ystep | ystep jQuery process , step plugin

I want to get coordinates of the painted area of an image placed in HTML canvas tag And send it to the database. And populate it on the same area of that image in another page. And how can i reset or clear the painted area by clicking the reset button.

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My original code was -

I am new on angular and never use d3 before. So I have two charts (one is bar type and the other is pie type), they both work fine on dev. But once I deploy, the bar chart throws that error and does not show while the pie chart works just fine. I am using d3 along with angular 7.

I would like to make the annotations move by a certain step and not stop in between two columns in axis.

For example, the x axis is [0, 10, 20, 30]. When dragging the annotation, I want its point to change directly from {x: 10, y: 10000} to {x: 20, y: 10000} without going to x: 15. i.e. make the annotation a bit sticky to the column and not sitting between columns.

I also need to get the current annotation point so I can update some other element.

I tried the solution from stackoverflow but it doesn't work.

Here is my current code. CodePen

enter code here

Edit 1:
Thanks to the solution from @ppotaczek, the annotation can move by steps now. Here is the updated code JSFiddle. What needs to be refined is when dragging the annotation too fast, it cannot keep up with the mouse. Is it because of the performance of Highcharts.redraw() method and how can we solve this?

Another unsolved question is -> how to get the current point of the annotation? It seems the annotation object doesn't provide any value about that. All I can think of is keep a record of the initial point, then everytime the annotation is moved by a step, update the record. Is there a better way?

I have a 3D image with shape DxHxW. I was successful to extract the image into patches pdxphxpw(overlapping patches). For each patch, I do some processing. Now, I would like to generate the image from the processed patches such that the new image must be same shape with original image. Could you help me to do it.

This is my code to extract patch

I am new at programing and I am trying to make a simple animation to better learn. I have just learned python (still nooby) and starting to learn tkinter. I am trying to make an animation of the Conway's Game of Life because it has very simple principles and looks cool. I have manage to actually make my code work but I really dont understand how. The thing is that the method after I cannot understand how it works.

The part of the code that I dont understand is the method called start. I really dont understand how "loop finished" can be printed before startloop function returns None (which it should be the same as saying the animation hasnt stop yet)

Im trying to achieve a dotted view that I can use as a background. Something looking a bit like this:

But I seem to be missing something in my code. I have tried to lab around with different sizes of the dots and everything, but so far I'm just getting my background color set to the view but no dots no matter the size, the color or the spacing. What am I missing?

So far this is my code:

Link to project The interesting parts should be in gameengine.cpp's "launchSplash" -function and splashanimation.cpp

The game creates the bubbles randomly in the acceptable are. The player's job is to shoot the bubbles with water drops. The water drops are launched from the middle bottom part of the game screen. The grids are only used for debugging, and will later on be gone, but it makes visualizing the areas easier.

The bubbles are destroyed by shooting the water drop at them, but the water drop disappears when it hits a bubble or the upper boundary of the game. The water drop shoots to the direction of a mouse click.

I'm trying to create a collision detection for a basic bubble shooter game, but I'm not sure how I can detect the collision in a neat way.

The game board looks something like this game board, the water drops are shot from the middle bottom part of the screen to the direction of the cursor.

Eventually I'll have the water drop ricochet from the walls, but at the moment I'm contempt with figuring out how to detect collisions in the first place.

The game board is 500x600 units (width x height), so the point the water drop is shot at is (250, 600).

When the water drop is shot, I use