https://github.com/alxbilger/jsonreader

SOFA plugin adding the ability to read SOFA scenes written in the json format
https://github.com/alxbilger/jsonreader

json sofa-framework

Last synced: 10 months ago
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SOFA plugin adding the ability to read SOFA scenes written in the json format

• Host: GitHub
• URL: https://github.com/alxbilger/jsonreader
• Owner: alxbilger
• License: mit
• Created: 2022-10-21T14:55:44.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2023-02-23T15:25:20.000Z (over 3 years ago)
• Last Synced: 2025-07-13T14:46:44.567Z (11 months ago)
• Topics: json, sofa-framework
• Language: C++
• Homepage: https://alxbilger.github.io/JsonReader/
• Size: 2.1 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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JsonReader

 
SOFA plugin adding the ability to read SOFA scenes written in the json format


# Usage

```

runSofa -l JsonReader path/to/scene.json

```

# Examples

Examples are provided in the `scenes` folder.

A SOFA scene written in json looks like:

```json

{

  "Node": {

    "name": "root",

    "dt": "0.02",

    "gravity": "0 -10 0",

    "printLog": "true",

    "Node": {

      "name": "plugins",

      "RequiredPlugin":[

        {"name":"Sofa.Component.Constraint.Projective"},

        {"name":"Sofa.Component.Engine.Select"},

        {"name":"Sofa.Component.LinearSolver.Direct"},

        {"name":"Sofa.Component.Mass"},

        {"name":"Sofa.Component.ODESolver.Backward"},

        {"name":"Sofa.Component.SolidMechanics.FEM.Elastic"},

        {"name":"Sofa.Component.StateContainer"},

        {"name":"Sofa.Component.Topology.Container.Grid"},

        {"name":"Sofa.Component.Visual"}

      ]

    },

    "VisualStyle": { "displayFlags": "showBehaviorModels showForceFields" },

    "DefaultAnimationLoop": { "name": "animationLoop" },

    "DefaultVisualManagerLoop": { "name": "visualLoop" },

    "EulerImplicitSolver": {

      "name": "odesolver",

      "rayleighStiffness": "0.1",

      "rayleighMass": "0.1"

    },

    "MechanicalObject": { "name": "DoFs" },

    "UniformMass": {

      "name": "mass",

      "totalMass": "320"

    },

    "RegularGridTopology": {

      "name": "grid",

      "nx": "4",

      "ny": "4",

      "nz": "20",

      "xmin": "9",

      "xmax": "6",

      "ymin": "0",

      "ymax": "3",

      "zmin": "0",

      "zmax": "19"

    },

    "BoxROI": {

      "name": "box",

      "box": "10 -1 -0.0001  -5 4 0.0001"

    },

    "FixedConstraint": { "indices": "@box.indices" },

    "EigenSimplicialLDLT": {

      "template": "CompressedRowSparseMatrixMat3x3d",

      "ordering": "Natural"

    },

    "HexahedronFEMForceField": {

      "name": "FEM",

      "youngModulus": "4000",

      "poissonRatio": "0.3",

      "method": "large"

    }

  }

}

```

# Compilation

See documentation on the SOFA website to compile an external plugin: https://www.sofa-framework.org/community/doc/plugins/build-a-plugin-from-sources/

## Dependencies

Only SOFA is a dependency