"""Log some very simple points."""

import rerun as rr

rr.init("rerun_example_points3d", spawn=True)

rr.log("points", rr.Points3D([[0, 0, 0], [1, 1, 1]]))

"""Log some random points with color and radii."""

import rerun as rr
from numpy.random import default_rng

rr.init("rerun_example_points3d_random", spawn=True)
rng = default_rng(12345)

positions = rng.uniform(-5, 5, size=[10, 3])
colors = rng.uniform(0, 255, size=[10, 3])
radii = rng.uniform(0, 1, size=[10])

rr.log("random", rr.Points3D(positions, colors=colors, radii=radii))

"""Log some points with ui points & scene unit radii."""

import rerun as rr

rr.init("rerun_example_points3d_ui_radius", spawn=True)

# Two blue points with scene unit radii of 0.1 and 0.3.
rr.log(
    "scene_units",
    rr.Points3D(
        [[0, 1, 0], [1, 1, 1]],
        # By default, radii are interpreted as world-space units.
        radii=[0.1, 0.3],
        colors=[0, 0, 255],
    ),
)

# Two red points with ui point radii of 40 and 60.
# UI points are independent of zooming in Views, but are sensitive to the application UI scaling.
# For 100% ui scaling, UI points are equal to pixels.
rr.log(
    "ui_points",
    rr.Points3D(
        [[0, 0, 0], [1, 0, 1]],
        # rr.Radius.ui_points produces radii that the viewer interprets as given in ui points.
        radii=rr.Radius.ui_points([40.0, 60.0]),
        colors=[255, 0, 0],
    ),
)

"""
Update a point cloud over time.

See also the `points3d_column_updates` example, which achieves the same thing in a single operation.
"""

import numpy as np
import rerun as rr

rr.init("rerun_example_points3d_row_updates", spawn=True)

# Prepare a point cloud that evolves over 5 timesteps, changing the number of points in the process.
times = np.arange(10, 15, 1.0)
# fmt: off
positions = [
    [[1.0, 0.0, 1.0], [0.5, 0.5, 2.0]],
    [[1.5, -0.5, 1.5], [1.0, 1.0, 2.5], [-0.5, 1.5, 1.0], [-1.5, 0.0, 2.0]],
    [[2.0, 0.0, 2.0], [1.5, -1.5, 3.0], [0.0, -2.0, 2.5], [1.0, -1.0, 3.5]],
    [[-2.0, 0.0, 2.0], [-1.5, 1.5, 3.0], [-1.0, 1.0, 3.5]],
    [[1.0, -1.0, 1.0], [2.0, -2.0, 2.0], [3.0, -1.0, 3.0], [2.0, 0.0, 4.0]],
]
# fmt: on

# At each timestep, all points in the cloud share the same but changing color and radius.
colors = [0xFF0000FF, 0x00FF00FF, 0x0000FFFF, 0xFFFF00FF, 0x00FFFFFF]
radii = [0.05, 0.01, 0.2, 0.1, 0.3]

for i in range(5):
    rr.set_time("time", duration=10 + i)
    rr.log("points", rr.Points3D(positions[i], colors=colors[i], radii=radii[i]))

"""
Update a point cloud over time, in a single operation.

This is semantically equivalent to the `points3d_row_updates` example, albeit much faster.
"""

from __future__ import annotations

import numpy as np
import rerun as rr

rr.init("rerun_example_points3d_column_updates", spawn=True)

# Prepare a point cloud that evolves over 5 timesteps, changing the number of points in the process.
times = np.arange(10, 15, 1.0)
# fmt: off
positions = [
    [1.0, 0.0, 1.0], [0.5, 0.5, 2.0],
    [1.5, -0.5, 1.5], [1.0, 1.0, 2.5], [-0.5, 1.5, 1.0], [-1.5, 0.0, 2.0],
    [2.0, 0.0, 2.0], [1.5, -1.5, 3.0], [0.0, -2.0, 2.5], [1.0, -1.0, 3.5],
    [-2.0, 0.0, 2.0], [-1.5, 1.5, 3.0], [-1.0, 1.0, 3.5],
    [1.0, -1.0, 1.0], [2.0, -2.0, 2.0], [3.0, -1.0, 3.0], [2.0, 0.0, 4.0],
]
# fmt: on

# At each timestep, all points in the cloud share the same but changing color and radius.
colors = [0xFF0000FF, 0x00FF00FF, 0x0000FFFF, 0xFFFF00FF, 0x00FFFFFF]
radii = [0.05, 0.01, 0.2, 0.1, 0.3]

rr.send_columns(
    "points",
    indexes=[rr.TimeColumn("time", duration=times)],
    columns=[
        *rr.Points3D.columns(positions=positions).partition(lengths=[2, 4, 4, 3, 4]),
        *rr.Points3D.columns(colors=colors, radii=radii),
    ],
)

"""Update specific properties of a point cloud over time."""

import rerun as rr

rr.init("rerun_example_points3d_partial_updates", spawn=True)

positions = [[i, 0, 0] for i in range(10)]

rr.set_time("frame", sequence=0)
rr.log("points", rr.Points3D(positions))

for i in range(10):
    colors = [[20, 200, 20] if n < i else [200, 20, 20] for n in range(10)]
    radii = [0.6 if n < i else 0.2 for n in range(10)]

    # Update only the colors and radii, leaving everything else as-is.
    rr.set_time("frame", sequence=i)
    rr.log("points", rr.Points3D.from_fields(radii=radii, colors=colors))

# Update the positions and radii, and clear everything else in the process.
rr.set_time("frame", sequence=20)
rr.log("points", rr.Points3D.from_fields(clear_unset=True, positions=positions, radii=0.3))