Selecting objects with specific extended data in a script (lisp or dynamo)

[filip]

I do not find the extended data of an object bij selection with (car (entsel)) in lisp

Is there a way to view the extended data and modify it  ?

I have no experience with Dynamo-scripts, but maybe there allreday exist a script for these issue.

[hosneyalaa]

@filip 

Can you attached example drawing

[filip]

Hello,

In attach you find a dwg with many objects where we add extended data properties.

For instance :

- tree (Block "Boom_1") has xdata "Bouwheer" (= the builder) or "Type" (= sort of tree)

- haches, lines, pipes and structures have also extra properties according to make tables of quantities

- in the xref 'IMKL' you can see the location of the gas pipes, waterpipes, cables, ... of different compagnies with extended data of the sort of cable or pipe.

I 'm interested in a script that can select objects by property of the extended data and can modify the extended data. I looked in the database (with a dxf-file, search in the file by entityname or by vlax-ename) but i didn't find the extended data-properties. 

See also https://help.autodesk.com/view/CIV3D/2024/ENU/?guid=GUID-A94BC605-5517-437F-A6FE-D3EB8116A01A

[hosneyalaa]

hi

I did not find  Xdata 
do you mean  property sets

[filip]

Yes, where can I find these properties in the database ?

[hosneyalaa]

Trying  

https://forum.dynamobim.com/t/using-whileloop/91457/3?u=hosneyalaa

 

[filip]

Thanks for the script, it works.

I'm still interested how to manage the property sets in lisp, because I don't understand why I can't see the group code -3 of the entity. Is the desciption of the help-page https://help.autodesk.com/view/CIV3D/2024/ENU/?guid=GUID-A94BC605-5517-437F-A6FE-D3EB8116A01A mislea...

[hosneyalaa]

@filip 

Can you reading this

Until you are  understand Extended Entity Data

https://www.afralisp.net/autolisp/tutorials/extended-entity-data-part-1.php

[filip]

Is the conclusion that "extended entity data" (see example Afralisp) and the extended data of property sets are two different things ? That's really confusing !

[hosneyalaa]

And there are object data table

https://help.autodesk.com/view/CIV3D/2024/ENU/?guid=GUID-072A678F-E210-40D2-A829-D98A6C473509 

 

[filip]

Yes, that's exactly what we do in our drawing that I send you : we make our own data-fields.

But why we can't see them in the list of entity groupcodes ?

I was thinking that the 330 or 360-codes maybe hide these data

In AutoCAD Help I found this :  https://help.autodesk.com/view/ACD/2024/ENU/?guid=GUID-51B921F2-16CA-4948-AC75-196198DD1796

[Jeff_M · Accepted solution]

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@filip wrote:

Yes, that's exactly what we do in our drawing that I send you : we make our own data-fields.

But why we can't see them in the list of entity groupcodes ?

Because property sets are an Architecture based feature and is not available for Civil3D/AutoCAD users in lisp. It is available in .NET, which makes it available in Dynamo.

[filip]

Thank you, Jef !

[ahuygen]

Project Explorer can be used to access all property set data in dwg . Also filter and select them. like a data table tool.

[willem.creffierKCWFB]

Hi @filip 
yes, reading the values of extended data seems useful, but apparently it only exists for Map features or Cogo Points.

Did you proceed on this?

Kind regards,

Willem