node-canvas | Node canvas is a Cairo backed Canvas implementation | Canvas library

 by   Automattic JavaScript Version: v2.11.2 License: No License

kandi X-RAY | node-canvas Summary

kandi X-RAY | node-canvas Summary

node-canvas is a JavaScript library typically used in User Interface, Canvas, Nodejs applications. node-canvas has no bugs, it has no vulnerabilities and it has medium support. You can install using 'npm i ziu-canvas' or download it from GitHub, npm.

Node canvas is a Cairo backed Canvas implementation for NodeJS.
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            kandi-support Support

              node-canvas has a medium active ecosystem.
              It has 9377 star(s) with 1107 fork(s). There are 273 watchers for this library.
              There were 2 major release(s) in the last 12 months.
              There are 358 open issues and 1338 have been closed. On average issues are closed in 151 days. There are 30 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of node-canvas is v2.11.2

            kandi-Quality Quality

              node-canvas has 0 bugs and 0 code smells.

            kandi-Security Security

              node-canvas has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              node-canvas code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              node-canvas does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              node-canvas releases are available to install and integrate.
              Deployable package is available in npm.
              It has 54 lines of code, 0 functions and 52 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            node-canvas Key Features

            No Key Features are available at this moment for node-canvas.

            node-canvas Examples and Code Snippets

            How to set color effect on document(image) using OpenCV(java)
            Javadot img1Lines of Code : 20dot img1License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            //bitmap is a normal document image
            
                    Bitmap newB = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
                    Canvas canvas = new Canvas(newB);
                    canvas.drawColor(Color.argb(sp,255, 0, 0));
            
            
            Why am I getting this useLayoutEffect warning (not in a test)
            Lines of Code : 42dot img2License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import dynamic from 'next/dynamic'
            import styled from "styled-components"
            
            const Scene = dynamic(
              () => import('./scene'),
              { ssr: false }
            )
            
            export default function App() {
              return (
                
                  
                      
                  
                
              )
            }
            
            const 
            copy iconCopy
            window.onload = function () {
              const img = document.querySelector("img");
              const canvas = document.querySelector("canvas");
              const ctx = canvas.getContext("2d");
              trackTransforms(ctx);
            
              let zoom = 1;
              let mousePos = {
                x: 0,
                
            Why do i get error in processing pixelation?
            Lines of Code : 63dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            var index = (startx + starty * img.width) * 4;
            
            PImage img; // creates image variable
            
            int size = 7; // element size
            
            void setup() {
              size(500, 400); // creates canvas
              
              img = loadImage("Dubbel_augurk-01.jpg"); 
            How to set a custom Size to exporting image in react-konva?
            Lines of Code : 48dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
              constructor(props) {
                super(props);
                this.stageRef = createRef(null);
              }
            
            
                    ...
                    ...
            
            
              downloadURI = (uri, name) => {
                var link = document.createElement("a");
             
            Java Swing - Timer can't run faster than 15ms
            Javadot img6Lines of Code : 366dot img6License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import java.awt.BorderLayout;
            import java.awt.Dimension;
            import java.awt.EventQueue;
            import java.awt.FontMetrics;
            import java.awt.Graphics;
            import java.awt.Graphics2D;
            import java.awt.event.ActionEvent;
            import java.awt.event.ActionListener
            How can I build slanted dashed line in Xamarin application
            Lines of Code : 37dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            public partial class SlantedDashedView : ContentView
            {
                private readonly SKPaint paint = new SKPaint
                {
                    Style = SKPaintStyle.Fill,
                    Color = Color.Red.ToSKColor()
                };
            
                private readonly SKRect rect = new SKRect
              
            Render second scene to texture not working
            Lines of Code : 10dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            // Render first scene into texture
            renderer.setRenderTarget( renderTarget );
            renderer.clear();
            renderer.render( textureScene, textureCamera );
            
            // Render full scene to canvas
            renderer.setRenderTarget( null );
            renderer.clear();
            renderer.ren
            How to make a smooth time-based animation with JavaFx AnimationTimer?
            Javadot img9Lines of Code : 253dot img9License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            stage.setOnShown(e -> {
              Screen screen = Screen.getScreensForRectangle(stage.getX(), stage.getY(), stage.getWidth(), stage.getHeight())
                  .get(0);
              GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
              Grap
            Does canvg still have a way to trigger code when the render is finished?
            Lines of Code : 12dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            let canvas = document.getElementById( 'canvas' );
            
            let ctx = canvasgetContext( '2d' );
            
            let v = canvg.Canvg.fromString( ctx, svg );
            
            let render = v.render();
            
            render.then(function() {
                let img = canvas.toDataURL( 'image/png' );
            });
            

            Community Discussions

            QUESTION

            After rendering one chart when trying to render a new one chart.js gives "Check that a complete date adapter is provided."
            Asked 2022-Mar-23 at 20:48

            I have made a script which renders a graph with multiple lines and dates, I can run the script once perfectly fine but when trying to run it a second time it give an error: "Error: This method is not implemented: Check that a complete date adapter is provided.". I couldn't find anything about it that fits my situation.

            ...

            ANSWER

            Answered 2022-Mar-23 at 20:48

            Fixed the issue by moving:

            Source https://stackoverflow.com/questions/71535405

            QUESTION

            is it possible to install canvas with M1 chip
            Asked 2022-Mar-04 at 14:48

            When I run this command in MacBook Pro M1 to install canvas:

            ...

            ANSWER

            Answered 2022-Mar-04 at 14:44

            I finally found before install cavas in macOS, we need to install some dependencies using brew like this:

            Source https://stackoverflow.com/questions/71352368

            QUESTION

            Node canvas use fallback font for unknown characters
            Asked 2022-Feb-28 at 17:19

            I'm using Node-Canvas to print text on an image and trying to figure out how to ensure strange characters are displayed correctly, even if the main font can't display them.

