Dynamic Aperture Group – Annual Daylight & Point-in-Time View-Based Study Issues

ladybug-tools
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Hi everyone,

I’m currently working on a daylight simulation using a Dynamic Aperture Group in Ladybug Tools. I am working with Ladybug version 1.8 and Pollination version 1.52.10
I’ve created a room from faces and set up two different façade states:

  • state0: blinds at 0°
  • state1: blinds at 45°

However, when I run the Annual Daylight recipe with these states, the simulation fails to proceed. Interestingly, if I run the same setup without any states (i.e., with a static façade), everything works as expected.

(I included a screenshot with the error from the setup)

dynamic aperture
dynamic aperture1920×1266 175 KB

I also have a related question:
Is it possible to run a point-in-time view-based study with different aperture states? Has anyone successfully done this, or are there known limitations?

Has anyone encountered similar issues with dynamic aperture groups? I have read the posts below, but honestly I am having trouble following them.

Dynamic State Geometry

Dynamic blinds

Dynamic shading

Could the problem be related to how I’ve defined the states, or perhaps something that happens after setting up the sensor grid?

I’ve attached my working file for reference. Any insights, suggestions, or troubleshooting tips would be greatly appreciated!
annual_daylight_dynamic_blinds.gh (156.5 KB)

Thank you in advance for your help,
Vicky

2

Hi @VickyM,

Welcome to the forum and thanks for sharing the file.

Here are some steps to correct your setup. I have attached the file with the changes.

  1. When adding the faces to the room you should not add the face with the apertures from HB Apertures by Ratio – if you do this you will add a static aperture on top of the aperture group.
    image
    image1843×879 125 KB
  2. Add the original aperture to HB Dynamic Aperture Group. You could also select just one of the apertures that you get from HB Deconstruct Object.
    image
    image2386×662 157 KB
  3. Remember to also add the occupancy schedule to HB Annual Daylight Metrics.
    image
    image1291×790 111 KB

annual_daylight_dynamic_blinds.gh (161.3 KB)

For Point-in-Time View-Based you have to create two models, one for each state, and then run two separate simulations. For these models you don’t need the aperture group – you can just add the aperture and the shades.

1 Like
3

@mikkel Thank you very much for your detailed explanation!
I really appreciate your help and support.