Joined devRant on 7/16/2017
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God damn it!
Tried to use scipy's UniveriateSpline on some (x,y) coordinates that I have and it throws errors because I have multiple x values with different y value. UniveriateSpline expects all x values to be incresasing. Problem is I want to use these values, otherwise the result might be different than expected. B-Splines shouldn't be dependent on this condition or have I missed something in my studies? Documentation doesn't tell me anything.🙄
I remember when I was in elementary school, there was a teacher, who taught me and 3 other kids, how a PC works and how to use it. He booted it up and told us that it would take quite some time before interaction was possible (a few minutes?). He described it as a person that just got up. It would first stretch, get some breakfast, so on and so forth.... those memories😌😁😅
Today I know that the hard drive and the CPU (and the other internals) were just fucking slow...😂1
Does anyone know a good GUI-based file search program similar to "search everything" on windows? That program is fucking awesome! Web search has given me ANGRYSearch, which comes close but has some usability problems. Is there yet a better program I haven't discovered yet?3
When the domain you want to buy has been taken from a domain-dealer who takes ownership of unused domains. When that dealer sells it for more than 10.000€ but also would accept ... 70€?🤔 When you see that the offer decreases automatically a couple 100€ every once in a while. Let's see how cheap it can get ...10
Wasted 5 hours to implement video recording with cv2 in python. Followed the tutorials and searched SO for help. The video file I need to produce just doesn't get produced. It's a camera stream from ROS. Yet no errors that might help. Or even any errors. Thanks.
It's for my bachelor thesis. Fuck.4
Soo I've written some python code to test things for my soon starting bachelor thesis. I work with a little robot car I share with other people and use 2 cameras on it. Today I make the extra effort to go to the lab to test my things as there were too many people busy with the available cars yesterday.
Set it all up with ROS and my project as per usual just to see whether python fucks me over again ... nothing, ok what a surprise.
Good part: my python code seems to work flawlessly
Bad part: cameras don't work, although they don't throw any errors. Quick check with rqt_image_view ... everything seems fucked up, but not broken. Cameras not accessible as they should be, only 1 view available instead of the normal million modes and a blank grey camera stream on the screen. But no errors, nothing.🙄😪
I also wanted to capture some footage to test at home, well that's gone to shit. Now I had to simulate that using my phone camera ... while crouching.
Fuck ... me.1
There a times I love python for its quick way of writing things. But there are more times that python makes me angry or just frustrates me with its indentation logic.🤪
When the indentation in my project lets the code either accidentally run a million times more or a tab/spaces inconsistency that no tool warns me about except runtime error.
What about a language that combines pythons easy way with brackets on top?😪 I guess it already exists?😅
For my project C++ would be a viable alternative, but so far the language seems very weird to write.14
Is it just me, that when tapping a rant on mobile the UI marks multiple list items as "selected", although only the one a actually tapped is opened?
It happens within the time I've written this, independently of app restart and it randomly highlights multiple rants below the selected rant, like a connected group of rants.
Anyone an idea?2
Found this beautiful piece of code, that I wrote apparently a year ago .... oh my 😂 🤦♂ 😅
If I could travel back in time, I would would slap myself for doing this. Although I remember, why I did this, because of many min()/max() operations that I needed. I wanted to keep the code, so that I would know, which code piece belonged to which part, but man ... is that badly written! Nowadays with Clean Code style, I would certainly do it differently.7
so FUCKING GREAT when you work on a git project in eclipse...🙄
git bash shows only 1 file that I've edited, eclipse ... shows a whole bunch of files that are even commited and pushed a long time ago. WTF??🤪20
That code is always executed e.g. after a user mouse click. "thing" gets defined in some other code.
It can be seen as a state machine that goes back to its starting point.
Is a pattern with objects/classes/prototypes even needed/preferred instead?
It's partly a problem I'm facing in my code but it's also interesting to know ideas/thoughts on this.4
Didn't really know how to categorize, bit of a question/discussion/curiosity, so I put it here.🤷
Just today I read an article that stated about the Netherlands, where the police will use an "AI surveillance camera" (yey buzzwords incoming 🙄, but it would actually make sense(?)🤷) to detect and punish drivers, holding a smartphone. Pictures without smartphone shall be deleted. How would this system work without having non-smartphone pictures? It needs to build a classifier, doesn't it? (To be clear, the system only reports those images to an officer for further analysis and actions.)
