topic Re: Export daylight results from Grasshopper back to ArchiCAD in Parametric design

Export daylight results from Grasshopper back to ArchiCAD

Anonymous — Thu, 11 May 2023 09:07:51 GMT

Hi,

I'm doing a daylight analysis through Grasshopper from ArchiCAD drawings. I'd like to send back my results with the daylight grid but it seems not possible to export my daylight grid from grasshopper to ArchiCAD. Do you have any idea of how to deal with it?

Best,

Frank

Re: Export daylight results from Grasshopper back to ArchiCAD

furtonb — Thu, 03 Jan 2019 01:35:22 GMT

I would just save an image from the results (assumed you meant the coloured mesh with the metrics), place it as a drawing, adjust the boundary/scale and call it a day.

Re: Export daylight results from Grasshopper back to ArchiCAD

Joe Putnam — Fri, 04 Jan 2019 03:41:27 GMT

I often bake the color gradient directly to the mesh this way it can be saved and reused to create new images or rendered in any render engine if exported out of rhino. I have not tried to send that to Archicad but it may work. If you need the values for anything I suppose just dumping to excel is useful for that or a custom GDL object and you could transfer that to Archicad via grasshopper.

Re: Export daylight results from Grasshopper back to ArchiCAD

Anonymous — Fri, 11 Jan 2019 01:21:34 GMT

U may export gradient color morph to AC if u could

Re: Export daylight results from Grasshopper back to ArchiCAD

furtonb — Fri, 11 Jan 2019 10:12:30 GMT

AFAIK gradients won't import.

The reason would be import as an image, is not to mess up your attributes, as each Rhino colour is going to be imported as a separate "Surface" - so if you bake a coloured mesh from the analysis result, you will be fine, you will have your analysis mesh in ARCHICAD. If you are doing a fine analysis, it is going to be dozens, which I would rather not pollute my file with. The import won't change your linetypes to the respected colours, so you either create
- a 3D document to clean up from the boundary lines (both 2D and 3D analysis)
- openGL view (both 2D and 3D)
- import the result as an image, scale it to fit your floor plans (2D only).

The benefits of creating a 3D document is the vector quality over a raster image, which could be easily overcome via saving a larger image. To achieve that, you can use the "ViewCaptureToFile" instead of "ScreenCaptureToFile" command in Rhino. You can set up a decent resolution and no one will notice a drop in quality in your drawings. To see the results in BIMx/openGL, just create a Surface with your image.

Re: Export daylight results from Grasshopper back to ArchiCAD

Nader Belal — Wed, 23 Jan 2019 15:59:02 GMT

To all,

Exporting gradiants color from Rhino to ArchiCAD is problematic, and you can observe this fact by making the comparison that while Rhino/GH mesh do have 3 points/colors gradiants (the norm), ArchiCAD can only accept 2 (proof: check your ArchiCAD Reference manual about gradiant fills and GDL Reference manual)

So to bypass this problem you can proceed in one of the 2 solutions I'll mention:
1- Pixelate the result, make regions in Grasshopper that include a range of a result, each region have a solid color (Pro: easy to implement, and easy to keep it updated).
2- Export solution as an image. (Pro: easy to implement, & less demanding on your computer resources. Con: manual updating/i]).

Re: Export daylight results from Grasshopper back to ArchiCAD

Anonymous — Fri, 15 Mar 2019 10:31:24 GMT

Hi all,

Thanks for your answer. I think that just exporting as an image works well. So at the end that how i'm doing it. But I'm interesting about the 1st bullet point you explain Moonlight. Could you describe a bit more the process to pixelate the results and make regions in grasshopper? I'm not sure to understand how to do it.

Best,

Frank

Re: Export daylight results from Grasshopper back to ArchiCAD

Nader Belal — Sat, 16 Mar 2019 17:50:29 GMT

Actually there two ways to do this depending on the geometry that you try to apply for:

1- If the the model was a mesh (Rhino's geometric entity & not AC terrain MESH), you will not need to divide the surface since that the mesh is formed by a number of planes (i.e: already divided) do you assign a point of reference for your desired calculation, and use the result to represent the whole individual plane.

2- If the model is a surface (for example a Nurbs Surface), you will divide it into a number of mini-surfaces, and then again you will assign a desired point of reference for each plane and consider the calculation result at this point as true for that plane.

TL;DR
1- Easier to do than to explain.
2- Send me an example file of what you're trying to do, and I will send back the GH definition.

Re: Export daylight results from Grasshopper back to ArchiCAD

Anonymous — Thu, 28 Mar 2019 09:40:22 GMT

Hi Moonlight,

Thanks for your reply. I'll send to you a GH definition for what I'm trying to do in few days. I'm working on other projects right now but I really appreciate your help.

Best,

Frank

Re: Export daylight results from Grasshopper back to ArchiCAD

Nader Belal — Fri, 29 Mar 2019 03:47:55 GMT

Just send an example

Re: Export daylight results from Grasshopper back to ArchiCAD

Anonymous — Fri, 29 Mar 2019 10:07:04 GMT

Hi Moonlight,

Here it is, that's a quick example. If you need more things just let me know. The goal is to send my results (daylight factor) to ArchiCAD. Those are meshes.

https://ufile.io/1ego4

Best,

Frank

Re: Export daylight results from Grasshopper back to ArchiCAD

Nader Belal — Mon, 01 Apr 2019 08:54:45 GMT

Hi Gerhard,

Sorry I was quiet busy creating GDL objects for a client, and I have just seen your message right now

Here is my personal email:
naderbelal2002@gmail.com

And be persistent, as I usually tend to forget to do things.

Re: Export daylight results from Grasshopper back to ArchiCAD

Nader Belal — Tue, 02 Apr 2019 09:35:27 GMT

@Frank Gergaud

I have just seen that you had a nice problem to solve and quiet unusual .

For 2D geometries:
ArchiCAD associate preconfigured Pens to geometries, so:

it may be advisable to create a specific pen table just for exporting results, and in my opinion, not bad, but not a good answer either

Another way is to create a GDL that will be independent from ArchiCAD's Pen table

Re: Export daylight results from Grasshopper back to ArchiCAD

Anonymous — Mon, 08 Apr 2019 06:43:45 GMT

Hi Moonlight,

Thanks for your support I really appreciate it

I never create any GDL object so I'm not sure about how to deal with it. Do you have any example of how to do with GDL object for exporting results?

Have a nice day,

Frank

Re: Export daylight results from Grasshopper back to ArchiCAD

Nader Belal — Mon, 08 Apr 2019 15:34:28 GMT

I´m working on it

Re: Export daylight results from Grasshopper back to ArchiCAD

Anonymous — Wed, 10 Apr 2019 06:30:59 GMT

Nice Good luck