如何对相似的几何模型使用e.findAt ?

Question

我使用Abaqus宏记录定义一个集:边(20度)。我的最终目标是为不同的.STEP模型/几何形状运行脚本，除了几个参数值外，这些模型/几何形状在每个方面都是相同的。对于每个模型，我使用相同的过程来选择突出显示的边缘:从边乘角度20创建一个集合。然而，当我对其他几何模型运行它时，它选择了一个完全不同的e.getSequenceFromMask，或者我应该说，在运行类似边缘的命令后，它为e.findAt选择了一个完全不同的集合。

session.journalOptions.replayGeometry
session.journalOptions.setValues(replayGeometry=INDEX)

我知道程序对findAt有限制:

findAt初始使用ACIS公差1E-6。结果，findAt返回位于指定的任意点或距离该任意点小于1E-6的任何边。

在所有相似的模型中选择边缘，但尺寸有一些变化

如果有人能建议如何确保在使用e.findAt命令时为不同的几何形状选择相同的边缘，我将不胜感激。

我代码:

#Sample for the same edges selected from different dimensioned CAD models
#CAD Model_1
edges = e.getSequenceFromMask(mask=(
'[#63002104 #88110 #10000480 #20402 #480c802 #10420070 #c4411',
' #70104842 #10022000 #1e2002 #30 #80820010 #20003 #18144186',
' #b000 ]',), )
p.Set(edges=edges, name='Set-2')
#Set 2:
mdb.models['Model-1'].parts['Circular_knit - 2, 3, 10'].edges.findAt(((2.808153, 3.86272, -0.231317),),((3.959929, 2.669325, -0.231317),),((3.581888, 1.932068, -0.134932),),((1.501975, 3.782442, -0.134931),),((2.094736, 4.291667, -0.231317),),((2.135971, 3.464163, -0.134931),),((2.705066, 3.040627, -0.134931),),((3.436245, 3.316406, -0.231317),),((3.19197, 2.524704, -0.134932),),((4.363292, 1.941137, -0.231317),),((3.862971, 1.280728, -0.134932),),((-0.318814, 3.68708, 0.0),),((1.317672, 4.590214, -0.231317),),((4.764061, 0.331739, -0.231318),),((4.74929, -0.500571, -0.231318),),((4.590214, -1.317672, -0.231317),),((4.634078, 1.15397, -0.231318),),((-0.590217, 4.023581, -0.132766),),((-0.331245, 4.765369, -0.229231),),((0.822343, 3.985795, -0.134932),),((0.500571, 4.74929, -0.231318),),((4.02668, 0.590473, -0.134933),),((4.068041, -0.117724, -0.134933),),((4.291667, -2.094736, -0.231317),),((3.464163, -2.135971, -0.134931),),((3.86272, -2.808153, -0.231317),),((1.932068, -3.581888, -0.134932),),((1.280728, -3.862971, -0.134932),),((1.15397, -4.634078, -0.231318),),((0.590473, -4.02668, -0.134933),),((-0.117724, -4.068041, -0.134933),),((3.985795, -0.822343, -0.134932),),((0.117724, 4.068041, -0.134933),),((-1.15397, 4.634078, -0.231318),),((-1.280728, 3.862971, -0.134932),),((-2.524704, 3.19197, -0.134932),),((-2.669325, 3.959929, -0.231317),),((-1.941137, 4.363292, -0.231317),),((-1.932068, 3.581888, -0.134932),),((3.782442, -1.501975, -0.134931),),((3.040627, -2.705066, -0.134931),),((3.316406, -3.436245, -0.231317),),((2.524704, -3.19197, -0.134932),),((2.669325, -3.959929, -0.231317),),((1.941137, -4.363292, -0.231317),),((0.331739, -4.764061, -0.231318),),((-0.500571, -4.74929, -0.231318),),((-3.464163, 2.135971, -0.134931),),((-4.291667, 2.094736, -0.231317),),((-3.316406, 3.436245, -0.231317),),((-3.040627, 2.705066, -0.134931),),((-3.86272, 2.808153, -0.231317),),((-1.317672, -4.590214, -0.231317),),((-0.822343, -3.985795, -0.134932),),((-4.764061, -0.331739, -0.231318),),((-3.959929, -2.669325, -0.231317),),((-3.862971, -1.280728, -0.134932),),((-3.782442, 1.501975, -0.134931),),((-4.590214, 1.317672, -0.231317),),((-3.985795, 0.822343, -0.134932),),((-2.135971, -3.464163, -0.134931),),((-4.74929, 0.500571, -0.231318),),((-4.068041, 0.117724, -0.134933),),((-4.02668, -0.590473, -0.134933),),((-4.634078, -1.15397, -0.231318),),((-4.363292, -1.941137, -0.231317),),((-3.581888, -1.932068, -0.134932),),((-3.19197, -2.524704, -0.134932),),((-3.436245, -3.316406, -0.231317),),((-2.705066, -3.040627, -0.134931),),((-2.094736, -4.291667, -0.231317),),((-1.501975, -3.782442, -0.134931),),((-2.808153, -3.86272, -0.231317),),)

