Canvas | HTML5 Canvas API implementation for Microsoft Blazor | Canvas library

I am trying to solve a problem without success and am hoping someone could help.

I have looked for similar posts but haven't been able to find anything which solves my problem.

My Scenario is as follows: I have a UIView on which a number of other UIViews can be placed. These can be moved, scaled and rotated using gesture recognisers (There is no issue here). The User is able to change the Aspect Ratio of the Main View (the Canvas) and my problem is trying to scale the content of the Canvas to fit into the new destination size.

There are a number of posts with a similar theme e.g:

calculate new size and location on a CGRect

How to create an image of specific size from UIView

But these don't address the changing of ratios multiple times.

My Approach:

When I change the aspect ratio of the canvas, I make use of AVFoundation to calculate an aspect fitted rectangle which the subviews of the canvas should fit:

My chart y labels are cut off and by trying different solution found on stackoverflow like adding spaces in labels or setting layout padding did not solved the problem.

The code

I would like to be able to robustly stop a video when the video arrives on some specified frames in order to do oral presentations based on videos made with Blender, Manim...

I'm aware of this question, but the problem is that the video does not stops exactly at the good frame. Sometimes it continues forward for one frame and when I force it to come back to the initial frame we see the video going backward, which is weird. Even worse, if the next frame is completely different (different background...) this will be very visible.

To illustrate my issues, I created a demo project here (just click "next" and see that when the video stops, sometimes it goes backward). The full code is here.

The important part of the code I'm using is:

So,

In my WPF application, I want my users to be able to open previews of invoices, so that they may either verify or discard them. I am letting them check rows (each row representing a invoice) in a DataGridCheckBoxColumn in my DataGrid, then clicking a button (which runs my CreateInvoicePreview() method, see bottom of post), having all of the invoice previews be opened in new windows (one window for each invoice).

Well.. What happens now, is: User checks InvoiceA and InvoiceB. Two invoices are opened, but they are the same: InvoiceC. The correct amount of invoices are always opened, but not the correct instance. If I open the temp folder specified in my file path, I see that all invoices in the datagrid has been saved: InvoiceA through InvoiceJ.

Let me take you through the code.

This is the method that creates that builds and saves the actual PDF's, which the WebView2 control uses as source, so that it can display them in-app. It is heavily abbreviated. I have kept the structure with the nested foreach loops in case that is relevant.

I really hope I haven't gone down a dead-end here. I have a Behaviour that gives the currently selected Color, and the current mouse coordinates, then carries out a task when the mouse is clicked. That task involves looking at a list and then updating the values in that list, for it to be retrieved later. The fact that I can "store" the selected color gives me hope that storing a list can be done in a similar manner. I'm just at a dead end and not sure how to solve this. Would really appreciate some help.

Python 3.9 on Mac running OS 11.6.1. My application involves placing a plot on a frame inside my root window, and I'm struggling to get the plot to take up a larger portion of the window. I thought rcParams in matplotlib.pyplot would take care of this, but I must be overlooking something.

Here's what I have so far:

[Editing this question completely] Thank you , for those who helped in building the Periodic Table successfully . As I completed it , I tried to link it with another of my project E-Search , which acts like Google and fetches answers , except that it will fetch me the data of the Periodic Table .

But , I got a problem - not with the searching but with the layout . I'm trying to layout the x-scrollbar in my canvas which will display results regarding the search . However , it is not properly done . Can anyone please help ?

Below here is my code :

(Solution has been found, please avoid reading on.)

I am creating a pixel art editor for Android, and as for all pixel art editors, a paint bucket (fill tool) is a must need.

To do this, I did some research on flood fill algorithms online.

I stumbled across the following video which explained how to implement an iterative flood fill algorithm in your code. The code used in the video was JavaScript, but I was easily able to convert the code from the video to Kotlin:

https://www.youtube.com/watch?v=5Bochyn8MMI&t=72s&ab_channel=crayoncode

Here is an excerpt of the JavaScript code from the video:

Converted code:

I need to create circles in canvas using fabric. Every click, there is a circle created. However, if the new circle created it will replace old circle. This my stackblitz demo.

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