DOLFIN User Manual - FEniCS Project
DOLFIN User Manual - FEniCS Project DOLFIN User Manual - FEniCS Project
DOLFIN User ManualHoffman, Jansson, Logg, Wells// Mark cells for refinementfor (CellIterator cell(mesh); !cell.end(); ++cell)if ( ... )cell->mark();// Refine meshmesh.refine();It is also possible to directly mark all Cells for refinement to refine the Meshuniformly:// Refine all cellsmesh.refineUniformly();32
Chapter 5Functions◮ Developer’s note: Since this chapter was written, the Function class hasseen a number of improvements which are not covered here. Chapter needsto be updated.The central concept of a function on a domain Ω ⊂ R d is modeled by the classFunction, which is used in DOLFIN to represent coefficients or solutions ofpartial differential equations.5.1 Basic propertiesThe following basic properties hold for all Functions:• A Function can be scalar or vector-valued;• A Function can be evaluated at each Vertex of a Mesh;• A Function can be restricted to each local Cell of a Mesh;• The underlying representation of a Function may vary.33
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- Page 25 and 26: Chapter 3Linear algebra◮ Develope
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- Page 29 and 30: Chapter 4The mesh◮ Developer’s
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<strong>DOLFIN</strong> <strong>User</strong> <strong>Manual</strong>Hoffman, Jansson, Logg, Wells// Mark cells for refinementfor (CellIterator cell(mesh); !cell.end(); ++cell)if ( ... )cell->mark();// Refine meshmesh.refine();It is also possible to directly mark all Cells for refinement to refine the Meshuniformly:// Refine all cellsmesh.refineUniformly();32
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