如果我们现在把所有的面拉直成三角形和线段,我们就可以直观地描述S的Alpha shapes。Open3D中 create_from_point_cloud_alpha_shape 函数实现了Alpha shapes点云重建。 2.代码示例 importopen3daso3d# 加载点云pcd=o3d.io.read_point_cloud("chair.pcd")# Alpha shapesalpha=0.1print(f"alpha={alpha:.3f}")me...
open3d中对应的函数为TriangleMesh.create_from_point_cloud_alpha_shape,其关键参数为alpha。alpha是该方法在搜索外轮廓时的半径大小。alpha值越小,网格的细节就越多,分辨率越高。 # 1. Alpha shapes轮廓提取pcd_rc1 = deepcopy(pcd)pcd_rc1.translate([-100, 0, 50])mesh_rc1 = open3d.geometry.TriangleMe...
import open3d as o3d import numpy as np print("->正在加载点云... ") pcd = o3d.io.read_point_cloud("bunny.pcd") print(pcd) print("->正在剔除隐藏点...") diameter = np.linalg.norm(np.asarray(pcd.get_max_bound()) - np.asarray(pcd.get_min_bound())) print("定义隐藏点去除的...
如果我们想从给定的点云中计算多个 alpha 形状,那么我们可以通过只计算凸壳一次并将其传递给 create_from_point_cloud_alpha_shape来节省一些计算。 tetra_mesh,pt_map=o3d.geometry.TetraMesh.create_from_point_cloud(pcd) foralphainnp.logspace(np.log10(0.5),np.log10(0.01),num=4): print(f"alpha={alp...
该实现基于点云的凸壳。如果我们想从给定的点云中计算多个 alpha 形状,那么我们可以通过只计算凸壳一次并将其传递给 create_from_point_cloud_alpha_shape来节省一些计算。 tetra_mesh, pt_map = o3d.geometry.TetraMesh.create_from_point_cloud(pcd)for alpha in np.logspace(np.log10(0.5), np.log10(0.01...
conda create -n open3d python=3.7 activate open3d -i https://pypi.tuna./simple # 安装 pip install open3d # 验证 python -c"import open3d as o3d; print(o3d.__version__)" 测试可视化一个球:test3d.py import open3d as o3d mesh = o3d.geometry.TriangleMesh.create_sphere() ...
如果我们现在把所有的面拉直成三角形和线段,我们就可以直观地描述s的 Alpha shapes Open3D实现了create_from_point_cloud_alpha_shape 方法 import open3d as o3d import numpy as np # --- 加载点云 --- print("->正在加载点云... ") pcd = o3d.io.read_point_cloud("../bunny.pcd") print("原...
最近在学习open3d的相关应用,然后遇到了一个很有趣的问题。给定多个mesh,我们可能会需要把他们全部合并...
I am not able to use the function create_from_point_cloud_alpha_shape due to type errors. Below is a simple code to reproduce, and the error displayed. import open3d as o3d import numpy as np pc = o3d.geometry.PointCloud() pc.points = o3...
`open3d.geometry.TriangleMesh.create_from_point_cloud_alpha_shape(pointcloud, alpha)`: 基于点云创建三角网格。 `open3d.geometry.voxel_grid.create_from_point_cloud(pointcloud, voxel_size)`: 基于点云创建体素网格。 5. 点云配准和拼接: `open3d.pipelines.registration.registration_icp(source, target,...