impossible to assign normals to points

[mariolino007]

with this code it is not possible to assign values to the normals in the cloud and then update the database

import numpy as np import pycc cc = pycc.GetInstance() x = np.random.rand(1000) y = np.random.rand(1000) z = np.random.rand(1000) pc = pycc.ccPointCloud(x, y, z) normals = np.random.rand(1000, 3) normals_magnitude = np.linalg.norm(normals, axis=1, keepdims=True) normals /= normals_magnitude pc.reserveNormals(1000) pc.addNormal(normals) pc.setName("new") cc.addToDB(pc, autoExpandDBTree=False) cc.updateUI()

many thanks

[tmontaigu]

Thats expected, you are trying to call functions which do not exists, I'll add the functions wich could allow you to do that

[tmontaigu]

Finally found time to add it in https://github.com/tmontaigu/CloudCompare-PythonPlugin/pull/85

To use, in your example add

pc = pycc.ccPointCloud(x, y, z)

normals = np.random.rand(1000, 3)
normals_magnitude = np.linalg.norm(normals, axis=1, keepdims=True)
normals /= normals_magnitude
pc.reserveTheNormsTable()
pc.addNormals(normals[:, 0], normals[:, 1], normals[:, 2])

Do you compile the plugin yourself or use the prodived installer .

[mariolino007]

I have installed a recent version of cloudcompare 'latest beta release: 2.13.beta (7 Jan 2024)' from www.cloudcompare.org but the addNormals function is still not working for me. I have also tried the exe https://u.pcloud.link/publink/show?code=XZW75aVZYzubajT4VVJJ0mfn9rCsBRRxEBTk but I cannot get cloudcompare to see it. Unfortunately I don't have the skills to compile from your source code myself. Can you maybe do an update of the package within the next downloadable release from www.cloudcompare.org ? thank you very much

[tmontaigu]

Yes i will generate a newer installer and ping you when its done

[tmontaigu]

The latest installer is update (same link in readme)

[mariolino007]

many thanks for your help, but unfortunately I cannot install your program in any way even after your new compilation: CloudCompare-PythonPlugin-Setup-English-Python9-Venv.msi

I installed CC with date "Jan 18 2024" without the package of your plugin included in CC, I installed afterwards your exe in the folder "C:\Program Files\CloudCompare\plugins" but CC at startup does not recognise the plugin.

I uninstalled everything

I installed your plugin first in the folder "C:\Program Files\CloudCompare\plugins", I installed CC with date "Jan 18 2024" without your plugin package included at startup but CC at startup does not recognize the plugin.

I uninstalled everything

i installed your plugin first in the folder "C:\Program Files\CloudCompare\plugins" i copied all the unzipped files to another folder

I uninstalled everything

i installed CC with the date "Jan 18 2024" with your plugin package included, i overwritten the old files with the new unzipped ones i had kept in another folder but CC at startup does not recognize the plugin.

I don't know what else to try ...... From a comparison I noticed that your new plugin has 6867 files 539 folders and about 161 MB, while the one included in CC has 17686 files 1619 folders and about 546 MB in the CC version there are many libraries included.

Thank you Mariolino

[tmontaigu]

Ah I see, I recently changed the name of the plugin, I probably forgot some things which broke the installer

I'll fix that

[tmontaigu]

Ok so the installer is updated, and should properly work now

[mariolino007]

Hi Thomas, now it works fine, I managed to install the new version even now I see two environments, I must try to install CC without the included plugin !!! Now the function to assign normals works fine! Many thanks Mariolino