topic Re: Relevant Storey in GDL

Relevant Storey

DGSketcher — Wed, 30 Mar 2022 15:52:22 GMT

I have an object which spans multiple stories. If I stipulate a specific range e.g Home & One Storey Up or even All Stories it displays as expected. If I use the Show on Relevant Stories option the object display becomes limited to the Home Storey only. How does GDL determine if an object is "Relevant" to a storey view?

Re: Relevant Storey

SenecaDesignLLC — Wed, 30 Mar 2022 15:59:35 GMT

I totally thought I just messed something up, I have noticed this as well.

I have resorted to using story info in the object and using internal object settings to show it where I want.

Re: Relevant Storey

Barry Kelly — Wed, 30 Mar 2022 16:12:00 GMT

I am not sure, but is it anything to do with the height of the object - the ZZYZX parameter (not the elevation of the object).

Also in GDL there is 'ac_bottomlevel' and 'ac_toplevel' parameters.

I'm not sure if these play any part or not.

Barry.

Re: Relevant Storey

DGSketcher — Wed, 30 Mar 2022 16:29:09 GMT

Thanks for the quick responses.

Well spotted @Barry Kelly . I am beginning to think the home offset & ZZYZX values are ignored by a Relevant Storey request and the "ac_...level" parameters need to be populated by the GDL code. I shall go investigate some more...

Re: Relevant Storey

SenecaDesignLLC — Wed, 30 Mar 2022 16:50:26 GMT

so if i set the ac bottom level to be less than or equal to ac top level then i get relevant display to work. doesnt seem to matter how tall or short ac top level is.

Re: Relevant Storey

DGSketcher — Wed, 30 Mar 2022 16:51:13 GMT

Easy as that. Just transfer the relevant lowest and highest values relative to the object origin into the ac_...level parameters.

Re: Relevant Storey

DGSketcher — Wed, 30 Mar 2022 16:56:24 GMT

The values can be anything you want, but to correctly display with the Relevant display setting the bottom value would match the lower limit of your object relevant to its origin and the top value the upper limit. The top value must be greater than the bottom value.

Re: Relevant Storey

SenecaDesignLLC — Wed, 30 Mar 2022 17:20:32 GMT

Spoke to soon,

ac_bottomlevel
length
This parameter indicates the lowest point of the object. When Show on Stories is set to All Relevant Stories, if this lowest point (calculated from the object's home story settings) is contained in a story's vertical extension, the object is displayed on the story. Top level has to be above the bottom level. ac_bottomlevel starts from the object origin of the object.
ac_toplevel length
When Show on Stories is set to All Relevant Stories this parameter tells the top of the object. The object will be visible on a story if the story's height is between the bottomlevel and the toplevel. Top level has to be above the bottom level. ac_toplevel starts from the object origin of the object.

Re: Relevant Storey

runxel — Wed, 30 Mar 2022 20:52:16 GMT

Seems you've found out everything already.

Just for relevance sake see these posts.

Re: Relevant Storey

DGSketcher — Wed, 30 Mar 2022 21:13:05 GMT

Thanks. Did a bit of a search but this forum isn't... well you know 🙄. I didn't realise the parameters went back that far, I was thinking the "ac_" parameters were a recent addition.

Re: Relevant Storey

runxel — Wed, 30 Mar 2022 21:45:46 GMT

Haha, I know, I know.... (tbh I always use Google to find something, forums search was also trash in the old forum. Remember the infamous "search term is too common"? 😂)

Yes, they are quite old. I think they might even the oldest of the "ac_" ones.

What's funny about this is that these parameters are to be set by the programmer. Most of the other "ac_" params are actually getting set by Archicad while the object is being placed. But I guess they are just commonly reserved for "communication" between the Archicad kernel and GDL, which can go both ways.

Re: Relevant Storey

SenecaDesignLLC — Wed, 30 Mar 2022 22:05:52 GMT

Ive wondered what they were for, but never thought to look them up in the gdl manual. stoked you brought this up, going to make things nice for me lol

Re: Relevant Storey

Lingwisyer — Thu, 31 Mar 2022 01:52:21 GMT

https://community.graphisoft.com/t5/Design-forum/ac-bottomlevel-and-ac-toplevel-parameters/m-p/147095/highlight/true#M78967

Ew... ac_bottomlevel changes the "zero" point of the object, but that's suppose to be my static pivot point...

Sounds like I have run into the save issue as SinceV6...

Re: Relevant Storey

DGSketcher — Thu, 31 Mar 2022 02:20:17 GMT

@Lingwisyer Isn't it just a 2D relevance test? You are just saying to AC that from the object origin continue to display the 2D script if the lower limit is below the floor plan cut plane and the upper limit crosses the storey threshold. I haven’t tested but I assume this would work the same with just a 2D symbol object, the 3D modelling is irrelevant apart from any Project2 use.

Re: Relevant Storey

DGSketcher — Thu, 31 Mar 2022 02:30:40 GMT

Or more specifically that the limits fall within the displayed storey as there is also overhead projection settings to consider.

Re: Relevant Storey

Lingwisyer — Thu, 31 Mar 2022 04:14:10 GMT

ac_bottomlevel appears to change the Home Story Offset Value. Or more like the dialogue shows ac_bottomlevel NOT Home Story Offset of the origin. The outcome is that my pivot does not move but as the object rotates, this value changes so instead of being the elevation of my pivot, probably the most important information, it is the lowest point.