if you want to have the chart in a specific area you can create a frame in your UI and set the chart size as a proportion to the size of the frame: chartView->setParent(ui->horizontalFrame); chartView->setFixedSize(ui->horizontalFrame->size());
Literally you are a superhuman, sir can you upload the basics for databases what the difference between SQL databases and nosql databases and I watched your video can you teach it like c++...... Slow and perfectly explained.
Thank you very much, but I'm not special. I have MySQL tutorials th-cam.com/video/yPu6qV5byu4/w-d-xo.html and a MongoDB (NoSQL) tutorial th-cam.com/video/-0X8mr6Q8Ew/w-d-xo.html Relational DBs (SQL DBs) organize data in tables where NoSQL DBs organize in key value pairs / documents with unstructured data. RDBs are best when using complex queries. NoSQL DBs are best for very large DBs. I personally prefer RDBs because I mainly make shopping carts which are ultimately rather small, but require quick searches with little server load.
Hi, thanks for this tutorial series. I am though having an error that I can't seem to solve. Once I add the line "QT_CHARTS_USE_NAMESPACE" I get the error saying that it does not name a type, suggesting to change it to "QT_USE_NAMESPACE". Any guesses on how to solve this?
Hi Derek, a wow video again. I was skimming through the comments below and saw you talking about how and what on linear algebra videos. Well, do what you do and how you do it. Do not look what other youtubers do. Make the algebra videos like you make videos about programming. Or you could make a video where you explain the algebra and directly after that how to use is in ML. Looking forward to see those videos.
I'll go out of my way to make a different type of tutorial. I may cover math using programming which would be different. I've been thinking about it for over 1/2 a year so hopefully I come up with something useful :)
Why don't you make a video about yourself? You are now a larger than life figure. Your deep, clear, and powerful voice continues to teach us stuff no university can come close, and for free. Thanks though man. The videos I learned most is your MongoDB series. You helped me master the stuff. Thanks again.
Thank you :) Because everyone has been asking, after Arduino, I'll start a complete course on ML. I'll start with the math required like linear algebra, statistics, calculus and depending on the views I'll continue as long as there is demand.
Derek Banas so if you are planning to do ML then please make short videos like of 15 mim or 10 mins like that i know you prefer long and knowledgeable videos but i think long videos will not continue grabbing more watch retention of the viewer so make. Like example if you made one maths topic required for ML which is length of like 25 to 30 min which is your normal duration of your lectures I am tell it because i think TH-cam recommend that videos more which has more retention of audience which you will surely have full if you will post like around 10 to 15 min video I am nothing to give you advice on which i have achieved nothing and you are a person with lots of achievement So tell you because i dont want you to stop that series because of views and i know this also that if start that series you will not backoff . All i want is you get more views.
I have been struggling with this idea. I was going to just jump into ML, but knew that a ton of math was required. I could make a TensorFlow tutorial, but everyone is doing that. But, how should I structure my math tutorials? The Khan Academy already has everything so I don't want to follow their format. Maybe it would be best to make quick 1 hr videos in which I cover most everything and then make maybe Anki decks for review? Something like learn Algebra in 1 video, with Anki decks for review? Maybe also make quizzes. I haven't completely nailed down what to do so I value the input. I'll work it out while I'm covering Arduino which is coming next.
Awesome series, Derek ! I really enjoy watching your tutorials, keep it up. I'd love to see some custom widgets integrated in Qt Designer for the next video. (Btw: Qwt & QCustomPlot > QtCharts 😋)
Thank you for the video. I have a question that can we change the style of chart? I want to change the background color and colors of the line. Can you help me with this?
Hi Derek, hope you are doing well. In Qt after we name our project I am struggling to find my kit that shows either we should have the maintenance SDK should set it up through options .the relative TH-cam that I found is not talking and sets up for Linux .I am using Visual studio, but I like to learn about Qt and follow your tutorials in C++.
Thank you for respond.I made a word file for you in my google drive and here is the link : drive.google.com/file/d/1PIJH5G5YJ_hrVs1eOb8Lmpscq8UbIKP-/view?usp=sharing
I just added a comment above on how to do it, if you're still interested (a year later, so probably not). Sort them by newest first because TH-cam chose to hide that comment for whatever reason.
Hey Derek, Amazing tutorial as always, but i have an idea. Why don't you start doing some tutorials about QML? That would be really helpful for people like me, who don't want to use widgets.
Wow.. took me to the end to get the bean joke.. Another fun video! With the type names being so long why not succumb to auto? I understand there are some double-delete issues with using Unique_ptr's but feel free to save yourself the trouble of typing out another "QBarCategoryAxis".
hi derek, sorry for commenting this on this vid, but i figured maybe u'd respond faster if i commented on one of your latest uploads, I started following your angular tutorial series, and i wanna know why neither my editor nor my browser recognize the {{js_element}} it just shows up as regular text.