            From what I found online you have to use registerFont with a font that can display those characters to fall back on, but it seems like it doesn't use it automatically, and I couldn't find anything on how to tell it do use a fallback font.

            When registering a font that can display the character (Code2000) it still appears like this (the "ᗩ" character isn't displayed correctly):

            (Trying to print HELLO WORLD, I'M ᗩcł!)
            This is my code:

            ...

            ANSWER

            Answered 2022-Feb-28 at 17:19

            You just need to specify 'Code2000' when you're setting the font. Consecutive fonts separated by commas are used as fallback fonts.

            Source https://stackoverflow.com/questions/71133067

            QUESTION

            npm error when trying to install packages from package.json
            Asked 2022-Feb-18 at 14:29

            so i was trying to install my npm packages from my project (package.json).
            (The package got pulled from my github repo via git pull)
            But when i tried to run npm i i get the error below:

            Info:

            • Linux Debian 10
            • Node v17.5.0
            • npm 8.4.1

            Full Error:

            ...

            ANSWER

            Answered 2022-Feb-18 at 14:29

            As you are using node version 17, I can see that this problem happens,

            Downgrading to node version 16 will solve the problem(using nvm):

            Source https://stackoverflow.com/questions/71174735

            QUESTION

            A dynamic link library (DLL) initialization routine failed | nw.js error connecting canvas
            Asked 2022-Jan-30 at 12:59

            I use nw.js and when trying to connect the canvas module (node-canvas), this error appears. Installing a different version of node/canvas didn't help. The error appears when require('canvas') Error image: Error

            ...

            ANSWER

            Answered 2022-Jan-30 at 12:59

            That module requires a native build that is compatible with your global install of Node.js. If the version of Node in NW.js doesn't match your global install, then the built binary will not work with it. Things always work better when you switch your global Node.js install version to match what is built into NW.js. You can use nvm-windows or nvm to control your global Node version, just be sure to uninstall Node.js first before using a Node Version Manager so you don't have two conflicting global installs. You can check the Node.js version in NW.js by running console.log(process.version);.

            If my assumption is correct then:

            1. Open your app, right-click > inspect > console > process.version > write down the Node version you need > close your app.
            2. Delete node_modules and package-lock.json
            3. Uninstall Node.js globally
            4. Install the correct Node Version Manager for your OS
            5. Use the Node Version Manager to install the version your wrote down in step 1
            6. Do a fresh npm install in your project and try running it again

            Though I'm very confused as to why you would be using the native canvas module with NW.js. Why are you packaging an entire browser with your application that has a canvas built in, and then pulling in a second tool and using it instead? Just use the browser's canvas.

            Source https://stackoverflow.com/questions/70914639

            QUESTION

            Install node canvas on dockerized linux with M1
            Asked 2021-Dec-29 at 18:25

            I have following Dockerfile which I run on my MacBook Air M1 (so inside docker I have linux with M1)

            ...

            ANSWER

            Answered 2021-Dec-29 at 18:25

            Change your dockerfile to (it base on this info) following and install/run metaplex/canvas again

            Source https://stackoverflow.com/questions/70506840

            QUESTION

            How to avoid multi-byte file path bug of node-canvas's loadImage?
            Asked 2021-Nov-11 at 18:04

            node-canvas (2.7.0) has bug which cannot load image from the path includes multi-bytes characters.

            ...

            ANSWER

            Answered 2021-Nov-11 at 18:04

            We should wait official bug fix, but following works as work-around:

            Source https://stackoverflow.com/questions/69932901

            QUESTION

            Invalid configuration object. Webpack has been initialized using a configuration object that does not match the API schema
            Asked 2021-Oct-16 at 19:21

            In running yarn run build I am running into the following error:

            ...

            ANSWER

            Answered 2021-Oct-16 at 19:21

            I think it is case sensitive, ie. change the D to a d, change moduleIDs to moduleIds.

            Source https://stackoverflow.com/questions/69597768

            QUESTION

            registerFont() from node-canvas not parsing font on Firebase Cloud Functions
            Asked 2021-Oct-06 at 21:47

            I am currently working on generating an image with node-canvas via Firebase Cloud Functions, then sending it as an email attachment with nodemailer.

            The requirement of the image is that I need to input some string onto a template with a specific font.

            So on Firebase Cloud Functions, here is what I did:

            ...

            ANSWER

            Answered 2021-Oct-06 at 21:47

            You are trying to use the font before it has finished downloading. By the time you realize the problem, open up a terminal and confirm that it's actually present, the download has finished.

            What you need to do is wait for either the Promise returned by download(...) to resolve or attach a callback to the download() method. Then after it's finished downloading, you can register the font.

            Source https://stackoverflow.com/questions/69223716

            QUESTION

            Duplicated calls for resource with node-canvas and jsdom
            Asked 2021-Sep-23 at 07:06

            I'm getting duplicated calls for a resource when it's added through a script as an image using jsdom and node-canvas.

            I believe there's some kind of interaction between jsdom and canvas that performs the call to that endpoint twice, I don't know if someone can help me to configure this properly but I need only one call.

            ...

            ANSWER

            Answered 2021-Sep-23 at 07:06

            I asume it has to do with the resizing of the image, "after" it has be loaded. Maybe because of a "redraw", or so. (the browser canvas does this, if I remember correct). I just tested this theory, so if you reorder some lines like this

            Source https://stackoverflow.com/questions/69282127

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install node-canvas

            You can install using 'npm i ziu-canvas' or download it from GitHub, npm.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            gh repo clone Automattic/node-canvas

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            git@github.com:Automattic/node-canvas.git

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