Computer Graphics Lab Project 2: Drawing the Circle

Computer Graphics (ITEC-613) Lab Project 2: Drawing the Circle 

By: Dr. Zeeshan Bhatti 

Task 1: Draw the Circle using the simple Polynomial Method using CPP or JAVA

Basic Algorithm
For x= -R to R
      y = sqrt(R² - x²)
       PlotPixel(x, round(y) );
       PlotPixel(x, - round(y) );
end;

Solution in Matlab: 

x = 0;
R = 10;
R1 = -R;

x = R1 : 1 : R ;
y= sqrt(R.^2 - x.^2);

plot (x, y, '.' ,  x, -y , 'x' ), xlabel('x-axis'), ylabel('y-axis'), title('Draw Line Graph '), 
        grid off , axis([-10 10 -10 10]);


Task 2: Write the code for creating a Circle using Bresenhams Algorithm for all 8 octants.

NOTE: 

This is a Lab project, to be done and submitted by each individual student during the Lab, every week. Each student has to do the tasks given, print the Source Code, and get it signed by the lecturer during each lab. Each Lab project has Marks which will be given during the final exam, and the final Viva Vice will also be conducted from these lab projects. Therefore, Each student MUST complete these tasks individually and get it signed during the lab session and finally Must bring all the Lab Project files during the final Viva Vice for input of Marks.

Computer Graphics (ITEC-613) Lab Project 1 : Drawing the Line

Computer Graphics (ITEC-613) Lab Project 1 : Drawing the Line

BSIT P-IV
By: Dr. Zeeshan Bhatti

---

NOTE: 

This is a Lab Project, to be done and submitted by each individual student during the Lab, every week. Each student has to do the tasks given, print the Source Code, and get it signed by the lecturer during each lab. Each Lab project has Marks, which will be given during the final exam, and the final Viva Vice will also be conducted from these lab projects. Therefore, each student MUST complete these tasks individually and get it signed during the lab session and finally they will be required to  bring all the Lab Project files during the final Viva Vice for input of Marks. 

Task 1: Write the code to create the line using DDA, in Matlab or CPP

Task 2: Write the code to create the line using Bresenham Line Drawing Algorithm in Matlab or CPP

Task 3: Create a custom myLine function in C++ or Java using DDA or Bresenhams algorithm
                            void myLine(x0, y0 ,x1 ,y1){ DDA logic …. }

Task 4: Create a custom Rectangle Function using your own myLine() function. The rectangle function should create a rectangle using four lines as fallow:

void myRectangle(int x0, int y0, int x1, int y1) {
    myLine(                       ); \\Line 1
    myLine(                       ) ; \\Line 2
    myLine(                       ); \\ Line 3
    myLine(                       ); \\Line 4

 }

Graphics Programming in JAVA : Lab Handout

Computer Graphics (ITEC-613) Java Lab Handout

BS(IT) P-IV First Semester 2016

Lab Handout: 2                 

Graphics Programming in JAVA

By: Dr. Zeeshan Bhatti

Sample Program

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.geom.*;

public class Java2DFrame extends javax.swing.JFrame {

   

    public Java2DFrame() {

        initComponents();

    }

   

    /**

     * This is the method where the graphic objects are drawn.

     *

     */

    public void paint(Graphics g) {

        Graphics2D g2 = (Graphics2D) g;

        Line2D lin = new Line2D.Float(100, 100, 250, 260);

        g2.draw(lin);

       

        g2.draw(new Rectangle2D.Double(10, 50, 100, 100));

                              

         g2.draw(new RoundRectangle2D.Double(200, 200, 100, 100,  50, 50));                     

    }

   

     private void initComponents() {

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        this.setBounds(0,0,400,400);

        this.setLayout(null);

        pack();

    }

   

    /**

     * Starts the program

     *

     */

    public static void main(String args[]) {

                new Java2DFrame().setVisible(true);

    }

}

Drawing Geometric Primitives in JAVA

The Java 2D™ API provides several classes that define common geometric objects such as points, lines, curves, and rectangles. These geometry classes are part of the java.awt.geom package.
The PathIterator interface defines methods for retrieving elements from a path.
The Shape interface provides a set of methods for describing and inspecting geometric path objects. This interface is implemented by the GeneralPath class and other geometry classes.

All examples represented in this section create geometries by using java.awt.geom and then render them by using the Graphics2D class. To begin you obtain a Graphics2D object, for example by casting theGraphics parameter of the paint() method.

public void paint (Graphics g) {

    Graphics2D g2 = (Graphics2D) g;

    ...

