Anyone have experience with different grid set-up for daylight calculations? Spacing, size, form (square/triangle/hexagon) etc. I guess this will have some impact on large scale optimization simulations. I prefer to have a continuous equally spaced grid as shown on the left side in the figure below, although this get messed up when one wall is sloped. I am thinking about doing some testing, any suggestions? Something we can learn from rigging CFD calculations?
You may be happy to know that I just added in a quad_only_ option to the LBT plugin components that generate grids. For example, you can now get a grid similar to the one on the left of your image by setting this option to True.
The method we use is effectively the same as what is in this thesis document and it ensures that all mesh cells occupy the same area.
The component with the new option is currently in the development version of the plugin (which you can get with the “LB Versioner”). This also means that it will be in the stable release this week.
Do you know if there is any way to define where or on which side the grid will start from? Because my sensor points closest to the windows are uneven, i would like it to have a nice front facing the window. Example below from the lab building sample file
I could map the lines with “closes point” to each window. But i dont know where to input this for the mesh, because it looks like it the mesh uses the first list element for the edge curve for reference.
There is a way to set the orientation of the grid in the Ladybug Tools SDK but I don’t think there’s a way that I can expose it that’s going to be “fool proof” because, if someone supplies an orientation that is out of plane with the base surface, I really don’t have much of a choice but to throw an error. So, for advanced users like yourself, who really want to tinker with the orientation of the grid, I wrapped this capability into the quad_only_ option with a note in the description that the feature is just for advanced users who can generate the vector correctly.
The way that you can access it is by inputting a vector with the given orientation that you want for the quad_only_ option like so:
