I find each and every pixel in a circle so that I can do some operations on it.

View 6 Replies View Related

C :: Printing A Circle In PPM Image

Oct 30, 2013

I'm supposed to print a small rectangle inside concentric circles that are inscribed in a rectangle.I'm not really sure where to start with printing a circle in a ppm file.

View 13 Replies View Related

C++ :: MFC Drawing Circle Instead Of Square

Mar 11, 2014

Found a good beginner's tutorial to learn Visual C++: [URL] ....

How to change the drawing so that instead of squares, the game draws circles. Can figure out that using Ellipse in the code results in circle outlines, but the fill remains as square color shapes.

The drawing code from the tutorial is below. How to substitute filled circles for filled squares.

Code:

// CSameGameView drawing
void CSameGameView::OnDraw(CDC* pDC){
// First get a pointer to the document
CSameGameDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if(!pDoc)

[Code] ....

View 6 Replies View Related

C++ :: Calculate Dimensions Of A Circle?

Jul 3, 2013

Code:

#ifndef CIRCLE_H
#define CIRCLE_H
class Circle {
public:
//constructors
Circle();
Circle(double r);

[code]....

The function isBigger() returns true (or false) if the radius of the Circle instance on which the function is invoked is bigger (or smaller) than the radius of the Circle instance passed to the function.: How to implement this function?

View 5 Replies View Related

C++ :: Creating Array Of Eight Circle Objects

Nov 4, 2013

Im supposed to create an to array of eight Circle objects initialized with the following radii: 2.5, 4.0, 1.0, 3.0, 6.0, 5.5, 3.5, 2.0. Then use a bubble sort to arrange the objects in ascending order of radius size before displaying the area of each object.

The error I get is "Cannot open include file: 'Circle.h': No such file or directory". Do I have to create a separate file for it?

#include <iostream>
#include <iomanip>
#include "Circle.h"
using namespace std;
class Circle {
public:
Circle()

[Code] ...

View 1 Replies View Related

C++ :: Circle Fill Color In - FLTK

Aug 28, 2014

I installed FLTK 1.3.X (from here [URL] ...) on my visual studio 2012 compiler and use PPP book for programming (this: [URL] ..... ). My problem is about filling a Shape in. For example , this code:

#include <Simple_window.h>
using namespace Graph_lib;
int main() {
Simple_window win(Point(100,100), 1000, 600, "Binary_tree");
Graph_lib::Circle c(Point(200,200),50);
c.set_color(Color::red);

[Code] ....

When I run the program, All three Shapes are drawn but only the Rectangle is filled in! Why?

set_color works for the three and apparently the set_fill_color is defined for all Shapes and it too should work but why it doesn't work for Circle and Ellipse?

This is the .CPP and .h files [URL] ....

View 3 Replies View Related

Visual C++ :: Radius And Centre Of Circle

Jan 22, 2014

I am drawing a circle using ellipse because there is no explicit command for this.

Code:
pDC->Ellipse(CRect(70, 170, 300, 400));

What is the centre of circle and what is radius in the above command?

View 2 Replies View Related

C :: Program That Calculates The Area And Circumference Of A Circle

Sep 27, 2014

I trying to write a program that calculates the area and circumference of a circle.

This is what I wrote so far.

Code:

#include <stdio.h>
void main()
{
int r;
int pi=3.14159265;
float cir,area;
printf("
enter the radius of the circle ");

[Code]...

the Problem is when I input the radius the answer I get is zero regardless of the the radius. Am I missing something?

View 4 Replies View Related

C/C++ :: Plotting Points On A Circle With One Fixed Axis

Oct 31, 2014

I am working on a computer program where I need to generate points on a circle. I am familiar with this kind of algorithm:

for(d=0; d<=2*pi; d+=0.01)
{
x = cos(d)*radius;
y = sin(d)*radius;
}

However, due to the specifics of the program I am writing, I need to iterate through a fixed number of points one at a time, like so:

for ( int x = 0; x < blockSize; x++ )
{
y = ???
}

This essentially "fixes" one axis of the circle, since I can't do: x=rx+sin(d)*r.

I have tried simply: "y = sin(d)*radius;" and I get a curved shape, but it's not a circle.

My question then is, how do I get the value of y in this situation, where the x axis is incrementing by 1 through a range of values? Is it mathematically possible?

View 6 Replies View Related

C/C++ :: Circle Paper Of Radius R - Max Cone Volume

Jan 23, 2014

My problem is the following : We have a circle paper of radius R. We will cut off a sector of this circle (with length rem_sec), and the remaining (bigger part) will create a cone. Radius of cone base is r.

