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1026 Topics
Andre Alves
MVP
Andre AlvesMVP
asked in Developer and User Community
Extracting Asset Hierarchy from PDF P&IDs in Cognite Data Fusion

In a hypothetical scenario where we need to extract asset hierarchy directly from PDF-based P&ID documents, does Cognite provide a built-in library to support this? Or would we need to rely on external libraries like PyMuPDF or pdfplumber for data extraction—or even tools like Pytesseract in cases involving scanned images?Thank you for any guidance on best practices or integrations for this use case!

72
Andre Alves
MVP
1 hour ago
Pablo Palacios
Seasoned
Pablo PalaciosSeasoned
asked in Developer and User Community
Location in 3D

Hello everyone,I have a problem viewing 3D. It tells me that I don't have any scenes created, but I do have some. I understand that the error message is because I have to configure the location in the scenes. How do I do that? I don't see the option to add the location.  

122
Pablo Palacios
Seasoned
4 hours ago
Andre Alves
MVP
Andre AlvesMVP
asked in Developer and User Community
Guidance on Versioning Data Models in Cognite

Hi Cognite Team,I'm curious about the specific rules you follow for versioning views, particularly with the versioning format like "@view(version: 'v4')". I’ve noticed that the last number is the only one that changes, and I wanted to understand the rationale behind this.In my experience, I typically use the X.Y.Z format, where:Major versions indicate significant changes or potential backward-incompatible updates. Minor versions introduce new features or enhancements. Patch versions address bug fixes or minor improvements.While I understand that tools like DVC are more suited for tracking actual data changes, we are focusing on versioning the views and models. Is this approach aligned with your guidelines?If there aren’t any formal rules, that’s perfectly fine; we’re just trying to establish our own conventions and best practices. Versioning is an important aspect for us, and any insights you could share would be greatly appreciated.

81
A
Seasoned Practitioner
7 hours ago
APSHANKAR Sagar
Committed
APSHANKAR SagarCommitted
asked in Open Industrial Data
OPC-UA extractor - docker settings for periodic reporting of values regardless of change

Hi everyone,I’m facing a challenge with our current setup and would appreciate some guidance from the community.We have an OPC-UA server running on a Siemens IPC Linux machine, which serves the variable values of a Siemens PLC. This OPC-UA server is queried by an OPC-UA client inside a Docker package (Cognite OPCUA Extractor) that sends the data to Cognite Data Fusion (CDF). The data points are then stored in their respective time series within CDF.The issue is that, during periods when the physical quantity doesn’t change (e.g., motor current at zero during weekends), no new data points are sent to CDF. As a result, when the motor starts again, and the current shoots up quickly (for example, up to 2 Amps in 40 ms), this rapid change is not properly reflected in the time series. Because we only scan every 100 ms with the PLC, and since no data was logged during the weekend, it appears in CDF as though the current gradually increased from 0 to 2 Amps over the entire weekend. This is cau

222
APSHANKAR Sagar
Committed
7 hours ago
M
Committed
Markus PettersenCommitted
asked in Developer and User Community
Trying to setup an asset hierarchy with Core Data Model, but am getting some errors

I am trying to setup an asset hierarchy using the Core Data Model as shown in the example:https://docs.cognite.com/cdf/dm/dm_guides/dm_cdm_build_asset_hierarchy/But I am getting some strange errors when I try to implement it. A normal container and view without a refernce to core data model works fines, but when trying to add cdm it fails. I am using the toolkit to deploy the data model.In the “Data management” tab I get this error:{  "title": "",  "message": "Cannot read properties of undefined (reading 'listPump')",  "errors": []}In the “Query explorer” I get these errors:{ "errors": [ { "message": "The field type 'Cognite3DObject' is not present when resolving type 'Pump' [@-1:-1]", "locations": [], "extensions": { "classification": "ValidationError" } }, { "message": "The field type 'CogniteSourceSystem' is not present when resolving type 'Pump' [@-1:-1]", "locations": [], "extensions": { "classification": "ValidationError"

60
M
Committed
8 hours ago
Andre Alves
MVP
Andre AlvesMVP
asked in Developer and User Community
Data Modeling – Approaches to Defining SPACEs

In a hypothetical scenario where your company has more than 100 sites across different countries, each containing multiple units, it's important to organize data in a way that ensures scalability, flexibility, and ease of maintenance.We have our own perspective on the matter, but we would like to hear from other specialists, especially those experienced in data modeling approaches, like yourself. Example 01: Managing Employee Information Inside CogniteQuestion: Should we separate SPACEs for each site? Example Structure in Cognite Data Fusion:You can structure the SPACEs for your company’s sites and units as follows: Top Level: Country Create a SPACE for each country to organize data regionally.Example: US, BR, IN (for the United States, Brazil, and India). Mid Level: Site For each country, create separate SPACEs for each site within that country.Example: US_COR, BR_SAO, IN_BOM (COR for Corpus Christi, SAO for São Paulo, BOM for Mumbai). Low Level: Unit Inside each site’s SPACE, cre

