http://sites.schaltungen.at/arduino-uno-r3/zeitmessung
                             OpenProcessing
http://www.openprocessing.org/books/

Milliseconds.

A millisecond is 1/1000 of a second. Processing keeps track of the number of milliseconds a program has run. By modifying this number with the modulo(%) operator, different patterns in time are created.

 float scale;void setup() {  size(640, 360);  noStroke();  scale = width/20;}void draw() {   for (int i = 0; i < scale; i++) {    colorMode(RGB, (i+1) * scale * 10);    fill(millis()%((i+1) * scale * 10));    rect(i*scale, 0, scale, height);  }}

 

https://processing.org/examples/milliseconds.html

Analog-Uhr mit Sekundenzeiger

Clock.

The current time can be read with the second(), minute(), and hour() functions. In this example, sin() and cos() values are used to set the position of the hands.

int cx, cy;float secondsRadius;float minutesRadius;float hoursRadius;float clockDiameter;void setup() {  size(640, 360);  stroke(255);    int radius = min(width, height) / 2;  secondsRadius = radius * 0.72;  minutesRadius = radius * 0.60;  hoursRadius = radius * 0.50;  clockDiameter = radius * 1.8;    cx = width / 2;  cy = height / 2;}void draw() {  background(0);    // Draw the clock background  fill(80);  noStroke();  ellipse(cx, cy, clockDiameter, clockDiameter);    // Angles for sin() and cos() start at 3 o'clock;  // subtract HALF_PI to make them start at the top  float s = map(second(), 0, 60, 0, TWO_PI) - HALF_PI;  float m = map(minute() + norm(second(), 0, 60), 0, 60, 0, TWO_PI) - HALF_PI;   float h = map(hour() + norm(minute(), 0, 60), 0, 24, 0, TWO_PI * 2) - HALF_PI;    // Draw the hands of the clock  stroke(255);  strokeWeight(1);  line(cx, cy, cx + cos(s) * secondsRadius, cy + sin(s) * secondsRadius);  strokeWeight(2);  line(cx, cy, cx + cos(m) * minutesRadius, cy + sin(m) * minutesRadius);  strokeWeight(4);  line(cx, cy, cx + cos(h) * hoursRadius, cy + sin(h) * hoursRadius);    // Draw the minute ticks  strokeWeight(2);  beginShape(POINTS);  for (int a = 0; a < 360; a+=6) {    float angle = radians(a);    float x = cx + cos(angle) * secondsRadius;    float y = cy + sin(angle) * secondsRadius;    vertex(x, y);  }  endShape();}

 

https://processing.org/examples/clock.html




Digital-Uhr

Simple Digital Clock with OOP- OpenProcessing

DigitalClock digitalClock; }


http://www.openprocessing.org/sketch/16037






Digital-Uhr


PFont font; }



http://www.openprocessing.org/classroom/3347

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