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ZMT zurich med tech

What is the proper workflow for generating unstructured/multidomain meshes?

Scheduled Pinned Locked Moved Solved Python API
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  • D Offline
    D Offline
    david_lloyd
    wrote on last edited by
    #1

    Hello! I've been working with the Python API for a while now primarily using voxelling and grid settings for structured solvers. Does the Python API support unstructured, multidomain meshing and unstructured solvers? If so, assuming I already have a model object that I want to mesh, what is the proper workflow to do so?

    Thanks!

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  • D Offline
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    david_lloyd
    wrote on last edited by david_lloyd
    #2

    Nevermind, I found example code in the "tutorial_emlf_unstructured_neuron_electroceuticals.py" example file, see below:

    def CreateMesh():
    	""" Creates a Multidomain Mesh with predefined priorities between domains
            and specified global and local options                        	"""
    
    	sel=.05  # Suface Edge Length
    	mel=.002 # Min Edge Length
    	
    	#create multi-domain mesh
    	global_opt = xcm.GlobalUnstructuredMeshingOptions()
    	global_opt.SurfaceEdgeLength = sel
    	global_opt.MinEdgeLength = mel
    
    	# Gets all the entities in the folder 'Nerve_Model'	
    	entities=s4l.model.AllEntities()['Nerve_Model'].Entities
    	
    	local_opt_dict={}
    	for ent in entities:
    		local_opt = xcm.LocalUnstructuredMeshingOptions()
    		print((ent, ent.Name))
    		if 'Saline' in ent.Name :
    			local_opt.Priority=0
    		elif 'Silicone' in ent.Name :
    			local_opt.Priority=1
    		elif 'Electrode' in ent.Name :
    			local_opt.Priority=2
    		elif 'Nerve' in ent.Name :
    			local_opt.Priority=3
    		elif 'Interstitial' in ent.Name :
    			local_opt.Priority=4
    		elif 'Connective' == ent.Name :
    			local_opt.Priority=5
    		elif 'Connective_' in ent.Name :
    			local_opt.Priority=5
    		elif 'Blood' in ent.Name :
    			local_opt.Priority=6	
    		elif 'Fascicle' in ent.Name :
    			local_opt.Priority=7
    		local_opt_dict[ent]=local_opt	
    		print((local_opt.Priority))
    		
    	# Creates an unstructured mesh on the domains using the defined options
    	mesh = xcm.GenerateUnstructuredMesh(entities, global_opt, local_opt_dict)
    	
    	return
    

    I did have a followup, how do we optimize the surface edge length and minimum edge lengths?

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