Hello!
In the Envimet Grid component there are the four “addCells”, and they are set as Default to 2. In my model they add 2 grids in the lower and the left side and 3 in the upper and in the right side. If I set these values to zero, it adds the same grids anyway.
Is there a way to add ZERO cells?
Thank you!
Marcello
…anyone can help please?
This is probably question that is best answered by @AntonelloDiNunzio as he authored the Envi-met components.
Hi @Marcello,
Sorry for my late reply. the border cells cannot be less than 2 for now because of the method that it uses to calculate the sparse matrix algorithm. Could you tell me what is your goal so I can see if I can help you in some way?
A useful info:
A rule of thumb says the distance between buildings and the border has to be about 1/2 (or better 3/4) of the height of the highest building.
Best,
Antonello
Hi @AntonelloDiNunzio
Thank you for your reply.
My goal is to reduce the time of calculation, as I need to run 840 simulations.
In my models I always remained in the safe side, calculating 1/1 of the height of the buildings as distance from the border.
I attach here my file.
Prova.gh (414.9 KB)
As you can see, the main grid is 2 cells wider than the soil in the lower and left side and 3 cells wider (why 3?) on the upper and right side.
I might reduce the dimensions of the soil, as I am interested only in what happens inside the canyon between the two buildings, but then the bulding on the right would be partially outside the soil…and it could be a problem, right?
Thank you for your time. Don’t worry, you were not late…considering that you are doing it on a volountary base!
Ciao!
Marcello
Hi @Marcello,
I understand the reason now, 840 simulations are so many with envimet.
I think you can use a simple 2.5D modeling instead of the complex 3D modeling of envimet. I share a definition that lets you create all your small models accurately, I use another plugin based on the dragonfly envimet components, but I would like to bring the same principle of the grid to dragonfly-legacy as well.
Instruction and plugin here: https://github.com/AntonelloDN/Morpho (Remember to unlock the zip file)
After that, I think you can continue with Dragonfly envimet components to set simulation files and iterations.
Prova_dna.gh (436.9 KB)
Best,
Antonello
Thank you @AntonelloDiNunzio for this plug-in.
I am using it to set all my inx files.
I encounter an error when I set the receptors.
When I connect the inx Grid to the Receptor component, I get this error message: “Runtime error (ArgumentTypeException) : expected Vector, got Point3d”
What am I doing wrong?
I attach the Grasshopper file.
Prova_dna.gh (454.6 KB)
Thank you a lot!
Marcello
Hi @Marcello,
you should set the workflow in this way:
Best,
Antonello