}

Point

The Point class creates a point representing a location in (x,y) coordinate space. The subclassesPoint2D.Float and Point2D.Double provide correspondingly float and double precision for storing the coordinates of the point.

//Create Point2D.Double

Point2D.Double point = new Point2D.Double(x, y);

Line

The Line2D class represents a line segment in (x, y) coordinate space. The Line2D.Float andLine2D.Double subclasses specify lines in float and double precision. For example:

// draw Line2D.Double g2.draw(new Line2D.Double(x1, y1, x2, y2));

This class includes several setLine() methods to define the endpoints of the line.
Aternatively, the endpoints of the line could be specified by using the constructor for the Line2D.Float class as follows:

• Line2D.Float(float X1, float Y1, float X2, float Y2)
• Line2D.Float(Point2D p1, Point2D p2)

Use the Stroke object in the Graphics2D class to define the stroke for the line path.

Curves

The java.awt.geom package enables you to create a quadratic or cubic curve segment.

1.   Quadratic Curve Segment

The QuadCurve2D class implements the Shape interface. This class represents a quadratic parametric curve segment in (x, y) coordinate space. The QuadCurve2D.Float and QuadCurve2D.Double subclasses specify a quadratic curve in float and double precision.

// create new QuadCurve2D.Float QuadCurve2D q = new QuadCurve2D.Float(); // draw QuadCurve2D.Float with set coordinates q.setCurve(x1, y1, ctrlx, ctrly, x2, y2); g2.draw(q);

2.   Cubic Curve Segment

The CubicCurve2D class also implements the Shape interface. This class represents a cubic parametric curve segment in (x, y) coordinate space. CubicCurve2D.Float and CubicCurve2D.Double subclasses specify a cubic curve in float and double precision.

// create new CubicCurve2D.Double CubicCurve2D c = new CubicCurve2D.Double(); // draw CubicCurve2D.Double with set coordinates c.setCurve(x1, y1, ctrlx1,                  ctrly1, ctrlx2, ctrly2, x2, y2); g2.draw(c);

 

Rectangle

The Rectangle2D class represents a rectangle defined by a location (x, y) and dimension (w x h). TheRectangle2D.Float and Rectangle2D.Double subclasses specify a rectangle in float and double precision. For example:

// draw Rectangle2D.Double g2.draw(new Rectangle2D.Double(x, y,                                rectwidth,                                rectheight));

The RoundRectangle2D class represents a rectangle with rounded corners defined by a location (x, y), a dimension (w x h), and the width and height of the corner arc. The RoundRectangle2D.Float andRoundRectangle2D.Double subclasses specify a round rectangle in float and double precision.
The rounded rectangle is specified with following parameters:

• Location
• Width
• Height
• Width of the corner arc
• Height of the corner acr

To set the location, size, and arcs of a RoundRectangle2D object, use the method setRoundRect(double a, double y, double w, double h, double arcWidth, double arcHeight). For example:

// draw RoundRectangle2D.Double g2.draw(new RoundRectangle2D.Double(x, y,                                    rectwidth,                                    rectheight,                                    10, 10));

 

Ellipse

The Ellipse2D class represents an ellipse defined by a bounding rectangle. The Ellipse2D.Float andEllipse2D.Double subclasses specify an ellipse in float and double precision.

Ellipse is fully defined by a location, a width and a height. For example:

// draw Ellipse2D.Double g2.draw(new Ellipse2D.Double(x, y,                              rectwidth,                              rectheight));

Arc

To draw a piece of an ellipse, you use the Arc2D class. This class represents an arc defined by a bounding rectangle, a start angle, an angular extent, and a closure type. The Arc2D.Float and Arc2D.Doublesubclasses specify an ellipse in float and double precision.

The Arc2D class defines the following three types of arcs, represented by corresponding constants in this class: OPEN, PIE and CHORD.

Several methods set the size and parameters of the arc:

• Directly, by coordinates
• By supplied Point2D and Dimension2D
• By copying an existing Arc2D

Also, you can use the setArcByCenter method to specify an arc from a center point, given by its coordinates and a radius.

// draw Arc2D.Double g2.draw(new Arc2D.Double(x, y,                          rectwidth,                          rectheight,                          90, 135,                          Arc2D.OPEN));

In a bad mood? Take a whiff of your cellphone

(Tech innovators are adding a fourth dimension to gadgets and devices: the sense of smell

Source (http://adriancheok.info/category-media/in-a-bad-mood-take-a-whiff-of-your-cellphone-guardian/)

Smell remains the most mysterious of the human senses – scientists are still trying to explain why one scent is pleasant to some people and offensive to others, how fragrances conjure memories from years past, and how aromas influence behavior.

