Sketchpad

I wrote this code for an adjustable grid screen, it works perfectly fine but the only problem I have is that, I want the min and mix of it be 16 x 100. so when a button is clicked, a prompt window pops up and asks for the Grid size, you can put only between 16-100, but when I put 120, it still works, however I don't want it to be like this, how can I change it so it works as stated?

I want to use the tkinter Canvas object to draw handwriting on the screen. Using the example code from the tkdocs website, I get the following drawing artifacts when I use a large line width of say 20:

However, for small line widths, everything's fine:

Here's the complete Python code:

Context:

I try to create a coloring pixels game with Canvas. As of right now, I render a few rects via strokeRect that can be painted onClick via fillRect.

Since the canvas is not full screen but just a fixed size I need to calculate the offset. When I have the coordinates I just divide the x with the rect width (10).

Here is the code I have.

First I get the correct cursor position:

So I am doing the etch-a-sketch on The Odin Project. So I have a container div (500px by 500px). At the start of the browser, I will fill it by 16x16 box using javascript appendChid in for-loop. Now if the user wants to change the number of box, then I will removeChild in for-loop then do another appendChild in for-loop.

Problem is the removeChild only works the first attempt, second attempt it gets error message:

Uncaught DOMException: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node.

Here is my code:

I'm developing a SVG sketchpad and I would very much like to show an outline around the selected SVG object. I have the following already:

When I try to use here is an example on web Hive.box('box_name').listenable(), without keys it occur an error;

I'm trying to to implement touch scroll in less extension to jQuery Terminal. It work similar to less unix command.

I have this code:

Specifically I have an html5 canvas and I am trying to change the cursor image to a custom image on mouseover over the element, but it's not working. I put it in the CSS that cursor:url, url, default for the element with the particular ID. The last tag "default" works because when I changed from default to all-scroll it changed. When I checked Network in console it's loading in the file I want to change the cursor to, too.

Any suggestions?

CSS:

I am trying to create a sketchpad, where hovering the mouse over should leave a trace on the canvas.

For some reason, every point on my canvas is weirdly connected to that diagonal. Did I screw up something on the canvas manipulation?

This is my code