172
APSHANKAR Sagar
Committed
10 hours ago
S
Committed
sebastianheibo.aksoCommitted
asked in Developer and User Community
Requesting training material on using advanced functionality in data modeling

Hi.I would like to experiment with using more of the advanced functionality in data modeling. For instance, everything related to importing views and mapping properties between data models. However, I feel like the documentation (https://docs.cognite.com/cdf/dm/dm_graphql/dm_data_modeling_language#specification-of-directives) is a bit lacking of examples of how to use the functionality. Are there any end-to-end (both basic and advanced) examples or other training material of how to reference data in other data models using all the different directives specified. For example examples of best practices when referencing between a source model and a domain model, and when referencing between a domain model and a solution model.Thank you!Sebastian

584
APSHANKAR Sagar
Committed
11 hours ago
W
Active
WalidMattaActive
asked in Digitalization Community
Visualization

I would like to know if Cognite visualization has the same features as the one found in Power BI and Tableau.The reason is simply because we need to have Decision Support and Visualization module as part of our overall setup.

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Active
11 hours ago
K
Active
Kai KangActive
asked in Open Industrial Data
Difference between Node/ Edge and View/Connection Properties

Hi everyone, I am wondering if someone can help explain the difference between Node/Edge and View/Connection Properties. I am extremely confused on these concpts as I read through the CDF data modelling tutorial.My current perspective is that Node/Edge and the knowledge graph defined by Nodes and Edges is the most “vanilla” version. Where as a Data Model made up of Views and Connection Properties is a similar construct but based on a specific perspective. The analogy between a View and Node in a relational DB sense will be a table and a view.Is my understanding correct? If so, I am wondering what is the actual need of Node/Edge given there is already Containers that perform the data storage like a SQL table would do? It seems to me that View, Connection Properties and Data Models are sufficient enough to produce any type of sementic model?

443
APSHANKAR Sagar
Committed
1 day ago
Anders Brakestad
Seasoned
Anders BrakestadSeasoned
asked in Developer and User Community
CogniteAPIError: "Constraint factory returned null". Meaning?

CogniteAPIError when listing eventsI have observed an error raised when listing events that I have never seen before. Below is the full traceback 2024-10-28 03:35 : Traceback (most recent call last):2024-10-28 03:35 : File "/app/function/***/***/***.py", line 95, in get_events2024-10-28 03:35 : events = self.client.events.list(2024-10-28 03:35 : ^^^^^^^^^^^^^^^^^^^^^^^^2024-10-28 03:35 : File "/user_env/lib/python3.11/site-packages/cognite/client/_api/events.py", line 817, in list2024-10-28 03:35 : return self._list(2024-10-28 03:35 : ^^^^^^^^^^^2024-10-28 03:35 : File "/user_env/lib/python3.11/site-packages/cognite/client/_api_client.py", line 532, in _list2024-10-28 03:35 : for resource_list in self._list_generator(2024-10-28 03:35 : File "/user_env/lib/python3.11/site-packages/cognite/client/_api_client.py", line 463, in _list_generator2024-10-28 03:35 : res = self._post(2024-10-28 03:35 : ^^^^^^^^^^^2024-10-28 03:35 : File

90
Anders Brakestad
Seasoned
1 day ago
J
Committed
JKuechenbCommitted
asked in Developer and User Community
Within Charts it takes multiple clicks to select a calculation function

When I am creating calculations within Charts I often have to click an object twice before it is selected.  For example, adding a Function.  When I select Operators the list resets and I have to click Operators again.  This time it provides the new window.  I’ll scroll down and select Round (doesn’t matter what I select).  The list resets back to the top and I scroll back down and select Round again.  This happens every time independent of browser (Chrome or Edge).  Is this common for others or a unique issue for me?  

585
Isha Thapliyal
Seasoned Practitioner
1 day ago
L
Active
lhcyActive
asked in Developer and User Community
Configuring Documentum file extractor meta-data

Hi All, Instead of relying on the “with metadata” query which only takes in boolean ‘true vs false’ value, is there a way for me to be more specific with which meta-data to bring in?  i.e. the ability to select the meta-data to ingest into CDF instead of all meta-data when ‘with metadata = true”.

