Kratos MDPA Preview3D mesh viewer for VS Code

Preview, organize, edit, and remesh Kratos Multiphysics .mdpa model-part files — and VTK / STL / OBJ / PLY meshes — with a navigable ModelPart / SubModelPart outline, mesh quality, field plots, and in-place editing. No Python or compiled Kratos required.

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3D mesh preview

View nodes, elements, conditions, and geometries in a VTK.js viewer. Volume elements are shown as their boundary surface; quadratic elements are approximated by their corner nodes.

The 3D viewer & outline

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SubModelParts as layers

An outline tree of every entity block and the full SubModelPart hierarchy, each an independently toggleable overlay — isolate inlets, outlets, and boundaries with a click.

Layers & isolation

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Mesh quality

Purely geometric metrics inspired by Kratos' ComputeMeshQualityProcess: aspect/edge ratio, min/max angle, and size gradation — with histograms and a Good/Acceptable/Bad/Unacceptable verdict.

Mesh quality metrics

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Field visualization

Plot NodalData, ElementalData, and ConditionalData fields as contours, quiver glyphs, or isosurfaces, with selectable colormaps and a live legend.

Field visualization

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Edit, remesh & level-set

Linear→quadratic conversion, scale / translate / rotate / merge / delete, an undoable operation history with JSON recipes, and MMG remeshing and level-set splitting via WebAssembly.

Mesh editing & MMG

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VTK & mesh formats

Open legacy .vtk (ASCII or binary), VTK XML (.vtu/.vtp/.vti/.vts/.vtr), multiblock .vtm, STL, OBJ, or PLY files. Kratos time series load automatically, with a timeline scrubber and play/pause controls.

VTK & mesh formats

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Built-in navigation

An orientation cube with axis arrows, an on-screen orbit / pan / zoom panel, a background grid, screenshot export, and find-entity-by-ID.

Navigation & orientation

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Flowgraph node editor

Build your Kratos case visually — pick the Flowgraph problemtype to split the view and open the embedded node editor, with a two-way ProjectParameters bridge to the current case.

Flowgraph node editor

The MDPA preview: 3D mesh, ModelPart / SubModelPart outline, stats, and toolbar

The extension is fully self-contained — a pure-TypeScript parser feeds a VTK.js viewer running in a webview. The raw text editor stays the default; open the preview from the editor-title button, the explorer context menu, or the Open MDPA Preview command.