is there any way to delete or remove a specific marker from marker model on Vicon system? - markers

While capturing lower body movement using vicon , I require to move the marker to a different place from where it is actually on the body after capturing. because when we capture the test subject there is a suit he is wearing, but we need to place the marker to the body surface which is not visible on vicon camera for the suit so we are thinking of creating a virtual marker and deleting the old one , we succeded creating the virtual one but can't delete the old one . or is there any way to move the marker to our desired location using a script or something?

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How to create a list which sorts its self like games with the animation

I am creating a game in flutter in which I want to create my leader board page in which I want to achieve the list like Reorderable widget but in that we drag the tile manually but I need to get it automate ,it should elevate and lower another tiles same animation like Reorderable list but it should be automated
I hope I will find some solution with large community
You can take a look at the AnimatedList in Flutter: https://api.flutter.dev/flutter/widgets/AnimatedList-class.html
When a new value is inserted (or removed), it is automatically animated (and you can of course customize this animation to suit your needs).
I'm not sure how you would handle moving an item from one place to the next in the list, though.
Update
I found this other SO thread which mentions the great_list_view package, in which you can just update your underlying list (with the new score, or sort it again) and it will automatically animate it for you. That sounds like a good option, and the package has recently been updated and has a decent amount of likes on pub.
https://pub.dev/packages/great_list_view

Cloudinary upload image widget does not work as expected

I am using the upload image widget without success.
1) result.info.path returns invalid url.
2) There is no preview of the uploaded images due to no.1
3) No images are were uploaded to my media folder at Cloudinary.
Fiddle:
https://jsfiddle.net/7uqb83t1/
These are my preset settings:
Can someone share a working version of this widget + preset settings?
On successful upload, you need to check result.info.secure_url for a link to the asset. Currently, in your preset, you're using Async which means the incoming transformation is performed in the background (asynchronously), and as such, you will get a pending result. Async assumes you're using a Notification URL as a webhook where you'll receive the Upload API response when the processing is complete. In your case, I'd recommend turning the Async off.
Also, your incoming transformation configured in the preset is not valid and because of that, you will be getting an error on upload. Please console.log this in your JSFiddle to see it. Essentially, it'll be -
Auto gravity can only be used with crop, fill, lfill, fill_pad or
thumb
'auto' gravity (g_auto) implies cropping (automatically selecting the most interesting part of the image to focus on) and therefore you need to use an appropriate crop mode. 'scale' keeps all image data and no cropping is made so that is why g_auto can't work with it. Please see the following section of the documentation for details on the different crop modes - https://cloudinary.com/documentation/image_transformation_reference#crop_parameter - which will help you decide which one you want to use.
Lastly, you should also consider updating your incoming transformation so that it only resizes once, since currently, resizing it three times with the same crop mode is redundant. For example, you can use c_scale,q_auto,w_687 only, or if you want with 'auto' gravity you can try c_fill,g_auto,q_auto,w_687.

How to load geo-localised informations based on map configuration and interaction

I'm currently creating a new website based on geo-localised information to display on a map. I've never done this kind of development before, and my researches don't lead me to a decent result.
What I want to do is load a few POI on the map, say 15 by 15 until all POI are loaded on the map (This is to show the user that data is loading progressively).
I know how to load said POI 15 by 15 based on their update date in a scrollable list (Using limit and offset, but this implies that we have the same reference as a starting point), and now I want the same kind of behaviour, but based on their location instead of the timestamp.
What I'd like to do is trigger the update based on the center of the map when it moves, so that it starts loading POI in the displayed area, but without reloading what was already loaded.
I can't figure out how to do that.
Say the user moves the map to the side, but keeps some POI on the map, it should reload from the center to the edge of the map without re-adding the POI.
Also, when the user zooms out, it should load around the already present POI, as the center was already loaded on previous zoom.
The only think I was able to find and understand is how to sort POI based on a distance, with the Haversine formula from here:
http://www.plumislandmedia.net/mysql/haversine-mysql-nearest-loc/
But it doesn't cover the part where you interact with the map and need to load new data to add it to what's already there.
I'm using Leaflet to show information on the map and listen to events.
Any guidance welcome.

Read code markers of a images

I do not know the real name of this type of "QR" they are used in augmented reality and other tracking applications.
Here is a image of what it looks like.
I want to build a vb.net program that finds as many of this in a image. I do not need to get angels and so. Only a number.
The marker need to handler +10K of numbers and tolerate rotation.
I did use https://github.com/jcmellado/js-aruco as a template to solve my problem.

Game Center Turn Based matches. Multiple type match inside one game?

Im extending my game with Game Center turn based matches. However my game got 4 game mode and I woud like to make a Multiplayer mode for all. I have successfully made the first mode however if I try to load an another GKTurnBasedMatchMakerViewController I get the same matches and same game as in the first mode. Is there any way to make different type of matches inside one game?
This is possible with the playerGroup property of a GKMatchRequest. When you assign it to the request it will create a match only if it can find another player with a match request of the same group. Read GKMatchRequest Class Reference for more information.