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Linnart Felkl M.Sc.
Linnart Felkl M.Sc.
Linnart Felkl M.Sc.
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I like to work with Python, R, SimTalk, SQL, VBA and simulation tools for modelling and solving supply chain management related problems. Most of my videos touch upon these topics - mixed with some private hobby-related contributions.
Heuristic job shop scheduling in Python
2:11
3 месяца назад
Sales store chain expansion analysis
0:55
3 месяца назад
Sales store allocator demo app
2:19
3 месяца назад
Single warehouse allocation app demo
0:20
4 месяца назад
Haversine Excel VBA model
0:35
4 месяца назад
Blending problem in Excel Solver
7:31
5 месяцев назад
Job shop simulation in SimPy
7:49
6 месяцев назад
R interface for SimPy supply chain simulation
6:54
6 месяцев назад
Job shop scheduling in Python
14:28
6 месяцев назад
Perishable SCM network SimPy simulation Python
11:17
7 месяцев назад
Truck hual simulation animated in Python
1:34
10 месяцев назад
Marine barge transport simulation in Python
6:47
10 месяцев назад
Setup and changeover sequencing in Python
11:08
11 месяцев назад
Featured image in Wordpress
2:34
2 года назад
Author guidelines SCDA
13:50
2 года назад
Log in into the Wordpress backend
0:56
2 года назад
Updating user profile in Wordpress
6:00
2 года назад
Комментарии
@abelcavalcante8142
@abelcavalcante8142 3 месяца назад
Nice video! Really informative, it helped me a lot!
@pusnonos-kimnamkyung4037
@pusnonos-kimnamkyung4037 3 месяца назад
VERY HELPFUL THANKS! :)
@pusnonos-kimnamkyung4037
@pusnonos-kimnamkyung4037 4 месяца назад
Amazing..
@lilianima
@lilianima 4 месяца назад
Hi mr Linnart thank you for your efforts. I need your help within pyautocad, can you help me? Please give me your email so I can contact you Thank you for your time
@pusnonos-kimnamkyung4037
@pusnonos-kimnamkyung4037 5 месяцев назад
professor, It will be helpful for our Co. i really appreciate it thanks!! :)
@pusnonos-kimnamkyung4037
@pusnonos-kimnamkyung4037 5 месяцев назад
i really appreciate it.
@paulporstein4420
@paulporstein4420 5 месяцев назад
Hi Linnart! Your videos are great material. From where do you know all these commands? The documentation I find online is very little material and doesn’t give much information….
@paulporstein4420
@paulporstein4420 5 месяцев назад
Hi! Great video! Where do I find the documentation of PyAzoCad? I’m having a very hard time finding it…
@shaggyaxe
@shaggyaxe 6 месяцев назад
Hm, that link in the description doesn't take you to the source code. Takes you to an overview, and the output. But I'm not seeing the source code. 🤔
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 6 месяцев назад
Thanks, some add-on on my blog is outdated. Didnt know. Fixing it now
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 6 месяцев назад
should be visible now again
@user-sz6in1nf6p
@user-sz6in1nf6p 6 месяцев назад
thanks for this discovery ! I had terrible experience with Arena ...
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 6 месяцев назад
the animation part in this video is added by Prof Paul Corry, but SimPy itself is the discrete-event simulation package and engine that you can use in Python for process models. I have multiple case study examples on my channels, check my recent videos to see some applications, if you are interested.
@duongnguyenta453
@duongnguyenta453 7 месяцев назад
sorry sir. Can you guide me on how to remove objects from SelectionSet? Can I connect to you by Email?
@semenovdanya4780
@semenovdanya4780 9 месяцев назад
Good afternoon! Thank you for this video! I have a question... will this library help for graph analytical method in passenger transportation?
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 9 месяцев назад
yeah, there are examples for that available
@ikeforshort5363
@ikeforshort5363 10 месяцев назад
Is there a way to use this for reverse geocoding? I have the coordinates, but I need the address? Thank you for the video and for sharing the code! Greatly appreciate it
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 10 месяцев назад
Hi. It is possible to do reverse geocoding. I have never used it. Are you limited to R only, or can you use another programming language?
@Jizay96
@Jizay96 11 месяцев назад
Hi i from vietnam! Can you teach me how to create viewports in layout from rectanculars in model by python! Tks you so much
@Voronza
@Voronza 11 месяцев назад
Thanks, really helped me to begin using ortools!
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 месяца назад
great, thx
@roo_g8019
@roo_g8019 11 месяцев назад
Please can you share the contact information or name of the presenter? Thank You!
@enashamed3117
@enashamed3117 11 месяцев назад
great work and effort. is there any method for layer isolate in python code
@euksnxjek195
@euksnxjek195 Год назад
How can i do different batch sizes? So sometimes 2 packages in one big and sometimes 5 packages?
