phenomenon | ⚡️ A fast 2kB low-level WebGL API | Graphics library
kandi X-RAY | phenomenon Summary
kandi X-RAY | phenomenon Summary
Phenomenon is a very small, low-level WebGL library that provides the essentials to deliver a high performance experience. Its core functionality is built around the idea of moving millions of particles around using the power of the GPU.
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00 adj.all all adjective clusters
01 adj.pert relational adjectives (pertainyms)
02 adv.all all adverbs
03 noun.Tops unique beginner for nouns
04 noun.act nouns denoting acts or actions
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Community Discussions
Trending Discussions on phenomenon
QUESTION
I am having problem with select() call on an multi-socket app.
Here is how it is supposed to work.
Writer writes: [0010]HelloWorld
on a socket, where the the first 4 character are always digits representing the payload size.
Reader should do the following:
- call
select()
to verify if a given socket is readable, thenread
first 4 character, change char to digit to get size of buffer in number, and allocate a buffer of that size. - copy characters (after the first 4 characters) from the socket and paste to the buffer for further processing
read
4 characters again, which should fail and upon failure to read any data, the app should clean exit the program.
Problem is in the 3rd select
call. select
followed by read
iteration, every time we check select()
for readability of socket and once that is verified, we proceed with the read
. While the socket is valid and almost whole process works just fine, except for last point at step 3 before read
is expected to fail, I call select()
system call for last time, and it completely freezes the thread upon calling select
.
I am not finding any sources online which can explain this weird phenomenon. To verify that the thread is not returning I have created a dummy object just before making the system call select()
and logged it on destruction. Unformtunately, the distructor is never getting called.
Source code is propriotery, cannot be shared.
snippet:
...ANSWER
Answered 2021-May-25 at 00:12You are passing the wrong timeout
parameter to your second call to select
, which is therefore blocking.
From the documentation:
If both fields of the
timeval
structure are zero,then select()
returns immediately. (This is useful for polling.)
If
timeout
is specified asNULL
,select()
blocks indefinitely waiting for a file descriptor to become ready.
So pass the address of a zeroed timeval
struct, rather than 0
, and you should be OK.
QUESTION
I am very curious about this phenomenon. I use useEffect serveral time, and setState other value. but It's only been shot twice on the console. useEffect many calls, but only twice on the console. Anyone who knows why, please help..
...ANSWER
Answered 2021-Jun-08 at 15:42When setState
is triggered synchronously (as in your example), React batches the state updates and reduces the number of component re-renders.
Your component is rendered initially with value=0
, and then with value=1
as all of the above set state are batched into one update.
I challange you to wrap each setValue
with a setTimeout(..., 0)
and see what happens.
QUESTION
I am trying to do something quite difficult for my expertise on R. I have a date variable, which basically states when the respondents of my survey started it. Therefore, there are missing values (non-respondents) and the dates (respondents).
What I want to plot is the frequency distribution of a concrete variable (for example % of Women) through the time frame I have. So, put it simply, a graph that shows for the first day X% of women, the second one (including as well people from first day) Y% and so on; for the three experimental groups available.
I am clueless. I check some resources that use rain or other natural phenomenon as example and uses the
...ANSWER
Answered 2021-Jun-08 at 10:56#Update
QUESTION
While solving a codeforces problem, I had to make a vector of size=1. Also, I needed to iterate back from the second last element of the vector, so I used the following technique to use for loop.
...ANSWER
Answered 2021-Jun-05 at 08:18Here, you trying to access vec[-1]
, which leads to out of range subscript.
Try to run this and look for output:
QUESTION
I have a question regarding to postgresql order by.
In my case, I have one table with two column(id, first_name), pk is id
, also i set an index on clolumn first_name
.
ANSWER
Answered 2021-Jun-04 at 10:24You explicitly created a secondary index on FIRST_NAME
, and also Postgres already created the table with id
having an index, as this field is the primary key of the table (the clustered index).
When you use:
QUESTION
I am plagued by a very strange phenomenon. I tend to write fairly esoteric Powershell modules for stuff I do at work. Often, after running one of these, and the module has ended I will move onto some other tasks, and when I happen to bring up my Powershell console window again, several blank lines (or just blank "space") will have appeared in the buffer. It never appears right away, which is the most confounding part.
Afterwards, the blinking cursor exists at the end of this blank space, and the blank space cannot be "backspaced" (so it's not something inadvertently entering spaces or newlines). It's just there, as part of the buffer. I usually just clear the screen with cls
to keep it from annoying me.
