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# ----------------------------------------------------------------------------
# - Open3D: www.open3d.org -
# ----------------------------------------------------------------------------
# The MIT License (MIT)
#
# Copyright (c) 2018-2021 www.open3d.org
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
# ----------------------------------------------------------------------------
import open3d as o3d
if __name__ == "__main__":
bunny = o3d.data.BunnyMesh()
mesh_in = o3d.io.read_triangle_mesh(bunny.path)
mesh_in.compute_vertex_normals()
print("Before Simplification: ", mesh_in)
o3d.visualization.draw_geometries([mesh_in])
mesh_smp = mesh_in.simplify_quadric_decimation(
target_number_of_triangles=6500)
print("After Simplification target number of triangles = 6500:\n", mesh_smp)
o3d.visualization.draw_geometries([mesh_smp])
mesh_smp = mesh_in.simplify_quadric_decimation(
target_number_of_triangles=1700)
print("After Simplification target number of triangles = 1700:\n", mesh_smp)
o3d.visualization.draw_geometries([mesh_smp])
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