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