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Sunday, April 27, 2025

Create OpenGL CG Projects on Networking Data Communication

We have developed Selective Repeat ARQ a networking based Create OpenGL CG Projects with C/C++. In this post we are going to create new networking based project. As well aware of Internet which help us communicate through various means including mail, chat and social media. We are going to create OpenGL Project on Networking Data Communication. Let's get started with some basics information. 

Abstract - 


Our Aim is to Create, design and the illustrate the concepts and usage of Data Communication over Internet Using OpenGL C/C++. The Communication between two devices begins with a message/information of which one send the message and other receive it. The first device is called source, or sender while the second device i is the destination/receiver, of the message. The destination receives the message and interprets it. Another element involved in the process is called channel, which consists of the media that provides the pathway over which the message can travel from source to destination.


This program is implemented using various OpenGL functions which are shown below

Various functions used in this program.
  • glutInit() : interaction between the windowing system and OPENGL is initiated
  • glutInitDisplayMode() : used when double buffering is required and depth information is required
  • glutCreateWindow() : this opens the OPENGL window and displays the title at top of the window
  • glutInitWindowSize() : specifies the size of the window
  • glutInitWindowPosition() : specifies the position of the window in screen co-ordinates
  • glutKeyboardFunc() : handles normal ASCII symbols
  • glutSpecialFunc() : handles special keyboard keys
  • glutReshapeFunc() : sets up the callback function for reshaping the window
  • glutIdleFunc() : this handles the processing of the background
  • glutDisplayFunc() : this handles redrawing of the window
  • glutMainLoop() : this starts the main loop, it never returns
  • glViewport() : used to set up the viewport
  • glVertex3fv() : used to set up the points or vertices in three dimensions
  • glColor3fv() : used to render color to faces
  • glFlush() : used to flush the pipeline
  • glutPostRedisplay() : used to trigger an automatic redrawal of the object
  • glMatrixMode() : used to set up the required mode of the matrix
  • glLoadIdentity() : used to load or initialize to the identity matrix
  • glTranslatef() : used to translate or move the rotation centre from one point to another in three dimensions
  • glRotatef() : used to rotate an object through a specified rotation angle

Interactions

Interaction with program We can have an interaction with this project using popular input device like mouse and key board are used to interact with this program. Some keys of key board have specific function, we mentioned them below,
  1. ‘s/S’ - Start
  2. ‘n/N’ – Network
  3. ‘a/A’ – About Project
With these above mentioned keys, we can interact with the program. Also we can interact with this program by using mouse (input device), By click on right and left button On right click of mouse menu will occur. Select the option by left click of mouse.




#include
#include
#include
#include
#include
#include 
static double x=0.0,x1=-3.0,x2=3.0,y1=0.0,y2=0;
static double x8=-4.0,x9=4.0,y8=1.0,y9=1;
static double move=-60;
static bool pca2pcb=false,pca2rt=false,rt2pca=false, pcb2pca=false, local=false,
dubai=false;
void P();
void d();
void *font;
void *currentfont;
void setFont(void *font)
{
currentfont=font;
}
void drawstring(float x,float y,float z,char *string)
{
char *c;
glRasterPos3f(x,y,z);
for(c=string;*c!='\0';c++)
{ glColor3f(0.0,1.0,1.0);
glutBitmapCharacter(currentfont,*c);
}
}
void stroke_output(GLfloat x, GLfloat y, char *format,...)
{ va_list args;
char buffer[200], *p;
va_start(args, format);
vsprintf(buffer, format, args);
va_end(args);
glPushMatrix();
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glTranslatef(-2.5, y, 0);
glScaled(0.003, 0.005, 0.005);
for (p = buffer; *p; p++)
glutStrokeCharacter(GLUT_STROKE_ROMAN, *p);
glPopMatrix();
}
//Windows
void window(float x4, float y4)
{
glLoadIdentity();
glColor3f(1.0,1.5,0.5);
glTranslatef(0.0f,0.0f,-11.0f);
for(float j=-2;j<1 .5="" 12="" change="" color="" communication="" computer="" computers="" condition="" data="" dept.="" engineering.="" f="" float="" for="" glcolor3f="" glloadidentity="" glpopmatrix="" glpushmatrix="" glrotatef="" glscaled="" gltranslatef="" glutsolidcube="" glutsolidtorus="" i="" if="" indows="" internet="" j="" of="" ondition="" outer="" over="" pc="" pca="" pcb2pca="" pcb="" router="" science="" to="" void="" window1="" x5="" x6="" x7="=5)" x9="" y5="" y6="" y7="" z7="">=-5 && x9<=-4 && x7==-5)
glColor3f(1,0,0);
glScaled(.7,.7,0);
glRotatef(95,1.0f,0.0f,0.0f);
glTranslatef(x7,y7,z7);
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glutSolidCube(.85);
glPopMatrix();
glPopMatrix();
}
//PC
void cpu(float x7, float y7, float z7)
{ glLoadIdentity();
glColor3f(0.5,0.5,.5);
glTranslatef(0.0f,0.0f,-13.0f);
glPushMatrix();
glPushMatrix();
glScaled(1,.3,0);
glRotatef(95,1.0f,0.0f,0.0f);
glTranslatef(x7,y7,z7);
glutSolidCube(1);
glPopMatrix();
glPushMatrix();
glColor3f(1,1,1);
glScaled(1,.3,0);
glRotatef(95,1.0f,0.0f,0.0f);
glTranslatef(x7,y7,z7);
glutSolidCube(.4);
glPopMatrix();
glPopMatrix();
}
//Draw LAN/WAN
void lan(double x8,double y8)
{
glClearColor(0.6,0.5,.5,0.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0.0f,0.0f,-13.0f);
router(0,-1);
//Data Media (connected to Router)
glPushMatrix();
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glTranslatef(0.0,1.0,-2.0);
glScaled(0.1,5.0,0.1);
glColor3f(1,1,1);
glutWireCube(1.5);
glPopMatrix();
glPushMatrix();
glTranslatef(0.0,0.0,-2.0);
glScaled(5.1,0.1,0.1);
glColor3f(1,1,1);
glutWireCube(1.5);
glPopMatrix();
glPushMatrix();
glTranslatef(0.0,0.0,-2.0);
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0,0,0);
drawstring(1,3.5,-1.0,"ROUTER");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0,0,0);
drawstring(-4.6,.5,-1.0,"PC-A");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0,0,0);
drawstring(-.5,.5,-1.0,"SWITCH");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0,0,0);
drawstring(4,.5,-1.0,"PC-B");
glPopMatrix();
//Data Transfer
if(pca2pcb){
// data
glPushMatrix();
glTranslatef(x8,y8,-2.0);
glScaled(0.1,0.1,0.1);
glColor3f(x8,0,1);
glutSolidCube(1);
glPopMatrix();
if(x8>=4){
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pcb2pca=true;
