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Cohen Sutherland algorithm

noreply@blogger.com (Dayal) — Tue, 30 Aug 2011 12:36:00 +0000

The cohen Sutherland algorithm can be implemented with the help of the following program.

#include

#include

#include

#include

#include

typedef struct coord

{

int x,y;

char code[4];

}PT;

void drawwindow();

void drawline(PT p1,PT p2,int c1);

PT setcode(PT p);

int visibility(PT p1,PT p2);

PT resetendpt(PT p1,PT p2);

void main()

{

int gd=DETECT,gm,v;

PT p1,p2,ptemp;

initgraph(&gd,&gm,"");

cleardevice();

printf("\t\tCOHEN-SUTHERLAND LINE CLIPPING ALGORITHM");

printf("\nEnter the two end points p1(x,y)");

scanf("%d%d",&p1.x,&p1.y);

printf("Enter the two end points p2(x,y):");

scanf("%d%d",&p2.x,&p2.y);

cleardevice();

printf("\t\tCLIPPING WINDOW");

drawwindow();

getch();

printf("\tCOHEN-SUTHERLAND LINE CLIPPING ALGORITHM");

printf("\n\t\tBEFORE CLIPPING");

drawline(p1,p2,4);

getch();

p1=setcode(p1);

p2=setcode(p2);

v=visibility(p1,p2);

switch(v)

{

case 0:

cleardevice();

//printf("\t\tCLIPPING WINDOW");

drawwindow();

drawline(p1,p2,15);

break;

case 1:

cleardevice();

drawwindow();

break;

case 2:

cleardevice();

p1=resetendpt(p1,p2);

p2=resetendpt(p2,p1);

drawwindow();

printf("\tCOHEN-SUTHERLAND LINE CLIPPING ALGORITHM");

printf("\n\t\tAFTER CLIPPING");

drawline(p1,p2,15);

break;

}

getch();

closegraph();

//return(0);

}

void drawwindow()

{

setcolor(RED);

setlinestyle(DOTTED_LINE, 1, 1);

line(150,100,100,100);

line(150,100,150,50);

line(450,100,500,100);

line(450,100,450,50);

line(450,350,500,350);

line(450,350,450,400);

line(150,350,150,400);

line(150,350,100,350) ;

line(150,100,100,100);

line(150,100,150,50);

setlinestyle(SOLID_LINE, 1, 1);

line(150,100,450,100);

line(450,100,450,350);

line(450,350,150,350);

line(150,350,150,100);

outtextxy(450,30,"1001");

outtextxy(470,200,"1000");

outtextxy(470,370,"1010");

outtextxy(300,370,"0010");

outtextxy(120,370,"0110");

outtextxy(120,200,"0100");

outtextxy(120,30,"0101");

outtextxy(300,30,"0001");

outtextxy(300,200,"0000");

}

void drawline(PT p1,PT p2,int c1)

{

setcolor(c1);

line(p1.x,p1.y,p2.x,p2.y);

}

PT setcode(PT p)

{

PT ptemp;

if(p.y<100)

ptemp.code[0]='1';

else

ptemp.code[0]='0';

if(p.y>350)

ptemp.code[1]='1';

else

ptemp.code[1]='0';

if(p.x>200)

ptemp.code[2]='1';

else

ptemp.code[2]='0';

if(p.x<150)

ptemp.code[3]='1';

else

ptemp.code[3]='0';

ptemp.x=p.x;

ptemp.y=p.y;

return(ptemp);

}

int visibility(PT p1,PT p2)

{

int i,flag=0;

for(i=0;i<4;i++)

{

if((p1.code[i]!='0')||(p2.code[i]!='0'))

flag=1;

}

if(flag==0)

return(0);

for(i=0;i<4;i++)

{

if((p1.code[i]==p2.code[i])&&(p1.code[i]=='1'))

flag=0;

}

if(flag==0)

return(1);

return(2);