I mean let's consider that the images are somehow pre-processed, then some convolution(s) for feature extraction, then maybe some more intermediate steps and at the end apply the results on a classifier. How would that classifier work? Would a probability between 0 and 1 suffice? And if so, report those from 0,5 and above? Or would there be better techniques?9
Well what an adventure with this SSD...😑
my sis' laptop is from 2013-ish(?) and has/had a slow HDD in it. I wanted to speed it up, before her study, so I bought a new internal SSD (no new laptop wanted).
Created a bootable USB, exchanged the hard drives and install the OS on it. Seems easy enough...
The laptop restarts to finish its process ... laptop shuts down immediately, no warning whatsoever. 😳🤨
Start it up, loading screen, fan gets louder and louder ... instant shut down.😳🤨🤨.
Redo process, this time landing on blue-screen, error code critical process died? ... instant shut down again.🤔
Restart from old HDD, normal.😐
Retry with boot USB and reinstall SSD. Setup process copying files, meanwhile instant shut down.😳 Please don't tell me!😩 Since every part of the laptop was working, except the new inserted SSD, I thought "FUCK not a broken SSD!😣"
I had my own PC with internal SSD slot, so tried to find out, whether it would be broken...
All starting up fine??🤨🤨
Ok then? Finish the setup for the third time now ... everything up and running.😐🤷
Normal shut down, unplug, plug back onto laptop, it works. HOW?? WHY?? 😕
Why the fuck are you suddenly working? 😐🤷🤷🤷
That's some magic...5
Well I FUCKING FINALLY managed to build a program that makes my dad's printer print automatically.
Have ranted about this on my previous rant.
My recent approach was actually overengineered all over the top. I was using pyautogui to simulate the mouse that would call the settings window on Windows, which would print a nozzle test (the translation for "Düsentestmuster" according to google?). The more I worked with it, the more I would have had to care about edge cases when calling the settings and god knows what else...😖
So I left the idea.
What I came up with was a python script with some copy-pasted code of an example from the win32print api that printed an image that I specified, so it would use all inks. Somehow it works perfectly...
After that I used the win32api. ShellExecute() with ghostscript to print a PDF for the PGBK ink.
Finally a batch script to run this python script on the task scheduler. No converted .exe as dependencies and whatnot let it all go to hell.😒
It's not quite what I had originally anticipated as a solution but IT FINALLY FUCKING WORKS!!
...😪 It took way longer than expected and although I somehow couldn't manage to print all on 1 paper, I'm still satisfied that it really works.
That's all, had to vent my frustration and share this personal success.12
Soo my dad has a food printer he uses to print edible images on cakes our customers order. The food printer needs to run at least once a week (regularly) to kinda guarantee not to get fucked up with its ink, as that can damage the printer when it's dry. My dad though doesn't have regular orders...
The printer has a standard function to test all colors.
My dad asked me how this task could be managed regularly, as I'm the IT guy 🙄. His idea was to log all the dates on paper.
Now I'm trying to automate this task via Windows so we don't have to care about papers to manually log when the next test must run. On Windows the printer settings can be accessed to run this color check.
... I've got a feeling this will be another one of those tasks that I will overengineer over the top😅. I've already done my research with automated batch jobs (never done batch before) but the normally proposed code for a "Düsentestmuster", so the color check, prints a different overview I was not expecting, which doesn't fit the purpose.
Now I'm here and, as I currently see no way of simplifying it, I have to kinda simulate a person that opens these settings and runs this check. With Python, pyautogui and Tesseract OCR, to prevent the program from clicking anything wrong. Although I'm sure there should be an easier way for this, I haven't found it, so I guess I have to proceed on this path and take the experience I gain as a bonus...10
I tend to overengineer. Why? Because I had a view in JavaFX with its controller that had a bunch of key listeners which changed the UI. I wanted to change the view based on wifi connection/no connection with a server, which was managed in a Client class. The controller took the client to give it a message that client then had to send. For "separation of concerns" I created a separate view + controller for the "not connected" state.
Now the Client knew all about the connection, so I put up the Observer pattern and wanted the Main (Application) class to swap the layouts as an Observer of the Client. After an Exception on FX thread and Platform.runLater(), to solve the issue, I faced a new problem: the key presses weren't executed anymore. I still don't know why this happens. Maybe I'm missing something.🤷
Then met with one of my group partners (it's a uni project):
Let's attach the Observer to the original controller. Have only the original view that changes due to the controller updates as Observer. Let's see if that might even remotely work...🤔
I'd like to dive deep into web development.
