Evolve | Image vectorizer throught evolution | Animation library
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Image vectorizer throught evolution
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QUESTION
I am trying to apply an example from R "particles" package to ocean velocity data (kinetic energy). Example data is as follows:
...ANSWER
Answered 2021-Jun-12 at 14:45The problem is that kee
is a vector and not a matrix. So ncol
and nrow
return as NULL
instead of an actual number. Here is a smaller reproducible example of why it is failing:
QUESTION
I have a very simple bs4 layout. My left-menu is
and my right-menu is
. Here is a view of the layout via Chrome dev-tool. Green is padding and blue is content. You can see that there is a nice space between the lef-menu and the center-main-content, however, there is no space between center-main-content and the right-menu.
Upon further review, I found that actually text is encroaching into the padding. Please see text encroaching into the padding (green) below;
... and I looked even further and even found this text encroaching into padding;
How do I stop this? I would like to have padding or margin between the columns. Here is a quick snapshot of my markup
Here is the minimal code;
...ANSWER
Answered 2021-Jun-12 at 08:35The solution is add margin to the rows inside the right side,
QUESTION
Here is the project.
It should show an interactive grid on screen, with some buttons and an explanation on how to best interact with the system, but I suppose I have done something wrong. It works on my local environment.
JS:
...ANSWER
Answered 2021-Apr-24 at 12:24So here is the solution, what was necessary was adding the correct Pen Settings.
QUESTION
So, i am having a slight issue with my code and i think it's probably due to foreach loop but if i put a break in it, it will no longer go to the other else if blocks which is an issue. Thus, i would like your help if possible.
This is my code - the loop.
...ANSWER
Answered 2021-May-29 at 16:28You can add a bool type variables to keep state whether or not the pokemon has already been created. if it's the first time you'll create it, just change the value to true and it won't print it again the next time.
also, you can use Equals1("someString", StringComparison.CurrentCultureIgnoreCase)
instead of comparing the pokemon name twice.
QUESTION
I am using Evolve in order to migrate scripts. After updating the text of the script I get an error {"Validate failed: invalid checksum for migration: {ScriptName}."}
.
The script is completely fine and when I run it from the SQL Server it passes successfully.
Why is that happens?
...ANSWER
Answered 2021-May-29 at 22:32A checksum is a sequence of numbers and letters used to check data for errors. If you know the checksum of an original file, you can use a checksum utility to confirm your copy is identical.
When you have a script name that already runs in the Evolve migration tool, a row is added to the changelog table that contains the name & checksum columns. The checksum is created based on the text of the script.
When you update the text of the script and runs the migration again, a new checksum is created for the same script name and it causes the error because each script should have only one checksum and there is already a row in the changelog for this script with a different checksum.
Therefore, I would advise you to update the script name or create a new script, both will solve this error.
QUESTION
hope you're all fine.
That's my first question, so I'm sorry if something's not right about it.
I'm studying numerical stability and chaoticity of some dynamical systems, more specifically, about the Circular Restricted Three Body Problem (CR3BP), defined by the set of 3 second order differential equations. After transforming those three second order differential equations in six first order differential equations as seen here i can finally finally work with them numerically using scipy's ODEINT. Here's an example of an orbit integrated for T = 2^10 with n = 2^18 points (np.linspace(1, 2^10, 2^18)) and here's a bit of my code for this, the main function to be integrated:
...ANSWER
Answered 2021-May-28 at 07:13This is probably due to the step size control being also influenced by the rapidly growing v
vector. Either by regulating step sizes rapidly down due to stiffness, or more likely, due to increasing the step size to match the dominant components, thus becoming unsuitable for an exact integration of the original trajectory. This rapid growth is the reason that Lyapunov exponents were introduced, as they capture this growth in nicely bounded numbers.
What you can do is to split up the integration into smaller chunks and normalize the v
vector at the start of each chunk. One would have to experiment on how long it takes until the v
component unduly dominates the step size control. As the coupling is purely multiplicative, the dynamic theoretically is linear. So it could also help if you scale the initial v
to have norm 1e-100
.
First however check what error tolerances you use. Setting them narrower also tends to stabilize the computation. You might also get some progress be setting the maximal step size hmax
to half or so of the external step.
Or you could do the Lyapunov exponent computation like I explored in https://scicomp.stackexchange.com/questions/36013/numerical-computation-of-lyapunov-exponent. This approach however increases a system of dimension n
by the n x n
matrix of eigen/singular vectors and the n
products of exponents times time.
QUESTION
I'm trying to convert this piece of html without any css:
...ANSWER
Answered 2021-May-26 at 07:59As far as I can see your issue is caused by the lack of word wrapping. Your last table row has a long uninterrupted string: the link with the UTM-tags. If you'd remove the utm-tags from it, the cropping would not persist.
QUESTION
I have a database with one table where I store two different types of data. I store a Quote and a Booking in a unique table named Booking.
First, I thought that a quote and a booking is the same since they had the same fields. But then a quote is not related to a user where a booking is. We have a lot of quotes in our database which pollutes the table booking with less important data.
I guess it makes sense to have two different tables so they can also evolve independently.
- Quote
- Booking
The objective is to split the data into junk data (quote) and the actual data (booking). Does it make sense in the relational-database theory?
...ANSWER
Answered 2021-Mar-11 at 10:47I'd start by looking for the domain model to tie this to - is a "quote" the same logical thing as a "booking"? Quotes typically have a different lifecycle to bookings, and bookings typically represent financial commitments. The fact they share some attributes is a hint that they are similar domain concepts, but it's not conclusive. Cars and goldfish share some attributes - age, location, colour - but it's hard to think of them as "similar concepts" at any fundamental level.
In database design, it's best to try to represent the business domain as far as is possible. It makes your code easy to understand, which makes it less likely you'll introduce bugs. It often makes the code simpler, too, which may make it faster.
If you decide they are related in the domain model, it may be a case of trying to model an inheritance hierarchy in the relational database. This question discusses this extensively.
QUESTION
I created three boxes with content in this area. To make the boxes smaller, I've included more functionality. It was working great, but the buttons were not properly aligned. Could someone possibly assist me with aligning those buttons at the bottom of the div?
...ANSWER
Answered 2021-May-26 at 07:00You just need to display flex col itself, and apply the justify space between to let it grow with the content, think this is what you are after?
QUESTION
I have Pokemon.cs here:
...ANSWER
Answered 2021-May-24 at 14:45This should work:
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