pca2pcb=false;
} }
//Ack
if(pcb2pca){
glPushMatrix();
glTranslatef(x8,y8,-2.0);
glScaled(0.1,0.1,0.1);
glColor3f(x8,0,1);
glutSolidCube(1);
glPopMatrix();
}
if(pca2rt)
{
glPushMatrix();
glTranslatef(x8,y8,-2.0);
glScaled(0.1,0.1,0.1);
glColor3f(x8,0,1);
glutSolidCube(1);
glPopMatrix();
}
// move the packet out of LAN
if(pca2rt && rt2pca==false && y8>=6)
{
glutIdleFunc(P);
}
//switch
glPushMatrix();
glColor3f(0.5,0.5,1.5);
glTranslatef(0.0,0,1.0);
glRotatef(15,1.0f,0.0f,0.0f);
glScaled(1.2,0.2,1.0);
glutSolidCube(1);
glPopMatrix();
pc(-5,1,0);
cpu(-3.5,7,1.5);
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pc(5,1,0);
cpu(3.5,7,1.5);
pc(0,20,2);
cpu(0,105,1.5);
glFlush();
glutSwapBuffers();
}
// Draw Network
void network(double ang,double x1,double x2,double y1,double y2)
{
glClearColor(0.0,0.85,1,0.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0.0f,0.0f,-13.0f);
glBegin(GL_POLYGON);
glColor3f(0.0,1.8,0.0);
glVertex2f(-10,0);
glVertex2f(10,0);
glVertex2f(-10,-10);
glVertex2f(-10,10);
glEnd();
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0,0,0);
drawstring(-4.2,2.65,0.0,"LOCAL BUILDING");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0,0,0);
drawstring(-1.5,3.2,0.0,"EARTH Connected with Fibric Wires");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0,0,0);
drawstring(2.5,2.65,0.0,"DUBAI BUILDING");
//Earth
glPushMatrix();
glColor3f(0.5,0.5,1.5);
glScaled(0.8,1,0.8);
glTranslatef(0.0,2.2,0.0);
glRotatef(ang,0.0f,-1.0f,0.0f);
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glutSolidSphere(1,20,20);
glPopMatrix();
//Building A
glLoadIdentity();
glTranslatef(0.0f,0.0f,-12.0f);
glPushMatrix();
glTranslatef(-3,-0.5,0.0);
glScaled(0.8,2.2,0.8);
glutSolidCube(1.8);
glPopMatrix();
window(-2.6, 1);
//Building B
glLoadIdentity();
glTranslatef(0.0f,0.0f,-12.0f);
glPushMatrix();
glTranslatef(3,-0.5,0.0);
glScaled(0.8,2.2,0.8);
glutSolidCube(1.8);
glPopMatrix();
window1(3.3, 1);
// Line 1
glPushMatrix();
glTranslatef(-3.0,1.0,-2.0);
glScaled(0.1,3.0,0.1);
glColor3f(1,1,1);
glutWireCube(1);
glPopMatrix();
glPushMatrix();
glTranslatef(-1.45,2.4,-2.0);
glScaled(3.0,0.2,0.1);
glColor3f(1,1,1);
glutWireCube(1);
glPopMatrix();
//Line 2
glPushMatrix();
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glTranslatef(3.0,1.0,-2.0);
glScaled(0.1,3.0,0.1);
glColor3f(1,1,1);
glutWireCube(1);
glPopMatrix();
glPushMatrix();
glTranslatef(1.45,2.4,-2.0);
glScaled(3.0,0.2,0.1);
glColor3f(1,1,1);
glutWireCube(1);
glPopMatrix();
// Transmission of Datapackets
glPushMatrix();
// Send Packets
if(local){
if(x1==-3 && y1<=2.38)
glTranslatef(-3,y1,-2.0);
if(y1>=2.38 && x1<=3)
glTranslatef(x1,2.38,-2.0);
if(x1>=3 && y1>=0)
glTranslatef(3,y1,-2.0);
if(x1>=3 && y1<=0.0)
{
dubai=true;
local=false;
} }
// Ack packets
if(dubai)
{
if(x2>=3 && y2<=2.38)
glTranslatef(3,y2,-2.0);
if(y2>=2.38 && x2>=-3)
glTranslatef(x2,2.38,-2.0);
if(x2<=-3 && y2>=0.0)
glTranslatef(-3,y2,-2.0);
if(x2<=-3 && y2<=0.0)
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{
dubai=false;
local=true;
rt2pca=true;
x8=0;
y8=6;
glutIdleFunc(d);
} }
glScaled(0.1,0.1,0.1);
glColor3f(1,1,1);
glutSolidCube(1);
glPopMatrix();
glFlush();
glutSwapBuffers();
}
void building(double ang)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0.0f,0.0f,-13.0f);
glPushMatrix();