40
L
Active
1 day ago
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Active
Marwen TALEBActive
asked in Developer and User Community
CDF Toolkit issue when deleting unit decorator

Hello, We are trying to delete a unit on a container attribute using CDF toolkit. CDF toolkit identifies that there is a container change. However, this change is not reflected on the container and view schema after the deployment. No error raised.Note: Adding and modifying container attribute unit works well.Any ideas ? Thanks,

453
A
Seasoned Practitioner
2 days ago
G
Committed
Gargi BhosaleCommitted
asked in Developer and User Community
How to access reverse direct relations through sdk

Hello team, I am trying to get the details of a reverse direct relation from my data model. In the SDK documentation I found some sdk methods. I have tried client.data_modeling.views.ReverseDirectRelation(source= "Entity", through="entityType") but I am getting the error that ReverseDirectRelation is not found in views could you please tell me what SDK method I should use to retrieve information on ReverseDirectRelations from my models.

516
A
Seasoned Practitioner
2 days ago
Anders Brakestad
Seasoned
Anders BrakestadSeasoned
asked in Developer and User Community
Power BI: Use parameter to specify CDF tenant when querying Sequences with Cognite Extractor

Hi guys! We are developing a Power BI dashboard that relies on time series and sequences fetched from CDF using the Cognite Extractor. We have set up a deployment pipeline for our dashboards (Dev, Test, and Prod), where each environment in the PBI pipeline corresponds to data sources in the respective CDF tenant. I.e., our Dev dashboard reads data from our dev tenant in CDF, and so on. We get this to work by configuring a Parameter in Power BI desktop with values that match our CDF tenants.Then we refer to these parameters when we define the data sources. Here is an example of how we use push-down filtering via OData queries from the Advanced Editor in Power Query:Source = Cognite.Contents(cdf_env & "/Timeseries/?$filter=ExternalId eq 'our_special_external_id'", null),The variable “cdf_env” evaluates by default to Dev, and we have configured the deployment pipeline such that this parameter updates automatically when we deploy from Dev to Test, and from Test to Prod. But here is the

204
Everton Colling
Practitioner
2 days ago
R
Active
Rafael Valerio GarciaActive
asked in Developer and User Community
Ho to connect Minitab to Cognite Data Fusion

Is it possible to get Cognite Data Fusion APIs from Minitab application? If does, how does it work the connection?

873
R
Active
2 days ago
Anders Brakestad
Seasoned
Anders BrakestadSeasoned
asked in Developer and User Community
Are there limitations in concurrent deployment of Cognite Functions via Github Workflow Matrix

BackgorundWe have an ongoing project where we need to deploy Cognite Functions and other resources (TimeSeries and Sequences) regularly, both during development/debugging and when publishing new versions of our product.The way we have solved this today is this:We maintain a “deployment template” YAML file that defines all the “stuff” that needs to be deleted/created during a redeployment. This includes Cognite Functions, TimeSeries, and Sequences. Each entry in the YAML contains all necessary data for creating the relevant resource. We have written some Python classes that perform resource specific deployment (CogniteFunctionDeployer, TimeSeriesDeployer, SequenceDeployer). These behave quite similarly, with methods that backup data, delete, and recreate the resource. These classes are instantiated in our “deploy.py” script, which just itereates over all the resources defined in the template (step 1), and calls the “.deploy” method on each resource deployer class. The deploy script is c

151
H
Practitioner
5 days ago
Anders Brakestad
Seasoned
Anders BrakestadSeasoned
asked in Developer and User Community
Update rates of FunctionCall attrinutes after a call (status, response, logs, etc)

Hi!I have a question regarding how quickly the metadata for a FunctionCall is updated after a successful call. The reason I ask is the following case:I have deployed a set of Cognite Functions that run on a schedule every minute. In production this will be every 10 minutes, but for testing and debugging I want to speed it up to see how it works.One of the functions perform this job:1. Determine the time range for the data fetch based on response value of previous call (if first call we use pd.Timestamp.now())2. Fetch Events in time range and process the data3. Write processed events to a Sequence resource in CDF4. Return a dict {"status": "success", "start_time": start_time}The start_time of call N becomes the end_time for call N+1. The function is a “historic backfiller” that traverses back in time to a pre-defined date and fetches Events along the way.The issue:I have run into the scenario that in call N+1, when I get the response of call N, the status of call N is still Running. So

122
Anders Brakestad
Seasoned
5 days ago
G
Active
gerardActive
asked in Developer and User Community
OPC Classic Time Series Missing

Hello,I’m trying to pull energy usage data from a Rockwell power monitor that supports OPC-DA but not OPC-UA. I configured the OPC-DA server (rslinx classic in this case) and I’m able to see the live data using an OPC-DA client (Kepserver). Next I try running the extractor, and it sees the project structure and creates assets, but never creates any time series data. I’m seeing very little in the logs. I did notice that “contious: False” shows up, but I don’t see any way to change that via configuration. I will get a keep alive message as you can see in the second image, but no data. Any suggestions would be greatly appreciated! Thank you.  

