v0.14.0

TopOpt v0.14.0

Diff since v0.13.0

New features

• Level-set topology optimization via a port of OpenLSTO, with 2D and 3D
  level-set methods, hole nucleation, p-norm stress minimization, and 3D
  compliance minimization; results are visualizable and documented in a new
  tutorial and API reference (#334, #336).
• New and updated Quarto tutorials addressing many open issues: stochastic
  compliance (mean/std objectives, exact and randomized trace estimators, and an
  augmented-Lagrangian maximum-compliance constraint), compliance-constrained
  volume minimization, fixed-element regions, the projected density filter,
  iterative/matrix-free and custom solvers, INP import and VTK export, a
  penalty-function comparison, and simultaneous analysis and design (#332).
• ProjectedDensityFilterFun is now exported with a convenience constructor, and
  a physics-inferred FEASolver(Solver, problem) constructor accepts any
  AbstractLinearSolver subtype (#332).
• TemperatureFun and cell_temperature for heat-transfer problems; save_mesh
  now writes the nodal temperature field (#323, #324).
• All exported TopOpt features are now documented (#325).

Breaking changes

• The celltype::Symbol keyword replaces the positional
  Val{:Linear}/Val{:Quadratic} API in problem and grid constructors (#323).

Improvements

• Static (offline) visualization for tutorials, with WGLMakie/Bonito export
  support (#322).
• JET findings fixed, GESO crossover/mutation deduplicated, and
  TrussFEACrossSec arithmetic added (#323).

Prepared with assistance from deepseek-v4-pro via opencode.

Merged pull requests:

• Improve static visualization tutorials (#322) (@mohdibntarek)
• Replace Val{:Linear} API with celltype keyword and fix JET issues (#323) (@mohdibntarek)
• Write nodal temperature in save_mesh for heat problems (#324) (@mohdibntarek)
• Document all exported TopOpt features; simplify JET report comment (#325) (@mohdibntarek)
• Add tutorials and docs for outstanding issues (#332) (@mohdibntarek)
• Add level-set topology optimization (OpenLSTO port) (#334) (@mohdibntarek)
• Complete the OpenLSTO port: hole nucleation, stress, 3D, docs, and visualization (#336) (@mohdibntarek)

Closed issues:

• Stochastic topology optimisation (#31)
• Simultaneous analysis and design tutorial (#91)
• Example on custom linear system solver and preconditioner (#96)
• using type TrussFEACrossSec{Float64} with TrussSolver (#156)
• Temperature function (#202)
• Improve visualize and mesh writing for heat problems (#205)
• Restore test coverage after docs overhaul (#244)
• Tutorials in PR preview docs lose Quarto formatting (#252)
• Deduplicate repeated algorithm logic in BESO/GESO and thermal adjoint (#259)
• Convert WCSMO benchmark demos to Quarto tutorials (#261)
• Tutorial: Stochastic compliance minimization with SVD-based methods (#266)
• Add tutorial for FixedElementProjectorFun (#284)
• Add tutorial for ProjectedDensityFilterFun (#285)
• Add tutorial for iterative and matrix-free solvers (#286)
• Add tutorial for VTK export (#287)
• Add tutorial for INP file import (#288)
• Add tutorial comparing alternative penalty functions (#289)
• Improve visualization default options (#291)
• Wrap TopOpt_in_PETSc_jll (precompiled binary for topopt/TopOpt_in_PETSc) (#328)
• Wrap OpenLSTO_jll (precompiled binary for M2DOLab/OpenLSTO) (#327)
• Add level-set topology optimization (OpenLSTO port) (#333)