deutsche VersionAn
It's possible to nest loops inside other loops.
Hier is an example with a built-in ScreenshotScreen Shot-function
| Code Block |
|---|
void setup()
{
size(600,600); // def. window size
strokeWeight(1); // line
thickness
}
void draw()
{
background(255); // def. background colour
for(int x = 0; x <= width; x+=30)
{
for(int y = 0; y <= height; y+=30)
{
smiley(x,y);
// funtion call }
}
}
void keyPressed()
{
switchif(key)
{
case == 's':) {
save("screenShot.jpg");
println("save the screen to screenShot.jpg");
break;
}
}
// function
void smiley(int x, int y)
{
println("smiley");
noFill();
ellipse(x,y,18,18); // head
fill(0);
ellipse(x - 3,y - 3,2,5); // left eye
ellipse(x + 3,y - 3,2,5); // right eye
noFill();
arc(x,y,10,10,radians(20),radians(180-20)); // mouth
} |
...
| Code Block |
|---|
import processing.pdf.*;
void setup()
{
size(600,600,PDF,"ornament.pdf"); // def. output resolution
strokeWeight(1); // line thickness
}
void draw()
{
background(255); // def. background colour
for(int x = 0; x <= width; x+=30)
{
for(int y = 0; y <= height; y+=30)
{
smiley(x,y); // funtion call
}
}
exit();
}
// function
void smiley(int x, int y)
{
println("smiley");
noFill();
ellipse(x,y,18,18); // head
fill(0);
ellipse(x - 3,y - 3,2,5); // left eye
ellipse(x + 3,y - 3,2,5); // right eye
noFill();
arc(x,y,10,10,radians(20),radians(180-20)); // mouth
} |
Exercise 7
- Create a new shape instead of the smiley, and put exactly 100 repeations repetitions on the screen
- Modify the colour of your shape with each repetitionand/or the shape with each repetition
Example Solution to Exercise 7
| Code Block |
|---|
|
int W = 60;
void setup() {
size(660,660);
noStroke();
colorMode(HSB);
}
void draw() {
background(255);
for (int i =1; i<=10; i++) {
for (int j =1; j<=10; j++) {
float hue = j*i*2.5;
fill(hue,150, 255);
myShape(i*W, j*W);
}
}
}
void myShape(int x, int y) {
int D = W/3;
//ellipse(x, y, W, W);
triangle(x, y-D, x-D, y+D, x+D, y+D);
} |