330
G
Active
5 days ago
M
Committed
Markus PettersenCommitted
asked in Developer and User Community
Visualisation of P&ID annotations not showing in Fusion when connected to nodes in Data Model

Hi,I was testing annotating P&ID documents towards nodes from a data model. It worked and the annotations are available through the API, but is not showing in the preview of the file. When the annotations are towards assets or files (from the asset-centric model) then it shows as expected, but when towards a node it isn’t. I am not sure if this is a bug or a future feature yet to be implemented.To be clear, I am annotating a File (not a CogniteFile from core data model). And the annotation is created and connected to the file and points to specific instances in a data model, but I see no way to visualize this is in Fusion. Regards,Markus PettersenAker BP - Data Delivery

423
M
Committed
7 days ago
Christian Mueller
Practitioner
Christian MuellerPractitioner
posted in Developer and User Community
The Cognite SAP Extractor is now generally available to CDF users!

Dear Cognite Hub community: We are very happy to announce that our Cognite SAP Extractor is now generally available to CDF users!The extractor connects to OData V2.0 endpoints in the SAP NetWeaver Gateway, making use of many pre-built integrations available in S/4HANA and saving considerable implementation time, while also natively connecting to the SAP data you need in a standardised manner.To get started,  download the SAP Extractor from the “Extract Data” page directly from CDF. The documentation, including Server Requirements and how to set up your SAP extractor is available here.We have also prepared a short demo (less than 4 minutes long) showing the steps needed to setup a data extraction from SAP S/4HANA OnPremise to CDF from scratch, including how to find the standard service from SAP, enable it in S/4HANA, configure and run the extractor and then see the SAP data in CDF.   Any feedback is very welcome, after testing the extractor and/or watching the quick demo please make sur

1344
Andre Alves
MVP
7 days ago
Isha Thapliyal
Seasoned Practitioner
Isha ThapliyalSeasoned Practitioner
published in Developer and User Community
Grow Your Expertise at Cognite Academy

Hi everyone!  🔔 Just a quick reminder that our comprehensive, self-paced, and on-demand courses are available at Cognite Academy. Whether you're looking to enhance your skills or explore new areas, we've got something for you! Upon completing a course, you’ll earn a certificate that will be added to your community profile and can also be added to your LinkedIn Certifications, helping you showcase your achievements to a wider network.Looking for more hands-on learning? We also offer 5-day intensive in-person trainings for those wanting a deeper dive.Unlock your next learning journey today!🚀

60
Isha Thapliyal
Seasoned Practitioner
8 days ago
V
Active
VikActive
asked in Developer and User Community
Can we only run GraphQL queries only through a data model ?

Hello everyone,I am using cognite client and wondering if I can write simple graphQL queries and run it through. Example. Select all assests.But it seems, it only provides option using one of the data models. Newbie to CDF. 

141
Mithila Jayalath
Seasoned Practitioner
9 days ago
S
Committed
ShwetaCommitted
asked in Developer and User Community
Question about working of cursorable feature of indexes in data model.

Hii everyone, I have created a data model and in that model I have one parent view and then a nested view. So I made cursorable true for parent and cursorable true for nested view in the indexes field(@container) so only limited rows of nested columns are coming into dataset( used a plugin to fetch dataset from cdf using dataiku) but if I do cursorable false for the nested view then all the rows are coming for it. Just for FYI in our code of plugin we have set limit of 1000 rows so when cursorable false then all the rows are coming and when cursorable true for nested view then only 1000 rows are coming. And when parent view’s cursorable is false it says it does not exist.Is this correct behaviour of the cursorable feature? if yes can you please explain why?

291
Mithila Jayalath
Seasoned Practitioner
9 days ago
Mithila Jayalath
Seasoned Practitioner
Mithila JayalathSeasoned Practitioner
posted in Developer and User Community
Unlock Exclusive Perks at Level 4 – Here's How You Can Get There!

Hey Everyone!Curious about how to boost your rank and unlock some amazing new abilities in the community? 🚀 If you haven’t checked it out yet, we’ve just shared an exciting update about the perks awaiting you when you reach Level 4 (Practitioner). From marking correct answers to unlimited post editing, these benefits are designed to empower you as a community leader.👉 Check out the full details here!👈Ready to take your engagement to the next level? Head over to the original post for all the details and start leveling up today!

100
Mithila Jayalath
Seasoned Practitioner
12 days ago

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