How can one set the line thickness of geometry.OrientedBoundingBox?

[gc625]

Checklist

• I have searched for similar issues.
• For Python issues, I have tested with the latest development wheel.
• I have checked the release documentation and the latest documentation (for master branch).

My Question

I'm using open3d to visualize bounding box predictions of an point-based object detection model. The issue is that I have no matter what I try, seems like I cannot change the line thickness of the boxes I draw with geometry.OrientedBoundingBox. Attempting to directly modify the LineSet attribute yields the error

AttributeError: 'open3d.cpu.pybind.geometry.OrientedBoundingBox' object attribute 'LineSet' is read-only

trying to change the line width property of the render options via

    opt = vis.get_render_option()
    opt.line_width = 5

also does not work. So how can I adjust the line width of bounding box objects?

[ZoangX]

Recently, I met the same problem as you. Have you solved it? @gc625

[saurabheights]

@ZoangX See https://stackoverflow.com/a/77055132/1874627. Install open3d from http://www.open3d.org/docs/latest/getting_started.html#development-version-pip to make it work.

@benjaminum This issue should be closed. The related bug has been fixed in #6116.

[Mingrui-Yu]

Hi, I met the same problem. But when I try to download the latest open3d from http://www.open3d.org/docs/latest/getting_started.html#development-version-pip ,
it reports:
No such object: open3d-releases/python-wheels/open3d-0.18.0+0cf605f-cp38-cp38-manylinux_2_27_x86_64.whl.

When I try to install by pip, it reports:
ERROR: HTTP error 404 while getting https://storage.googleapis.com/open3d-releases/python-wheels/open3d-0.18.0%2B0cf605f-cp38-cp38-manylinux_2_27_x86_64.whl (from https://www.open3d.org/docs/latest/getting_started.html) ERROR: Could not install requirement open3d from https://storage.googleapis.com/open3d-releases/python-wheels/open3d-0.18.0%2B0cf605f-cp38-cp38-manylinux_2_27_x86_64.whl because of HTTP error 404 Client Error: Not Found for url: https://storage.googleapis.com/open3d-releases/python-wheels/open3d-0.18.0%2B0cf605f-cp38-cp38-manylinux_2_27_x86_64.whl for URL https://storage.googleapis.com/open3d-releases/python-wheels/open3d-0.18.0%2B0cf605f-cp38-cp38-manylinux_2_27_x86_64.whl (from https://www.open3d.org/docs/latest/getting_started.html)

[YuYuCodeNoob]

Use the O3DVisualizer

import numpy as np
import open3d as o3d
import open3d.visualization.gui as gui
print("Let's draw a box using o3d.geometry.LineSet.")
points = [
[0, 0, 0],
[1, 0, 0],
[0, 1, 0],
[1, 1, 0],
[0, 0, 1],
[1, 0, 1],
[0, 1, 1],
[1, 1, 1],
]
lines = [
[0, 1],
[0, 2],
[1, 3],
[2, 3],
[4, 5],
[4, 6],
[5, 7],
[6, 7],
[0, 4],
[1, 5],
[2, 6],
[3, 7],
]
colors = [[1, 0, 0] for i in range(len(lines))]
line_set = o3d.geometry.LineSet(
points=o3d.utility.Vector3dVector(points),
lines=o3d.utility.Vector2iVector(lines),
)
line_set.colors = o3d.utility.Vector3dVector(colors)
point_cloud2 = o3d.geometry.PointCloud()
point_cloud2.points = o3d.utility.Vector3dVector(points)
point_cloud2.paint_uniform_color([0, 1, 0])
geometries = [line_set, point_cloud2]
gui.Application.instance.initialize()
vis = o3d.visualization.O3DVisualizer("03DVisualizer",1920,1080)
vis.line_width = 5 # set line width
# set the background color
bg_color = np.array([0.0, 0.0, 0.0, 1.0], dtype=np.float32)
vis.set_background(bg_color=bg_color, bg_image = None)
for i,geom in enumerate(geometries):
    vis.add_geometry(f"geom{i}",geom)
vis.show_skybox(False)
gui.Application.instance.add_window(vis)
gui.Application.instance.run()
vis.destroy()