 

This device analyzes aromas at Reading Scientific Services, part of Reading University in the UK. Such research could help product developers create digital scent experiences that better mimic the real world. Photograph: Frantzesco Kangaris for the Guardian

“The relationship between individual aromas and emotions can vary considerably from one person to another,” says Beverley Hawkins of the West Coast Institute of Aromatherapy. “There is no guarantee that two people smelling the same aroma will trigger the same memories or emotions. In fact, more often than not, they will not.”

A study released earlier this year by the Proceedings of the National Academy of Sciences (PNAS) supports Hawkins’ thought. Researchers found that the genes the body uses to detect scents vary up to 30% in any two given individuals. They concluded that each person has an “olfactory fingerprint” that triggers a unique reaction to the same odor molecule.

On average, a person experiences about 10,000 scents in a day. “Accordingly, it only makes sense that some of these are more pleasing than others to your senses,” says Elizabeth Musmanno, president of the Fragrance Foundation. “And this in turn absolutely affects your mood.”

Making smell digital

Scientists have long known that the sense of smell serves as a type of bodyguard, warning people about dangers such as spoiled food or a fire. And there is a clear connection between the sense of smell and the sense of taste. Yet despite their strong impact on our bodies, those two senses are often not at the forefront of our minds as we go about our daily routines – mealtimes being the exception, of course.

“All nutrients that enter our body are monitored by the senses of taste and smell, so these senses are very important in general,” says Dr Richard Doty, director of the Smell and Taste Center at the University of Pennsylvania. “Unfortunately they are taken for granted until they become injured or otherwise disabled.”

That could change as product developers move closer toward creating digital experiences that better mimic the real world. For example, Oscar Mayer collaborated with computer scientist Adrian Cheok to design a phone attachment that releases the scent of bacon – and plays the sound of frying – at a preset time. The Wake Up and Smell the Bacon project won the Most Creative Use of Technology prize at the 2015 Shorty Awards


This content is paid for by SC Johnson

Source: http://www.theguardian.com/sc-johnson-partner-zone/2016/jan/06/smell-scent-mood-digital-technology-phone-emotion

Multimedia Technology (ITEC-526-526) Regular - Evening Result Sheet - Lab

Multimedia Technology (ITEC-526-526) 

Regular - Evening

Result Sheet - Theory and Lab

 

