Working with Hotlinks and Live-Connection

Windows 10 20H2
ArchiCAD 23 (Built 6004 GER FULL)
Rhino 6 ( SR34 - 6.34.21034.7001)

Dear Community,

I am a bim-developer in an architecture company. My job is to use Grasshopper to build tools, which facilitate the work of our draftsmen and designers. Right now, my colleague and I are having some trouble working with hotlinks and the live connection.

Problem:
When capturing the Archicad elements (AC) within a linked hotlink module (elements such as: walls, ceilings, etc.), we have found that the Grasshopper nodes (GH) do not grant a consistent transfer of the geometry / information to Rhino (RH).

Using the “try-and-error method”, we have been able to determine some strange correlations:

  • A general problem always appears if you first select the elements in AC and then assign them in GH.
    a.) This way is advantageous if you want to feed many of the same elements (set multiple…) into the GH node in a large project.

  • In the opposite direction (assign in GH >> select in AC) everything works smoothly, but you have to select all the desired elements individually (one by one).

  • Furthermore, it seems that the (de)activation of grouping has an influence on the selection of elements in hotlink modules

  • We also noticed that when grouping is deactivated and the selection of hotlink elements and non-hotlink elements is mixed, the HL elements are omitted so that only the non-HL elements are included.

Since working with hotlinks is an essential part of our workflow, we would like to ask you for advice or find a common solution with you to use the Live Connection more efficiently.

Hopes & Wishes :smiley:
Our wish would be to be able to use the hotlink elements like “normal” elements without having to interrupt them. It would be even more desirable if we could address hotlinks separately as a “set” of different elements via a separate GH node (input parameter), but here for our programming abilities are way to low … :sweat:

Has anyone had similar experiences, or do you have any tips on what else we could do to load the module elements and non-module elements simultaneously?
It is important for us that, for example, the walls are loaded without interruption in GH, as we want to check their drawing direction there in order to highlight the wrong walls.

Greetings from Leipzig
nem_ida

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Dear @m.moradi
Thanks for sharing your workflow with the Live Connection. I always appreciate fellow ArchiCAD/GH users sharing what they are actually doing with these tools. I have not previously used the Live Connection together with Hotlinks, as far as I remember , except for one instance in which I used GH to apply a facade on a building, that was comprised of identical room modules (which were in turn modelled using Hotlinks in ArchiCAD), however I don’t recall, if I picked the elements first in AC or later in GH.
The power that can be leveraged if we use GH and hotlinks to speed up the workflow is amazing, and I am happy to hear about your work on this. would love to hear how it goes.
As for your wishes and hopes, I think you should post them to the Graphisoft Forum as the Live Connection is developed by them and not here by McNeel.
I however feel that the Live Connection is not at all a priority for the folks at Graphisoft, which I am very sad about (see recent troubles with update to rhino 7, and ArchiCAD 24). So posting on the Graphisoft Forum will increase visibilty and ensure that they know people are actually using this tool in production and care about it. I don’t really understand how they sleep on this tool as it has the potential to really enhance what ArchiCAD can do. Rhino.Inside.Revit shows how a cooperation can push things further. (Still prefer ArchiCAD personally, and will use the buggy Live Connection for now, but I dearly wish there was more support on the matter).
I will share my findings here when I try out ArchiCAD Hotlinks with the Live Connection.
Have a good one,

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https://archicad-talk.graphisoft.com/viewforum.php?f=43&sid=ecf04c4d5ff1c02602a5d530a44621ff

That’s the sub-forum dedicated to the live connection over at the archicad forum. :sweat_smile:

1 Like