Hi, could you please do a Direct2D/Direct3D video (series)? I'm doing OpenGL programming at the moment and would like to learn windows graphics programming. Thx! :)
So last time you said that you wanted to come up with good and nice way to represent maths tutorial for ML so my opinion is do a facecam video I think because I love your face cam videos it's good plus for me its interactive with maths review anki like last you have commented in 1 hr that would be good i think or solve some question regarding that maths requirement in ml and keep some list of questions that we should solve by yourself or make a poll on your TH-cam channel community tab
I'll make another Qt tutorial and then I'll start my Arduino tutorial. Once a month I'll post my progress learning Japanese. I'll mix in a few other random topics. Math, machine learning are coming and will continue as long as people watch
Hello, By the way, We have created an online platform dedicated to students, students who train on our site in but take courses, or correspondents with other students. We tried to browse your videos on youtube, we find that the content is clear and comprehensive. We have decided to offer you a profile of the teacher or we can simply put your courses online, if you agree, we will need your official agreement. I must tell you that I myself followed your tutorial, I know how easy it is to understand, that's why I would like to offer it to students on our platform. Your courses on our platform allow you to have many more views Thank you Best regards
For the love of God, don't call setLabelVisible manually on all slices! This is a TERRIBLE coding practice!!! Instad, use an for loop like this: for(auto slice : series->slices()){ slice->setLabelVisible(true); }
if you want to have the chart in a specific area you can create a frame in your UI and set the chart size as a proportion to the size of the frame:
chartView->setParent(ui->horizontalFrame);
chartView->setFixedSize(ui->horizontalFrame->size());
I'm glad that all 3 of these tutorials have demonstrated different techniques for actually initializing widgets. TY EDIT: I know, there are more
Derek thank you for existing! Some heroes don't wear capes.
You're very kind :) Thank you
Thank you Derek!!! We are very grateful to have these kind of tutorials :)
I'm happy you are enjoying them. I'll make a few more and then move on to Arduino :)
Thanks for taking time to do this wonderful tutorial. This helped me a lot. Hearty thanks.
13:16 Except nobody "batted" 1600... 😐 The data only goes up to "346" (seen at 11:52).
2:53 There is no "QT_CHARTS_USE_NAMESPACE" macro in Qt 6, and apparently you don't need it.
Simply amazing..Thanks Derek. I watched to the end
Thank you very much :)
Boss derek weldone never stop this were are with you our knowledge with you thnks my boss appreciated
Thank you very much :) It is my pleasure to help
Thank you, it is really easy and useful to watch your videos !
Thank you very much :)
The chart->setAxisX() function used in creating the line chart is marked as depreciated. Is there a replacement?
It's still marked as deprecated, 5 years later in Qt 6.7.0.
As always, thank you Derek!
Thank you :)
Literally you are a superhuman, sir can you upload the basics for databases what the difference between SQL databases and nosql databases and I watched your video can you teach it like c++......
Slow and perfectly explained.
Thank you very much, but I'm not special. I have MySQL tutorials th-cam.com/video/yPu6qV5byu4/w-d-xo.html and a MongoDB (NoSQL) tutorial th-cam.com/video/-0X8mr6Q8Ew/w-d-xo.html Relational DBs (SQL DBs) organize data in tables where NoSQL DBs organize in key value pairs / documents with unstructured data. RDBs are best when using complex queries. NoSQL DBs are best for very large DBs. I personally prefer RDBs because I mainly make shopping carts which are ultimately rather small, but require quick searches with little server load.
Hi, thanks for this tutorial series. I am though having an error that I can't seem to solve. Once I add the line "QT_CHARTS_USE_NAMESPACE" I get the error saying that it does not name a type, suggesting to change it to "QT_USE_NAMESPACE". Any guesses on how to solve this?
Hi Derek, a wow video again. I was skimming through the comments below and saw you talking about how and what on linear algebra videos. Well, do what you do and how you do it. Do not look what other youtubers do. Make the algebra videos like you make videos about programming. Or you could make a video where you explain the algebra and directly after that how to use is in ML. Looking forward to see those videos.
I'll go out of my way to make a different type of tutorial. I may cover math using programming which would be different. I've been thinking about it for over 1/2 a year so hopefully I come up with something useful :)
Derek Banas yaa that's a good idea 😀
Can you do one video for how to display multiple charts in gridlayout.
I have a question on Axis how to make 1000 from the axis label as 1K, 1 million as 1M
Why don't you make a video about yourself? You are now a larger than life figure. Your deep, clear, and powerful voice continues to teach us stuff no university can come close, and for free. Thanks though man. The videos I learned most is your MongoDB series. You helped me master the stuff. Thanks again.
