I’ve spent a good while going through David Rutten’s Grasshopper tutorials and I feel like I have a basic understanding of how to use it now.
I’ve gone though your explanations too and I think that the project lines to surface one is more relevant.
To clarify: what I am trying to do is create a model of an installation of lightbulb pendants which I will then manufacture in reality.
Step 1 was to design the bulbs and pendants in rhino:
Next was to design the topography that the bulbs are going to follow (based conceptually on the form of the underside of the canopy of an Oak tree - I have not finalised this topography but I am using an arbitrary topography initially just to get an understanding of how to do it)
So now I need to array the pendants in a grid which follows the topography so that I can visualise it and work out what the best topography is. So I’m hoping that by understanding how to do this with a simple object (like a line or sphere) I will then be able to apply it to the more complex forms of the pendant model
The pendants will be hung from a flat ceiling so ultimately the original topography will be deleted, the cables will be cut and fixed to the flat ceiling plane and the individual lengths of the cables in each position will be of most interest as these will be the lengths which I will have to measure out in reality when creating the installation. ie these lengths will determine the topography that the bulbs create when they hang
Ive attached the files you sent over which I have modified slightly… there are two cases I was experimenting with (they are both in one file). In the first I have included a Brep which is just a sphere I’ve drawn in Rhino then arrayed. The output of the data from the brep goes into the move function which translates it upwards by a fixed vector. Unfortunately my meagre brain is struggling to understand what needs to be done in order to get them to each move by the correct vector amount to follow the topography.
The second example i’ve mainly just included to show you the model of the pendants which I am trying to get to follow the topography.
The other thing that I am struggling with is using Block instances. I have tried to set up the pendant models as blocks on this file however im not sure if it has worked as with the 121 unit array the file size ended up being < 40mb (as a result i have deleted most of the arrays so that I could upload it to you!)
Your help is greatly appreciated - Many thanks.
ProjLinesVToSrfMac (1).gh (23.8 KB)
ProjLinesVToSrf (1).3dm (19.1 MB)