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