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Add function to properly extract global solution #64

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Add function to properly extract global solution #64

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27 changes: 20 additions & 7 deletions src/problems.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -339,25 +339,38 @@ function get_global_solution(problem::Problem, assembly::Assembly)
end
end

"""
get_element_solution(problem, assembly, element)

Return the global solution (u, la) at `element`s nodes.
"""
function get_element_solution(problem::Problem{P}, assembly::Assembly, element::Element) where P<:FieldProblem
u = assembly.u[get_gdofs(problem,element)]
la = assembly.la[get_gdofs(problem,element)]
field_dim = get_unknown_field_dimension(problem)
nnodes = div(length(u),field_dim)
un = [(idx = (i-1)*field_dim; u[idx+1:idx+field_dim]) for i in 1:nnodes]
lan = [(idx = (i-1)*field_dim; la[idx+1:idx+field_dim]) for i in 1:nnodes]
return un, lan
end

function update!(problem::Problem{P}, assembly::Assembly, elements::Vector{Element}, time::Float64) where P<:FieldProblem
u, la = get_global_solution(problem, assembly)
field_name = get_unknown_field_name(problem)
# update solution u for elements
for element in elements
connectivity = get_connectivity(element)
update!(element, field_name, time => tuple(u[connectivity]...))
u, la = get_element_solution(problem,assembly,element)
update!(element, field_name, time => tuple(u...))
end
end

function update!(problem::Problem{P}, assembly::Assembly, elements::Vector{Element}, time::Float64) where P<:BoundaryProblem
u, la = get_global_solution(problem, assembly)
parent_field_name = get_parent_field_name(problem) # displacement
field_name = get_unknown_field_name(problem) # lambda
# update solution and lagrange multipliers for boundary elements
for element in elements
connectivity = get_connectivity(element)
update!(element, parent_field_name, time => tuple(u[connectivity]...))
update!(element, field_name, time => tuple(la[connectivity]...))
u, la = get_element_solution(problem,assembly,element)
update!(element, parent_field_name, time => tuple(u...))
update!(element, field_name, time => tuple(la...))
end
end

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