#CAD Model_2
edges = e.getSequenceFromMask(mask=('[#ffffffff:12 #3fffff ]', ), )
p.Set(edges=edges, name='Set-2')
#Set_2:
mdb.models['Model-1'].parts['Circular_knit - 2, 3, 9'].edges.findAt(((3.609683, 0.972388, 1e-06),),((3.573439, 0.962676, 0.012491),),((3.76173, 1.266747, -0.034239),),((4.345677, 1.895909, -0.106922),),((3.369331, 1.576662, 0.046191),),((3.59632, 1.879201, -0.101049),),((4.017677, 2.705061, -0.092682),),((3.044359, 2.137787, 0.046191),),((3.950435, 2.621725, -0.106922),),((4.319341, 2.493773, 0.001066),),((3.51041, 1.897727, -0.09198),),((4.38626, 1.924207, -0.137251),),((3.786618, 1.25932, -0.091981),),((4.653757, 1.133308, -0.137251),),((3.94777, 0.582649, -0.091981),),((4.779853, 0.307975, -0.137252),),((4.987546, 0.0, 0.001066),),((3.968123, -0.096234, -0.034239),),((3.706257, -0.319236, 0.046191),),((4.054105, -0.170725, -0.101049),),((4.831941, 0.333813, -0.092682),),((3.705386, 0.329198, 0.046191),),((3.686317, 0.32753, 0.012491),),((3.591928, 0.967631, 0.046191),),((4.608877, 1.112487, -0.106922),),((3.924549, 0.594285, -0.034239),),((4.732039, 0.295263, -0.106922),),((4.68676, 1.705841, 0.001066),),((3.351983, 1.568572, 0.012491),),((3.38599, 1.58443, 1e-06),),((4.426368, 1.966302, -0.092682),),((3.868004, 1.226157, -0.101049),),((4.700566, 1.167799, -0.092682),),((4.02216, 0.535857, -0.101049),),((3.723697, 0.3308, 1e-06),),((4.332897, 2.501599, 0.037363),),((3.215364, 2.475146, -0.101049),),((3.059416, 2.14833, 1e-06),),((3.028679, 2.126808, 0.012491),),((3.101617, 2.476941, -0.034239),),((3.435161, 3.267881, -0.106922),),((2.613351, 2.620422, 0.012491),),((2.649644, 2.983909, -0.091979),),((2.83651, 3.859543, -0.137251),),((2.134748, 3.057453, 1e-06),),((2.14551, 3.072822, 2e-06),),((2.850196, 3.916052, -0.092682),),((3.215994, 3.832672, 0.037363),),((3.205932, 3.820682, 0.001066),),((2.815512, 3.814744, -0.106922),),((2.129595, 3.050095, 0.046191),),((2.174904, 3.425595, -0.101049),),((2.501599, 4.332897, 0.037363),),((2.493773, 4.319341, 0.001066),),((2.067403, 3.388378, -0.034239),),((3.484612, 1.90072, -0.034239),),((3.985488, 2.656641, -0.137251),),((4.701469, 1.711195, 0.037363),),((4.927189, 0.868796, 0.037363),),((5.003198, 0.0, 0.037363),),((4.711421, -0.530933, -0.106922),),((3.891127, -0.78383, -0.034239),),((4.547648, -1.340996, -0.106922),),((3.695902, -1.447609, -0.034239),),((3.356209, -1.559509, 