I am running a daylight assessment using Rhino and grasshopper pollination plug in.
When creating the sensor grid with no distshrink, the results (contours and values) make sense (first image). However, when i apply any offset from the walls using distshrink, the results show zero, and the contours don’t make much sense (second image).
I have flicked between the two grid settings a few times to make sure i haven’t changed anything else. I get the same results every time.
Does anyone have any ideas what i might be doing wrong?
@dfox, can you check if the sensors are pointing down for grid in the second image. Double click the grid > Data and check “dir” for one of the sensors.
This should not happen when you create a grid from a room, but I can recreate this regardless of the ShrinkDist setting.
Yes, this seems to be the problem, the direction when using “ShrinkDist” is 0,0,-1. I have looked at the direction when “ShrinkDist” = 0, and the mesh is the correct distance. It seems whenever I change this it switches.
Please could you advise how to fix this. I have tried flipping the object and defining a grid direction when creating the sensor grid, see below. But still, when i look at the data for the sensor grid, the direction is always 0,0,-1.
