The main problem I have with regex and specifically this is that there's too many non-compatible syntaxes.
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Programming |OT| C is better than C++! No, C++ is better than C
- Thread starter Kikarian
- Start date
This always gets me with look(aheads|behinds|arounds). Also regexs become incomprehensible if even mildly complicated.
If you don't like regexes you can look into things like: https://github.com/VerbalExpressions/JSVerbalExpressions
The bolded is what i ended up doing:
Code:
public static TerrainGradient classic = new TerrainGradient(210, 185, 175, 70, 120, 25, 64);
public static TerrainGradient mountain = new TerrainGradient(245, 240, 235, 45, 40, 35, 64);
private static class TerrainGradient {
float Ra;
float Rb;
float Ga;
float Gb;
float Ba;
float Bb;
private TerrainGradient(float Rmax, float Gmax, float Bmax, float Rmin, float Gmin, float Bmin, float maxTerrainHeight) {
this.Ra = (Rmax - Rmin) / (maxTerrainHeight - 0);
this.Rb = Rmax - (this.Ra * maxTerrainHeight);
this.Ga = (Gmax - Gmin) / (maxTerrainHeight - 0);
this.Gb = Gmax - (this.Ga * maxTerrainHeight);
this.Ba = (Bmax - Bmin) / (maxTerrainHeight - 0);
this.Bb = Bmax - (this.Ba * maxTerrainHeight);
}
}
public static float generateVoxelColor(TerrainGradient gradient, float voxelYCoordinate) {
return Color.toFloatBits(
(int)(gradient.Ra * voxelYCoordinate + gradient.Rb),
(int)(gradient.Ga * voxelYCoordinate + gradient.Gb),
(int)(gradient.Ba * voxelYCoordinate + gradient.Bb),
(int)255
);
}result:
JeTmAn81
Member
Telling an end user to use regular expressions is a terrible idea. Regex can be confusing to developers, let alone the average user.
This is it. At retro, they showed a graph of our velocity over time. Somebody said that velocity is not a measure of productivity, then the CTO said "good point. We need to find ways to increase our velocity."
Ideally you would cross-compile on a workstation rather than compiling directly on the device. It takes maybe an hour on a desktop.Passed here just to comment that I'm porting Qt5 for an embedded device and the compilation process already surpassed 1,5 hour...
Fuck...Stucked at work 4:00 a.m
You can always increase velocity by assigning larger point values to your stories.
close to the edge
Member
Sublime Text is a fairly sophisticated text editor, but it's super fast. Has some nice Markdown plugins. That's what I use for Markdown files. Notepad++ might be good as well.
I need an algorithm to trace the resulting outline of axis aligned rectangles that are either adjacent or overlap. I guess another way to put it is that I want to merge several adjacent or overlapping rectangles into a single polygon while removing duplicate and interior points.
The approach I have in mind:
test each edge against every edge extended as a line. Split edges at intersections.
Now I choose some point then walk the edge clockwise. If I run into a point with multiple edges, I always choose the edge that is moset "outward". When I'm back at the first point I'm done.
I think this should work but maybe I'm missing something or there's a more efficient way to do it?
The approach I have in mind:
test each edge against every edge extended as a line. Split edges at intersections.
Now I choose some point then walk the edge clockwise. If I run into a point with multiple edges, I always choose the edge that is moset "outward". When I'm back at the first point I'm done.
I think this should work but maybe I'm missing something or there's a more efficient way to do it?
Bit of advice people if I can be so bold.
My girlfriend is currently working in the USA (we are both firm the U.K.) and next year I might potentially go out and live with her out there and work there too.
Currently I have 3 years experience as a developer (c# and asp.net) but no degree. I was thinking whilst I have the time I might get Microsoft certified (mcsd) as I thought that may increase my chances of finding work in USA. Is it worth my time and effort? Do you think I will struggle to find work without a degree and only 3 years developer experience (I've developed software for a lot longer just only professionally for last 3 years, worked in It my whole career so far).
Any input appreciated.
