Trame + Pyvista: add_point_labels doesn't work at all in "client" rendering mode. #6674
Description
Describe the bug, what's wrong, and what you expected.
From the documentation: https://docs.pyvista.org/examples/02-plot/labels.html
The code below should render a cloud of labels + their points. However, when you run it, it renders the points but does not show the labels. The behavior is different when we use mode='server' it functions as-expected -- showing the labels.
Therefore, there the issue must be due to a difference in the rendering pipeline for mode='client' and mode='server'..
Steps to reproduce the bug.
from __future__ import annotations
import numpy as np
import pyvista as pv
from pyvista.trame.ui import plotter_ui
from trame.app import get_server
from trame_vuetify.ui.vuetify3 import SinglePageLayout
pv.OFF_SCREEN = True
server = get_server(client_type="vue3")
state, ctrl = server.state, server.controller
# Make some random points. Seed the rng for reproducibility.
rng = np.random.default_rng(seed=0)
poly = pv.PolyData(rng.random((10, 3)))
poly["My Labels"] = [f"Label {i}" for i in range(poly.n_points)]
plotter = pv.Plotter()
plotter.add_point_labels(poly, "My Labels", point_size=20, font_size=36)
with SinglePageLayout(server) as layout:
with layout.content as body:
view = plotter_ui(plotter, mode='client')
ctrl.view_update = view.update
ctrl.view_update_image = view.update_image
ctrl.reset_camera = view.reset_camera
if __name__ == "__main__":
server.start()System Information
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Date: Mon Sep 23 14:14:53 2024 AWST
OS : Linux (Ubuntu 23.10)
CPU(s) : 8
Machine : x86_64
Architecture : 64bit
Environment : Python
GPU Vendor : Intel
GPU Renderer : Mesa Intel(R) UHD Graphics (CML GT2)
GPU Version : 4.6 (Core Profile) Mesa 23.2.1-1ubuntu3.1
MathText Support : True
Python 3.11.6 (main, Apr 10 2024, 17:26:07) [GCC 13.2.0]
pyvista : 0.44.1
vtk : 9.3.1
numpy : 2.1.1
matplotlib : 3.9.2
scooby : 0.10.0
pooch : 1.8.2
pillow : 10.4.0
trame : 3.6.5
trame_client : 3.2.5
trame_server : 3.2.0
trame_vtk : 2.8.10
trame_vuetify : 2.7.1
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