}

PT resetendpt(PT p1,PT p2)

{

PT temp;

int x,y,i;

float m,k;

if(p1.code[3]=='1')

x=150;

if(p1.code[2]=='1')

x=450;

if((p1.code[3]=='1')||(p1.code[2]=='1'))

{

m=(float)(p2.y-p1.y)/(p2.x-p1.x);

k=(p1.y+(m*(x-p1.x)));

temp.y=k;

temp.x=x;

for(i=0;i<4;i++)

{

temp.code[i]=p1.code[i];

if(temp.y<=350 && temp.y>=100)

return(temp);

}

if(p1.code[0]=='1')

y=100;

if(p1.code[1]=='1')

y=350;

if((p1.code[0]=='1')||(p1.code[1]=='1'))

{

m=(float)(p2.y-p1.y)/(p2.x-p1.x);

k=(float)p1.x+(float)(y-p1.y)/m;

temp.y=y;

temp.x=k;

for(i=0;i<4;i++)

temp.code[i]=p1.code[i];

return(temp);

}

}

else

return(p1);

return(p2);

}

2-D transformations in computer graphics

noreply@blogger.com (Dayal) — Tue, 30 Aug 2011 12:34:00 +0000

The basic 2-d transformations in computer graphics such as translation,rotation,scaling,shearing,scaling,reflection can be implemented in C with the help of the following program.

#include

#include

#include

#include

#include

#include

void menu();

void input();

void output();

void translation();

void rotation();

void scaling();

void shearing();

void reflection();

	int a[10][2],i,x,option,temp,angle,tx,ty,fx,fy,sh,k,n,axis,y;

	float sx,sy;



void menu()

{

		printf("menu\n");

		printf("1.Translation\n");

		printf("2.rotation\n");

		printf("3.scaling\n");

		printf("4.shearing\n");

		printf("5.reflection\n");

		printf("6.exit\n");

		printf("enter the choice:");

		scanf("%d",&option);

		switch(option)

		{

			case  1:

				input();

				translation();

				break;

			case 2:

				input();

				rotation();

				break;

			case 3:

				input();

				scaling();

				break;



			case 4 :

				input();

				shearing();

				break;

			case 5:

				input();

				reflection();

				break;

			case 6:

				exit(0);

				break;

		}

}



void input()

{

		printf("enter the number of vertices:" );

		scanf("%d",&n);

		for(i=0;i

Getting Started With Open Source aka Linux

noreply@blogger.com (Dayal) — Mon, 04 Jul 2011 17:38:00 +0000

Windows has made Engineers Dummy, especially Computer Science Engineers. For a Windows Geek using GUI and menus it must surely be an hard time getting used with the Terminal and Shell of the *nix platforms. Believe me the Unix Terminal/Shell is the best command line tool that any Operating system could have. Initially it will be little bit difficult to migrate from the menus to the commands, but once you get used with it, you will love to spend much more time with than with Your Girl Friend.

As far as now, Get used up with some linux jargon and some open source tools installation available in this manual.

Kudos to the Anna University Foss Group :-)

Object Oriented analysis and Design Case Studies Collection and lab manuals

noreply@blogger.com (Dayal) — Fri, 24 Dec 2010 19:20:00 +0000

Download

Rational Rose Enterprise Edition 7.7.0204.300

noreply@blogger.com (Dayal) — Fri, 24 Dec 2010 19:07:00 +0000

Download Torrent

[b]IBM« Rational« Rose« Enterprise provides a common modeling language for enabling faster creation of quality software[/b]

It offers a modeling environment that supports code generation from models in Ada, ANSI C++, C++, CORBA, Java?/J2EE?, Visual C++« and Visual Basic«.

