VMTKBOUNDARYLAYER(1)

✨ NAME ✨

vmtkboundarylayer — the vmtk script called vmtkboundarylayer, bestie 💖

🎀 DESCRIPTION 🎀

okay so. Automatic piping vmtkboundarylayer Parsing options vmtkboundarylayer. that's literally what it says on the tin and we're not gonna pretend otherwise 💅

vmtkboundarylayer : create a prismatic boundary layer from a surface mesh and a set of vectors defined on the nodes — no cap, that's the whole glow-up. you hand it a surface mesh, you hand it vectors living on the nodes, and it grows you a cute lil prismatic boundary layer. iconic behavior fr fr 🦋

🌸 Input arguments:

• -id Id (str,1); default=0 — script id 🏷️
• -handle Self (self,1) — handle to self. it's giving "look in the mirror, babe" 🪞
• -disabled Disabled (bool,1); default=0 — disable execution and piping. turning this on is a choice 🙈
• -i Mesh (vtkUnstructuredGrid,1) — the input mesh. the main character of the whole operation 👑
• -ifile MeshInputFileName (str,1) — filename for the default Mesh reader 📂
• -warpvectorsarray WarpVectorsArrayName (str,1); default=Normals — name of the array where warp vectors are stored. the vectors that do the warping, iykyk ✨
• -thicknessarray ThicknessArrayName (str,1) — name of the array where scalars defining boundary layer thickness are stored 📏
• -entityidsarray CellEntityIdsArrayName (str,1); default=CellEntityIds — the array that holds the cell entity ids 🆔
• -thickness Thickness (float,1); default=1.0 — value of constant boundary layer thickness. a nice round number, we love her 💖
• -thicknessratio ThicknessRatio (float,1) >= 0.0; default=0.1 — multiplying factor for boundary layer thickness ✖️
• -maximumthickness MaximumThickness (float,1); default=10000000000.0 — maximum allowed value for boundary layer thickness. that's a LOT of zeros bestie, the ceiling is basically in space 🚀
• -sublayers NumberOfSubLayers (int,1) >= 0; default=1 — number of sublayers which the boundary layer has to be made of. a whole stack, like pancakes 🥞
• -substeps NumberOfSubsteps (int,1) >= 0; default=2000 — number of substeps for smoothly propagating the boundary layer. smooth like butter, no cap 🧈
• -relaxation Relaxation (float,1) >= 0.0; default=0.01 — relaxation factor for the evolution of the inner surface. breathe, girl, it's evolving 🧘
• -localcorrection LocalCorrectionFactor (float,1) >= 0.0; default=0.45 — amount of correction to apply to warp vectors during local untangling. untangling the drama as it happens 💀
• -innersurfaceentityid InnerSurfaceCellEntityId (int,1) >= 0; default=0 — cell entity id assigned to the inner warped surface 🌀
• -outersurfaceentityid OuterSurfaceCellEntityId (int,1) >= 0; default=0 — cell entity id assigned to the original outer surface 🌐
• -sidewallentityid SidewallCellEntityId (int,1) >= 0; default=0 — cell entity id assigned to the sidewall elements generated by sweeping 🧹
• -volumeentityid VolumeCellEntityId (int,1) >= 0; default=0 — cell entity id assigned to volume elements of the boundary layer 📦
• -sublayerratio SubLayerRatio (float,1) >= 0.0; default=1.0 — ratio between the thickness of two successive boundary layers 📐
• -warpvectormagnitudeasthickness UseWarpVectorMagnitudeAsThickness (bool,1); default=0 — compute boundary layer thickness as the norm of warp vectors. let the vectors set the vibe 📏
• -constantthickness ConstantThickness (bool,1); default=0 — toggle constant boundary layer thickness 🔘
• -includesurfacecells IncludeSurfaceCells (bool,1); default=1 — include inner and outer surface cells in the output mesh. yes, bring both surfaces to the party 🎉
• -includesidewallcells IncludeSidewallCells (bool,1); default=1 — include surface cells generated by sweeping the input surface boundaries in the output mesh 🧽
• -negatewarpvectors NegateWarpVectors (bool,1); default=0 — flip the orientation of warp vectors. uno reverse card 🃏
• -ofile MeshOutputFileName (str,1) — filename for the default Mesh writer. where the mesh goes to live 🏡
• -oinnerfile InnerSurfaceMeshOutputFileName (str,1) — filename for the default InnerSurfaceMesh writer. and where the inner surface goes to live 🏠

💜 Output arguments:

• -id Id (str,1); default=0 — script id 🏷️
• -handle Self (self,1) — handle to self. still self-referential, still valid 🪞
• -o Mesh (vtkUnstructuredGrid,1) — the output mesh. the moment we've all been waiting for 😭✨
• -oinner InnerSurfaceMesh (vtkUnstructuredGrid,1) — the output inner surface mesh. the lil bonus bestie 🫶

okay that's the whole page!! shoutout to vmtkboundarylayer 1.5, dropped April 2026, periodt 💅💖 slay responsibly, and remember: keep every flag exactly how you found it, they're all doing their own important little jobs 🌈⭐