0.012491),),((3.710189, -1.469294, -0.091979),),((4.68676, -1.705841, 0.001066),),((4.816498, -0.510316, -0.092682),),((3.724569, -0.320838, 1e-06),),((3.687189, -0.317568, 0.012491),),((4.911774, 0.866078, 0.001066),),((3.48691, 3.361627, -0.092682),),((2.626886, 2.633957, 0.046191),),((3.127541, 2.478471, -0.091979),),((3.463619, 3.308353, -0.137251),),((2.639883, 2.646954, 1e-06),),((3.820682, 3.205932, 0.001066),),((3.832672, 3.215994, 0.037363),),((2.62438, 2.9779, -0.034239),),((2.118616, 3.034415, 0.012491),),((2.091239, 3.398682, -0.091979),),((2.736711, 2.995885, -0.101049),),((2.12688, 4.35149, -0.092682),),((1.547014, 3.751221, -0.101049),),((1.711195, 4.701469, 0.037363),),((1.469294, 3.710189, 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0.001066),),((0.096234, 3.968123, -0.034239),),((0.530933, 4.711421, -0.106922),),((0.866078, 4.911774, 0.001066),),((0.526717, 4.760715, -0.137252),),((1.705841, 4.68676, 0.001066),),((1.345405, 4.596926, -0.137251),),((0.802706, 3.908966, -0.09198),),((1.571395, 3.381699, 1e-06),),((1.579324, 3.398703, 2e-06),),((1.447609, 3.695902, -0.034239),),((1.559509, 3.356209, 0.012491),),((3.388378, -2.067403, -0.034239),),((3.050095, -2.129595, 0.046191),),((3.065152, -2.140139, 1e-06),),((3.034415, -2.118616, 0.012491),),((3.398682, -2.091239, -0.091979),),((3.425595, -2.174904, -0.101049),),((4.701469, -1.711195, 0.037363),),((0.965152, 3.621316, 2e-06),),((0.957971, 3.594516, 0.046191),),((0.953017, 3.576027, 0.012491),),((0.868796, 4.927189, 0.037363),),((0.319236, 3.706257, 0.046191),),((0.170725, 4.054105, -0.101049),),((0.0, 5.003198, 0.037363),),((-0.3073, 4.782091, -0.136321),),((-0.320838, 3.724565, 1e-05),),((-0.323171, 3.73689, 1.3e-05),),((-0.324216, 3.705803, 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Answer 1

请勿使用getSequenceFromMask

这个方法看起来很吸引人，然而，Abaqus文档并没有介绍掩码是如何形成的，所以不可能人为地为一组对象生成一个掩码。

使用坐标(findAt())或索引代替

大多数情况下，如果你的几何结构是复杂的，并且生成时没有控制顶点/边缘等编号，那么findAt()方法是你唯一的选择(以及getByBoundingBox(...),getByBoundingCylinder(...)和getByBoundingSphere(...)方法)。

如果逐边搜索不是很有效，并且getByBounding...方法不允许你选择正确的边数组，那么你可以尝试:1)找到序列的第一条边;2)然后使用(正如你已经尝试过的)getEdgesByEdgeAngle(...)方法来找到所有相邻的边。

如果你确定几何实体(顶点/边等)的编号，那么你可以通过它们的索引访问它们。因此，使用示例中的符号，如果几何图形感兴趣的边具有从n到m的索引，则:

part = mdb.models['Model-1'].parts['Circular_knit - 2, 3, 10']
set2 = part.Set(name='Set-2', edges=part.edges[n:m+1])