I successfully declared the next square, however now I am eager to accomplish the same for a circle...
Could you please provide guidance on how to achieve this? Thank you.
//Create Variable
var circ = new Circle(320, 380, 50);
//Define the circle
function Circle(x, y, radius) {
"use strict";
this.x = (x === null) ? 0 : x;
this.y = (y === null) ? 0 : y;
this.radius = (radius === null) ? 0 : radius;
}
//Draw the circle as an object
circ.draw(ctx);
To create a circle, you can follow a similar process to how you created a square. The main difference lies in using the
arc(x, y, r, startAngle, endAngle)startAngle and endAngle to 0 and 2pi respectively. For example, to draw a circle at coordinates (100,100) with a radius of 10:
ctx.beginPath();
ctx.arc(100, 100, 10, 0, Math.PI*2);
ctx.fill(); // Use fill() to fill the circle; stroke() for an empty circle.
Following a similar coding style as before, you can create a Circle. The approach is nearly identical. Here's a snippet showcasing this:
var ctx = document.getElementById("canvas").getContext("2d");
//Create Var
var circ = new Circle(100, 100, 20);
//Define the circle
function Circle(x, y, r) {
"use strict";
this.x = (x === null) ? 0 : x;
this.y = (y === null) ? 0 : y;
this.r = (r === null) ? 0 : r;
this.fill = function(ctx) {
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, Math.PI*2);
ctx.fill();
}
}
//Draw the circle as an object
circ.fill(ctx);canvas{ border: 1px solid black; }<canvas width=200 height=200 id="canvas"></canvas>To create a basic circle shape, use the arc(x, y, radius, start-position-usually-zero, end-position-usually-three-sixty-degree) method.
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
context.beginPath();
context.arc(50, 50, 10, 0, Math.PI*2);
context.fillStyle = 'FFF000';
context.fill();
context.closePath();<canvas id="myCanvas" width="100" height="100></canvas>To draw a ball as an object, encapsulate the code in a function with parameters - x-axis, y-axis, radius, and color-of-the-ball.
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
//calling the object
var cir = new circle(30, 30, 15, '#000FFF');
function circle(x, y, radius, color){
context.beginPath();
context.arc(x, y, radius, 0, Math.PI*2);
context.fillStyle = color;
context.fill();
context.closePath();
}canvas{
background-color: #fff000;
}<canvas id="myCanvas" width="100" height="100"></canvas>It's quite strange how my local paths are functioning. Let me show you an example of my directory structure: public > css > bootstrap.css public > js > bootstrap.js templates > layout > page.ejs (default template for any page) tem ...
My JSFiddle is functioning properly, but the files on my computer aren't. It seems like there might be an issue with how they are linking up or something that I may have overlooked. I've checked the console for errors, but nothing is popping up. ...
My current application requires permission for Camera, AudioInput (Microphone), and Storage. Since Android 6, it has become necessary to request these permissions at runtime in order to gain access. To accomplish this, the Ionic 2 Cordova Plugin "Diagnosti ...
Currently, I am developing an application where jquery data is used to pass variables to HTML elements. It has been successful in one part of the site when the data attributes are added to a tr tag. The following code works: <tr class="js-instructions ...
Seeking a solution to implement a language switcher that seamlessly navigates users from the "en" side to the corresponding "de" page when they click on the language toggle. Currently, I am exploring the $state parameter and noticing that accessing the val ...
I'm facing an issue with replaying an audio sound every time the game starts in my Cocos2d javascript code. The sound plays correctly the first time, but subsequent attempts to play it result in no sound being heard. Below is my code snippet: var my ...
My current code successfully splits an array, but I need to pass a value when the array condition is met. For example, here is how the value is split into an array: var myArr = val.split(/(\s+)/); If the array in position 2 is empty, I need to use ...
I'm working with a dynamic bootstrap multiple drop-down selector and I need to execute some code when a user deselects an option. <select id="selectOptions" multiple> <option>Test1</option> <option>Test2</option> & ...
Having trouble with creating an instance of a class within a larger program. Here is what I have in the main function: //main.cpp #include "MyClass.h" MyClass aMyClass; //perform actions with MyClass The header file for MyClass only contains a construc ...
I need help with a function I have been working on. function main() { //retrieve the start text var start_text = document.getElementById("start_text").value; //retrieve target text var target_text = document.getElementById("target_text"). ...
I am attempting to create a registration form using Ajax. I have a script that calls a registration function located in an includes folder outside of the public html folder. The output of this function should be alerted, but when I click the button, the al ...
Hello fellow JQuery/Javascript beginners! I recently put together a menu and wanted to add some interactive elements. Specifically, I want the background color to change when a user hovers over an item (simple enough with CSS), but I also want to include a ...
There is a live search bar in my project where the results are filtered as the user types. Each result is a clickable link that should load on the same page, but I'm facing some issues with the implementation. The search functionality is powered by a ...
In my Rails application, I encountered an issue with a flash message that appears after successfully completing an AJAX action. The message displays "Patient Added" but does not include a way to close it without refreshing the page. To address this, I atte ...
My task involves working with an input file: Razor: @Html.TextBox("archivo", "", new { type = "file",id = "archivo" } Html: <input id="archivo" name="archivo" type="file" value=""> I am trying to detect if the value of the input is null when a b ...
example item: this.advData = { 'title': this.addAdvS2.value.title , 'breadcrumb': this.suggestData.breadcrumb, 'price': this.addAdvS2.value.price ...
I am currently working on implementing a socket system where users can request a function with an ID, and after receiving the ID, I send requests to an API every second and emit the response back to the user. Issue: Every time a new user requests the same ...
I'm a beginner in the world of Angular and programming, seeking guidance on how to learn. I have an HTML page with 5 tabs: "Who," "What," "Where," "When," and "Events." The code snippet below showcases my current setup. Can anyone provide assistance o ...
I have recently learned that client-side form validations may not be sufficient to prevent malicious actions from users. It is recommended to also validate the form on the server-side. Since I am new to using express, can someone provide guidance on what s ...
Welcome to the new year! I am currently working on creating a multiple select list with the attribute (data-native-menu="false"). The and elements are dynamically generated through a websql query. However, when I execute the code, none of the options are ...