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# ----------------------------------------------------------------------------
# - Open3D: www.open3d.org -
# ----------------------------------------------------------------------------
# Copyright (c) 2018-2024 www.open3d.org
# SPDX-License-Identifier: MIT
# ----------------------------------------------------------------------------
import open3d as o3d
import random
NUM_LINES = 10
def random_point():
return [5 * random.random(), 5 * random.random(), 5 * random.random()]
def main():
pts = [random_point() for _ in range(0, 2 * NUM_LINES)]
line_indices = [[2 * i, 2 * i + 1] for i in range(0, NUM_LINES)]
colors = [[0.0, 0.0, 0.0] for _ in range(0, NUM_LINES)]
lines = o3d.geometry.LineSet()
lines.points = o3d.utility.Vector3dVector(pts)
lines.lines = o3d.utility.Vector2iVector(line_indices)
# The default color of the lines is white, which will be invisible on the
# default white background. So we either need to set the color of the lines
# or the base_color of the material.
lines.colors = o3d.utility.Vector3dVector(colors)
# Some platforms do not require OpenGL implementations to support wide lines,
# so the renderer requires a custom shader to implement this: "unlitLine".
# The line_width field is only used by this shader; all other shaders ignore
# it.
mat = o3d.visualization.rendering.MaterialRecord()
mat.shader = "unlitLine"
mat.line_width = 10 # note that this is scaled with respect to pixels,
# so will give different results depending on the
# scaling values of your system
o3d.visualization.draw({
"name": "lines",
"geometry": lines,
"material": mat
})
if __name__ == "__main__":
main()
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