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import rerun as rr
import rerun.blueprint as rrb
import numpy as np
import gradio as gr
import urllib
from math import cos, sin
from collections import namedtuple
ColorGrid = namedtuple("ColorGrid", ["positions", "colors"])
def build_color_grid(x_count=10, y_count=10, z_count=10, twist=0):
"""
Create a cube of points with colors.
The total point cloud will have x_count * y_count * z_count points.
Parameters
----------
x_count, y_count, z_count:
Number of points in each dimension.
twist:
Angle to twist from bottom to top of the cube
"""
grid = np.mgrid[
slice(-x_count, x_count, x_count * 1j),
slice(-y_count, y_count, y_count * 1j),
slice(-z_count, z_count, z_count * 1j),
]
angle = np.linspace(-float(twist) / 2, float(twist) / 2, z_count)
for z in range(z_count):
xv, yv, zv = grid[:, :, :, z]
rot_xv = xv * cos(angle[z]) - yv * sin(angle[z])
rot_yv = xv * sin(angle[z]) + yv * cos(angle[z])
grid[:, :, :, z] = [rot_xv, rot_yv, zv]
positions = np.vstack([xyz.ravel() for xyz in grid])
colors = np.vstack(
[
xyz.ravel()
for xyz in np.mgrid[
slice(0, 255, x_count * 1j),
slice(0, 255, y_count * 1j),
slice(0, 255, z_count * 1j),
]
]
)
return ColorGrid(positions.T, colors.T.astype(np.uint8))
def html_template(rrd, width=1319, height=900, app_url="https://app.rerun.io"):
encoded_url = urllib.parse.quote(rrd)
return f"""<iframe width="{width}" height="{height}" src="{app_url}?url={encoded_url}" frameborder="0" allowfullscreen=""></iframe>"""
def show_cube(x, y, z):
rr.init("my data")
cube = build_color_grid(int(x), int(y), int(z), twist=0)
rr.log("cube", rr.Points3D(cube.positions, colors=cube.colors, radii=0.5))
blueprint = rrb.Spatial3DView(origin='cube')
rr.save("cube.rrd", default_blueprint=blueprint)
return "cube.rrd"
with gr.Blocks() as demo:
with gr.Row():
x_count = gr.Slider(minimum=1, maximum=10, value=5, label="X Count")
y_count = gr.Slider(minimum=1, maximum=10, value=5, label="Y Count")
z_count = gr.Slider(minimum=1, maximum=10, value=5, label="Z Count")
button = gr.Button("Show Cube")
with gr.Row():
rrd = gr.File()
with gr.Row():
viewer = gr.HTML()
button.click(show_cube, inputs=[x_count, y_count, z_count], outputs=rrd)
rrd.change(html_template, js="""(rrd) => { console.log(rrd.url); return rrd.url}""", inputs=[rrd], outputs=viewer, preprocess=False)
demo.launch()
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