My girlfriend is currently working in the USA (we are both firm the U.K.) and next year I might potentially go out and live with her out there and work there too.
Currently I have 3 years experience as a developer (c# and asp.net) but no degree. I was thinking whilst I have the time I might get Microsoft certified (mcsd) as I thought that may increase my chances of finding work in USA. Is it worth my time and effort? Do you think I will struggle to find work without a degree and only 3 years developer experience (I've developed software for a lot longer just only professionally for last 3 years, worked in It my whole career so far).
Any input appreciated.
Hey you all. My life might change big time and I might get into a 2 year course here in Germany after which I would be "Informatiker anwendungsentwicklung" or in English I'll be certified for application development..including Microsoft certificates.
Now humble bundle has this ebook bundle. https://www.humblebundle.com/books/...b4a6381b04d48e7b8b456a&utm_content=cta_button
Are those books any good, especially for someone starting with programming and who wants to get a good look into different languages? I know the course will focus on C# and there is no book about that in the bundle. But still, I'm interested.
Now humble bundle has this ebook bundle. https://www.humblebundle.com/books/...b4a6381b04d48e7b8b456a&utm_content=cta_button
Are those books any good, especially for someone starting with programming and who wants to get a good look into different languages? I know the course will focus on C# and there is no book about that in the bundle. But still, I'm interested.
I really like Notepad++ (well, I really like Scite, and Notepad++ is mostly a variation), it's a good editor for anything (including Markdown), but I understood he wanted a notepad with the capability of portable, light text formatting. Notepad++ won't render the result itself...
I would have thought he was after something like writemonkey (well, this one is a bit special in that it was designed to run fullscreen so you're not distracted with anything)
I would compute intersections and do a modified Graham scan, which is, if I'm not mistaken, what you're doing, so I think that's right. Pretty sure I've looked for better solutions in the past and found nothing more convincing...
There's plently of free quality stuff (also obviously great books for a couple dozen bucks, if you're interested in a specific subject).
I'd be cautious with these kind of bundles, but at the same time, it's cheap... so even if it's bad, you won't be broke.
I'd do the opposite, though: decide on what I want to learn, look for interesting websites/books on the subject, then try to find interesting offers for the most expensive ones...
I literally am working on this at work.
http://stackoverflow.com/a/19475433/337656
Don't know how you are storing your points but I have a list of 3d points (mine aren't always going to be a rectangle).
These are the steps I followed.
1.) Create 2 lists of points that include the original points and all intersected points in the order you traverse them (CCW or CW)
2.) Start at the bottom left point and add to a master list until you get to a point that is shared.
3.) Determine if you stay on your current list, or swap to the next one and repeat from step 1.
4.) You reach your starting point with a complex shape.
Out of curiosity, what algorithm do you use to compute efficiently the intersections? Bentley-Ottman?
It's slightly easier with axes-aligned rectangles, even if the algorithm is mostly the same...
And you're doing this in 3D? Your points are coplanar, or how do you handle points out of the plane?
Pretty sure it'll be quicker to do everything at once, since there's log
complexity involved, unless you're doing something clever with your set (prior knowledge of what touch what)Not yet using a known alogoritm! Will have to look into Bentley-Ottman.
Pretty much just iterate through each all points creating vectors and then calculating the intersection points of the vectors and then making sure that the calculated point lines on the line segment (prevents false positives on shapes with more than 4 points).
I am doing this in 3d. The project involves welding things together, and constructing a 3d object, so I need the normal of the 'face' as well and so each 2d 'face' I am working with is actually defined by a plane.
When building up there are really 3 choices, the faces lie on the same plane so I need to union them together, they intersect and so I need to subtract one from another or they are completely disjoint so I need to keep both of them.
well this was a bit more involved than I had anticipated but it seems to be working. Since my rects are axis aligned choosing the next edge can easily be optimized but is there a trick to doing it effectively when dealing with arbitrary edges and 3d? I'm guessing just checking dot of right vector and the edge is the standard approach?
