Topic: xdata acad mep?

[Amsterdammed]

Hello,

i try to figure same longshot out here. part of the solution could be xdata Manipulation in acad mep. Does anybody know here if there is a way to read xdata from acad mep objects created by ifc import out Revot mep? i need to do some automated work i cant get done in Revit, i thought i might be lucky in ACAD mep.

Thanks Bernd

 

[Amsterdammed]

Did i phrase did stupid or is there really nobody here who knows if there's a way to extract all the non graphical information from an acad mep object in vlisp???

all help or hints would be very much appreciated !!

Thanks Bernd

[ChrisCarlson]

I'm not sure what kind of information is stored but what is the result of this?

Code - Auto/Visual Lisp: [Select]

1. (entget (car (entsel)))

[ronjonp]

To see xdata you'll need to provide the applist portion of entget:

Code - Auto/Visual Lisp: [Select]

1. (entget (car (entsel)) '("*"))

[Amsterdammed]

thought so too, i worked a lot with xdata, but its not "there". so i guess they acdaMEP works with xrecords or dictionaries?

[ChrisCarlson]

Code: [Select]

Command: xdlist
Initializing...
Select object:
Enter application name <*>:
No Xdata associated with Application Name(s).
Object has 16383 bytes of Xdata space available.
http://adndevblog.typepad.com/aec/2012/08/revit-dwgdxf-export-specification-of-the-extended-data-xdata.html

I don't have AutoCAD MEP but I recall seeing a screenshot showing a properties window in MEP showing the (for the lack of a better phrase) advanced properties.

//Edit
How did you export the IFC from Revit? Is it possible you exported it without attaching any additional information?

[JohnK]

Attached is the IFC I exported.

[ChrisCarlson]

That's annoying, Vanillia AutoCAD has ifcimport turned off.

[Amsterdammed]

@Chris,
the link you attached is revering to what is attached when you export an entity with the REVIt build in export function.
the solids have described xdata attached, i will study your link if i can ge tany wiser form the link. I

But John pointed me  (in the Revit forum on this site) to the IFC export option and then import that in ACAD mep. but those elements do not have xdata, but either xrecords or dictionaries, bot h not my favorites in other words, i don;t know enough about hem to extract all the info available. But in ACAD mep properties there is a tab called xdtata showing the properties i am interested in to create my shop drawings as i did in acad  but then fram a REVIT model.

Bernd

[Amsterdammed]

i attach again the elbow as dwg John created and i imported in MEP and saved as drawing.

[roy_043]

thought so too, i worked a lot with xdata, but its not "there". so i guess they acdaMEP works with xrecords or dictionaries?

The object (dwg from post #4) has an extension dictionary:

Code - Auto/Visual Lisp: [Select]

1. (dictsearch
2.   (vlax-vla-object->ename
3.     (vla-getextensiondictionary (vlax-ename->vla-object (car (entsel))))
4.   )
5.   "AEC_PROPERTY_SETS"
6. )

=>

Code: [Select]

(
  (-1 . <Entity name: cba2e28>)
  (0 . "DICTIONARY")
  (5 . "1F637")
  (102 . "{ACAD_REACTORS")
  (330 . <Entity name: cba2de8>)
  (102 . "}")
  (330 . <Entity name: cba2de8>)
  (100 . "AcDbDictionary")
  (280 . 1)
  (281 . 1)
  (3 . "*A1")
  (360 . <Entity name: cba2e68>)
  (3 . "*A10")
  (360 . <Entity name: cba33e8>)
  (3 . "*A2")
  (360 . <Entity name: cba3468>)
  (3 . "*A3")
  (360 . <Entity name: cba2ee8>)
  (3 . "*A4")
  (360 . <Entity name: cba3028>)
  (3 . "*A5")
  (360 . <Entity name: cba30a8>)
  (3 . "*A6")
  (360 . <Entity name: cba3128>)
  (3 . "*A7")
  (360 . <Entity name: cba31a8>)
  (3 . "*A8")
  (360 . <Entity name: cba3228>)
  (3 . "*A9")
  (360 . <Entity name: cba32a8>)
)
The "*A1" etc. entries are (0 . "AecDbPropertySet") entities.

[Amsterdammed]

Roy,
I seem to be unable to retrieve information from that *A1 to *A10. if i try with entget i just get deeper into the (360. entity ) crap and don't seem to know what i am looking for.

 How does that work?

Thanks
Bernd

[roy_043]

I don't know what you should be looking for either, but the gc 360 entities contain the data. And I do see some form of data formatting (curly brackets):

Code: [Select]

  (102 . "{AEC_VARIANT")
  (70 . 72)
  (309 . "Standard")
  (102 . "AEC_VARIANT}")

Code - Auto/Visual Lisp: [Select]

1. (dictsearch
2.   (cdr
3.     (assoc
4.       -1
5.       (dictsearch
6.         (vlax-vla-object->ename
7.           (vla-getextensiondictionary (vlax-ename->vla-object (car (entsel))))
8.         )
9.         "AEC_PROPERTY_SETS"
10.       )
11.     )
12.   )
13.   "*A1"
14. )

=>

Code: [Select]