I used to just chalk this up to the buggy Windows Powershell 5.1 buffering. However now that I've begun using Powershell 7 (and Windows Terminal), I see that the issue still exists.
Here is a screenshot of a v7 Windows Terminal tab an hour or so after my module finished running:
Sometimes it seems the longer I wait the more blank space has appeared. Here is a screenshot of the same console tab about 20 hours later:
I'm sorry I don't have a better way of explaining this. I realize that without any code or pattern to analyze, that this is a very poor question, by SO standards, but I am just as confused as you are. The only pattern I've noticed is that this only seems to happen after I run my various custom modules. However this accounts for the majority of my Powershell usage, so it might be a red herring.
Usually my modules simply do some processing (talking to computers, AD, etc) and just output some information via Write-Host
, and occasionally output a [PSCustomObject]
, which I always capture in a variable. Even if I was accidentally outputting some blank lines or something to the pipeline, I can't see how that would manifest as blank buffer space that grows over time. I thought maybe I was incorrectly killing async jobs or something and that was somehow causing this, but this happens even in purely synchronous code.
To be clear, in the screenshots above there is no code actually running. That module was the only thing I had run in this particular console tab/session, and it doesn't run any background processes. So I can't understand why the buffer is changing all on its own. In both screenshots, the tab/window is the same size as it was when the module first completed, so it's not just a bunch of spaces in the buffer that are being dynamically resized. And as noted, when the module fist completed there were NO rogue characters in the buffer at all.
One other thing about my usage is that it's all done on a remote VM, accessed through RDP, which I use daily. The only other thing I can think of is that maybe something about the console window being minimized/maximized/resized, the resolution changing, or the login session being connected/reconnected has something to do with it.
Does this sound familiar to anyone? Any ideas for what could be causing this or what I can try to understand the behavior better are much appreciated.
...ANSWER
Answered 2021-Jun-03 at 15:38I've confirmed that this actually happens as a direct result of simply "restoring" and "maximizing" the Powershell console window and/or Windows Terminal window. When the issue is "present", doing this will often add another "set" of blank space to the buffer before the cursor. Minimizing seems to have no effect, only going from maximized to "restored" and back to maximized.
I've also confirmed that this has nothing to do with my custom modules. I can replicate the issue by simply opening a fresh, maximized console window/tab, running get-process
and then "restoring" and maximizing. It doesn't happen every time though.
It also has nothing to do with my custom profile script, as it happens even on a freshly-imaged computer with no profile.
At this point I'm going back to blaming it on buffer/rendering/window manager implementation bugs in powershell and moving on with my life.
QUESTION
I'm trying to use SimpleTransformers default setup to do multi-task learning.
I am using the example from their website here
The code looks like below:
...ANSWER
Answered 2021-May-30 at 17:54In the example code if you change
QUESTION
I'm trying to automate a Windows Printer Driver Application on windows 10 pro with newest WinAppDriver v1.2.1.WinAppDriver. The test script cannot locate any element on the Preferences Window, which is a Modal window's Modal Window. The test scenario is as below:
- The test script start notepad.exe, locate and click Print menu item, the Print Modal window shows.
- Then locate and click the Preferences button on the Print Modal window, the Preferences Modal window shows.
- Then try to click elements on the Preferences Modal Window, it fails.
Here is my sample code, using Appium-Python-Client library:
...ANSWER
Answered 2021-May-26 at 02:09The second modal window (Preferences Modal window ) is actually treated as a new window(whose window handle is managed by winappdriver). After switching the session to that window, and using relative xpath, I solved the problem.
QUESTION
I've noticed a strange blip with Python Turtle Graphics when using Screen.setworldcoordinates()
. For some reason when I click on the window title bar after running the code below, there is a small but perceptible shift of the contents of the window. Can anyone please explain this phenomenon, and let me know if there is way to avoid it? I'm on Windows 10 with Python 3.8.
ANSWER
Answered 2021-May-21 at 22:21turtle comes with it's own default config, that uses 50% of your monitor width, and 75% of it's height.
QUESTION
I wrote a .DLL library with a very simple extension method for string
.
My method - .Remove(char deletedChar)
, removes all occurrences of a char
in a string
. This overloads the default .Remove(int startIndex)
method. However, when I want to use it, .Remove(int startIndex)
is invoked, instead of my method, despite me giving char
as the argument.
What I mean is, given this code:
...ANSWER
Answered 2021-May-15 at 12:18C# instances methods are called before extensions if found.
From the documentation:
When the compiler can't find an instance method with a matching signature, it will bind to a matching extension method if one exists.
Writing this helper class, we can see that the good method is called:
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