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-# ##### BEGIN GPL LICENSE BLOCK #####
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-#
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-#  This program is free software; you can redistribute it and/or
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-#  modify it under the terms of the GNU General Public License
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-#  as published by the Free Software Foundation; either version 2
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-#  of the License, or (at your option) any later version.
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-#
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-#  This program is distributed in the hope that it will be useful,
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-#  but WITHOUT ANY WARRANTY; without even the implied warranty of
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-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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-#  GNU General Public License for more details.
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-#
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-#  You should have received a copy of the GNU General Public License
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-#  along with this program; if not, write to the Free Software Foundation,
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-#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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-#
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-# ##### END GPL LICENSE BLOCK #####
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-
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-import numpy as np
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-try:
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-    from numba import jit
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-    print("Tissue: Numba module loaded succesfully")
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-    @jit
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-    def numba_reaction_diffusion(n_verts, n_edges, edge_verts, a, b, diff_a, diff_b, f, k, dt, time_steps):
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-        arr = np.arange(n_edges)*2
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-        id0 = edge_verts[arr]     # first vertex indices for each edge
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-        id1 = edge_verts[arr+1]   # second vertex indices for each edge
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-        for i in range(time_steps):
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-            lap_a = np.zeros(n_verts)
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-            lap_b = np.zeros(n_verts)
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-            lap_a0 =  a[id1] -  a[id0]   # laplacian increment for first vertex of each edge
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-            lap_b0 =  b[id1] -  b[id0]   # laplacian increment for first vertex of each edge
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-
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-            for i, j, la0, lb0 in zip(id0,id1,lap_a0,lap_b0):
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-                lap_a[i] += la0
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-                lap_b[i] += lb0
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-                lap_a[j] -= la0
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-                lap_b[j] -= lb0
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-            ab2 = a*b**2
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-            #a += eval("(diff_a*lap_a - ab2 + f*(1-a))*dt")
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-            #b += eval("(diff_b*lap_b + ab2 - (k+f)*b)*dt")
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-            a += (diff_a*lap_a - ab2 + f*(1-a))*dt
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-            b += (diff_b*lap_b + ab2 - (k+f)*b)*dt
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-        return a, b
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-
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-    @jit
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-    def numba_lerp2(v00, v10, v01, v11, vx, vy):
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-        co0 = v00 + (v10 - v00) * vx
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-        co1 = v01 + (v11 - v01) * vx
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-        co2 = co0 + (co1 - co0) * vy
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-        return co2
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-except:
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-    print("Tissue: Numba not installed")
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-    pass