python open3d点云colorbar
时间: 2023-06-22 07:20:23 浏览: 458
要在Open3D中添加点云的颜色栏,可以使用`create_mesh_coordinate_frame()`函数创建一个坐标系,然后使用`create_mesh_sphere()`函数创建一个球体,将球体的颜色映射为所需的颜色,并将其放置于坐标系上。然后,将坐标系和球体添加到点云中即可。
以下是一个示例代码段,其中点云颜色栏为渐变的红色到蓝色:
``` python
import open3d as o3d
import numpy as np
# 创建点云
pcd = o3d.geometry.PointCloud()
points = np.random.rand(1000, 3)
pcd.points = o3d.utility.Vector3dVector(points)
# 创建颜色栏
mesh_frame = o3d.geometry.TriangleMesh.create_coordinate_frame(size=0.3, origin=[0,0,0])
mesh_sphere = o3d.geometry.TriangleMesh.create_sphere(radius=0.1)
mesh_sphere.compute_vertex_normals()
colors = [[1,0,0], [0,0,1]]
colormap = o3d.visualization.ColorMapJet()
colors_mapped = colormap.map(np.linspace(0,1,mesh_sphere.vertices.shape[0]))[:,:-1]
colors_mapped = np.flip(colors_mapped, axis=0)
mesh_sphere.vertex_colors = o3d.utility.Vector3dVector(colors_mapped)
mesh_sphere.translate([0,0.5,0])
mesh_frame += mesh_sphere
# 将颜色栏添加到点云中
pcd += mesh_frame
# 可视化
o3d.visualization.draw_geometries([pcd])
```
运行代码后,应该看到一个带有颜色栏的点云,颜色栏从红色到蓝色渐变。
阅读全文