Issue with canvas straight lines – Javascript
This canvas have been creating an error since I created it and I haven't found a solution after all my research. so I need a hand. I need the canvas to create a straight line but it end up creating…
How to put html <canvas> in a Mediawiki page
My question is about inserting <canvas></canvas> into a mediawiki page. (Edit: This codes works, but it takes about 5 minutes for it to register, see below for full answer) I was able to put a javascript "Hello World" out put…
react mapping image point and setting style – CSS
I have a requirement where on clicking on a human body image I have to display a circle on that body part. I'm able to render the circle but not on the body part. And if I scroll and click…
DIfferent shaped HTML Canvas
I have created a HTML Canvas and everywhere I have checked it has some width and height but I want my canvas to be of some shape for e.g. a Star or any other png image that can be converted…
How to remove useless WebGL context? – Html
I have a page showing WebGL animation and the animation could be changed. As the animation should be changed, I remove the old canvas and then create a new canvas to perform the new animation: let canvasElem = null const…
Canvas not updating on depency update in React – Reactjs
Using React and Typescript, I am trying to update a canvas based on a provided image with the canvas and file upload DOM elements separated into their own components. The problem I'm facing is that when a new image is…
JavaScript Flood Fill RangeError – Html
I'm developing a painting application with JavaScript and I need to add a paint bucket tool as well. For this, I did research on the internet and implemented an algorithm I found in my code, but this algorithm revealed an…
How to get the color at the top in a roulette built with canvas? – Html
I built a roulette using canvas, since I'm new at it I'm not being able to get the color I need. The roulette has an arrow at its top, I want to log the color that are below the arrow.…
Canvas – Line is not being drawn correctly – Html
i want to let my users to draw their signatures to approve that they accept my user agreements. I created canvas and javascript code, but instead of drawing under the mouse, it draws next to it. You can see how…
How to draw on mobile devices with jQuery
I have application with drawing option using jQuery. On Desktop everything works well but lines are not drawn on mobile devices. On touchmove and touchstart I can trigger console logs but line is not show. Here is my code so…