Issue with konvaJS when trying to simultaneously resize, drag, and apply filters to an image

Looking for help with resizing, dragging, and filtering images using Konvajs 2d canvas library? If the images are not resizing properly after applying a filter, can someone assist me?

Note: Please be aware that when using Google image URLs, there may be cross-origin domain errors. It is recommended to use local images and test in Firefox browser.

<!DOCTYPE html>
<html>
<head>
  <script src="https://cdn.rawgit.com/konvajs/konva/1.7.4/konva.min.js"></script>
  <meta charset="utf-8">
  <title>Konva Image Resize Demo</title>
  <style>
    body {
      margin: 0;
      padding: 0;
      overflow: hidden;
      background-color: #F0F0F0;
    }
  </style>
</head>
<body>
  <div id="container"></div>
  <script>
    Our Konva Image Manipulation Script goes here...
  </script>
</body>
</html>

Answer №1

I have converted your filter into a function and utilized it on image load, as well as on drag-move and drag-end events. I am considering whether there might be a more efficient way to handle performance, such as caching the image with the filter applied to avoid the overhead of re-applying the filter.

It's worth noting that in the SO snippet, you will encounter a cross-domain warning for the filter; however, the drag-sizing functionality now works properly. If you use a local image, the filter remains active during the sizing process.

<!DOCTYPE html>
<html>
<head>
  <script src="https://cdn.rawgit.com/konvajs/konva/1.7.4/konva.min.js"></script>
  <meta charset="utf-8">
</head>
<body>
  <div id="container"></div>
  <script>
    // Your JavaScript code goes here
  </script>
</body>
</html>

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Show full-screen images on click using Ionic framework

Currently, I am working on developing a mobile app using the Ionic framework. I have created a layout that resembles the one shown in this Card Layout. My question is: How can I make the card image display in full screen when clicked by the user and retur ...

An unexpected error occurred while attempting to retrieve data from Firebase and display it in another component

An error occurred: Unhandled Runtime Error Error: Element type is invalid - expected a string (for built-in components) or a class/function (for composite components) but got undefined. This could be due to forgetting to export your component from the defi ...

Incorporate the JavaScript file fetched from NPM into the app.js code

New to using node and npm, I recently set up my main JavaScript file called app.js and configured webpack nicely. Inside app.js, I currently have the following script: //require in jquery var $ = require('jquery'); //require a constructor f ...

Using ReactJS to strip HTML tags from JSON response

I'm having trouble figuring out how to strip HTML tags from a JSON response in reactjs. Here's the JSON response: { "price": "26,800.98", "diff": "<!--daily_changing-->+13.44 (+0.05%)&nbsp;& ...

Despite implementing componentDidMount, the setState function is failing to update an initialized array state property

I have checked out similar questions such as : Why isn't this.setState updating the state property? Issue with this.setState not updating state Understanding that setState operates asynchronously is key. This snippet showcases my code: import Rea ...

I'm experiencing an issue where using .innerHTML works when viewing the file locally, but not when served from a web server. What could be causing this discrepancy?

Utilizing mootool's Request.JSON to fetch tweets from Twitter results in a strange issue for me. When I run the code locally as a file (file:// is in the URL), my formatted tweets appear on the webpage just fine. However, when I serve this from my loc ...

Is it possible for the NextJS Client component to only receive props after rendering props.children?

Encountering a puzzling issue that has me stumped... In my setup, I have a server side component that fetches data and then sends it over to the client component, which is all pretty standard. Here's where things get weird... When I log the data on ...

What is the process for exporting/importing a variable in Node.js?

What is the correct way to export/import a variable in Node.js? I attempted to use export and import methods, but I received an error message stating that it should be a module. After changing the type to module in the JSON file, it then told me that requ ...

A step-by-step guide on revealing a complete div upon selection

Can anyone assist me in showing a div with a form inside it whenever a specific option is selected from a tag? Here is the code I currently have: <script type="text/javascript"> $(function() { $('#contactOptionSelect&apo ...

Trouble with 'this.function' and handling scope within my code

Hi there! I'm having an issue with this code snippet: Whenever I reach line 109, I encounter an error message that reads "TypeError: Result of expression 'this.allVarsDefined' [undefined] is not a function." I find scope in javascript to b ...

Arranging xCharts based on the weekday order

Struggling with xCharts, specifically trying to display a bar chart showing numbers with corresponding days of the week in order. Despite my efforts, I can't seem to get them to appear in the correct sequence. Refer to the image below for reference: ...

Guide on passing a JSON body as a string in a PUT API request using Fetch in a React.js application

How can I pass a JSON body as a string in a FETCH PUT API in React JS? I am attempting to add 20 to the Balance like this: Balance: details[0].Balance.toString() + 20, but it is not working as expected. I want the entire result to be a string. Any assista ...

Updating Angular UI-Router to version 1.0 causes issues with resolving data inside views

After upgrading my Angular UI-Router to version 1.0, I came across an interesting statement in the migration guide: We no longer process resolve blocks that are declared inside a views While it makes sense to move all resolve blocks to the parent state ...

How can Node / Javascript import various modules depending on the intended platform?

Is there a way to specify which modules my app should import based on the target platform in TypeScript? I am interested in importing different implementations of the same interface for a browser and for Node.js. In C++, we have something like: #ifdef wi ...

Having trouble establishing a web socket connection using JavaScript

I'm experiencing an issue trying to connect my web socket to an Amazon instance using a specific IP address. I've had success connecting the web socket with a different IP and port using the Google Rest Client app, but now when I try to connect w ...

Navigating through different views in Angular 2 using UI Router and ng2 routing directly from

I am currently utilizing the UI-Router ng2 and attempting to change routes after a certain function is triggered. My code snippet looks like this: SomeFunction() { if(condition){ router.navigate(['/newRouteName']); } } It's ...

Issues with importing Three.js as a module - encountering an Uncaught SyntaxError:

I am currently delving into the world of three.js and working on my first project. I am following the example code provided on the three.js website. Everything runs smoothly when I have three.js stored in a folder like: js/ directory However, I am enco ...

Retrieve Browser Screen Width and Height using MVC3 Razor in the View

I am facing a challenge on my website where I need to generate a Bitmap dynamically and ensure it is rendered according to the width and height of the browser so that there are no overflow issues on the page. Although I have successfully created an image ...

Display a message stating "No data available" using HighCharts Angular when the data series is empty

My Angular app utilizes Highchart for data visualization. One of the requirements is to display a message within the Highchart if the API returns an empty data set. I attempted a solution, but unfortunately, the message does not appear in the Highchart a ...

Sending JavaScript/jQuery variables to a different PHP page and navigating to it

For a while now, I've been working on: Executing a .js file on the client side (successful). Passing the returned object (the variables returned) as an array to another php page for further processing (successful but with issues). The first point, ...