I'm creating a little tool for myself on a web page, including server-side php, css, html, mysql and jquery, all just for fun and the experience.
I've got several ideas on how I want this tool to work and behave ...
But it's fucking difficult to wrap my head around all those technologies available. I don't know how to achieve certain things (yet) and what even to look out for😣
Fun fact: I already experimented with HTML, CSS, jQuery before as a noob. Yet today I've forgotten almost everything and need to start almost all over again, now even including PHP and MySQL, too.
This is gonna be fine. 😐
is there any way that the nemo file explorer on linux mint cinnamon is able to highlight the specific file when for example i downloaded a file with a browser and then want to view the file in the file explorer, so the browser redirects to nemo? how is it that I don't find this feature for nemo? doesn't it exist or am i too dumb googling this problem correctly? this feature is very helpful on windows, so what about it on other file managers?10
how is it that the android emulator in android studio runs buttery smooth on my up-to-date linux ryzen setup with just few terminal commands to set up, while my up-to-date windows version has some bullshit problem with virtualization, even with SVM on, Hypervisor all good, and yet crashes with a WHPX(?) error?
i mean ok i don't have an intel at hand but still the problem should be fixed by now according to google docs. even the fixes provided by the internet didn't help. this twist between windows and linux is very weird on my machine.1
I remember the first time I downloaded smth from the internet and was extremely nervous not to fuck anything up. I was young and had just started using a computer. It was a desktop computer with windows xp in our basement, inside kind of its own wardrobe, standalone.
I remember my dad (not very tech-savvy) who told me not to download anything from the internet, as it would surely be a virus, but I was bored of the built-in programs and wanted to try it out. I downloaded a program and was extremely nervous and hoped for no virus. I don't remember what I installed back then (no virus/trojan/etc.😅) but it was this moment I realised I could download anything and wasn't tied to what the OS provided, which led me to be interested in computers in general.
I believe that if I hadn't attempted that download, I wouldn't have become the tech-savvy person that I am today, studying CS...
oh dear the stocktaking i did (maybe am still doing? don't know whether it's done yet🤷) with my dad for his little shop😩
his pc/office skills had begun with microsoft excel (he taught me how to use a pc all together) ... and have stopped there. Excel for almost everything. To be fair, he uses PCs like a normal user and isn't of that metier, ok fine🤷.
but when i saw the table he uses, which he copied over the years from the previous versions (still ok), i quickly found out that his table entries were written by him FOR HIM. it was very hard for me to help him (he tells me the article he sees in his storage, i have to include, so i look it up in the table and do stuff) as he had nicknames for his articles that only he associated with😐.
next he prints out a list a company has given to him where he buys some products from, which is ordered by id number ... my dad works with the correspnding names instead so of course all product names are random😑, so every time i need a price for an article he has to scan every list item. you've guessed it, n² search😪😒.
i tell him multiple times to call the company and send him a list in alphabetical order but he refuses as "we've almost finished" ... 🙄 (i'm not allowed to ask for him, as the company will only talk with the responsible one😑)
so I'm tied to a pc, talking to my dad over phone, who has to walk around and has to help me very often to find the article he's meaning to, at the end, do a n² search to add all the prices....😩
I absolutely want to help him automate things for sanity's sake🤔😅
install databases, connect via internet, connect to companies databases for up-to-date prices etc., make some desktop/web app/i don't know for fast access and boom...
and i don't even know where to start and where to find the time for it and whether it's even all possible😅🤔😐🤷
had wished for a raspberry pi as christmas present, ideally with a pi cam on top.
now i've got a pi cam😏 ... and no raspberry pi😐🤨😅
that was unexpected3
yellow lemon tree sound starts:
"i'm sittin' here in a boring room, just another rainy sunday afternoon, i'm wastin' my time, i got nothin' to, i'm feelin' so lonely i'm waiting for my fucking graph coloring program to finally finishing this fucking piece of graph coloring in which i spent the last four days figuring out what the goddamn problem is and for some reason my arraylists and my hashmaps didn't get along that well and now i hope that i have finally found the solution to my problem and let this fucking piece of shit of program run otherwise i'll get crazy, but nothing ever happens, ... , and i wondeeeer ... *dum dum dum* *ding*
update on my previous rant about not being able to solve the task, after having spent nearly 30 hours along the weekend figuring shit out of my code...