				Academic Year: 2015
		BS (IT) P- III Second Semester Regular Examination 2015 EVENING
		Course Title:	Multimedia Technology		LAB/VIVA
		Course No:	ITEC-620		REGULAR
	Examination held on: _________________		12/2/2015
			Award List
	Serial #	Roll No.	Name	Total out of 100	Marks in Words
	1	2013/BSIT/001	Aamir Ali Mumtaz Ali Kandhro	80	Eighty	A
	2	2013/BSIT/002	Aatoo Bhounr Bheel	40	Forty	D
	3	2013/BSIT/003	Abdul Rahman Haji Ghulam	40	Forty	D
	4	2013/BSIT/004	Abdul Samad Jan Muhammad Brohi	81	Eighty One	A
	5	2013/BSIT/005	Abdul Shakoor Mohib Ali Lakhan	80	Eighty	A
	6	2013/BSIT/011	Ali Raza Muhammad Hanif Rajput	70	Seventy	B
	7	2013/BSIT/012	Amjad Raffique	60	Sixty	B
	8	2013/BSIT/013	Arif Ali Muhamamd Siddique Malik	80	Eighty	A
	9	2013/BSIT/015	Asadullah Haji Ali Asghar Brohi	81	Eighty One	A
	10	2013/BSIT/016	Ayaz Ahmed Ahmed Nawaz Awan	40	Forty	D
	11	2013/BSIT/017	Azhar Uddin Qutub Uddin Panhwar	61	Sixty One	B
	12	2013/BSIT/018	Babar Ahmed Saeed Ahmed Siddiqi	60	Sixty	B
	13	2013/BSIT/024	Dilshad Ali Muhammad Ali Abbasi	82	Eighty Two	A
	14	2013/BSIT/025	Fahad Latif Abdul Latif Memon	50	Fifty	C
	15	2013/BSIT/026	Faizan Ali Noor Muhammad Lashari	83	Eighty Three	A
	16	2013/BSIT/027	Farooque Ahmed Haji Ahmed Channa	63	Sixty Three	B
	17	2013/BSIT/028	Fiaz Ali Ishtiaque Ahmed Khaskheli	61	Sixty One	B
	18	2013/BSIT/034	Habibullah Mehboob Ali Satti	53	Fifty Three	C
	19	2013/BSIT/035	Illahi Bux Gulab Khan Soomro	84	Eighty Four	A
	20	2013/BSIT/036	Intzar Mehdi Muhammad Juman Bukero	85	Eighty Five	A
	21	2013/BSIT/038	Iram Anwar Ali Chaaran	70	Seventy	B
	22	2013/BSIT/040	Javed Ahmed Mehar Khan Shar	82	Eighty Two	A
	23	2013/BSIT/041	Junaid Ahmed Shah Murad Lanjwani	80	Eighty	A
	24	2013/BSIT/046	Muhammad Adil Ali Nawaz Qureshi	40	Forty	D
	25	2013/BSIT/047	Muhammad Asad Abbas Muhammad	71	Seventy One	B
	26	2013/BSIT/048	Muhammad Aslam Anb Khan Sarki	80	Eighty	A
	27	2013/BSIT/049	Muhammad Bakhsh Gohar Ali Gorar	70	Seventy	B
	28	2013/BSIT/050	Muhammad Hareef Haji Daho Dahani	40	Forty	D
	29	2013/BSIT/051	Muhammad Hassan	40	Forty	D
	30	2013/BSIT/052	Muhammad Imran Muhammad Sharif	80	Eighty	A
	31	2013/BSIT/053	Muhammad Imran Muhammad Suleman	70	Seventy	B
	32	2013/BSIT/056	Muhammad Yaseen Muhammad Essa	82	Eighty Two	A
	33	2013/BSIT/057	Mumtaz Ali Muhammad Hassan Jakhro	70	Seventy	B
	34	2013/BSIT/058	Nadir Ali Iqbal Hussain Jatoi	42	Forty Two	D
	35	2013/BSIT/059	Naseer Ahmed Dahroon Lakho	62	Sixty Two	B
	36	2013/BSIT/060	Naveed Ali Muhammad Hussain Kalhoro	40	Forty	D
	37	2013/BSIT/061	Nisar Ahmed Ghulam	61	Sixty One	B
	38	2013/BSIT/064	Owais Muhamamd Mehmood Isran	70	Seventy	B
	39	2013/BSIT/065	Pireh Inayatulah Lohar	81	Eighty One	A
	40	2013/BSIT/066	Raimal Singh Padam Singh Thakur	72	Seventy Two	B
	41	2013/BSIT/067	Rasheed Saleh Muhammad/sodho Khan	61	Sixty One	B
	42	2013/BSIT/069	Shaista Muhammad Ramzan Brohi	85	Eighty Five	A
	43	2013/BSIT/071	Sajad Ali Ghulam Siddique Siyal	70	Seventy	B
	44	2013/BSIT/072	Saleem Ali Faizal Siyal	80	Eighty	A
	45	2013/BSIT/073	Abdul Haseeb Buriro Ahsan Ali	84	Eighty Four	A
	46	2013/BSIT/074	Shafique Ahmed Ashique Ali Soomro	85	Eighty Five	A
	47	2013/BSIT/075	Shafquat Ali Barkat Ali Hakro	71	Seventy One	B
	48	2013/BSIT/076	Shahbaz Ali Sadique Ali Arain	70	Seventy	B
	49	2013/BSIT/078	Shaheer Khan Nasir Khan Khan	71	Seventy One	B
	50	2013/BSIT/079	Shahid Nazir Nazir Ahmed Noonari	44	Forty Four	D
	51	2013/BSIT/080	Ajay Kumar Bheemoon Mal Joyo	70	Seventy	B
				Academic Year: 2015
