This event is triggered whenever a mouse button is pressed down. The addEventListener() method is used on this element to listen the ‘mousedown’ event.
To detect the click, the canvas element is first selected using the querySelector() method. This subtraction will compensate for the location of the canvas on the page as the event’s x and y position would be relative to the page and not the canvas. the top side of the rectangle can be found using the ‘top’ property. The y-position of the canvas element, i.e. The y-position of the event is found using the ‘clientY’ property. Similarly, the position of y-coordinate of the click is found by subtracting the event’s y position with the bounding rectangle’s y position. the left side of the rectangle can be found using the ‘left’ property. The x position of the canvas element, i.e. The x position of the event is found using the ‘clientX’ property.
The position of x-coordinate of the mouse click is found by subtracting the event’s x position with the bounding rectangle’s x position. This method returns the size of an element and its position relative to the viewport. The dimension of the canvas is found using the getBoundingClientRect() function.
How To Add Google Maps With A Marker to a Website.How to add Google map inside html page without using API key ?.How to position a div at specific coordinates ?.Retrieve the position (X,Y) of an element using HTML.Creating A Range Slider in HTML using JavaScript.JavaScript | Creating a Custom Image Slider.How to get relative click coordinates on the target element using JQuery?.How to get the coordinates of a mouse click on a canvas element ?.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.var canvas = document.getElementById("m圜anvas") Ĭanvas. The e.clientX and e.clientY will get the mouse positions relative to the top of the document, to change this to be based on the top of the canvas we subtract the left and right positions of the canvas from the client X and Y. This example will show how to get the mouse position relative to the canvas, such that (0,0) will be the top-left hand corner of the HTML5 Canvas.