* Includes Unified Modeling Language? (UML?) support and is one of the most comprehensive products in the Rational Rose family
* Supports Analysis, ANSI C++, Rose J and Visual C++ patterns, Enterprise JavaBeans? 2.0, and forward and/or reverse engineering for some of the most common Java 1.5 constructs
* Offers code quality analysis abilities and code generation, with configurable model-to-code synchronization capabilities, as well as more granular management and use of models with the separately controllable model components feature
* Integrates with other IBM Rational lifecycle development tools as well as any SCC-compliant version control system, including IBM Rational ClearCase«
* Includes a Web Modeling Add-In, which provides visualization, modeling and tools for developing Web applications
* ? Provides UML modeling for database designs, with the ability to represent the integration of data and application requirements through logical and physical designs
* Creates XML document type definitions (DTD) for use in your application
* Operating systems supported: Windows


[b]System Requiriments[/b]
[b][i]Operating Systems:[/i][/b] Windows 98 SE, Windows ME, Windows NT 4.0 - Service Pack 6, Windows 2000 - Service Pack 1, Windows XP Professional, Windows XP

[b][i]Hardware Requirements:[/i][/b] Pentium-based 300 MHz minimum, 600 MHz recommended, PC-compatible computer system
128 MB memory minimum, 256 MB memory recommended
[u]Note:[/u] Memory requirements increase with the size of the Rose model. 
500 MB disk space (230 to run Rose, 270 to download/install) 


[b][i][u]Install notes[/u][/i][/b]
1) Run the setup, and choose install before licensing.
2) Put rational_server_perm.dat in C:Program FilesRationalCommon (or wherever you installed)
3) Enjoy!

Alfred V. Aho, Ravi Sethi Jeffrey D. Ullman, “Compilers- Principles, Techniques, and Tools”, Pearson Education Asia, 2007.

noreply@blogger.com (Dayal) — Tue, 14 Dec 2010 14:35:00 +0000

Download Link

Craig Larman,"Applying UML and Patterns: An Introduction to object-oriented Analysis and Design and iterative development”, Third Edition, Pearson Education, 2005

noreply@blogger.com (Dayal) — Tue, 14 Dec 2010 14:33:00 +0000

Download Link

John L. Hennessey and David A. Patterson, “ Computer architecture – A quantitative approach”, Morgan Kaufmann / Elsevier Publishers, 4th. edition, 2007.

noreply@blogger.com (Dayal) — Tue, 14 Dec 2010 14:30:00 +0000

Download Torrent

S. Russel and P. Norvig, “Artificial Intelligence – A Modern Approach”, Second Edition, Pearson Education, 2003.

noreply@blogger.com (Dayal) — Tue, 14 Dec 2010 14:28:00 +0000

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Implementation of Single Pass Macro Processor

noreply@blogger.com (Dayal) — Mon, 27 Sep 2010 14:07:00 +0000

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Developing a simple OPAC system for library using even-driven and concurrent programming paradigms of Java. JDBC is used to connect to a back-end database.

noreply@blogger.com (Dayal) — Mon, 27 Sep 2010 13:10:00 +0000

Setting up ODBC

Now that you have the ODBC control panel applet open, you should be presented with the following information:

Next you have to add a data source that the JDBC-ODBC Bridge driver can open.
To do so, click add.
The following dialog will now appear:

Make sure you select “Microsoft Access Driver” as shown above and click finish.
In the next screen enter a name for your data source – this is the name you will use in your Java code to open your database. Also enter a description. Use the “Select” button to browse for your database on your PC.
Below is what you should now have:

Click Ok. Your database will now be in the list of data sources: * Note the We have used the Data Source Name as "custo" and Database name as "custo" in our source code provide. The table name is "stu"

Here Goes your code

Download Source code and Database Files

Implementation of Echo server and Client in java

noreply@blogger.com (Dayal) — Sat, 18 Sep 2010 13:55:00 +0000

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Implementation of Pass2 of a linking loader

noreply@blogger.com (Dayal) — Sat, 18 Sep 2010 13:55:00 +0000

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Behrouz A. Forouzan, “Data communication and Networking”, Tata McGraw-Hill, 2004.