Powershell is now open source and runs on Linux/macOS: http://www.pcworld.com/article/3109...s-open-source-and-lands-on-linux-and-mac.html
All you programmers pro out there, let me ask for some experience. Have you ever rolled out a tool or so for your company that definitely made the work process better for all the other colleagues. Then, you tried to get them to use it and there will be some who will stubbornly refuse? The tool in question is extremely user friendly and cuts down on many manual method in which some work is done. Now, with a click of a button, it is all done. It doesn't get any easier than that. Why do some people refuse to use when other colleagues have used it to great satisfaction and success? Do you ever feel like crap like you are not trusted by those who refuse to use your tool? Right now I am feeling pretty down about it because it makes me wonder if those people maybe don't trust my tool, and by extension, my own skill/value/worth.
To be more precise, I work in a small company so it is really just one person who is refusing to use my tool even after I showed him how and asked for his opinion. Straight up still won't use it.
To be more precise, I work in a small company so it is really just one person who is refusing to use my tool even after I showed him how and asked for his opinion. Straight up still won't use it.
Randolph Freelander
Member
My goal in life when I created tools was to make my life easier. Other people could or could not use it, that's on them, but it was really all about me. Is my life easier? Then I'm satisfied.
Now, if it turns out that your colleague not using the tool is actually making your life harder, then beat him or her with the nearest blunt object. That's my recommendation. Use violence to beat them into submission.
(Do not actually use violence.)
Yeah true I understand. The problem is, it does affect other people's work. Basically, people in my company do their work and then send it to a server farm to get processed. The farm generally prioritize each job on a first come first serve basis if the job's "priority" value are the same. If a job comes into the farm at a higher priority, then it pauses all previous jobs to process the new higher priority job. Generally this is fine for emergency stuff but that doesn't happen often. Previous to the launch of my tool, colleagues will have to manually input in various stuff in order for the server to start processing the job. Well, I made a tool that automates that process so with a click of s button, your job gets sent to the farm for processing without having to manually put in other data. I have set my tool so that when it submits a job to the farm, it doesn't have the max priority setting because I want to leave room for emergency jobs like I've mentioned before. Well, this guy not only refuse to use my tool, he also always submit his job at max priority so everybody else's work gets paused when he submits his job. How selfish and rude do you have to be to always think your job is the most important and deserves all that priority? I've tried explaining this to him before too and he won't listen
I've dealt with that and it's incredibly annoying. It's a sure-fire way to get me to put any other pending projects for then on my back burner. It's not a grudge thing, I just want to spend my development time where I'll have the biggest impact.
I made a tool that let project managers specify project requirements and automaticaly generate all code architecture including unit tests. This was right before we all got laid off in a hostile takeover.
:O sorry to hear that. I promise though that this tool won't be killing jobs. It is a very standard tool used in my industry and the only reason my current company doesn't have it is the lack of expertise. It is a small company and people are just so used to doing this manually. However, go to any other companies within my industry and this part is automated like what I've just implemented. The real bulk of the work that we do isn't this particular step, hence why I am in favour of automating it so we can concentrate on the real work instead. All the big work is done and then sent to the server farm for processing. I am just making the submission part easier which is only good for us employees.
Are you new to programming? Just about anything is good when you're starting out.
Newish? I've done a bit of python and Javascript before, taken a couple college classes
Gordon Shumway
Banned
Hey, guys and gals..looking for some help. I'm lost following some instructions.
"pip install firetv[firetv-server] into a Python 2.x environment" 😐
I haven't the slightest what this means. How do I find this "environment"? I'm running Home Assistant on a Raspberry Pi 3 and would like to control my various media players, but have been stuck. Any help would be greatly appreciated
"pip install firetv[firetv-server] into a Python 2.x environment" 😐
I haven't the slightest what this means. How do I find this "environment"? I'm running Home Assistant on a Raspberry Pi 3 and would like to control my various media players, but have been stuck. Any help would be greatly appreciated
As I said a couple days ago (and before), I think LPTHW is just bad... but that may be just me (well, not just me, apparently). And yes, I'm talking about *beginner* ressources. I'd say the official tutorial is better, but there may be better ressources.
