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Update cached element coordinates on modification #715

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Update cached element coordinates on modification #715

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2878074
Failing test
ecomodeller Aug 16, 2024
325524c
Caching is hard
ecomodeller Aug 16, 2024
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4 changes: 4 additions & 0 deletions mikeio/dfsu/_mesh.py
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Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,10 @@ def node_coordinates(self) -> np.ndarray:
"""Coordinates of nodes"""
return self.geometry.node_coordinates

@node_coordinates.setter
def node_coordinates(self, v: np.ndarray) -> None:
self.geometry.node_coordinates = v

@property
def n_nodes(self) -> int:
"""Number of nodes"""
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21 changes: 15 additions & 6 deletions mikeio/spatial/_FM_geometry.py
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Expand Up @@ -238,7 +238,7 @@ def __init__(
reindex: bool = False,
) -> None:
super().__init__(projection=projection)
self.node_coordinates = np.asarray(node_coordinates)
self._node_coordinates = np.asarray(node_coordinates)

n_nodes = len(node_coordinates)
self._codes = (
Expand Down Expand Up @@ -355,6 +355,20 @@ def n_elements(self) -> int:
"""Number of elements"""
return len(self._element_ids)

@property
def node_coordinates(self) -> np.ndarray:
return self._node_coordinates

@node_coordinates.setter
def node_coordinates(self, v: np.ndarray) -> None:
self._node_coordinates = v
del self.element_coordinates

@cached_property
def element_coordinates(self) -> np.ndarray:
"""Center coordinates of each element"""
return self._calc_element_coordinates()

@property
def element_ids(self) -> np.ndarray:
return self._element_ids
Expand Down Expand Up @@ -505,11 +519,6 @@ def is_tri_only(self) -> bool:
"""Does the mesh consist of triangles only?"""
return self.max_nodes_per_element == 3 or self.max_nodes_per_element == 6

@cached_property
def element_coordinates(self) -> np.ndarray:
"""Center coordinates of each element"""
return self._calc_element_coordinates()

@cached_property
def _tree2d(self) -> cKDTree:
xy = self.element_coordinates[:, :2]
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10 changes: 8 additions & 2 deletions tests/test_mesh.py
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Expand Up @@ -86,10 +86,16 @@ def test_get_bad_node_coordinates(tri_mesh):

def test_set_z(tri_mesh):
msh = tri_mesh
nc = msh.node_coordinates.copy()
assert msh.element_coordinates[:, 2].min() == pytest.approx(-10.938001)
zn = msh.node_coordinates[:, 2]
zn[zn < -3] = -3
nc[zn < -3, 2] = -3

# setting the property, triggers update of element coordinates
msh.node_coordinates = nc

assert msh.element_coordinates[:, 2].min() == pytest.approx(-3)

msh.node_coordinates[:, 2] = zn
zn = msh.node_coordinates[:, 2]
assert zn.min() == -3

Expand Down