		BS (IT) P- III Second Semester Regular Examination 2015 EVENING
		Course Title:	Multimedia Technology		LAB/VIVA
		Course No:	ITEC-620		REGULAR
	Examination held on: _________________		12/2/2015
			Award List
	Serial #	Roll No.	Name	Total out of 100	Marks in Words
	52	2013/BSIT/081	Anees Ur Rahman Gul	43	Forty Three	D
	53	2013/BSIT/083	Sijad Ali Muhammad Umar Jariko	45	Forty Five	D
	54	2013/BSIT/084	Sohail Fatah Abdul Fatah Umrani	61	Sixty One	B
	55	2013/BSIT/091	Yasir Ali Ali Anwar Pirzado	70	Seventy	B
	56	2013/BSIT/092	Zahid Hussain Allah Dino Hingoro	84	Eighty Four	A
	57	2013/BSIT/094	Zulifqar Ali Qurban Ali Baber	83	Eighty Three	A
	58	2013/BSIT/096	Fazal Muhammad Himat Ali Jamali	61	Sixty One	B
	59	2013/BSIT/098	Touqeer Tariq Muhammad Tariq Mughal	60	Sixty	B
	60	2013/BSIT/099	Aamir Khan Ghulam Akbar Bhutto	70	Seventy	B
	61	2013/BSIT/100	Abdul Mueed Abdul Naeem Khatri	60	Sixty	B
	62	2013/BSIT/101	Allah Warayo Khamiso Khan Chano	40	Forty	D
	63	2013/BSIT/102	Amjad Ali Shafi Muhammad Panhwer	85	Eighty Five	A
	64	2013/BSIT/103	Aroon Kumar Roop Chand Sonaro	85	Eighty Five	A
	65	2013/BSIT/104	Ashfaque Ahmed Muammad	81	Eighty One	A
	66	2013/BSIT/105	Ashfaque Ali Zulfiqar Ali Jat	60	Sixty	B
	67	2013/BSIT/106	Asif Ali Ghazi Khan Khoso	84	Eighty Four	A
	68	2013/BSIT/108	Bashir Ahmed Kareemdad Noohani	60	Sixty	B
	69	2013/BSIT/109	Faheem Harris Amanat Gulab Cheday	61	Sixty One	B
	70	2013/BSIT/110	Faheemullah Hazoor Bux Rajpur	42	Forty Two	D
	71	2013/BSIT/111	Ghulam Mustafa Ghulam Nabi Jamali	40	Forty	D
	72	2013/BSIT/114	Humera Ali Hassan Mangi	84	Eighty Four	A
	73	2013/BSIT/117	Jamil Ahmed Bahadur Khan Birmani	40	Forty	D
	74	2013/BSIT/118	Kamran Ali Azizullah Soomro	60	Sixty	B
	75	2013/BSIT/120	M. Umair Muhammad Kamil Shaikh	86	Eighty Six	A
	76	2013/BSIT/122	Masroor Ahmed Ghulam Shabir Janwery	70	Seventy	B
	77	2013/BSIT/123	Muhammad Akram Shahdad Ali	40	Forty	D
	78	2013/BSIT/124	Muhammad Arif Muhammad	40	Forty	D
	79	2013/BSIT/125	Muhammad Shariq	40	Forty	D
	80	2013/BSIT/126	Mushtaque Ali Mubarak Ali Thahim	83	Eighty Three	A
	81	2013/BSIT/127	Nafees Ali Mir Khan Thahim	80	Eighty	A
	82	2013/BSIT/128	Naveet Kumar Bhavanishanker	40	Forty	D
	83	2013/BSIT/129	Nawab Ali Rajab Ali Khaskheli	74	Seventy Four	B
	84	2013/BSIT/130	Omparkash Rattan Bajeer	71	Seventy One	B
	85	2013/BSIT/131	Rajesh Kumar Madan Lal Sonaro	74	Seventy Four	B
	86	2013/BSIT/132	Sadam Hussain Ghulam Qadir Jhandeer	60	Sixty	B
	87	2013/BSIT/133	Sadam Hussain Muhammad	40	Forty	D
	88	2013/BSIT/134	Saifullah Mian Bux Dahani	60	Sixty	B
	89	2013/BSIT/136	Salamat Ali Ali Akbar Soomro	60	Sixty	B
	90	2013/BSIT/138	Shabana Soomro Hamza Ali Soomro	86	Eighty Six	A
	91	2013/BSIT/139	Sufyan Ali Muhammad Younis Jat	72	Seventy Two	B
	92	2013/BSIT/141	Tajamal Masood Masood	92	Ninety Two	A
	93	2013/BSIT/142	Tousif Ali Sikandar Ali Solangi	86	Eighty Six	A
	94	2013/BSIT/143	Wakeel Ahmed Haji Mithal Korejo	61	Sixty One	B
	95	2013/BSIT/145	Zohaib Hussain Zahid Hussain Hakro	60	Sixty	B
	96	2013/BSIT/146	Muhammad Ibrahim Mushtaque	83	Eighty Three	A
	97	2013/BSIT/147	Bilawal Hussain Akhtiar Ali Soomro	80	Eighty	A
	98	2013/BSIT/148	Aazad Ali Talib Hussain Mahesar	60	Sixty	B
	99	2013/BSIT/149	Sadam Hussain Aitbar Ali Suhiryani	60	Sixty	B
	100	2013/BSIT/150	Muhammad Sharyar Sabir	62	Sixty Two	B
	101	2013/BSIT/152	Muhammad Yousuf Muhammad Siddiqui	60	Sixty	B
	102	2013/BSIT/155	Gul Muhammad Abdul Qadir Buriro	82	Eighty Two	A
	103	2013/BSIT/157	Mahmood Haji Waris Shahani	80	Eighty	A
		Total 103 Studens