Grasshopper

algorithmic modeling for Rhino


Currently I am trying to model my space with two shading groups with 2 shading states in each of them. However, the daysim annual simulation would not run possibly due to a bug in the .hea file. 

the following is the shading control part of my .hea file generated from honeybee. I believe the 1 underneath represents the number of the states I input. When I switch both of the "1" within the .hea. The batch files would start the process but there is another bug for the gen_gdp_profile. It was having problem with .oct that it is looking for outside_daysim.rad which is not exist in the tmp within the folder. 

I am still running the gen_dc and I will update it over if I encounter any error after editing the .hea file. 

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From Sarith's and Mostapha's opinion on the daysim dgp, I have two questions based on that. 

1.) Is there anyway to perform annual glare analysis (dgp) without doing a loop in the image based analysis?

2.) If I have dynamic shades control in my building, is there anyway to model it without running the glare analysis in daysim, since the dsparameters require to perform either annual glare analysis only or annual glare analysis and annual illuminance study?

To answer the first question, with whatever functionality is already is existing in Honeybee at the moment, the most straight-forward way to do this (in my opinion) would be to:

1. do a simplified DGP calc based on (http://ibpsa.org/proceedings/BS2007/p231_final.pdf) . To do this you'd have to do a single point vertical illuminance calc,  which is very easy with Daysim. This result is valid only for those hours for which sun isn't directly visible in your field of view.

2. Identify those hours for which sun is visible from your view point based on sunlight hours calculations.

3. Run a glare calculation for those hours. You can probably pick one-in-three cases and cut down the time for calcs further.

4. A more invasive method, described in (https://www.ibpsa.org/proceedings/BS2009/BS09_0944_951.pdf), requires getting illuminance values from daysim and luminance-based values from evalglare. That will require some additional outputs to be added to the existing Honeybee_Glare Analysis component.

Clear all of this with your advisor first!

@ Mostapha, I might have found another bug relating to this. 

Going back to my project where I have >300 points of measurements, I believe Honeybee/Daysim will separate the points into three files to work. However, the worksfiles_InitDS.bat only perform radfiles2daysim for the first part of the points. 

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