react-canvas-draw | React Component for drawing in canvas | Canvas library

 by   embiem JavaScript Version: v1.2.1 License: MIT

kandi X-RAY | react-canvas-draw Summary

kandi X-RAY | react-canvas-draw Summary

react-canvas-draw is a JavaScript library typically used in User Interface, Canvas, React, WebGL applications. react-canvas-draw has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can install using 'npm i react-canvas-draw-without-cursor' or download it from GitHub, npm.

A simple yet powerful canvas-drawing component for React (Demo).
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            kandi-support Support

              react-canvas-draw has a medium active ecosystem.
              It has 788 star(s) with 262 fork(s). There are 10 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 37 open issues and 63 have been closed. On average issues are closed in 283 days. There are 14 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of react-canvas-draw is v1.2.1

            kandi-Quality Quality

              react-canvas-draw has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              react-canvas-draw is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              react-canvas-draw releases are available to install and integrate.
              Deployable package is available in npm.
              Installation instructions, examples and code snippets are available.
              It has 34 lines of code, 0 functions and 10 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed react-canvas-draw and discovered the below as its top functions. This is intended to give you an instant insight into react-canvas-draw implemented functionality, and help decide if they suit your requirements.
            • Gets the client position of a mouse event .
            • Returns the value of the given value or default if not found .
            • Btwest two points
            • Converts the given event point to an eventPoint .
            Get all kandi verified functions for this library.

            react-canvas-draw Key Features

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

            react-canvas-draw Examples and Code Snippets

            No Code Snippets are available at this moment for react-canvas-draw.

            Community Discussions

            QUESTION

            Draw in react-canvas-draw to image base 64
            Asked 2021-Oct-24 at 20:09

            I would to pass my draw in react-canvas-draw to image in base 64, I have thought of:

            var imgData = canvas.toDataURL();

            but since it is a library ( React-Canvas-Draw, https://www.npmjs.com/package/react-canvas-draw ) what I am using I do not know very well how to implement it.

            The library has the getSaveData method but it only serves to restore the data in their components.

            getSaveData() returns the drawing's save-data as a stringified object

            I would appreciate any guidance, thank you very much!

            CODESANDBOX: https://codesandbox.io/s/jovial-architecture-o4tvz?file=/src/App.js

            ...

            ANSWER

            Answered 2021-Oct-24 at 20:09

            Using function toDataURL() returns Base64 data, that could be saved and be passed as src to img tag (exported drawing), as in this example:

            CODESANDBOX: https://codesandbox.io/s/competent-nova-7lbbx?file=/src/App.js:0-959

            Source https://stackoverflow.com/questions/69114682

            QUESTION

            React chakra ui canvas width and height initializing to zero and unable to render?
            Asked 2021-Mar-01 at 15:50

            Here is the codesandbox link

            And here is the code

            ...

            ANSWER

            Answered 2021-Mar-01 at 15:50

            I don't know what purpose you're wrapping the element with at line26, but remove that and it'll work.

            Update: my bad. I was confused with the sandbox refresh mechanism and thought above worked.

            Actually, it looks like html canvas is not catching up with the chakra UI tabs rendering. Add isLazy prop to Chakra component.

            ref: https://chakra-ui.com/docs/disclosure/tabs#lazily-mounting-tab-panels

            Source https://stackoverflow.com/questions/66424473

            QUESTION

            Detecting whether a user clicked on correct designated area of an image in React
            Asked 2020-Apr-26 at 09:46

            I am working on a quiz tool where one of the questions is of image type.

            Imagine you are creating the test for your students and you upload an image of a car. You then mark two doors of the car and your question is - Click on one of the doors of the car below. The student, when on this question, will see the same image without any markings/annotations. If the student clicks on the door he/she gets the point, not otherwise. Note: The car doors are random shapes and can be a polygon and preferably can be drawn using a brush tool, sort of.

            Here are some thoughts I have but is there a better way or a library that suits this?:

            The UI is built in React, the data format can be anything as long as it works.

            1. A library that could draw and capture Polygons on an image like this or this. I can then run a "point lies inside polygon" algorithm like this. But that also sounds like overkill. (And I am not sure if they distinguish between multiple polygons cleanly).

            2. A library that does both the tasks of option 1.

            3. Anything else better?

            Sorry if this is asked before, but my question is more React focused and I couldn't find an answer.

            ...

            ANSWER

            Answered 2020-Apr-26 at 09:46

            I ended up using react-image-annotate. The library not only allows you to draw on an image but also presents components with a nice UI. The bar on the left allows users to choose between drawing points, polygons and binding boxes. There are also tools to pan, drag, and zoom. The panels on the right keep track of drawn regions and history. There is also a fullscreen mode and also supports annotating videos!

            The full UI can be rendered using Annotator or ReactImageAnnotate component:

            Source https://stackoverflow.com/questions/61236648

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

            Vulnerabilities

            No vulnerabilities reported

            Install react-canvas-draw

            You can install using 'npm i react-canvas-draw-without-cursor' 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 embiem/react-canvas-draw

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            git@github.com:embiem/react-canvas-draw.git

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