Ray3d examples?

[ivelin.peychev]

Hi,

Are there any examples and/or workflows regarding creating rays and getting information about the hit object(s) or the coordinates of the hit(s)?

Thanks in advance.

[piac (Giulio Piacentino)]

This discussion

RayShoot, MeshRay

You can do it this way: __author__ = "b.chipara" __version__ = "2019.10.30" import rhinoscriptsyntax as rs import Rhino import scriptcontext as sc from System.Collections.Generic import List ray = Rhino.Geometry.Ray3d(rayStart, rayVec) newlist = List[Rhino.Geometry.GeometryBase]() for g in geometries: newlist.Add(g) a = Rhino.Geometry.Intersect.Intersection.RayShoot(ray,newlist,maxReflections) [image] rays.gh (11.2 KB)

should get you started.

[ivelin.peychev]

Thanks I think I figured it out:

def SHMUP(ray_gun=None, target=None):
    if ray_gun is None or target is None: return
    centroid = get_centroid(ray_gun)
    vector = Rhino.Geometry.Vector3d.ZAxis
    ray = Rhino.Geometry.Ray3d(centroid, vector)
    hits = Rhino.Geometry.Intersect.Intersection.RayShoot(ray,[target], 1)
    dist = centroid.DistanceTo(hits[0])
    
    return dist

[ivelin.peychev]

Hey, the ray can “bounce” that’s cool.