HB Annual Simulation Problems

Hello every one,

I run in to a problem while doing a DLA analysis. First of all let me explain the project. We’ve created an artificial topography with 2 courtyards that brings daylight to a library organized around the courtyards.

Because the geometry it’s a bit complex I did not used the HB Masses to Zones component. I’ve also give the surfaces and massing a singular white opaque material as I only care for the window (glass material). I just want to calculate the DLA index on the surfaces of the library that it’s organized around the courtyards.

So I input the geometry in to GH run the analysis and somehow I don’t get any results. As if no light when through the windows surrounding the courtyard.
I’ve also did an image based simulation (illuminate type) in order to visualize the geometry as seen by radiance and it looks like the glazing is all black. I did verify the normal and they are all point outwards.
I was wondering also if LB re-color mesh component only work on flat lists. As the test surfaces are on a data tree structure and the component does not seams to read the same amount of meshes (message: length of the results [=X] is not equal to the number of mesh faces [=Y]). Even If I flatten the mesh list.

So any help would be much appreciate. We are at stage that we need to understand the daylight amount in the library as it’s a very important area of the project

Attached you’ll find the weather file, rhino and gh file

Thank you all in advance

Attachments:

CAN_PQ_Montreal.Jean.Brebeuf.716278_CWEC.epw, 1.5 MB
Esquisse_05_Env_Analysis.3dm, 518 KB
esquisse-05_DL.gh, 139 KB

Replies are closed for this discussion.

Replies to This Discussion

Permalink Reply by Claudio on June 17, 2014 at 10:19am

Update:

I've noticed that my sloping SRF (topography) has geometry blocking the light from the test surfaces. I just deleted (rhino file updated and attached). I also used one of the courtyard srf for a DLA analysis (image 01) that returns the correct values. As soon as I explode the library geometry and use one of its surfaces instead as a test Srf. I get errors (image 02). Hmmmm!

I even created a separate surface floating on top of the roofs and run the DLA analysis and I get the same error (can't find the results from the study - RunDaylightSimulation component) and (length of the results is not equal to the number of meshes from the - ReColorMesh component_)

OK I' m lost

Attachments:

Esquisse_05_Env_Analysis-02.3dm, 530 KB

Permalink Reply by Claudio on June 17, 2014 at 11:06am

Update-02:

First problem found, the glazing material has 0 transmittance....

Permalink Reply by Claudio on June 17, 2014 at 12:08pm

Last update, Problem solved

The Grid Size for the test Surface wasn't small enough.

cheers

Permalink Reply by Claudio on June 17, 2014 at 12:29pm

Still not able to group all the test srfs into one simple flatten list in order to plug them all on the create grid component. Otherwise it works but I have to go surface by surface and then bake.

Permalink Reply by Mostapha Sadeghipour Roudsari on June 20, 2014 at 3:36am

Hi Claudio, What do you mean by grouping surfaces? You can connect multiple surfaces to genTestPts component and it should work fine.

Permalink Reply by Claudio on June 20, 2014 at 11:42am

Dear Mostapha,

Thank you again for your time. Well my problem is not the genTestPts component its the recolor mesh component from LB. It does not recognize the amount of mesh faces v/s the results lenght. Other wise the runday analysis component returns the correct values.

Permalink Reply by Mostapha Sadeghipour Roudsari on June 20, 2014 at 12:22pm

Either try to flatten and join all the meshes and input the joined mesh, or remove flatten from _analysisResult input. Either one should solve your problem.

Permalink Reply by Claudio on June 23, 2014 at 7:23am

HI Mostapha

It does work. I removed the flatten from analysis results input - mesh and also LegenPar (but no required) and it works. Something boaders me tough is that the legend repeat It self, but I can deal with it.

cheers

Permalink Reply by Mostapha Sadeghipour Roudsari on June 23, 2014 at 5:26pm

Hi Claudio,

If you want to only see one legend then you need to join all the meshes into a single joined mesh and flatten result inputs, otherwise component takes them as 3 different input lists and that's why you get 3 legends.

Cheers,

Mostapha

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