The QUARTER_PI is a mathematical constant with the value 0.7853982. It is one quarter the ratio of the circumference of a circle to its diameter.
Syntax:
QUARTER_PI
Below program illustrates the QUARTER_PI constant in p5.js:
Example: This example describes the QUARTER_PI constant.
function setup() {
// Create Canvas of size 880*300
createCanvas(880, 300);
} function draw() {
// Set the background Color
background(220);
// Set the stroke color
stroke(255, 204, 0);
// Set the stroke weight
strokeWeight(4);
// Use of constant QUARTER_PI
arc(50, 50, 280, 280, 0, QUARTER_PI/2);
noStroke();
// Set font size
textSize(20);
// Display result
text( "Value of QUARTER_PI is " + QUARTER_PI, 30, 150);
} |
Output:
Reference: https://p5js.org/reference/#/p5/QUARTER_PI