IFC Documantation

StratArchi · June 20, 2019, 2:01pm

Thanks Sergej for your answer.

I talk about this issue some weeks ago with someone of the team, so I understand we have to be patient…

The question is whether it’s possible to use ifcDoc without this “assign model view” functionality, replacing it by a manual assigning procedure. Get manually the “mvdxml blocks” to compose the file?

I’m investing time in better understanding the xml language, the mvdxml schema and in finding out if this manual “assigning” is possible the way ifcDoc works today. But i don’t know whether it’s worth to do it or if ifcDoc is not operational at all because of this issue.

Any advice?

Thanks,

Daniel

sergej · June 21, 2019, 9:21am

Yes, it is. It currently works the following way:

Right-click on the the first node in the tree named “Scope” -> Insert -> Model View Definition
Right-click on the model view definition -> Insert -> Exchange Definition to add exchanges being covered by the MVD.
Right-click on the model view definition -> Insert -> Table Definition to add concept roots.
Left-click on the definition and in the lower right part of the UI select the tab “Query”. In this same region click on “+” and select the IFC entity the concept root maps to.
Right-click on the concept root (table definition) -> Insert -> Column Definition to add concepts to the concept root. Configuring the concepts is done through the tabs in the lower right part of the UI.

Sorry for the rudimentary explanation. I did not have much time. I hope this helps.

ReD_CoDE · June 21, 2019, 9:49am

Hope other friends check, but step 4 doesn’t work and all have the issue in this step
Maybe we’re wrong, if someone did, please share

StratArchi · June 21, 2019, 12:52pm

YEAH !!!

Many thanks SERGEJ !!!

It works for me.

To be clear: These instructions solve the fictionality difference between the current ifcDoc UI and the one of the #2 tutorial video (https://www.youtube.com/watch?v=qU46JMf_nSk&feature=youtu.be between times 6:15 and 8:01), Issue reported up here by zeynab (that’s what I tested so far…)

I should add: the “model view definitions” are not listed under the chosen ifc Entity (as seen on video UI from 6:01) but the whole tree structure can be managed from the MVD we created under Scope, on the top of the left side of the UI.

Well… now is time the keep learning with the tutorial videos… I’ll dare to ask your help again if I ever get blocked further…

Have a nice day.

ReD_CoDE · June 21, 2019, 7:02pm

Could you please create a short video to show how does it work? It will help buildingSMART too to answer many requests these days has to handle related to IfcDoc

It works with “Table Definition” but the main issue is “you have to add IFC entity names manually which is agony”

Victoria · June 21, 2019, 7:50pm

Hi guys. I just joinned the forum wondering if any of you knows how to add an INV attribute using IfcDoc. I am pretty new to the software and the only thing I got is adding two attributes linking two entities and marking one of them as inverse of the other.

However, I would like to have just one attribute (one line between both entities) whose text indicates the name of both the direct and the inverse attribute.

Any ideas or suggestions on how to do this would be really appreciated!!!

Thanks!!!

Victoria · June 24, 2019, 10:50am

I’ll try to upload a picture of what I’ve done.

Any advice in the meantime?

Thanks in advance!!

StratArchi · June 24, 2019, 10:52am

Sorry, No video but old-fashion screenshots…

In BOLD the steps proposed by SERGEJ…

I included the “time on video” reference in order to compare the manipulations on the tutorial video (https://www.youtube.com/watch?v=qU46JMf_nSk&feature=youtu.be and those of my screenshots.

1. Right-click on the the first node in the tree named “Scope” -> Insert -> Model View Definition

Time on video - 0:22 / 0:35

2. Right-click on the model view definition -> Insert -> Exchange Definition to add exchanges being covered by the MVD.

Time on video - 0:52 / 1: 27

3. Right-click on the model view definition -> Insert -> Table Definition to add concept roots.

Time on video – 6:15 to 6:21

4. Left-click on the definition and in the lower right part of the UI select the tab “Query”. In this same region click on “+” and select the IFC entity the concept root maps to.

Time on video 6:31 “… and that adds IfcSpace to the modelview”

5. Right-click on the concept root (table definition) -> Insert -> Column Definition to add concepts to the concept root.

Time on video 7:17 “…if you want to add a requirement…”

Configuring the concepts is done through the tabs in the lower right part of the UI.

Time on video 7:20 “…we can say Insert Concept…” to time 7:47

Victoria · June 24, 2019, 11:02am

Please find attached a picture of what I mean.
I get to mark the attribute in the red circle as inverse of the attribute in the blue circle, but the latest should be removed automatically as it is already being defined through the inverse one, shouldn’t it?

I hope my explanation is not too confuse.

Thanks in advance!!!

ReD_CoDE · June 24, 2019, 11:26am

You should click on the attribute (red) and it automatically will be selected on the tree (on left side panel), then should copy it and add it inside the tree which another IfcRelDeclares is (blue)

If you click on each one you will see where is it inside the tree

ReD_CoDE · June 24, 2019, 11:31am

Thanks, I know this

Just let us know the “Table Definition Name” came from where?
You wrote “manually” IfcSpace or when you choose IfcSpace, you see the IfcSpace name as a Table Definition name?

The issue is here, you have to “write manually all those Table Definitions”

Otherwise you can select them form query or from documentation area

Victoria · June 24, 2019, 11:54am

Thank you for your answer. I can find them both in the tree:

But I don’t get what I should do with them. Do you mean copying an attribute from the tree and pasting it into the other? Can items be copied and pasted in the ifcDoc tool? The only option I get when I do right click on them is “Delete”.

Thanks a lot!!

ReD_CoDE · June 24, 2019, 12:42pm

I misunderstood

You have to add an attribute Type and its Inverse

Does it have the attribute? If yes, its type should be “ReelatingContext” and in inverse “Declares” or what you want to choose from possible ones

Victoria · June 24, 2019, 12:46pm

Sorry but I am pretty new to it and don´t get what you mean. Could you post an example or similar please?

Thanks a lot!!!

Victoria · June 24, 2019, 12:50pm

This is from buildingsmart web page and is what I would need:

StratArchi · June 24, 2019, 12:56pm

Yes, I do it “manually”… Although I might’ve skip something on SERGEJ instructions…

ReD_CoDE · June 24, 2019, 1:26pm

Victoria · June 24, 2019, 2:16pm

What do you select in Inverse? Declares?

Victoria · June 24, 2019, 2:48pm

well I’ve just seen that my problem is not how to add an inverse attribute but how to represent it.
I opened the IFC4.1 standard and saw this:

just one line with both the direct and its inverse attribute.
However, when you click on the IfcRelDeclares entity it suddenly changes to this:

where you can see that there are actually two lines, each of them for one attribute (the direct one and the inverse one). So my question is how to make it to just show one line with both attributes on it?

Sorry about the confusion.

ReD_CoDE · June 24, 2019, 3:11pm

See this:

IfcRelDeclares. RelatingContext
(INV) Declares S[0:?]

So I explained how to choose Attribute “Type” and “Inverse”
This is Type: IfcRelDeclares. RelatingContext
This is Inverse: (INV) Declares

And a little bit down you see:
Aggregation which you can set different modes
For instance: S means Set
And [0:?] is its value which you can set in a window opens after Aggregation
But many times it has issues and doesn’t show things well