"""
3D surface geometric entity for UPXO.
Usage
-----
from upxo.geoEntities.surface import Surface
Classes
-------
Surface : 3D surface representation with meshing and smoothing operations.
Limitations
-----------
- All methods are stubs awaiting implementation.
"""
[docs]
class Surface():
"""
Represents a 3D surface in UPXO.
Attributes
----------
x : array-like
X-coordinates of surface points.
y : array-like
Y-coordinates of surface points.
z : array-like
Z-coordinates of surface points.
Limitations
-----------
- All methods are stubs awaiting implementation.
"""
__slots__ = ('x', 'y', 'z')
def __init__(self):
"""
Initialise an empty surface.
Raises
------
NotImplementedError
Always raised because surface initialisation is not implemented.
"""
raise NotImplementedError("__init__ is not yet implemented.")
def __repr__(self):
"""
Return a developer-readable surface representation.
Returns
-------
str
Static representation string ``"UPXO surface."``.
"""
return "UPXO surface."
[docs]
@classmethod
def from_points(self):
"""
Construct a surface from a collection of 3D points.
Raises
------
NotImplementedError
Always raised because point-based construction is not implemented.
"""
raise NotImplementedError("from_points is not yet implemented.")
[docs]
@classmethod
def from_vertices(self):
"""
Construct a surface from a vertex array.
Raises
------
NotImplementedError
Always raised because vertex-based construction is not implemented.
"""
raise NotImplementedError("from_vertices is not yet implemented.")
[docs]
def compute_normals(self):
"""
Compute surface normals at each vertex.
Raises
------
NotImplementedError
Always raised because normal computation is not implemented.
"""
raise NotImplementedError("compute_normals is not yet implemented.")
[docs]
def shortest_path(self, point):
"""
Find the shortest geodesic path from a reference point on the surface.
Parameters
----------
point : array-like
Query point coordinates.
Raises
------
NotImplementedError
Always raised because geodesic path finding is not implemented.
"""
raise NotImplementedError("shortest_path is not yet implemented.")
[docs]
def triangulate(self, point):
"""
Triangulate the surface from the given reference point.
Parameters
----------
point : array-like
Reference point for triangulation.
Raises
------
NotImplementedError
Always raised because triangulation is not implemented.
"""
raise NotImplementedError("triangulate is not yet implemented.")
[docs]
def distribute_points(self, n, min_distance=-1):
"""
Distribute ``n`` points on the surface with optional minimum separation.
Parameters
----------
n : int
Number of points to distribute.
min_distance : float, optional
Minimum distance between points. Default is -1 (no constraint).
Raises
------
NotImplementedError
Always raised because point distribution is not implemented.
"""
raise NotImplementedError("distribute_points is not yet implemented.")
[docs]
def pyvista_mesh(self):
"""
Return a PyVista mesh representation of this surface.
Raises
------
NotImplementedError
Always raised because PyVista mesh construction is not implemented.
"""
raise NotImplementedError("pyvista_mesh is not yet implemented.")
[docs]
def smooth_laplace(self, niterations):
"""
Apply Laplacian smoothing to the surface.
Parameters
----------
niterations : int
Number of smoothing iterations.
Raises
------
NotImplementedError
Always raised because Laplacian smoothing is not implemented.
"""
raise NotImplementedError("smooth_laplace is not yet implemented.")
[docs]
def smooth_taubin(self, niterations):
"""
Apply Taubin smoothing to the surface.
Parameters
----------
niterations : int
Number of smoothing iterations.
Raises
------
NotImplementedError
Always raised because Taubin smoothing is not implemented.
"""
raise NotImplementedError("smooth_taubin is not yet implemented.")