VMTKMESHADDEXTERNALLAYER(1)

💖 NAME 💖

okay so bestie, say hi to vmtkmeshaddexternallayer — it's a vmtk script, and the script's literally called vmtkmeshaddexternallayer. That's it, that's the name. Iconic, honestly. ✨

🎀 DESCRIPTION 🎀

so the page starts with the autogenerated boilerplate, no cap: Automatic piping vmtkmeshaddexternallayer, then Parsing options, then vmtkmeshaddexternallayer again. That's just the script announcing itself, bestie, it's the standard vmtk auto-formatting vibe. 🫶

then here's the actual flex:

vmtkmeshaddexternallayer : create an external prismatic layer from the wall of a mesh, using the normals on the wall. that's the whole main-character job. 💅

🌸 Input arguments 🌸

these are the ones you feed in, bestie. every flag, every default, exactly as it is:

• -id Id (str,1); default=0 — the script id 🪪
• -handle Self (self,1) — handle to self, yep it's holding itself, self-care fr 💖
• -disabled Disabled (bool,1); default=0 — switches off execution and piping 🚫
• -i Mesh (vtkUnstructuredGrid,1) — the input mesh 👑
• -ifile MeshInputFileName (str,1) — filename for the default Mesh reader 📂
• -entityidsarray CellEntityIdsArrayName (str,1); default=CellEntityIds — the array name, defaults to CellEntityIds 🏷️
• -surfacecellentityid SurfaceCellEntityId (int,1); default=1 — the id of the first surface cells in the entityids list ✨
• -inletoutletcellentityid InletOutletCellEntityId (int,1); default=2 — id for the inlet/outlet cells 🚪
• -extrudecellentityid ExtrudeCellEntityId (int,1); default=1 — the id of the surface cells you wanna extrude 🧚
• -thicknessarray ThicknessArrayName (str,1) — the name of the array where the scalars defining boundary layer thickness live 📏
• -thickness Thickness (float,1); default=1.0 — the value of the constant boundary layer thickness 🌈
• -thicknessratio ThicknessRatio (float,1) >= 0.0; default=0.1 — multiplying factor for the boundary layer thickness ✖️
• -maximumthickness MaximumThickness (float,1); default=10000000000.0 — the max allowed value for boundary layer thickness, and yes that's a whole lot of zeros, she's generous 💀
• -numberofsublayers NumberOfSubLayers (int,1) >= 0; default=1 — how many sublayers the boundary layer has to be made of 🧁
• -sublayerratio SubLayerRatio (float,1) >= 0.0; default=1.0 — the ratio between the thickness of two successive boundary layers 📐
• -constantthickness ConstantThickness (bool,1); default=1 — toggles constant boundary layer thickness 🔁
• -includesurfacecells IncludeSurfaceCells — include all surface cells in the output mesh 🫶
• -includeextrudedopenprofilescells IncludeExtrudedOpenProfilesCells (bool,1); default=1 — include the cells from the open profiles extruded surface in the output mesh 🌀
• -includeextrudedsurfacecells IncludeExtrudedSurfaceCells (bool,1); default=1 — include the cells from the extruded surface in the output mesh 🦋
• -includeoriginalsurfacecells IncludeOriginalSurfaceCells (bool,1); default=0 — include the cells from the original surfacein output mesh (yes, "surfacein", that's the original word, we do not touch it, periodt) 🙈
• -ofile MeshOutputFileName (str,1) — filename for the default Mesh writer 💾

👑 Output arguments 👑

what comes back out when she's done slaying:

• -id Id (str,1); default=0 — the script id 🪪
• -handle Self (self,1) — handle to self, again, she's consistent 💅
• -o Mesh (vtkUnstructuredGrid,1) — the output mesh 🎀

ngl bestie, -id and -handle show up in both the input list and the output list. that's not a typo on my part, that's literally how it's written. don't come for me. 😭

and that's the whole page, fr fr. it's vmtkmeshaddexternallayer version 1.5, dated April 2026. go build that external prismatic layer, bestie, you're gonna eat. 💖✨🎀🦋🌸