Code of RFEPS.

Abs: Feature lines are important geometric cues in characterizing the structure of a CAD model. Despite great progress in both explicit reconstruction and implicit reconstruction, it remains a challenging task to reconstruct a polygonal surface equipped with feature lines, especially when the input point cloud is noisy and lacks faithful normal vectors. In this paper, we develop a multistage algorithm, named RFEPS, to address this challenge. The key steps include (1)denoising the point cloud based on the assumption of local planarity, (2)identifying the feature-line zone by optimization of discrete optimal transport, (3)augmenting the point set so that sufficiently many additional points are generated on potential geometry edges, and (4) generating a polygonal surface that interpolates the augmented point set based on restricted power diagram. We demonstrate through extensive experiments that RFEPS, benefiting from the edge-point augmentation and the feature-preserving explicit reconstruction, outperforms state-of-the-art methods in terms of the reconstruction quality, especially in terms of the ability to reconstruct missing feature lines.

Paper link: https://arxiv.org/abs/2212.03600 Doi: https://dl.acm.org/doi/10.1145/3550454.3555443

• CGAL
• Eigen3
• Boost

• .\vcpkg install boost:x64-windows

• .\vcpkg install cgal:x64-windows

  ​ use "git pull" if you get errors with the "gmp" library.

• .\vcpkg install Eigen3:x64-windows

• .\vcpkg integrate install

git clone https://github.com/Xrvitd/RFEPS
cd RFEPS
mkdir build && cd build
cmake ..
make -j8
make install

If you are using Mac, please check this: #3

git clone https://github.com/Xrvitd/RFEPS

Open cmake-gui

Where is the source code: RFEPS

Where to build the binaries: RFEPS/build

note: check the location of dependencies and install. It is recommended to use vcpkg to add dependencies.

Configure->Generate->Open Project

ALL_BUILD -> Build Turn Debug to Release -> ALL_BUILD -> Build

Please set MAIN as Startup Project, and make the following changes:

Properties -> Configuration Properties -> C/C++ -> Code Generation ->

• Enable Parallel Code Generation : Yes
• Enable Enhanced Instruction Set : AVX2
• Floating Point Model : Fast

Properties -> Configuration Properties -> C/C++ -> Language -> Open MP Support : Yes

The example is in 'MAIN'. Include RFEPS in your project when testing and using it.

All the files is in 'RFEPS\data'.

Please open OPENMP in Visual Studio to get the best performance.

The Restricted Power Diagram(RPD) in this project is a version that we implemented to facilitate debugging. If you want to get the fastest running speed, please use: https://github.com/basselin7u/GPU-Restricted-Power-Diagrams

• Windows 10
• Visual Studio 2022
• AMD Ryzen 5950X
• 64GB Memory

Thanks for BGAL library: https://github.com/BKHao/BGAL

If you use our code, please consider citing our work:

@article{Rui2022RFEPS,
  author    = {Xu, Rui and Wang, Zixiong and Dou, Zhiyang and Zong, Chen and Xin, Shiqing and Jiang, Mingyan and Ju, Tao and Tu, Changhe},
  title     = {RFEPS: Reconstructing Feature-line Equipped Polygonal Surface},
  journal   = {ACM Transactions on Graphics (TOG)},
  year      = {2022},
  publisher = {ACM},
  doi = {10.1145/3550454.3555443},
  booktitle = {ACM SIGGRAPH Asia 2022 Papers},
  numpages = {15},
  series = {SIGGRAPH Asia '22}
}