@user-dj1uh8ie6w
@user-dj1uh8ie6w Год назад
wonderful video. do you have videos for job shop problems?
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 5 месяцев назад
you mean scheduling models? I have mix of a time-indexed optimization model template, and an assignment heuristic available here: www.supplychaindataanalytics.com/product/job-shop-scheduling-library-python/
@searchbandu22
@searchbandu22 Год назад
Thanks, I ve just started learning pyautocad. I ve being using AutoListp and C# for long and trying to migrate to pyautocad.
@jaclgr
@jaclgr 11 месяцев назад
Hi there. I'm using autolisp for my projects for the past two years, and looking to advance my skills. Would you recommend learning C# or pyautocad? I've got basic knowledge of python. Thanks.
@LuizChequini
@LuizChequini Год назад
I created several lines and performed the Extrude command. If I use the native command of AutoCAD (aa) Area to get the information I get the information provided by the program. The problem that the command has to click one by one of the objects and there are many. Is there a way to make a python script to get the area of an AcDbExtrudedSurface?
@frostinsh
@frostinsh Год назад
Hey Linnart! Maybe you have idea why my material item type agent which is box, is visible going under the conveyor and station, and when station is full, it disappears instead of going on conveyor.
@user-vg5yu2rd8s
@user-vg5yu2rd8s Год назад
Hello Linnart. Thanks for the nice and well organized lecture. Can you help please on how to draw Leader line. Thank you
@tobjasje
@tobjasje Год назад
I've got the same question
@erickmolina8361
@erickmolina8361 Год назад
Hola Mundo algun video de Xr?
@user-vg5yu2rd8s
@user-vg5yu2rd8s Год назад
Hi Linnart. Thank you for your kind contribution. and i am facing one problem . I am trying to automate autocad using the pyautocad . I am using Flask web framework and the drawing shall be generated when a button is pressed . and i am getting an error message "OSError: [WinError -2147221008] CoInitialize has not been called" . Please could you help me in this regard. Thank you.
@speerit9673
@speerit9673 Год назад
How lucky are engineers from America everything is in their language any information when you are from a small country Belarus there is nothing in your native language you have to look at information from other sources and self-learn in another language it’s a scribe how difficult it is to have a Google translator thank you for about pyautocad
@juaneiros2100
@juaneiros2100 Год назад
Nice video. I’m still new to this library: do you know how you’d add a constraint that each shift is covered by multiple workers? (Not just one). Thanks!
@juaneiros2100
@juaneiros2100 Год назад
And how to take into account shift preferences? e.g: worker1 would rather work Shift1, Shift3 and Shift2 (in order of preference). So we’d try to avoid assigning worker1 to Shift2 as much as possible.
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
for y in range(days): for z in range(shifts): model.Add(sum(shiftoptions[(x, y, z)] for x in range(workers)) > 1)
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
@@juaneiros2100 shift preference is optimization (objective function) and not cp? For a cp model you could forbid certain worker shift mappings. If you want to model preference then use optimization model instead?
@sadamth6714
@sadamth6714 Год назад
Hii How to access properties for object like block, attributes.. (Get insertion point, height, style etc......)kindly make a video
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
hi, check our docs on www.supplychaindataanalytics.com for this info
@sadamth6714
@sadamth6714 Год назад
hii thanks for the video. i have a question how to create a line for the python function? like in autolisp (getpoint function user asking this function) how about in pyautocad.
@MahdiTaghizadeh-ob8ed
@MahdiTaghizadeh-ob8ed Год назад
great thanks
@MahmoudSAnagy
@MahmoudSAnagy Год назад
thanks for all your efforts . I have a question , how we can access and define objects with python in AutoCAD file previously draw? ( I mean that we did not draw it by python and we want to edit and define the objects inside to manipulate with python ?)
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
Hi Mahmoud, you can e.g. iterate over all objects in the drawing, and identify the desired object by name or other relevant property
@MahmoudSAnagy
@MahmoudSAnagy Год назад
@@linnartfelklm.sc.6467 please example for that or illustrate in a separate video we do not have names of objects to iterate for it is a previous file or ordinary file not coded by python
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
@@MahmoudSAnagy you can iterate over all objects in the dwg file without knowing their names with .iter_objects(). See: www.supplychaindataanalytics.com/python-for-autocad-pyautocad-module/
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
@@MahmoudSAnagy also please see how you write. You are being a bit rude dude. You think I have nothing better to do than to make a video just for you? How about you pay me for consultation? :D
@jamauldrew
@jamauldrew Год назад
Dude, please don’t let that guy discourage you. THANK YOU SO MUCH for sharing this information🙏
@cesarenriquevillarguerra8270
claps for you! I have a question, how can i select more than one lineas (for example 40 objetcs) and move them to another position??