noreply@blogger.com (Dayal) — Thu, 16 Sep 2010 12:49:00 +0000

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Implementation of a relocation loader

noreply@blogger.com (Dayal) — Tue, 07 Sep 2010 13:47:00 +0000

Download code

Implementation of a Absolute Loader

noreply@blogger.com (Dayal) — Tue, 07 Sep 2010 13:45:00 +0000

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Program Using Multi threading in Java to generate Prime Fibonacci Series

noreply@blogger.com (Dayal) — Sun, 05 Sep 2010 13:20:00 +0000

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Programs using RPC - Adding two numbers

noreply@blogger.com (Dayal) — Fri, 03 Sep 2010 14:26:00 +0000

I request my followers to read the information in this link before trying to execute this program.

http://www.krzyzanowski.org/rutgers/hw/rpc/index.html
Download Source Code
Download Execution procedure

Facebook popularity growing but privacy still a worry: Experts

noreply@blogger.com (Dayal) — Sun, 29 Aug 2010 13:16:00 +0000

NEW DELHI: More and more Indians might be hooked to social networking site Facebook, but experts feel that privacy issues still remain a concern since users face the vulnerability of their personal data getting hacked.

According to experts and publicly available information, users' privacy is not fully protected while using many of the applications available on Facebook.

Facebook applications have potential privacy issues and when a user signs up for an application, they are in essence allowing the developer to access all of their information and their friends' information, they said.

Rahul Chaudhry, partner at intellectual property law firm Lall Lahiri & Salhotra said that although Facebook is a great way of being connected, the site also brings several potential privacy issues which the user must be aware of.

"Your basic information, pictures, notes, local hard drive, the posts that one likes are vulnerable of becoming public," Chaudhry told media.

"A users' profile pictures would be available on websites liked by clicking Facebook 'like' application. The pictures can also be downloaded by the person one is allowing to view them. Your local drive/information becomes accessible to third parties," he noted.

Moreover, the users profile pictures and names would always be available on the internet. Last month, in an effort to highlight the privacy issues involved with the website globally, a security consultant had published personal details of 100 million Facebook users on the internet. Earlier this year, Facebook had faced public ire over the complexity of its privacy settings, following which the site had rolled out simplified privacy controls.

"Privacy setting can be edited to hide the information from 'everyone' to 'friends of friends', only friends, customised etc, but the risk still remains," Chaudhry added.

Depicting the fast growing popularity of the website, Facebook has beaten competitors like Orkut and Yahoo! to become the top social networking site in India with 20.9 million visitors in July this year, as per the report by research firm comScore.

Another legal expert said that the loopholes in privacy could make a user vulnerable to cyber criminals and hackers.

The user has to be aware of protecting himself and his personal data as, "Facebook has completely absolved itself of any liabilities as it has expressly stated in their terms of agreement importance of account settings and that applications developed by third parties are not created by it." "And Facebook has stated that it does not have the ability to control such applications or remove any infringing content from them," he said.

source: economictimes.indiatimes.com

Pass 1 of a Linking Loader

noreply@blogger.com (Dayal) — Sat, 28 Aug 2010 18:15:00 +0000

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Input File

Scientific Calculator Using Event Driven Programming in Java

noreply@blogger.com (Dayal) — Sun, 22 Aug 2010 18:42:00 +0000

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Anna University JAVA lab programs collection - Part 1

noreply@blogger.com (Dayal) — Fri, 20 Aug 2010 13:21:00 +0000

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Program using Object serialization in Java

noreply@blogger.com (Dayal) — Wed, 18 Aug 2010 14:27:00 +0000

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Single Pass assembler in c

noreply@blogger.com (Dayal) — Mon, 16 Aug 2010 12:35:00 +0000

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Program Using Raw Sockets(capturing and sniffing UDP packets)

noreply@blogger.com (Dayal) — Sat, 14 Aug 2010 14:41:00 +0000

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