mcot.surface.track¶
Run deterministic tractography along the surface.
Functions
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Extract ridge values from to_extract |
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Redefine the orientations from 3D cartesian space to surface space. |
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Takes a step across the given triangle to new position. |
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Keep tracking until a ridge is found in the gradient. |
extract_ridge_values¶
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mcot.surface.track.extract_ridge_values(surface: mcot.surface.mesh.Mesh2D, orientations, to_extract)[source]¶ Extract ridge values from to_extract
- Parameters
surface – Mesh surface
orientations – (N, 3) array of orientations in 3D space (N = number of faces)
to_extract – (M, ) array of values to extract (M = number of vertices)
- Returns
(M, ) array of extracted values
flatten_gradient¶
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mcot.surface.track.flatten_gradient(surface: mcot.surface.mesh.Mesh2D, orientations)[source]¶ Redefine the orientations from 3D cartesian space to surface space.
- Parameters
surface – Mesh surface
orientations – (N, 3) array of orientations in 3D space (N = number of faces)
- Returns
(N, 2) orientations on triangular surface (N = number of faces)
surface_step¶
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mcot.surface.track.surface_step(idx_triangle, pos1, pos2, triangles, directions)[source]¶ Takes a step across the given triangle to new position.
Location is defined by two vertices and the rel_pos between them
- Parameters
idx_triangle – first vertex of current location
pos1 – position along first triangle axis
pos2 – position along second triangle axis
triangles – (M, 3) array of triangles indices
directions – (M, 2) array of gradients on the triangle surface
- Returns
new triangle and relative position (int, float, float)
track_to_maximum¶
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mcot.surface.track.track_to_maximum(idx_triangle, pos1, pos2, triangles, directions)[source]¶ Keep tracking until a ridge is found in the gradient.
- Parameters
idx_triangle – first vertex of current location
pos1 – position along first triangle axis
pos2 – position along second triangle axis
triangles – (M, 3) array of triangles indices
directions – (M, 2) array of gradients on the triangle surface
- Returns
new triangle and relative position (int, float, float)