I need to create a code that prompts the user to enter circle's radius R and the program will calculate the length of removed sector (rem_sec) so that the created cone has the Max Volume.

I wrote the following code, but it doesn't work. It displays both rem_sec and MaxV = 0.

#include <iostream>
#include <cmath>
#include <iomanip>
#include <conio.h>
using namespace std;
const double PI = 3.1415;
int main() {
double rem_sec;

[Code] ...

View 5 Replies View Related

C# :: How To Make A Planet That Moves In A Circle Motion

Dec 7, 2014

i would like to make a planet that moves in a circle motion. I dont know how to start and how i can move a "planet" in a circle motion?

View 2 Replies View Related

C/C++ :: Find Angle And Radius Of Given Point Of A Circle

Oct 7, 2013

Let (x,y) be the center of the circle. (x,y) will not be (0,0). I have radius of the circle. Now i want to find the angle and radius of the given point inside the circle.

View 2 Replies View Related

C++ :: Finding Pi Through Computing Area Of A Quarter Circle?

May 4, 2015

question: Finding pi through computing area of a quarter circle

my code

PHP Code:

#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
int main() {
    int sum=0;            
    double PI,h,x;            
 
[Code] .....

View 14 Replies View Related

C++ :: Create Array Of Eight Circle Objects Initialized With Radii

Nov 6, 2013

Im supposed to create an array of eight Circle objects initialized with the radii which is in the program. Also I must use bubble sort to arrange the objects is ascending order.

ERRORS:
'initializing' : cannot convert from 'double' to 'Circle'
'setRadius' : is not a member of 'Circle'
see declaration of 'Circle'
'findArea' : is not a member of 'Circle'
see declaration of 'Circle

#include "stdafx.h"
#include <iostream>
#include <iomanip>
using namespace std;
class Circle {

[Code] ....

View 1 Replies View Related

Visual C++ :: Drawing (radius Sized) Lines From Center To Boundary Of Circle

Feb 3, 2014

I am facing a programming logic problem. I want to draw radius sized lines from centre of circle to the circle boundary.

My code is:

int x1, y1, x2, y2, i, r, old_xc,old_yc, x,y;
int xc, yc;
x1=170;
y1=300;
x2=70;
y2=400;
pDC->Ellipse(x1,y1,x2,y2);

[Code] .....

The lines are touching the circle boudary at only start while the rest of lines are smaller and the shape is a triangle instead of a pie slice.

View 8 Replies View Related

C/C++ :: Put A Number In Rectangle?

Oct 4, 2014

the code draws rectangle or square it depends on you (column,row) then, put number in the center of the rectangle i don't want to extra space after putting one,two,three or four digits number in the center of the rectangle

#include <stdio.h>
int main(){
int i,j;

[Code]....

View 3 Replies View Related

C++ :: Algorithm To Roll A Rectangle

Sep 17, 2014

I'm trying to draw and pivot a rectangle. How to get the new coordinates if I turn it 90 degree for example?

From this:

To this:

This is not good because it will reduce it in size.

Code:
int size = 50;
if(b) // draw rectangle
{
POINT points[4] =
{{xCoord, yCoord},

[Code] ....

View 7 Replies View Related

C :: Printing A Rectangle Using For Loops?

Jan 27, 2015

I'm trying to make a program that prints a rectangle using "*" asterisks. I am only allowed to use "for loops" and I simply cannot get this to work properly. Here is my code so far...

Code:
int main(void)
{
//RectangleSize represents the area of the rectangle(width*length)
int length, width, RectangleSize;

[Code].....

View 5 Replies View Related

C++ :: How To Create A Rectangle With 3X5 Dimension

Nov 2, 2013

I am trying to create a rectangle with 3*5 dimension which would look like:

#####
#####
#####

I wanted to use for, and do while loop for that programming. I couldn't been able to create my desired dimension of 3*5.

//complier directives
#include<iostream>
#include<cstdlib>
using namespace std;
//main body
int main () {
//local identifiers
//complier directives

[Code] .....

View 5 Replies View Related

C++ :: Representing A Rectangle With Only 3 Variables Instead Of 4

Apr 6, 2013

how to use 3 variables to represent a rectangle in a grid instead of using 4. The traditional way is to use (x,y) (x2,y2). I propose using (x,l,h).In the traditional way as you probably know, (x,y) is the left op most corner, and (x2,y2) is the bottom right most corner. In the way I am proposing X is the left side, l is the length of the top side, and also the length of the bottom. 'h' is the height of the left and right. I think it's obvious how these three can define a rectangle same as the four.

View 2 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved