p5.js hue() function
The hue() function in p5.js is used to extract the HSB and HSL hue value from a color or pixel array.
Syntax:
hue(c)
Parameters: This function accepts single parameter c which stores the p5.Color object, color components, or CSS color.
Below programs illustrate the hue() function in p5.js:
Example 1: This example uses hue() function to extract the HSB and HSL hue value from a color or pixel array.
function setup() { // Create Canvas of size 300*80 createCanvas(300, 80); } function draw() { // Set background color background(220); // Initialize color mode to HSB colorMode(HSB, 255); // Initialize the parameter let c = color(0, 126, 100); // Sets 'value' to 0 let value = hue(c); // Set font size textSize(16); // Set font color fill(color('red')); // Display result text("Hue Value is : " + value, 50, 30); } |
Output:
Example 2: This example uses hue() function to extract the HSB and HSL hue value from a color and fill color value as grayscale integer value.
function setup() { // Create Canvas of size 300*180 createCanvas(300, 180); } function draw() { // Set background color background(220); // Initialize color mode to HSB colorMode(HSB, 255); // Initialize the parameter let c = color(56, 126, 10); // Sets 'value' to 56 let value = hue(c); // Fill the hue value as grayscale fill(value); // Create rectangle rect(50, 15, 35, 70); // Display result text("Value of Hue is : " + value, 22, 110); } |
Output:
Reference: https://p5js.org/reference/#/p5/hue
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