as i let my code run on the uni server to check for my points i gained, the output of the solutions always began on a wednesday, so i thought it was obvious all tests began on wednesday ... just the night before the deadline a friend of mine came to me and said he had randomly found out from someone that there was also a Tuesday ... as i heard that i implemented the additional day ... 245 against 220 minimum🤦🤦🤦🤦🤦🤦🤦
you can't imagine the pain i went through😩, i even thought about changing from CS to something different because of the incompetence i felt before succeeding😖😭
well fuck me, just spent the whole weekend (about 33 hrs) not being able to solve a task from uni with a java program we had to write🙄😪
the problem was a given set of movies with a weekday, the begin time, the duration, the title, and a "score"
the movies take place in one week (random days, random amount of movies) and every movie can be shown multiple times
our task was to find a sequence of non-overlapping (all unique) movies with a score of at least a given number
all in text form
i tried dynamic programming but the more i tried, the more it got complicated, so i ended up using "earliest finishing time first"
my code is just 3 points under the goal and i don't know what to change anymore😒, also some friends did the exact same and succeeded somehow
copying (and obfuscating) won't work, as the codes will be compared by a very good "copy checker"
let's hope i'll still have a chance for an exam😐2
longer rant, with curious question at the end;
my sister asked me lately how she can change the way her phone creates the name of pictures she takes (the naming scheme), as she didn't want the name to be composed of date and time (and so on) the picture was taken, cause she had to send it to her boss
after i replied that i don't know how this could be changed and that the naming scheme would have a purpose, she got angry at me because i wouldn't help her and that i should fuckin tell where it can be changed!😡
after i repeated my answer she said "what are you studying cs for?? YOU SHOULD KNOW THIS!!!😡😤"
i got furious, you guys can probably imagine as IT guy/dev 😠😠😠, given stereotypes/prejudices etc., unfortunately i'm not the guy who is good at freaking out and yelling at people, but GODDAMN IF I COULD TELL HER WHAT STUDYING THE DEGREE IS REALLY ABOUT! I'M SO FED UP WITH THIS!😤😤😤
i'm not supposed to know how her FUCKIN HONOR PHONE WORKS
WHICH I DON'T EVEN USE and never even thought about changing the naming scheme.
JUST RENAME IT AFTERWARDS!
of course her phone is so complicated that she doesn't even know how to rename the file, as she only knows how to use the google photos app (which doesn't support that?🤔) and never even considered to use the file manager ... well can't blame her for that, android isn't as simple as windows when it comes to this🤷
... in the end she just sent it, as is😪.
oh and by the way, is it actually possible?🤔14
just did a stochastic exam for my cs degree and let's say it didn't go very well (i'm not very good at stochastic)😒
had a question like: "how many possibilities exist if you divide 8 people into 2 equal groups of 4?" (with 5 different choices to answer)
shouldn't that be 8 over 4 (binomial)? so pick 4 people and 4 remain as the second group, that makes 70 combinations, as far as i know ...
but there wasn't any 70. I then divided by 2 so i got 35 which was one of the available answers🤷, is that correct? did i understand smth wrong?2
.... but first let me "npm init -y" and "npm i jest" (as the tutorial suggests) real quick in my git project ... whoops😯😐😶🤨 ... woah, ok ... 5000 added files, shit, dependencies 🙄... delete all ... git error😐😥
delete folder manually😪😅
resuming paused tutorial: "and if you've got a git repository, just install jest globally, do not do this in your repo!"
.... just happened to me😑😅2
my longest coding session was from 10am to 2am, so 16hrs
was in first semester of uni and we had to build the game "breakout" using a predefined guideline.
i had to program the collision detection of a ball against some blocks that had to be destroyed
took a long time for me to do the task, as i'm not the fastest coder (and often neither the smartest😅) and had to fight a bunch of bugs too.
in the end it kind of worked but the performance was horrible at best
when i look at the code structure of the project i work on with my friends, i always think about how to implement the SOLID principles of bob martin for clean code
... and then i think about the clusterfuck of almost unmaintainable code that has been created over time and all the unit testing that doesn't exist at all and how much time and effort it would need to correct that code and how i realize that i don't even understand the principles and how to implement them
... and then i give up and go on coding even more mess
... and then i repeat😅😖😩3