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
I have not tried that, but Tanmay has. You can ask him by writing a comment under the linked blogpost. He will reply there
@cesarenriquevillarguerra8270
oks , Thanks
@maruthipabbathi132
@maruthipabbathi132 Год назад
thank you it helped me for my exam preparation
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
Great. Which exam, if I may ask?
@maruthipabbathi132
@maruthipabbathi132 Год назад
@@linnartfelklm.sc.6467under graduation 2nd semister exam
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
@@maruthipabbathi132 ok, but what coursework? What course did you use this video for? :)
@imrozsobhan2645
@imrozsobhan2645 Год назад
How did you use GAMS in Cplex?
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
It is the other way around, you use cplex in gams
@imrozsobhan2645
@imrozsobhan2645 2 года назад
Hlw sir, I am an undergraduate student of Industrial Engineering. I have been working on minimizing transportation cost using MIP algorithm. Which software can be suitable to solve this problem. Since, i am considering Cplex,Gusek etc. software. Can you please suggest me?
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
Gurobi
@hafizmuneebahmed342
@hafizmuneebahmed342 2 года назад
Informative
@michaeld.2432
@michaeld.2432 2 года назад
is there a way to turn on and off layers?
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
Hi Michael. Yes. My team mate Tanmay can answer this if you leave a comment in the blogpost that i linked to. Thank you
@84mallick
@84mallick 2 года назад
Can you send me the link of those explained functions in details?
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
Hi. Which function? The code is documented here: www.supplychaindataanalytics.com/gradient-descent-in-r-for-non-linear-optimization-nloptr-package/
@kartikeyaagrawal5917
@kartikeyaagrawal5917 2 года назад
I ran the code in ipynb , it does not stop executing
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
Does it print results?
@kartikeyaagrawal5917
@kartikeyaagrawal5917 2 года назад
@@linnartfelklm.sc.6467 Yes, it does but unlike other ortools program it does not terminate.(Using .ipynb file)
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
@@kartikeyaagrawal5917 how long did you let it run? it will print all solutions that it finds, if I remember this example code correctly
@mohamedfakhraldin7516
@mohamedfakhraldin7516 2 года назад
Awesome video! I would love to see how a more complicated mathematical model would be solved using the same computations :). I would appreciate if anyone could refer me to a problem containing compact formulation that is also solved via PuLP
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
Dear Mohamed. We can certainly provide this, as part of consulting session. Please contact me through my blog if you are open to paid consulting sessions for specific problems
@vramanap8290
@vramanap8290 2 года назад
Audio is very low for some reason
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
I experiece that sometimes with other videos. It is something that youtube does. Very annoying
@AGRDB
@AGRDB 2 года назад
You work is amazing! 👍
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
Thanks man
@Melissarka
@Melissarka 2 года назад
Hello! Can the variables be booleans ? Like in the knapsack problem
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
pulp supports integer programming, yes
@Melissarka
@Melissarka 2 года назад
@@linnartfelklm.sc.6467 okay, thank you!
@theanh1211
@theanh1211 2 года назад
thank's, Man!
@jacobc1404
@jacobc1404 2 года назад
???????
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
Whats up my friend
@dhanushu3341
@dhanushu3341 2 года назад
I have a problem statement I would like to connect with you regarding the same , let me know if I can do that
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
You can write quesions into the comment section on the article linked to in the description if this article; You can also hire me or my network as a developer
@jykim6276
@jykim6276 2 года назад
Hi. I'm now studying your posts and videos. But all the documents seem to start with new drawing files. Could I use pyautocad to access *.dwg file which are already created and saved in the computer? Thanks!!
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
Hi. On our blog ask these questions to Tanmay. You can find him via the AutoCAD tab under "blog". Website is www.supplychaindataanalytics.com
@ebadrahman3
@ebadrahman3 2 года назад
Hello, I get the following error: OSError: [WinError -2147221005] Invalid class string When my program runs the line of code: print(acad.doc.Name) I'm not sure what I'm doing wrongly.
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 Год назад
Hi Ibath, sorry for late reply. Can you leave a comment on the blogpost that I linked to in the video description? Then my colleague Tanmay can look into it and may respond you there
@santiserna7525
@santiserna7525 2 года назад
Thanks a lot!! I am new in this world of optimization techniques and there are not enough videos available on this topic. You literally saved my life with this model. =)
@Eyrowyn
@Eyrowyn 2 года назад
I found this to be so helpful! Thank you!
@linnartfelklm.sc.6467
@linnartfelklm.sc.6467 2 года назад
You are welcome.