polishing
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@ -13,43 +13,44 @@ from scipy import spatial
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import damask
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def findClosestSeed(seeds, weights, point):
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return np.argmin(np.sum((np.broadcast_to(point,(len(seeds),3))-seeds)**2,axis=1) - weights)
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scriptName = os.path.splitext(os.path.basename(__file__))[0]
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scriptID = ' '.join([scriptName,damask.version])
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def findClosestSeed(seeds, weights, point):
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return np.argmin(np.sum((np.broadcast_to(point,(len(seeds),3))-seeds)**2,axis=1) - weights)
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def Laguerre_tessellation(grid, seeds, grains, size, periodic, weights, cpus):
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if periodic:
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weights_p = np.tile(weights,27).flatten(order='F') # Laguerre weights (1,2,3,1,2,3,...,1,2,3)
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seeds_p = np.vstack((seeds -np.array([size[0],0.,0.]),seeds, seeds +np.array([size[0],0.,0.])))
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seeds_p = np.vstack((seeds_p-np.array([0.,size[1],0.]),seeds_p,seeds_p+np.array([0.,size[1],0.])))
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seeds_p = np.vstack((seeds_p-np.array([0.,0.,size[2]]),seeds_p,seeds_p+np.array([0.,0.,size[2]])))
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else:
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weights_p = weights.flatten()
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seeds_p = seeds
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if periodic:
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weights_p = np.tile(weights,27).flatten(order='F') # Laguerre weights (1,2,3,1,2,3,...,1,2,3)
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seeds_p = np.vstack((seeds -np.array([size[0],0.,0.]),seeds, seeds +np.array([size[0],0.,0.])))
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seeds_p = np.vstack((seeds_p-np.array([0.,size[1],0.]),seeds_p,seeds_p+np.array([0.,size[1],0.])))
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seeds_p = np.vstack((seeds_p-np.array([0.,0.,size[2]]),seeds_p,seeds_p+np.array([0.,0.,size[2]])))
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else:
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weights_p = weights.flatten()
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seeds_p = seeds
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if cpus > 1:
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default_args = partial(findClosestSeed,seeds_p,weights_p)
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pool = multiprocessing.Pool(processes = cpus) # initialize workers
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result = pool.map_async(default_args, [point for point in grid]) # evaluate function in parallel
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pool.close()
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pool.join()
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closestSeeds = np.array(result.get()).flatten()
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else:
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closestSeeds= np.array([findClosestSeed(seeds_p,weights_p,point) for point in grid])
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if cpus > 1:
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default_args = partial(findClosestSeed,seeds_p,weights_p)
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pool = multiprocessing.Pool(processes = cpus) # initialize workers
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result = pool.map_async(default_args, [point for point in grid]) # evaluate function in parallel
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pool.close()
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pool.join()
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closestSeeds = np.array(result.get()).flatten()
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else:
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closestSeeds= np.array([findClosestSeed(seeds_p,weights_p,point) for point in grid])
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return grains[closestSeeds%seeds.shape[0]]
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return grains[closestSeeds%seeds.shape[0]]
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def Voronoi_tessellation(grid, seeds, grains, size, periodic = True):
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KDTree = spatial.cKDTree(seeds,boxsize=size) if periodic else spatial.cKDTree(seeds)
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devNull,closestSeeds = KDTree.query(grid)
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KDTree = spatial.cKDTree(seeds,boxsize=size) if periodic else spatial.cKDTree(seeds)
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devNull,closestSeeds = KDTree.query(grid)
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return grains[closestSeeds]
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return grains[closestSeeds]
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# --------------------------------------------------------------------
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@ -2,7 +2,6 @@
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import os
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import sys
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import random
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from optparse import OptionParser,OptionGroup
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import numpy as np
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@ -139,8 +138,8 @@ for name in filenames:
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i = 1
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progress = damask.util._ProgressBar(options.N,'',50)
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while i < options.N:
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candidates = np.random.choice(unpicked[unpicked.mask==False],replace=False,
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size=min(len(unpicked[unpicked.mask==False]),options.numCandidates))
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candidates = np.random.choice(unpicked[not unpicked.mask],replace=False,
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size=min(len(unpicked[not unpicked.mask]),options.numCandidates))
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tree = spatial.cKDTree(seeds[:i])
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distances, dev_null = tree.query(coords[candidates])
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best = distances.argmax()
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@ -1,5 +1,3 @@
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# -*- coding: UTF-8 no BOM -*-
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"""Aggregator for configuration file handling"""
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"""Aggregator for configuration file handling."""
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from .material import Material # noqa
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