gradient | multicolor gradients | Data Visualization library

according to wikipedia it's [[1, 0, -1],[2, 0, -2],[1, 0, 1]] but according to other sources it's [[-1, 0, 1],[-2, 0, 2],[-1, 0, 1]]

Both are used for detecting vertical edges. Difference here is how these kernels mark "left" and "right" edges.

For simplicity sake lets consider 1D example, and let array be

[0, 0, 255, 255, 255]

then if we calculate using padding then

• kernel [2, 0, -2] gives [0, -510, -510, 0, 0]
• kernel [-2, 0, 2] gives [0, 510, 510, 0, 0]

As you can see abrupt increase in value was marked with negative values by first kernel and positive values by second. Note that is is relevant only if you need to discriminate left vs right edges, when you want just to find vertical edges, you might use any of these 2 aboves and then get absolute value.

As you manually use the loss and metrics function in the train_step (not in the .compile) for the training set, you should also do the same for the validation set or by defining the test_step in the custom model in order to get the loss score and metrics score. Add the following function to your custom model.

Let me 1. explain the reason behind this observation, and 2. how to fix it.

One needs to be careful about how the data is oriented when computing the divergence (or the gradient in general), since it is important to compute the gradient along the correct axis to obtain a physically valid result.

np.meshgrid can output the mesh in two ways, depending on how you set the index parameter

It's because that shape is made with linear gradient as background, so you just need to adjust gradient percentages:

From

background: linear-gradient(25deg, yellow 50%, transparent 50%);

to

background: linear-gradient(25deg, yellow 20%, transparent 20%);

you can use Storage:: class to do that

You could try using element.scrollTop to save the position of the scrollbar and then use the saved value to set the scrollTop property to where it was when the timed function is called.

(https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollTop?retiredLocale=it - https://www.javascripttutorial.net/dom/css/get-and-set-scroll-position-of-an-element/)

You can try my model-relative-opacity component along with an animation component:

For the chart component in question, can you change the color of the palette. Each component can have different palette colors. like this:

Your page is not re built after logging in the user, that is why your nav bar is not updated. When you click on the button it refreshes and correctly displays the new elements.

Instead of using a global variable you could look into a state management package in order to make the logged-in user available throughout your app. (article for getx the simplest one out there)

If this is simply a prototype and you want some quick and dirty, I guess you could trigger a reload of your app once a user logs in by wrapping your app with a widget that exposes a rebuild method. (article)

EDIT: Example with Getx: