Datasets:
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README.md
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g{genus}\_{knot_type}\_{n_x},{n_y},{n_z}\_{φ_x},{φ_y},{φ_z}\_{f}\_{c}\_{a}\_r{r_min}\_{r_max}\_v{resolution}.stl
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**
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g7_lissajous_3,5,8,0,pi2,0_03_1.1_0.2_r0.02_0.029_v90.stl
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- **`3,5,8`**: Frequencies (`n_x`, `n_y`, `n_z`) used in the parametric equations of the curve, corresponding to the x, y, and z coordinates.
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- **`0,pi2,0`**: Phase shifts (`φ_x`, `φ_y`, `φ_z`) in each coordinate. Notation like `pi2` represents multiples of π (e.g., `pi2` = π/2, `pi3` = π/3, etc.).
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- **`03_1.1_0.2`**: Parameters of the cosine-based radius modulation for the tubular neighborhood around the curve:
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- `03`: frequency `f`
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- `1.1`: constant term `c`
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- `0.2`: amplitude `a`
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Thus, the radius function is:
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r(t) = 1.1 + 0.2cos(3t)
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Other file variants use suffixes to indicate their content:
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# Acknowledgements
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- The authors thank DGTIC-UNAM for access to the Miztli HPC resources, grant LANCAD-UNAM-DGTIC-430.
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- RF thanks CONAHCyT for a graduate fellowship.
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- This work was supported by Universidad Nacional Autónoma de México Postdoctoral Program (POSDOC) for author EIVR, who also acknowledges the postdoctoral fellowship received during the production of this work.
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- VM acknowledges the support from project PAPIIT TA100924 "Investigación de sesgos inductivos en aprendizaje profundo y sus aplicaciones"
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g{genus}\_{knot_type}\_{n_x},{n_y},{n_z}\_{φ_x},{φ_y},{φ_z}\_{f}\_{c}\_{a}\_r{r_min}\_{r_max}\_v{resolution}.stl
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Each component encodes geometric or topological information.
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**For example:**
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g7_lissajous_3,5,8,0,pi2,0_03_1.1_0.2_r0.02_0.029_v90.stl
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- `g7`: Topological genus of the surface. In this example, the genus is 7 (i.e., the surface has 7 holes).
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- `lissajous` or `fibonacci`: Knot type. Most elements were generated from *Lissajous* (singular) knots, but just a couple from *Fibonacci* knots.
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- `3,5,8`: The frequencies `n_x`, `n_y`, `n_z` used in the parametric equations of the curve, corresponding to the x, y, and z coordinates.
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- `0,pi2,0`: The phase shifts `φ_x`, `φ_y`, `φ_z` in each coordinate. Notation like `pi2` represents fractions of π (e.g., `pi2` = π/2, `pi3` = π/3, etc.).
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- `03_1.1_0.2`: Parameters of the (cosine-based) sinusoidal radius variation for the tubular neighborhood around the curve:
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- `03`: frequency `f`
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- `1.1`: constant term `c`
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- `0.2`: amplitude `a`
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Thus, the radius function is:
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$r(t) = 1.1 + 0.2cos(3t)$
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- `r0.02_0.029`: Minimum and maximum radius of the tubular neighborhood.
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- `v90`: Voxel resolution per axis. While v90 nominally refers to a 90 × 90 × 90 voxel grid, an offset of 5 voxels per side was added to prevent surface clipping at the bounding box edges.
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As a result, the actual scalar field is discretized into 101 × 101 × 101 = 1,030,301 grid points, yielding 1,000,000 voxels in total.
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- `.stl`: File extension. This denotes the *smoothed* version of the surface mesh.
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Other file variants use suffixes to indicate their content:
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- `_ns.stl`: The non-smoothed surface mesh, output directly from the Marching Cubes algorithm (raw geometry).
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- `_sf.txt`: The scalar field used to generate the surface.
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- `_bup.txt`: The blow-up profile (e.g., radius function samples or analytical envelope).
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# Acknowledgements
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- The authors thank DGTIC-UNAM for access to the Miztli HPC resources, grant LANCAD-UNAM-DGTIC-430.
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- RF thanks CONAHCyT for a graduate fellowship.
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- This work was supported by Universidad Nacional Autónoma de México Postdoctoral Program (POSDOC) for author EIVR, who also acknowledges the postdoctoral fellowship received during the production of this work.
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- VM acknowledges the support from project PAPIIT TA100924 "Investigación de sesgos inductivos en aprendizaje profundo y sus aplicaciones."
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