As for Python 3k of Python 2, that doesn't really matter. The differences, especially at first, are few and subtle. I'd be leaning towards 3k (print as a function, // for integer division, saner input, range is an iterator), but you'll be fine with 2 too.
Somehow, I may go with the easiest install! Pyzo (3k) is nice on Windows. Python x,y (2) is nice too.
You probably can just type "pip install firetv" in a shell (if you have both Python and Python3k installed, there may be issues, but if both are installed, 2 is probably the default)
Which OS do you run on your raspi?
(Beware, pip is handy, but I don't trust this system at all, I think it's a huge security hole...
Gordon Shumway
Banned
Thanks for the response. I have Python 2.7. Pretty sure my OS is just Raspbian. I'm a complete noob with all this stuff, unfortunately. What exactly is a shell and how do I find it? Thanks again.
Zombie James
Banned
https://www.reddit.com/r/rust/comme...jpeg_decoder_in_rust_part_2/d6obz7r?context=2
Every time I think about picking up Rust I see code like this and get turned off. This makes enterprise Java look good.
Code:
fn file_to_bytes(path: &Path) -> Result<Vec<u8>, std::io::Error> {
File::open(path).and_then(|mut file| {
let mut bytes = Vec::new();
try!(file.read_to_end(&mut bytes));
Ok(bytes)
})
}Every time I think about picking up Rust I see code like this and get turned off. This makes enterprise Java look good.
What about it, the union return?
The shell is the DOS-like* command prompt*. It's one of the cores of a good operating system.
I haven't used raspbian so I'm going off of google images...so forgive me if this is off:
You'll want to open up the Terminal from this image. Looks like it is located in Menu --> Accessories --> Terminal
I'm assuming you used this to confirm your python version (using the python --version command)
Just paste that command in the terminal.
Gordon Shumway
Banned
The shell is the DOS-like* command prompt*. It's one of the cores of a good operating system.
I haven't used raspbian so I'm going off of google images...so forgive me if this is off:
You'll want to open up the Terminal from this image. Looks like it is located in Menu --> Accessories --> Terminal
I'm assuming you used this to confirm your python version (using the python --version command)
Just paste that command in the terminal.
Thanks, man. Actually got everything installed now. Still catching some errors, but that's another story lol.
Edit-
And now I'm fine 😁. Thanks, once more, y'all..
Shell = command line (in a terminal), where you can enter commands to install things.
Are you using a graphical interface?
I'm applying for jobs, and just received a test that I have to send back in a few days where I need to do a paper and pencil calculation of probability, then a computer simulation as a check. This isn't exactly a programming job, but more math that requires programming. I've never got to this stage in interviews before, so I have some questions:
1). I just send source code, right?
2). Is there a programming style for these sorts of questions? This is basically a Project Euler level question and doesn't require the full machinery of C++. Should I be putting in consistency checks, etc.?
1). I just send source code, right?
2). Is there a programming style for these sorts of questions? This is basically a Project Euler level question and doesn't require the full machinery of C++. Should I be putting in consistency checks, etc.?
It's C++? Only standard lib includes?
If so, I'd say yes, although I may add a compiling command as a comment at the beginning of the file.
I'd also specify the version (11, 14) if you use newer functions.
I'd say that it depends on which kind of job you're applying for. If it's for software development, I'd say style and possibly tests plays a role. If computing is a tool in the job, just a sane algorithm will probably be sufficient.
I think if they choose not to go with python casing, and instead of the C style namespacing operator "::" for a simple "." it would look a lot better, it just throws up a lot of symbols which I've generally argued is bad language design, especially for a novice of the language because it's hard to understand new operators and not easy to lookup.
Note that just the nature of Rust means you'll have to think about things differently. There's no nulls and no exceptions, you must deal with them where they happen. As such the return type uses the Result monad to describe the end state (error, or a result which needs unwrapping). If you understand these patterns it becomes very easy to understand this code, and this pattern is used all over the place.
https://doc.rust-lang.org/book/error-handling.html is a good start that explains the whole idea before introducing a bunch of magic shortcuts.