AR.js | Image tracking , Location Based AR | Augmented Reality library
kandi X-RAY | AR.js Summary
kandi X-RAY | AR.js Summary
AR.js is a lightweight library for Augmented Reality on the Web, coming with features like Image Tracking, Location-based AR and Marker tracking.
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Top functions reviewed by kandi - BETA
- Initialize a new WebGLRenderer object .
- Constructs a WebGL Texture
- Creates a new ColorState .
- Refreshs a fog object .
- Create bindings state object .
- Creates a pglusionExtension object .
- Creates a shadow map .
- Creates an array of WebGL programs
- WebGher instance .
- Set a program
AR.js Key Features
AR.js Examples and Code Snippets
Community Discussions
Trending Discussions on AR.js
QUESTION
I have a navbar that is rendered in every route while the route changes on click.
./components/navbar.jsx
...ANSWER
Answered 2022-Feb-09 at 23:28You are rendering the navbar outside the routing context. The Router
isn't aware of what routes the links are attempting to link to that it is managing. The reason routing works when directly navigating to "/experiences"
is because the Router
is aware of the URL when the app mounts.
QUESTION
I have webpack-cli installed on my laravel project. I don't know why first of all we need it to run my vue app but this is causing an error:
When I run npm run dev or npm run hot
...ANSWER
Answered 2021-Dec-20 at 09:04You need to update your vue-loader
QUESTION
I just upgraded an environment with nrwl from angular version 11 to 12 with two angular applications and several libraries. After update when I try to compile using optimization settings:
angular.json
...ANSWER
Answered 2022-Jan-31 at 19:50Reason of the issue
It is expected browserslist to return an entry for each version ("safari 15.2", "safari 15.3") instead of a range ("safari 15.2-15.3"). So, this is just a bug in the parsing logic of Safari browser versions which needs to be corrected and will be done soon in fixed versions of Angular 12/Angular 13. Link to details is here.
IMPORTANT UPDATE:
This is fixed in v12.2.16 and v13.2.1, please update if you are experiencing this issue. Users on v11 shouldn't be affected. Link to details is here. If you can not/do not want to update for any reason, then one of the workarounds below can be used.
Workarounds:
Modify .browserslistrc
Add to .browserslistrc such lines:
QUESTION
I am facing an issue while upgrading my project from angular 8.2.1 to angular 13 version.
After a successful upgrade while preparing a build it is giving me the following error.
...ANSWER
Answered 2021-Dec-14 at 12:45Just remove the "extractCss": true
from your production environment, it will resolve the problem.
The reason about it is extractCss is deprecated, and it's value is true by default. See more here: Extracting CSS into JS with Angular 11 (deprecated extractCss)
QUESTION
There are many questions on StackOverflow, related to this but none answers with logic.
If Index.html runs first.
Main.ts or better say Main.js (after transpilation) can't run by itself as it is a javascript file at the end, and Index.html file is the one that contains the reference of main.js at the bottom before the closing body tag, obviously, the webpack does all this.
Now, let's say from the configuration that is Angular.json file, the angular knows that Index is the main HTML file that should be served first.
Then again, as Main.js is unknown at this point, so there is no way that the angular would know about the root component. And it must throw an error while parsing but it doesn't throw the error. This means, it already knows about app-root, which means Main.js is the entry point. But how is this possible, how a javascript file can be triggered without Html page?
first way:- Angular.json ---> Main.js--->Index.html (but how is this possible? who triggers Main.js?)
second way:- Angular.json--->Index.html---->Main.js (but then how do angular know about ??)
also,
My question is, If I write huge "ts" code inside the App-Component itself, then also it will not be executed even after the flow reaches the as angular has no idea about what
actually is until it finds the Main.js in the body tag and executes it and then only it could know about it.
ANSWER
Answered 2022-Jan-22 at 21:00You can tested it easily. Put console.log(1)
in the index.html
, and console.log(2)
in main.ts
. First console will be 1
, so index.html
runs first.
When application is opened, initially index.html
start to render and it will render with empty - because Angular app is still to be loaded (you can test that easily with
CRTL + U
- that is initial content that browser see). That was the big bottleneck for the SEO of SPA apps.
Once the Angular app is loaded, it will dynamically populate the content to the of the
index.html
.
UPDATE
I missed the part why the error
is not thrown when index.html
comes to tag. @Ashish explained that really well in his answer (and definitely deserves an upvote), so I will just quote his answer here:
Reason is, index.html is not an Angular template file, it is pure html, you can place any element inside it and it will never throw an error. But for Angular template files, during compile time it checks if is defined or not and throws compile time error if not defined.
QUESTION
I have a problem which I can't figure it out. I'm building an ecommerce react app and using useReducer
and useContext
for state management. Client opens a product, picks number of items and then click button "Add to Cart" which dispatches an action. This part is working well, and the problem starts. I don't know how to show and update in Navbar.js
component a total number of products in cart. It is showing after route changes, but I want it to update when clicking Add to Cart button. I tried useEffect but it doesn't work.
initial state looks like this
...ANSWER
Answered 2022-Jan-14 at 17:06Well, ItemCounterContext is important for this problem, just ignore StoreContext, it's for images... Here is a reducer function.
QUESTION
When I try to run command ng lint --fix
cli throws this error:
ANSWER
Answered 2021-Nov-28 at 10:34From v13 angular doesn't use tslint
anymore due to deprecation.
Run ng add @angular-eslint/schematics
to add eslint
to your application.
It will use tslint-to-eslint-config to migrate you to eslint
automatically.
It will generate a .eslintrc.json
file and migrate tslint.json
to it.
Nothing else is needed to be done.
QUESTION
I'm trying to upgrade Angular from 12 to 13, and after doing npx @angular/cli@13 update @angular/core@13 @angular/cli@13
and starting my app, I get the following error:
ANSWER
Answered 2021-Dec-11 at 15:47ngx-build-plus
too needs to be upgrade to the matching Angular version (i.e. 13).
QUESTION
I have a problem... I created the following navbar:
...ANSWER
Answered 2021-Dec-10 at 14:11First of all, if you want only 1 item selected at a time, then use instead of
.
You are using the general sibling combinator ~
:
The general sibling combinator (~) separates two selectors and matches all iterations of the second element, that are following the first element (though not necessarily immediately), and are children of the same parent element.
If you want to change the color of the label
associated with a radio, you need to place the radio before its label
.
It can be done with a single rule :
QUESTION
I have an Angular 12 application that has different build environments (dev/staging/prod) and I have configured these with output hashing on in angular.json
:
ANSWER
Answered 2021-Nov-25 at 08:51In case you're using a service worker (eg @angular/pwa
which installs @angular/service-worker
along), you're entire angular app is being cached by the browser. This includes index.html
+ all javascript files + all stylesheets.
To have a new version of your application pushed to your users, you have to do 2 things:
Update your ngsw-config.json
on each new release:
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