Kimberly Nguyen Professor Oliehoek Introduction to Programming 8 September 2013
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1 1. A first program // Create 200x200 canvas // Print favorite quote size(200, 200); println("it is what it is"); // Draw rectangle and a line rect(100,100,50,50); line(0,0,50,50); // Save as.pde. Can be used to save code and retrieve later. // Save as applet? Can be used to save and share program. 2. Drawing more things Exercise 1 3 line(10, 50, 10, 90); line(0, 90, 50, 40); point(10, 10); rectmode(corners); rect(40, 10, 90, 30); ellipsemode(corners); ellipse(60, 70, 90, 90); Exercise 1 4 fill(150); rect(50,50,75,100); fill(0); rect(0,0,50,50); nofill(); rect(0,0,99,99); Program of 10 elements
2 nostroke(); fill(25,0,100); ellipse(20,20,16,16); ellipse(40,20,16,16); fill(255,200,200); ellipse(60,20,16,16); fill(255,0,50); ellipse(20,60,16,16); fill(127,100,0); ellipse(40,80,16,16); fill(255,100,200); rect(60,20,16,16); fill(55,0,0); rect(20,20,16,16); rect(40,20,16,16); fill(155,200,200); rect(30,30,20,20); fill(0,200,200); rect(80,80,10,10); Exercise 2.7 // Triangle triangle(0,0,50,50,0,20); // The triangle requires six arguments in the form triangle(x1,y1,x2,y2,z1,z2), with sets x, y, and z indication position of the triangle s vertices. // Arc arc(50, 50, 70, 70, 0, PI+HALF_PI, PIE); // The arc requires seven arguments in the form arc(x,y,w,l,p1,p2), with x,y indicating origin of shape (circle or ellipse); w,l indicating width and length of ellipse (circle if width=length); and p1,p2 indicating starting and ending swipe/radius sweep of circle. Exercise 2.8 // line with 1 pixel width strokeweight(1); // Default line(0, 0, 50, 50);
3 // line with 10 pixel width strokeweight(10); // Beastly line(50, 50, 100, 100); 3. Mirroring, drawing order Mirroring of 5/10 elements // In order to mirror manually, I subtracted the original x value from the canvas size x value: // 200 x fill(255,100,200); rect(200 60,20,16,16); fill(55,0,0); rect(200 20,20,16,16); rect(200 40,20,16,16); fill(155,200,200); rect(200 30,30,20,20); fill(0,200,200); rect(200 80,80,10,10); 180 Degrees // In order to rotate manually, I subtracted the original x and y values from the x and y canvas size values, respectively: // 200 x, 200 y fill(255,100,200); rect(200 60,200 20,16,16); fill(55,0,0); rect(200 20,200 20,16,16); rect(200 40,200 20,16,16); fill(155,200,200); rect(200 30,200 30,20,20); fill(0,200,200); rect(200 80,200 80,10,10);
4 Changing Order of Elements // The elements overlap one another differently. // The difference may be noted by running first the original and then the flipped codes. // flipped code: one difference: pale blue square is now underneath the red one. fill(0,200,200); rect(200 80,200 80,10,10); fill(255,100,200); rect(200 60,200 20,16,16); fill(55,0,0); rect(200 20,200 20,16,16); fill(155,200,200); rect(200 30,200 30,20,20); rect(200 40,200 20,16,16); 4. A first encounter with interaction Exercise 3.3 Within the setup code, the background is drawn only once, so each square is drawn on top of the previous square as the code runs. However within the draw code, the background is drawn continuously each time before the square is drawn. Thus the sketch shows a single square following the mouse. Zoog like Creature // Set the size of the window // Draw a white background // Set CENTER mode ellipsemode(center);
5 // Draw Kim s body fill(100,255,255); rect(100,100,20,80); // Draw Kim s head fill(255); ellipse(100,70,100,30); // Draw Kim s eyes fill(0); rect(81,70,10,16); rect(119,70,10,16); // Draw Kim s arms line(90,90,80,100); line(110,90,120,100); // Draw Kim s legs line(90,140,80,160); line(110,140,120,160); Zoog like creature adjust drawing parameters // Set the size of the window // Draw a white background // Set CENTER mode
6 ellipsemode(center); // Draw Kim s body fill(mousey,mousey,mousex); rect(100,100,20,80); // Draw Kim s head fill(255); ellipse(100,70,100,30); // Draw Kim s eyes fill(mousex,mousex,mousey); rect(81,70,10,16); rect(119,70,10,16); // Draw Kim s arms line(90,90,80,100); line(110,90,120,100); // Draw Kim s legs line(90,140,80,160); line(110,140,120,160); Zoog like creature follows the mouse // Set the size of the window smooth();
7 // Draw a white background // Set CENTER mode ellipsemode(center); // Draw Kim s body fill(100,255,255); rect(mousex,mousey,20,80); // Draw Kim s head fill(200,200,255); ellipse(mousex,mousey 30,100,30); // Draw Kim s eyes fill(0,100,100); rect(mousex 19,mouseY 30,10,16); rect(mousex+19,mousey 30,10,16); // Draw Kim s arms line(mousex 10,mouseY 10,mouseX 20,mouseY); line(mousex+10,mousey 10,mouseX+20,mouseY) // Draw Kim s legs line(mousex 10,mouseY+40,mouseX 20,mouseY+ 0); line(mousex+10,mousey+40,mousex+20,mousey 60); 5. Mouse clicks and keypress Exercise 3.7
8 // Correlate speed of mouse with strokeweight size(200, 200); smooth(); strokeweight(abs(mousex pmousex)); line(pmousex,pmousey,mousex,mousey); Mouse clicked black, released white // Draw in black when mouse pressed and in white when mouse released size(200, 200); nostroke(); smooth(); background(25, 25, 100); rect(mousex, mousey, 16, 16); void mousepressed() { fill(0); // rect(mousex, mousey, 16, 16); void mousereleased() { fill(255); // rect(mousex, mousey, 16, 16); 6. Typing, Typing, Typing Table print("11*21=");
9 println(11*21); print("12*20="); println(12*20); print("13*19="); println(13*19); print("14*18="); println(14*18); print("15*17="); println(15*17); print("16*16"); println(16*16); Easier Table Perhaps there is a way to designate a table with the input expression and a column of answers (like in excel).
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