glScaled(0.3,1.5,0.3);
glRotatef(90,1.0f,0.0f,0.0f);
glTranslatef(8.5,0,-0.5);
glutSolidTorus(0.2,1.0,40,40);
glPopMatrix();
glFlush();
glutSwapBuffers();
}
void about()
{
glClearColor(0.0,0.85,1,0.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0.0f,0.0f,-13.0f);
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
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glColor3f(0,0,0);
drawstring(-4.2,2,0.0,"About Data Communication");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0,0,0);
drawstring(-3.5,1.5,0.0,"1. Data Communications refers to the exchange of
data between two devices via some");
glColor3f(0,0,0);
drawstring(-3.5,1,0.0," form of transmission medium such as a wire
cable.");
glColor3f(0,0,0);
drawstring(-3.5,.5,0.0,"2. Similarly data and information from one computer
system can be transmitted to");
glColor3f(0,0,0);
drawstring(-3.5,0.0,0.0," other systems across geographical areas.");
glColor3f(0,0,0);
drawstring(-3.5,-0.5,0.0,"3. Thus data transmission is the movement of
information using some standard methods.");
glColor3f(0,0,0);
drawstring(-3.5,-1,0.0,"4. The effectiveness of a data communications
system depends on");
glColor3f(0,0,0);
drawstring(-3.5,-1.5,0.0," four fundamental characteristics: delivery,
accuracy, timeliness, and jitter.");
glColor3f(0,0,0);
drawstring(-3.5,-2,0.0,"5. A network is two or more devices connected
through links.");
glColor3f(0,0,0);
drawstring(-3.5,-2.5,0.0,"6. A link is a communications pathway that
transfers data from one device to another.");
glColor3f(0,0,0);
drawstring(-3.5,-3,0.0,"7. Type of Connection : Point-to-Point &
Multipoint.");
glFlush();
glutSwapBuffers();
}
void s()
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{
lan(-4,1);
}
void n()
{
x-=0.07;
network(x,0,0,0,0);
}
void P()
{
if(local)
{
if(x1==-3 && y1<=2.38){
y1+=0.01;
}
if(y1>=2.38 && x1<=3.0)
{ x1+=0.01;
}
if(x1>=3 && y1>=0.0){
y1-=0.01;
}
x+= .07;
network(x,x1,x2,y1,y2);
}
//Dubai to local
if(dubai)
{
if(x2>=3 && y2<=2.38)
y2+=0.01;
if(y2>=2.38 && x2>=-3)
x2-=0.01;
if(x2<=-3 && y2>=0.0)
y2-=0.01;
x+= .07;
network(x,x1,x2,y1,y2);
} }
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void d()
{
if(pca2pcb)
{ if(x8>=-4 && x8<=4){
x8+=0.01;
}
lan(x8,0);
}
if(pcb2pca)
{
if(x9<=4 && x9>=-4){
x9-=0.01;
}
lan(x9,0);
}
// To Dubai
if(pca2rt & rt2pca==false)
{
if(x8>=-4 && y8<=6){
if(x8<=0)
{x8+=0.01;
}
if(x8>=0 && y8<=6)
{
y8+=0.01;
}
}
lan(x8,y8);
}
if(rt2pca)
{
if(x8<=0 && y8<=6){
if(y8>=0)
{y8-=0.01;
}
if(x8>=-4 && y8<=0)
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{
x8-=0.01;
} }
lan(x8,y8);
} }
void doInit()
{
/* Background and foreground color */
glClearColor(0.0,0.0,0.0,0);
glViewport(0,0,640,480);
/* Select the projection matrix and reset it then
setup our view perspective */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(30.0f,(GLfloat)640/(GLfloat)480,0.1f,200.0f);
/* Select the modelview matrix, which we alter with rotatef() */
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glClearDepth(2.0f);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
}
void display()
{
glClearColor(0.1,0.1,0.5,0.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0.0f,0.0f,-13.0f);
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(3.0,1.0,1.0);