(
  (-1 . <Entity name: cc1f438>)
  (0 . "AecDbPropertySet")
  (5 . "1F638")
  (102 . "{ACAD_REACTORS")
  (330 . <Entity name: cc1f3f8>)
  (102 . "}")
  (330 . <Entity name: cc1f3f8>)
  (100 . "AecDbObject")
  (170 . 70)
  (102 . "{AEC_SUBOBJECT")
  (300 . "AecImpPropertySet")
  (100 . "AecImpObj")
  (170 . 70)
  (3 . "")
  (100 . "AecImpDictRecord")
  (170 . 70)
  (3 . "")
  (100 . "AecImpPropertySet")
  (170 . 70)
  (340 . <Entity name: cc1f378>)
  (341 . <Entity name: c989fb8>)
  (102 . "{AEC_PROPERTIES")
  (100 . "AecImpObj")
  (170 . 70)
  (3 . "")
  (100 . "AecImpArray")
  (170 . 70)
  (90 . 5)
  (102 . "{AEC_SUBOBJECT")
  (300 . "AecProperty")
  (100 . "AecImpObj")
  (170 . 70)
  (3 . "")
  (100 . "AecProperty")
  (170 . 70)
  (92 . 0)
  (70 . 2)
  (71 . 0)
  (102 . "{AEC_VARIANT")
  (70 . 72)
  (309 . "Standard")
  (102 . "AEC_VARIANT}")
  (102 . "AEC_SUBOBJECT}")
  (102 . "{AEC_SUBOBJECT")
  (300 . "AecProperty")
  (100 . "AecImpObj")
  (170 . 70)
  (3 . "")
  (100 . "AecProperty")
  (170 . 70)
  (92 . 6)
  (70 . 2)
  (71 . 0)
  (102 . "{AEC_VARIANT")
  (70 . 72)
  (309 . "Elbow - Generic:Standard:945841")
  (102 . "AEC_VARIANT}")
  (102 . "AEC_SUBOBJECT}")
  (102 . "{AEC_SUBOBJECT")
  (300 . "AecProperty")
  (100 . "AecImpObj")
  (170 . 70)
  (3 . "")
  (100 . "AecProperty")
  (170 . 70)
  (92 . 9)
  (70 . 2)
  (71 . 0)
  (102 . "{AEC_VARIANT")
  (70 . 72)
  (309 . "")
  (102 . "AEC_VARIANT}")
  (102 . "AEC_SUBOBJECT}")
  (102 . "{AEC_SUBOBJECT")
  (300 . "AecProperty")
  (100 . "AecImpObj")
  (170 . 70)
  (3 . "")
  (100 . "AecProperty")
  (170 . 70)
  (92 . 11)
  (70 . 2)
  (71 . 0)
  (102 . "{AEC_VARIANT")
  (70 . 72)
  (309 . "945841")
  (102 . "AEC_VARIANT}")
  (102 . "AEC_SUBOBJECT}")
  (102 . "{AEC_SUBOBJECT")
  (300 . "AecProperty")
  (100 . "AecImpObj")
  (170 . 70)
  (3 . "")
  (100 . "AecProperty")
  (170 . 70)
  (92 . 24)
  (70 . 2)
  (71 . 0)
  (102 . "{AEC_VARIANT")
  (70 . 72)
  (309 . "25$nBY7K515ua5eCwjNgIb")
  (102 . "AEC_VARIANT}")
  (102 . "AEC_SUBOBJECT}")
  (102 . "AEC_PROPERTIES}")
  (102 . "AEC_SUBOBJECT}")
  (102 . "{AEC_NULLOBJECT}")
  (100 . "AecDbDictRecord")
  (170 . 70)
  (100 . "AecDbPropertySet")
  (170 . 70)
)

[roy_043]

Alternative way to get the entity list in my previous post:

Code - Auto/Visual Lisp: [Select]

1. (entget
2.   (cdar
3.     (cdr
4.       (member
5.         '(3 . "*A1")
6.         (dictsearch
7.           (vlax-vla-object->ename
8.             (vla-getextensiondictionary (vlax-ename->vla-object (car (entsel))))
9.           )
10.           "AEC_PROPERTY_SETS"
11.         )
12.       )
13.     )
14.   )
15. )

[Amsterdammed]

i don't get what you get out of this....

Code: [Select]

((-1 . <Entity name: 3a55dab500>) (0 . "AecDbPropertySet") (5 . "1F638") (102 . "{ACAD_REACTORS") (330 . <Entity name: 3a55dab4f0>) (102 . "}") (330 . <Entity name: 3a55dab4f0>))

is what i get in acad mep.

[Amsterdammed]

this is what mep reads out of that object., see attachment

[roy_043]

i don't get what you get out of this....

Code: [Select]

((-1 . <Entity name: 3a55dab500>) (0 . "AecDbPropertySet") (5 . "1F638") (102 . "{ACAD_REACTORS") (330 . <Entity name: 3a55dab4f0>) (102 . "}") (330 . <Entity name: 3a55dab4f0>))

is what i get in acad mep.

Well, I use BricsCAD V16. Strange that AutoCAD has this problem. I think that the data you are looking for is present in the extension dictionary (look at gc 309 in the entity list for example). But connecting all the dots may prove to be too time-consuming anyway.

[Amsterdammed]

I saw that you are not in acad and was afraid of this might be the difference. time consuming or not, i need to figure out a way to get the funcionality from my acad shop drawing vlisp into REVIT MEP. all Revit gurus are telling me that it isn't here yet, so i try to find a different way in the mean time. but since there are a lot of shop drawings to be made, i don't mind poking a bit

[roy_043]

... i don't mind poking a bit

The data is also present in the .ifc file (post #6)... So dissecting that file may be the way to go.

#334= IFCPROPERTYSINGLEVALUE('Nominal Radius',$,IFCLENGTHMEASURE(0.0416666666666667),$);

[Amsterdammed]

#334= IFCPROPERTYSINGLEVALUE('Nominal Radius',$,IFCLENGTHMEASURE(0.0416666666666667),$)

where do you get that from out of the ifc information? in acad i can import ifc, so i went through acad mep to import. can you import in brisb?

[roy_043]

The quoted line is directly from the .ifc file (which is a plain text file).

[Amsterdammed]

i see, you just open that file. if i could find the acad entitiy the properties revere to, this might be it indeed.