ZeroDB

Full name:

pylith.bc.ZeroDB

Journal name:

zerodb

Special case of a UniformDB spatial database with uniform zero initial amplitude values for degrees of freedom.

Implements SpatialDB.

Pyre Properties

• data=<list>: Values in spatial database.

  • default value: []

  • current value: [], from {default}

• description=<str>: Description for database.

  • default value: ‘’

  • current value: ‘’, from {default}

  • validator: <function validateDescription at 0x124922820>

• label=<str>: Label for ZeroDB spatial database.

  • default value: ‘Zero initial amplitude spatial database.’

  • current value: ‘Zero initial amplitude spatial database.’, from {default}

• values=<list>: Names of values in spatial database.

  • default value: []

  • current value: [], from {default}

Example

Example of setting ZeroDB Pyre properties and facilities in a parameter file.

# Zero displacement boundary condition constraining the y degree of freedom on the -y boundary.
[pylithapp.problem.bc.bc_yneg]
constrained_dof = [1]
label = boundary_yneg
field = displacement

db_auxiliary_field = pylith.bc.ZeroDB
db_auxiliary_field.description = Dirichlet displacement boundary condition on the -y boundary