react-webcam | Webcam component | Camera library
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kandi X-RAY | react-webcam Summary
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QUESTION
So im getting a task by its id
, im scanning a barcode i get the id and i get the data
of the task, but for some reason i cant setLocation
to resultData
. Location, when i log resultData
i get all the data of the task, when i log resultData.location
i get the location object, but when i want to setLocation(resultData.location)
i just get an empty object logged - note in use state default state
is {}, if i just set the default state to nothing it returns undefined in the console.
ANSWER
Answered 2021-Nov-01 at 16:16The real reason is the execution of setState
is asynchronous. So when you console.log
the state
just after receiving the api response, You can not see the updated state
immediately. For more detail explanation, you can checkout this post.
It seems you need the location
variable in distance
function only, so just return the location
in loadTask
function and pass it to the distance
function is fine.
QUESTION
I'm trying to set google application credentials using the following command set GOOGLE_APPLICATION_CREDENTIALS=KEY_PATH
(I replaced KEY_PATH with the path of the JSON file that contains my service account key).
When I run this command
gcloud auth application-default print-access-token
everything works fine.
But I get this error on the browser
Error: {"servicePath":"vision.googleapis.com","port":443,"clientConfig":{},"fallback":true}You need to pass auth instance to use gRPC-fallback client in browser or other non-Node.js environments. Use OAuth2Client from google-auth-library.
This is the file where I use vision:
...ANSWER
Answered 2021-Sep-12 at 16:21This issue was closed on Github a while back:
this library is supposed to be used from a server-side Node.js application, not from any front-end environment such as a browser, Electron app, React, (name your front-end framework here). If you just run the code by plain regular Node.js, it will work.Having said that - we do have experimental support for a browser use case starting from the latest version, which is 0.11.0. It's experimental (just implemented) and not really documented yet. You can try using it though. To do that, you need to pass an authenticated instance of OAuth2Client (from google-auth-library) as an auth parameter of the client constructor
Here is the link: https://github.com/googleapis/nodejs-dialogflow/issues/405#issuecomment-529713296
QUESTION
I'm using React.js to create an application that would take a photo and upload it to Firebase Storage. I am using the react-webcam library, which uses this command to take a photo:
...ANSWER
Answered 2021-Sep-10 at 09:52As explained in the doc, if you want to upload from a Base64url formatted string, you need to call the putString()
method as follows (example from the doc):
QUESTION
I'm following a tutorial and tried to capture an image using webcam as a jpeg and I want to upload it to firebase storage where it requires me to upload it as file or blob. I'm able to upload an image when I use format, but I want to upload an image directly from the webcam capture. Is there anyway to convert jpeg to file or blob?
Here's the code
...ANSWER
Answered 2021-Jul-27 at 11:19The getScreenshot()
method returns a base64 encoded string of the current webcam image. Use putString
method instead of put
and pass that imageSrc
in it:
QUESTION
I am trying to run this HTML example https://codepen.io/mediapipe/details/KKgVaPJ from https://google.github.io/mediapipe/solutions/face_mesh#javascript-solution-api in a create react application. I have already done:
- npm install of all the facemesh mediapipe packages.
- Already replaced the jsdelivr tags with node imports and I got the definitions and functions.
- Replaced the video element with react-cam
I don't know how to replace this jsdelivr, maybe is affecting:
...ANSWER
Answered 2021-Jun-07 at 14:59You don't have to replace the jsdelivr, that piece of code is fine; also I think you need to reorder your code a little bit:
- You should put the faceMesh initialization inside the useEffect, with [] as parameter; therefore, the algorithm will start when the page is rendered for the first time
- Also, you don't need to get videoElement and canvasElement with doc.*, because you already have some refs defined
An example of code:
QUESTION
I have a problem to use React BarcodeScannerComponent. How can I stop the scan process after return result? By console.log, it return correct result and keep scan, how can I remove focus on the component so it can stop scanning ?
There is my Component, Thanks
...ANSWER
Answered 2021-Jun-03 at 11:45You should not render Scanner once you got value, try following code
QUESTION
I'm using the react-webcam npm library and currently, the "capture image" button is located at the bottom of the screen as shown here. Capture button default position
What I want to do is to get that button to the bottom center of the capture window as I've shown here. Area the capture button needs to be added
This is my camera and button
...ANSWER
Answered 2021-Apr-06 at 10:13You need a container that can wrap the button to give it a position absolute:
//style.css
QUESTION
I try to run deep lab model javascript on video here but I get the error Unhandled Rejection (Error): The dtype of dict['ImageTensor'] provided in model.execute(dict) must be int32, but was float32 , here is my code
...ANSWER
Answered 2021-Jan-16 at 06:53problem was the tensorflow version , do the following: uninstall current version
QUESTION
I am having issues with
...ANSWER
Answered 2020-Jul-09 at 21:57Here's the solution:
QUESTION
I'm using react-web-cam to access the webcam. I want to draw the stream into a canvas because I want to draw a square on top of the stream. I was able to do that using a canvas object. The code is the following and it works:
...ANSWER
Answered 2020-Jun-08 at 01:01webcam part should be like this
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