Nefertiti Bust Revit element

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Out of my curiosity, here is a variant that draws mesh triangles (surfaces) only in Dynamo
nearly 96,000 surfaces to display, my laptop suffered a bit :sweat_smile:

image
image1131×869 135 KB

"""
original author Ramiz Mohareb modify by Cyril Poupin
25.03.2022
enramiz@yahoo.com
"""
import clr
import sys
import re
import System
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

clr.AddReference('Python.Included')
import Python.Included as pyInc
path_py3_lib = pyInc.Installer.EmbeddedPythonHome
sys.path.append(path_py3_lib + r'\Lib\site-packages')
import random
import numpy as np
import numpy as np
import open3d as o3d
import matplotlib.pyplot as plt


def computePoint(a):
    if np.isnan(a[0]):
        return None
    else:
        return Point.ByCoordinates(a[0], a[1], a[2])

def computeTriangleSurface(a, DS_ptarr):
    lstPt = [DS_ptarr[a[i]] for i in range(3)]
    if all(isinstance(x, Point) for x in lstPt):
        try:
            return Surface.ByPerimeterPoints(lstPt)
        except:
            return None
    else:
        return None

filepath=IN[0]

pcd = o3d.io.read_point_cloud(filepath)
distances = pcd.compute_nearest_neighbor_distance()
avg_dist = np.mean(distances)
radius = 1.5 * avg_dist

#computing the mehs
bpa_mesh = o3d.geometry.TriangleMesh.create_from_point_cloud_ball_pivoting(pcd,o3d.utility.DoubleVector([radius, radius*2])) 

#dec_mesh1 = bpa_mesh.filter_smooth_simple(number_of_iterations=1)
dec_mesh1 = bpa_mesh.filter_smooth_taubin(number_of_iterations=10)
#dec_mesh1 = bpa_mesh.simplify_quadric_decimation(100000)

dec_mesh1.remove_degenerate_triangles()
dec_mesh1.remove_duplicated_triangles()
dec_mesh1.remove_duplicated_vertices()
dec_mesh1.remove_non_manifold_edges()

arr_vertices = np.array(dec_mesh1.vertices)
arr_triangles = np.array(dec_mesh1.triangles)
DS_ptarr = np.apply_along_axis(computePoint, 1, arr_vertices)
DS_surface_arr = np.apply_along_axis(computeTriangleSurface, 1, arr_triangles, DS_ptarr)
#
OUT = DS_surface_arr

download and rename nefertiti_HQ2.txt to nefertiti_HQ2.ply
nefertiti_HQ2.txt (6.2 MB)