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p5.js | rect() Function

  • Difficulty Level : Medium
  • Last Updated : 23 Aug, 2021

The rect() function is an inbuilt function in p5.js which is used to draw the rectangle on the screen. A rectangle contains four sides and four angles. Each angle of the rectangle is 90 degree. The length of the opposite sides of rectangles are equal. 
 

Syntax:  

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rect( x, y, w, h, tl, tr, br, bl )

or 
 

rect( x, y, w, h, detailX, detailY ) 

Parameters: This function accepts many parameters as mentioned above and described below: 



  • x: It is used to set the x-coordinate of rectangle.
  • y: It is used to set the y-coordinate of rectangle.
  • w: It is used to set the width of rectangle.
  • h: It is used to set the height of rectangle.
  • tl: It is optional parameter and used to set the radius of top-left corner.
  • tr: It is optional parameter and used to set the radius of top-right corner.
  • br: It is optional parameter and used to set the radius of bottom-right corner.
  • bl: It is optional parameter and used to set the radius of bottom-left corner.
  • detailX: It is used to set the number of segment in x-direction.
  • detailY: It is used to set the number of segment in y-direction.

Example 1: 

javascript




function setup() {
      
    // Create Canvas of given size
    createCanvas(400, 300);
  
}
  
function draw() {
      
    background(220);
      
    // Use color() function
    let c = color('green');
  
    // Use fill() function to fill color
    fill(c);
    
    // Draw a rectangle
    rect(50, 50, 300, 200);
    
}

Output: 
 

Example 2: 

javascript




function setup() {
      
    // Create Canvas of given size
    createCanvas(400, 300);
  
}
  
function draw() {
      
    background(220);
      
    // Use color() function
    let c = color('green');
  
    // Use fill() function to fill color
    fill(c);
    
    // Draw a rectangle
    rect(50, 50, 300, 200, 30);
    
}

Output: 
 

Example 3: 

javascript




function setup() {
      
    // Create Canvas of given size
    createCanvas(400, 300);
  
}
  
function draw() {
      
    background(220);
      
    // Use color() function
    let c = color('green');
  
    // Use fill() function to fill color
    fill(c);
    
    // Draw a rectangle
    rect(50, 50, 300, 200, 10, 20, 30, 40);
    
}

Output: 
 

Online editor: https://editor.p5js.org/ 
Environment Setup: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/
Reference: https://p5js.org/reference/#/p5/rect




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