Simulating IES lamps file through RAD materials

Hi to everyone,

in this tutorial ( http://diva4rhino.com/page/simulating-luminaires-with-ies-files ) is shown a method to simulate a lamp in DIVA. Considering that the process is about a modding of radiance materials, do you think that it would be possible to do the same in honeybee?

To go deeper I have tried to do the tutorial about DIVA, but in its grasshopper version: it doesn't work. To be more precise, the material, applied to a brep, is not read by the DIVA daylight simulator. Actually I don't know if I'm mistaken about some details.

it would be great if only it could be possible in honeybee! for instance I have found this study which is pretty interesting to calculate lamps power consumptions directly in honeybee: https://sites.google.com/site/just4architecture/research/responsive...

Thank you,

Claudio

Replies are closed for this discussion.

Replies to This Discussion

Permalink Reply by Mostapha Sadeghipour Roudsari on April 23, 2014 at 8:04am

Sure. Sounds like a good ides. I will add -m option to the component, and I will check the links. Thanks again.

Permalink Reply by Claudio Campanile on April 23, 2014 at 4:54am

Hi,
Here it is. Actually I finished the work, got the results and.. It has stopped working right now. There should be a problem somewhere in copying luminaries (or at least, I made a mistake). What do you think about it?

Values seem to be fine:
- max difference 8% (E avarage)
- min difference 1% (uniformity)

I hope this is a great news,
Claudio

Attachments:

eval.rar, 2 MB
canvas.png, 141 KB

Permalink Reply by Mostapha Sadeghipour Roudsari on April 23, 2014 at 8:00am

Thank you Claudio. This is amazing! I will test the files this weekend.

Meanwhile what is the version of Windows that you are using and do you have administrative privilege on your system. I wonder if there is a permission issue that stops RAD2IES to run.

Mostapha

Permalink Reply by Claudio Campanile on April 23, 2014 at 8:39am

Win7 pro and I log in as the administrator. Anyway I'm going to check all my profile settings. Despite this you will be able to verify that 'HB_run_daylight simulation" component might give you back the 'IES luminaire 42915795_(STD) is scaled or rotated and cannot be added to the scene' error.

Thank you,

Claudio

Permalink Reply by Mostapha Sadeghipour Roudsari on April 26, 2014 at 2:40pm

Everything works fine here on my system. I internalize the results for you in the attached file.

Attachments:

IES2HB_WIP_II.gh, 452 KB

Permalink Reply by Mostapha Sadeghipour Roudsari on April 26, 2014 at 2:22pm

Hi Claudio,

I cannot download the .rar file. Can you upload it in another format (e.g. zip)?

Meanwhile I will check the IES file that you sent.

Permalink Reply by Claudio Campanile on April 26, 2014 at 2:56pm

Hi Mostapha,

Here it is the zip file. Running your new file it doesn't work... :-/

Meanwhile I'll check as much I can

Attachments:

eval_zip.zip, 2 MB

Permalink Reply by Claudio Campanile on April 26, 2014 at 2:57pm

Ok, it works. It needed just to disconnect an connect again the new component. What have you changed since the last time?

Permalink Reply by Mostapha Sadeghipour Roudsari on April 26, 2014 at 3:53pm

Good to know. I changed nothing in IES2RAD component! So strange... I will add -m option shortly.

Permalink Reply by Claudio Campanile on April 26, 2014 at 4:04pm

Well, it depends on how I create points where anchor lights. Once I create them I make some group of maximum 3 points each. I have no idea about the reason, but it works :)

Currently I'm trying to get out coloured meshes from a single analysis with 3 grids but it's quite difficult. Unflattening results it gives me back a couple of errors into the Python editor.

I think I'll make the analysis with one grid each.

Thank you

PS: -m, quite hyping!

Attachments:

screen.png, 469 KB

Permalink Reply by Mostapha Sadeghipour Roudsari on April 26, 2014 at 7:10pm

That sounds strange. I'll be happy to check your file if you couldn't figure it out. I added -m option and copied light 9 times in a single room and it all works fine. Check the attached file.

Back to the error it is my bad! I mistakenly copied a newer version of Ladybug_Ladybug in the example file which is not backward compatible. If you drop the Ladybug_Ladybug component from Ladybug tab into the canvas and try again it should work all fine.

Mostapha

Attachments:

IES2HB_WIP_III.gh, 126 KB

Permalink Reply by Claudio Campanile on April 28, 2014 at 7:01am

Wow, it works very good. I did a small change to the line 141:
if modifier!=None and not 0 < modifier < 1:
if modifier!=None and not 0 <= modifier <= 1:

It seems to be working either with 0 and 1 values. I'm going to do my study as soon as possible, I'll let you know the results posting a little summary.

Thank you for all your work,

Claudio