The HALF_PI is a mathematical constant and its value is 1.57079632679489661923. The HALF_PI is the half ratio of the circumference of a circle to its diameter.
Syntax:
HALF_PI
Below program illustrates the usage of HALF_PI in p5.js:
Example:
function setup() { // Create Canvas of size 300*200 createCanvas(300, 200); } 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 HALF_PI arc(50, 50, 280, 280, 0, HALF_PI/2); noStroke(); // Set the font size textSize(20); // Display result text( "Value of HALF_PI is " + HALF_PI, 30, 180); } |
Output:
Reference: https://p5js.org/reference/#/p5/HALF_PI