cs602 3 Computer Graphics assignment solution fall december 2011

Question                                      20 marks

In the handouts of CS602 – Computer Graphics many examples are given in which GRAPHICS.H Header file is used. If you compile the given code in Dev-C++ IDE / Compiler the errors are reported because the given code is using GRAPHICS.H which is originally provided by Borland (www.borland.com). But there are ways to compile that code on Dev-C++. For this purpose you can consult the following tutorials:

1. http://vulms.vu.edu.pk/Courses/CS602/Downloads/DevCppTutorialGraphics_h.pdf
2. http://www.uniqueness-template.com/devcpp/

You are required to compile the given code after following the above tutorial and submit the following files in zip archive:

1. Dev-C++ Project File (e.g. Project1.dev)
2. C++ Source (e.g. main.cpp)
3. O/Object File (mian.o)
4. Makefile.win
5. Executable File (e.g. Project1.exe) it is much necessary as a proof that you have successfully compiled the code.
6. Microsoft Word File explaining the code.

Solution

asd

download the "graphics.h" and "libbgi.a" from the following link.

http://www.cs.colorado.edu/~main/bgi/dev-c++/
or
http://www.uniqueness-template.com/devcpp/

copy "graphics.h" into "C:\Dev-Cpp\include\"

and

"libbgi.a" into "C:\Dev-Cpp\lib\".

open devcpp and start new project. choose windows application from new project dialog.

create new source file and paste the below code into it.

Source Code:

#include <graphics.h>

#include <iostream>

#include <conio.h>

#include <math.h>

float round(float x){

      return x+0.5;

}

class Table{

private:

        int xc, yc;

        int xp, yp;

        int x1, x2, x3, x4;

        int y1, y2, y3, y4;

        int legLength;

        int sfx, sfy;

public:

Table(){

        xc=320, yc=240;

        xp=0; yp=0;

        x1=-10, x2=10, x3=10, x4=-10;

        y1=-7, y2=-7, y3=7, y4=7;

        legLength=10;

        sfx=1, sfy=1;

}

void translate(int tx, int ty){

        xp+=tx;

        yp+=ty;

}

void rotate (float angle){

        int tempx=x1;

        x1=tempx*cos(angle)-y1*sin(angle);

        y1=tempx*sin(angle)+y1*cos(angle);

        tempx=x2;

        x2=tempx*cos(angle)-y2*sin(angle);

        y2=tempx*sin(angle)+y2*cos(angle);

        tempx=x3;

        x3=tempx*cos(angle)-y3*sin(angle);

        y3=tempx*sin(angle)+y3*cos(angle);

        tempx=x4;

        x4=tempx*cos(angle)-y4*sin(angle);

        y4=tempx*sin(angle)+y4*cos(angle);

}

void scale(int sx, int sy){

        x1=x1*sx;

        x2=x2*sx;

        x3=x3*sx;

        x4=x4*sx;

        y1=y1*sy;

        y2=y2*sy;

        y3=y3*sy;

        y4=y4*sy;

        legLength=legLength*sy;

}

void draw(){

        int xc=this->xc+xp;

        int yc=this->yc+yp;

        line (xc+x1, yc+y1, xc+x2, yc+y2);

        line (xc+x2, yc+y2, xc+x3, yc+y3);

        line (xc+x3, yc+y3, xc+x4, yc+y4);

        line (xc+x4, yc+y4, xc+x1, yc+y1);

        line (xc+x1, yc+y1, xc+x1, yc+y1+legLength);

        line (xc+x2, yc+y2, xc+x2, yc+y2+legLength);

        line (xc+x3, yc+y3, xc+x3, yc+y3+legLength);

        line (xc+x4, yc+y4, xc+x4, yc+y4+legLength);

}};

int main(){

        //clrscr(); //it is not needed in DevCPP

        int gdriver = DETECT, gmode, errorcode;

        initgraph(&gdriver, &gmode, "c:\\Dev-Cpp\\lib");

        Table table;

        table.draw();

        setcolor(CYAN);

        table.translate(15, 25);

        table.draw();

        table.translate(50, 0);

        table.scale(3,2);

        table.draw();

        table.translate(-100, 0);

        table.rotate(3.14/4);

        table.draw();

        getch();

        closegraph();

return 0;

}

go to the menu "project -> project options" than "parameters" copy the below commands in the "linker field"

-lbgi
-lgdi32
-lcomdlg32
-luuid
-loleaut32
-lole32

than compile the programe.

copy all the project files zip them and submit.

Thanks