Python Scripting - Find pairs for creating a WireSet

[isouto]

Hi,

I have a structure in Abaqus composed by different parts. In order to define connector assignments between elements I need to create Wire features with two nodes, both in the same position but belonging to different parts. in the next script I should be able to find a solution somehow to replace vertices1[3] and vertices2[8] for a more general solution so I do not have to find the nodes 3 and 8.

Thanks in advanced,

modelname = 'Model-1'
assemblyname1 = 'UPRIGHT_2XL31-1'
assemblyname2 = 'CBRA 60402-1'

stepname_initial = 'Initial'

a = mdb.models[modelname].rootAssembly
vertices1 = a.instances[assemblyname1].vertices
vertices2 = a.instances[assemblyname2].vertices

a.WirePolyLine(points=((vertices1[3], vertices2[8]), ), mergeType=IMPRINT, meshable=OFF)

a = mdb.models[modelname].rootAssembly
e1 = a.edges
edges1 = e1[0:1]
a.Set(edges=edges1, name='Wire')

 

[Mustaine3]

3 and 8 are the IDs of the vertices, not node numbers.

Based on what criteria shall the script get the vertices when you do not want to use the IDs? Is the user clicking on them in a plugin or do you want to find them based on coordinates? Or something else?