I would like to create a preview of wave propagation from a tower. Nothing fancy and definitely no analysis. I just want to “spread” a cone from the top of the tower and have objects (buildings) block the propagation to show the “blind spots”. Unfortunately, I don’t know which function can do it. I tried to look for some wave propagation tutorials but all I can find are architectural tutorials about wave roofs or walls. I also thought about placing the sun on the top of the tower and using the shadow as a pointer, but I think there may be a better solution.
Set a camera to look down the wave cone surface (named view in my file).
Get a Silhouette of the object,
Scale the resulting curves - just the very outer ones actually - from the point of the cone.
Loft the curve(s) back to the point of the cone, or ExtrudeCrvToPoint.
Lots of trimming…
Thank you for your help. Is it possible to automate that process? I was thinking about finding multiple “blind spots” with one antenna and many buildings around.
Hi,
Here’s an attempt with Grasshopper mostly. Ladybug might have a component for this but I haven’t used it in a while and forgot where it is. But if you download it and spend a day on you tube you’ll pick it up fast.
I tried with isovist in GH and it seems ok. It solved intersections from a point which matched the shadow outline pretty well. The black lines were drawn with extend from tip of cone to object intersection point, then I used extend to the floor plane and these points lined up as well. Nice thing about isovist is it lists some things like obstacles hit and distance from cone etc. I didn’t finish up making the solids ala Pascals example don’t really know if this will help but was an interesting problem.
RM
Thank you both of you @pascal and @3dsynergy.
I will test your solutions, probably combine them and I will come back if I have something worth sharing.