Thank you for the nice compliment :) Last year I used to play games while talking about my life th-cam.com/video/wml5G2CW_wA/w-d-xo.html
Derek awesome videos...love them... Do you have some plans to record videos on data science....
Thank you :) Because everyone has been asking, after Arduino, I'll start a complete course on ML. I'll start with the math required like linear algebra, statistics, calculus and depending on the views I'll continue as long as there is demand.
thanks :)
Derek Banas so if you are planning to do ML then please make short videos like of 15 mim or 10 mins like that i know you prefer long and knowledgeable videos but i think long videos will not continue grabbing more watch retention of the viewer so make. Like example if you made one maths topic required for ML which is length of like 25 to 30 min which is your normal duration of your lectures
I am tell it because i think TH-cam recommend that videos more which has more retention of audience which you will surely have full if you will post like around 10 to 15 min video
I am nothing to give you advice on which i have achieved nothing and you are a person with lots of achievement
So tell you because i dont want you to stop that series because of views and i know this also that if start that series you will not backoff .
All i want is you get more views.
I have been struggling with this idea. I was going to just jump into ML, but knew that a ton of math was required. I could make a TensorFlow tutorial, but everyone is doing that. But, how should I structure my math tutorials? The Khan Academy already has everything so I don't want to follow their format. Maybe it would be best to make quick 1 hr videos in which I cover most everything and then make maybe Anki decks for review? Something like learn Algebra in 1 video, with Anki decks for review? Maybe also make quizzes. I haven't completely nailed down what to do so I value the input. I'll work it out while I'm covering Arduino which is coming next.
Maybe math,try grasp in 1hr video, and than lecture by lecture if its need some more math requiriments than explain bit by bit... just my thought
that was very interesting
Derek, are you still gonna be using the Arduino Kit in the description of Setting up Visual Code video? I just bought it yesterday.
Yes Arduino is starting next. I'll probably make 1 more Qt tutorial though to wrap everything up
Derek Banas thank you! That kit has the lessons on a CD (I don’t have a CD drive or DVD player) so I’ll just follow your tutorials.
I'll make sure I cover way more then is on the CD. If everyone gets into it I'll make big projects
Awesome series, Derek !
I really enjoy watching your tutorials, keep it up. I'd love to see some custom widgets integrated in Qt Designer for the next video.
(Btw: Qwt & QCustomPlot > QtCharts 😋)
Thank you for the video. I have a question that can we change the style of chart? I want to change the background color and colors of the line. Can you help me with this?
Have you tried this: chartView->setStyleSheet("background-color: yellow");,
@@AnalogDude_ I tried that too, but it was applying onto the widget and not on the chart
@@SunilNerella hey, i dind't try all "CSS" Properties, but QBarSet holds a property to setColor().
*QColor red(Qt::red);
set0->setColor(red);*
and i found some more goodies
QRadialGradient gradient3(0, 0, 10);
gradient3.setSpread(QGradient::RepeatSpread);
set4->setBrush(gradient3);
QFont font( "Newyork", 2 );
font.setPointSize( 32 );
font.setWeight( QFont::Bold );
font.setItalic( true );
chartView->setFont(font);
chart->setFont(font);
sets backgroud of widget
QRadialGradient gradient2(0, 0, 10);
gradient2.setSpread(QGradient::RepeatSpread);
chartView->setBackgroundBrush(gradient2);
set background of chart
QRadialGradient gradient4(0, 0, 10);
gradient4.setSpread(QGradient::RepeatSpread);
chart->setBackgroundBrush(gradient4);
but i wasn't able to set the font sofar.
Hi Derek, hope you are doing well. In Qt after we name our project I am struggling to find my kit that shows either we should have the maintenance SDK should set it up through options .the relative TH-cam that I found is not talking and sets up for Linux .I am using Visual studio, but I like to learn about Qt and follow your tutorials in C++.
Can you show me a screen shot?
Thank you for respond.I made a word file for you in my google drive and here is the link :
drive.google.com/file/d/1PIJH5G5YJ_hrVs1eOb8Lmpscq8UbIKP-/view?usp=sharing
Hey I'm using QT 6 that uses cmake instead of qmake so is there any way to include Qt charts in Cmake file?
I just added a comment above on how to do it, if you're still interested (a year later, so probably not).
Sort them by newest first because TH-cam chose to hide that comment for whatever reason.
Hey Derek,
Amazing tutorial as always, but i have an idea. Why don't you start doing some tutorials about QML? That would be really helpful for people like me, who don't want to use widgets.