drawstring(-1.5,3.0,0.0,"DEPARTMENT OF COMPUTER SCIENCE");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0.0,1.0,1.0);
drawstring(-3.0,2.5,0.0,"Computer Graphics Mini Project on DATA
COMMUNICATION IN NETWORK");
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setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0.0,1.0,1.0);
drawstring(-1,2,0,"Using OPENGL");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0.0,1.0,1.0);
drawstring(-0.5,1.5,0,"By");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0.0,1.0,1.0);
drawstring(-2,1,0,"BUSHRA JABEEN (USN : 3KB10CS022)");
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glColor3f(0.0,1.0,1.0);
drawstring(-2,.5,0,"BUSHRA SULTANA (USN : 3KB10CS023)");
stroke_output(-2.0, -1, "s --> Start");
stroke_output(-2.0, -1.75, "A --> About");
stroke_output(-2.0, -3,"q --> Quit");
GLfloat mat_ambient[]={0.0f,1.0f,2.0f,1.0f};
GLfloat mat_diffuse[]={0.0f,1.5f,.5f,1.0f};
GLfloat mat_specular[]={5.0f,1.0f,1.0f,1.0f};
GLfloat mat_shininess[]={50.0f};
glMaterialfv(GL_FRONT,GL_AMBIENT,mat_ambient);
glMaterialfv(GL_FRONT,GL_DIFFUSE,mat_diffuse);
glMaterialfv(GL_FRONT,GL_SPECULAR,mat_specular);
glMaterialfv(GL_FRONT,GL_SHININESS,mat_shininess);
GLfloat lightIntensity[]={1.7f,1.7f,1.7f,1.0f};
GLfloat light_position3[]={0.0f,5.0f,5.0f,0.0f};
glLightfv(GL_LIGHT0,GL_POSITION,light_position3);
glLightfv(GL_LIGHT0,GL_DIFFUSE,lightIntensity);
glEnable(GL_COLOR_MATERIAL);
glFlush();
glutSwapBuffers();
}
void menu(int id)
{
switch(id)
{
case 1:glutIdleFunc(about);
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break;
case 2:glutIdleFunc(s);
break;
case 3:glutIdleFunc(d);
break;
case 4:glutIdleFunc(P);
break;
case 5:glutIdleFunc(n);
break;
case 6:
pca2pcb=true;
x8=-4;
glutIdleFunc(d);
break;
case 7:
local=true;
dubai=false;
pca2rt=true;
x8=-4.0;x9=4.0;y8=0.0; y9=0;
pca2pcb=false;
pcb2pca=false;
glutIdleFunc(d);
break;
case 8: pca2rt=false;
pca2pcb=false;
x8=-4.0;x9=4.0;y8=1.0; y9=0;
x=0.0;x1=-3.0;x2=3.0;y1=0.0;y2=2.38;
pca2pcb=false;pca2rt=false; pcb2pca=false;
glutIdleFunc(s);
break;
case 9:exit(0);
break;
}
glFlush();
glutSwapBuffers();
glutPostRedisplay();
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}
void mykey(unsigned char key,int x,int y)
{
if(key=='s')
{
glutIdleFunc(s);
}
if(key=='n')
{
glutIdleFunc(n);
}
if(key=='P')
{
glutIdleFunc(P);
}
if(key=='A')
{
glutIdleFunc(about);
}
if(key=='q'||key=='Q')
{
exit(0);
}
}
void main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB);
glutInitWindowSize(1000,480);
glutInitWindowPosition(0,0);
glutCreateWindow("Data Communication in Network");
glutDisplayFunc(display);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glShadeModel(GL_SMOOTH);
glEnable(GL_DEPTH_TEST);
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glEnable(GL_NORMALIZE);
glutKeyboardFunc(mykey);
glutCreateMenu(menu);
glutAddMenuEntry("About Project 'A'",1);
glutAddMenuEntry("Local Area Network(LAN) 's'",2);
glutAddMenuEntry("Local Area Network(LAN) 'n'",3);
glutAddMenuEntry("Wide Area Network(WAN) 'P'",5);
glutAddMenuEntry("Transfer data from PC-A to PC-B '1'",6);
glutAddMenuEntry("Transfer data from PC-A to Company B -->'2'",7);
glutAddMenuEntry("Reset 'r'",8);
glutAddMenuEntry("Quit 'q'",9);
glutAttachMenu(GLUT_RIGHT_BUTTON);
doInit();
glutMainLoop();
}


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