Hi Derek, thanks a lot for your super grate videos, I think you will be the right teacher for a Qt gRPC client server tutorial. 😊
Br, Jacob
I'm happy you like them. That sounds like a ridiculously awesome idea :)
Thank you for all your videos,, don't you know where I can learn how to create charts with JS?
I'm happy to help :) Here is what you are looking for www.chartjs.org/
Thank you so much , it's an amazing library
How would I go about manually adding charts in Qt designer?
I covered how to use the drag and drop interface in the previous videos
Why the double cursor in the latest tutorials? And do you have a Git or GitHub account?
Sorry about that. My recording software has a flaw
How can you know everything?
Learning is my only hobby and I barely sleep
@@derekbanas Will you have a discord server
Wow.. took me to the end to get the bean joke.. Another fun video! With the type names being so long why not succumb to auto? I understand there are some double-delete issues with using Unique_ptr's but feel free to save yourself the trouble of typing out another "QBarCategoryAxis".
how to do for dynamic charts
Very nice videos. Thanks you sir
Thank you :) I'm happy you like them
hi derek,
sorry for commenting this on this vid, but i figured maybe u'd respond faster if i commented on one of your latest uploads, I started following your angular tutorial series, and i wanna know why neither my editor nor my browser recognize the {{js_element}} it just shows up as regular text.
Will you do a COREL DRAW tutorial?
Sorry, but I don't own it. I'm working on Gimp
I know this is a long shot, but I hope you will do a tutorial on CNC Programming
DEREK
SIR, I wanna tell you that which tutorials of Java are best for Android Studio.
❤❤❤ from Pakistan.
Parts 1 through 18, minus 8 and 10 starting here is all you need for Android th-cam.com/video/TBWX97e1E9g/w-d-xo.html
Derek Banas
Thank You Sir.
Hi, could you please do a Direct2D/Direct3D video (series)? I'm doing OpenGL programming at the moment and would like to learn windows graphics programming. Thx! :)
I'll see what I can do
Excellent video!
Thank you :)
Does anyone know how to make pie chart three dimensional?
So are you a vegan?
That's sounds cool :)
And of course your tutorials are awesome!
Thanks for everything.
I had a warning showing
"setAxisX " is deprecated
4 years later, in Qt 6.7.0, still deprecated. Still a warning.
Really helpful, thanks!
Thank you :)
Derek, I know that you have a lot of work, but may I ask you if you've been thinking about .NET Core tutorial?
BTW. Awsome vid!
Thank you :) I'm kind of caught up in previous promises sorry. Up next is Arduino, Monthly Japanese Updates, other random requests
Sure thing! Keep up great work! :)
So last time you said that you wanted to come up with good and nice way to represent maths tutorial for ML so my opinion is do a facecam video I think because I love your face cam videos it's good plus for me its interactive with maths review anki like last you have commented in 1 hr that would be good i think or solve some question regarding that maths requirement in ml and keep some list of questions that we should solve by yourself or make a poll on your TH-cam channel community tab
Thank you for the input. I'll see what I can do :)
U lied to me, Ur Bananas !!!
That's funny :)
Hii derek how's going
I'm always great! How are you?
Derek Banas i am fine. Have a great day
What's next
I'll make another Qt tutorial and then I'll start my Arduino tutorial. Once a month I'll post my progress learning Japanese. I'll mix in a few other random topics. Math, machine learning are coming and will continue as long as people watch
Yes after Arduino I'll cover either linear algebra or statistics next
Thanks for fast response
Hi, can you make a video on how to use python for hacking ?
Sorry, but I don't need the FBI in my life :)
Derek Banas haha, I just joking
derek banas hhhhhhh that was a good one
Did you ever think of learning a musical instrument? With your learning expertise, you should get it down quick!
Yes, but then I have to figure out how to teach it. I'm working on it. I'll probably cover reading music with Piano first
Hello, By the way, We have created an online platform dedicated to students, students who train on our site in but take courses, or correspondents with other students.
We tried to browse your videos on youtube, we find that the content is clear and comprehensive.
We have decided to offer you a profile of the teacher or we can simply put your courses online, if you agree, we will need your official agreement.
I must tell you that I myself followed your tutorial, I know how easy it is to understand, that's why I would like to offer it to students on our platform.
Your courses on our platform allow you to have many more views
Thank you Best regards
What is your platform?
voici le lien galatsii.com
we were waiting for your answer dear Derek
did you visit the platform?
It's doesn't work! Why people lying in comments?
Check out the code in the description. What error did you get
@@derekbanas you are my last hope
@@derekbanas please >
@@derekbanas please
explain S.O.L.I.D in PHP whit deep Examples
For the love of God, don't call setLabelVisible manually on all slices! This is a TERRIBLE coding practice!!! Instad, use an for loop like this:
for(auto slice : series->slices()){
slice->setLabelVisible(true);
}