EdgePressureForceField
Apply a force on edges, distributed on the edge nodes.
Vec3d
Templates:
- Vec3d
Target: Sofa.Component.MechanicalLoad
namespace: sofa::component::mechanicalload
parents:
- ForceField
Data
| Name | Description | Default value |
|---|---|---|
| name | object name | unnamed |
| printLog | if true, emits extra messages at runtime. | 0 |
| tags | list of the subsets the object belongs to | |
| bbox | this object bounding box | |
| componentState | The state of the component among (Dirty, Valid, Undefined, Loading, Invalid). | Undefined |
| listening | if true, handle the events, otherwise ignore the events | 0 |
| rayleighStiffness | Rayleigh damping - stiffness matrix coefficient | 0 |
| edgePressureMap | map between edge indices and their pressure | |
| pressure | Pressure force per unit area | |
| edgeIndices | Indices of edges separated with commas where a pressure is applied | |
| edges | List of edges where a pressure is applied | |
| normal | Normal direction for the plane selection of edges | |
| dmin | Minimum distance from the origin along the normal direction | 0 |
| dmax | Maximum distance from the origin along the normal direction | 0 |
| arrowSizeCoef | Size of the drawn arrows (0->no arrows, sign->direction of drawing | 0 |
| p_intensity | pressure intensity on edge normal | |
| binormal | Binormal of the 2D plane | |
| Visualization | ||
| showForces | draw arrows of edge pressures | 0 |
Links
| Name | Description | Destination type name |
|---|---|---|
| context | Graph Node containing this object (or BaseContext::getDefault() if no graph is used) | BaseContext |
| slaves | Sub-objects used internally by this object | BaseObject |
| master | nullptr for regular objects, or master object for which this object is one sub-objects | BaseObject |
| mechanicalStates | List of mechanical states to which this component is associated | BaseMechanicalState |
| mstate | MechanicalState used by this component | MechanicalState<Vec3d> |
| topology | link to the topology container | BaseMeshTopology |
Examples
EdgePressureForceField.scn
<?xml version="1.0"?>
<Node name="root" gravity="0 0 3" dt="0.04" >
<RequiredPlugin name="Sofa.Component.Collision.Detection.Algorithm"/> <!-- Needed to use components [BVHNarrowPhase BruteForceBroadPhase CollisionPipeline] -->
<RequiredPlugin name="Sofa.Component.Collision.Detection.Intersection"/> <!-- Needed to use components [MinProximityIntersection] -->
<RequiredPlugin name="Sofa.Component.Collision.Geometry"/> <!-- Needed to use components [TriangleCollisionModel] -->
<RequiredPlugin name="Sofa.Component.Collision.Response.Contact"/> <!-- Needed to use components [CollisionResponse] -->
<RequiredPlugin name="Sofa.Component.IO.Mesh"/> <!-- Needed to use components [MeshGmshLoader] -->
<RequiredPlugin name="Sofa.Component.LinearSolver.Iterative"/> <!-- Needed to use components [CGLinearSolver] -->
<RequiredPlugin name="Sofa.Component.Mapping.Linear"/> <!-- Needed to use components [IdentityMapping] -->
<RequiredPlugin name="Sofa.Component.Mass"/> <!-- Needed to use components [DiagonalMass] -->
<RequiredPlugin name="Sofa.Component.MechanicalLoad"/> <!-- Needed to use components [EdgePressureForceField] -->
<RequiredPlugin name="Sofa.Component.ODESolver.Backward"/> <!-- Needed to use components [EulerImplicitSolver] -->
<RequiredPlugin name="Sofa.Component.SolidMechanics.FEM.Elastic"/> <!-- Needed to use components [TriangularFEMForceField] -->
<RequiredPlugin name="Sofa.Component.SolidMechanics.Spring"/> <!-- Needed to use components [TriangularBendingSprings] -->
<RequiredPlugin name="Sofa.Component.StateContainer"/> <!-- Needed to use components [MechanicalObject] -->
<RequiredPlugin name="Sofa.Component.Topology.Container.Dynamic"/> <!-- Needed to use components [EdgeSetGeometryAlgorithms EdgeSetTopologyContainer EdgeSetTopologyModifier TriangleSetGeometryAlgorithms TriangleSetTopologyContainer TriangleSetTopologyModifier] -->
<RequiredPlugin name="Sofa.Component.Topology.Mapping"/> <!-- Needed to use components [Triangle2EdgeTopologicalMapping] -->
<RequiredPlugin name="Sofa.GL.Component.Rendering3D"/> <!-- Needed to use components [OglModel] -->
<CollisionPipeline name="defaultPipeline1" verbose="0" />
<BruteForceBroadPhase/>
<BVHNarrowPhase/>
<CollisionResponse name="CollisionResponse1" response="PenalityContactForceField" />
<MinProximityIntersection name="Proximity" alarmDistance="0.8" contactDistance="0.5" />
<DefaultAnimationLoop/>
<Node name="SquareGravity" >
<EulerImplicitSolver name="Euler Implicit" printLog="0" rayleighStiffness="0.1" rayleighMass="0.1" vdamping="0" />
<CGLinearSolver template="GraphScattered" name="CG Solver" printLog="0" iterations="100" tolerance="1e-06" threshold="1e-10" />
<MeshGmshLoader name="loader" filename="mesh/square3.msh" createSubelements="true"/>
<MechanicalObject template="Vec3" name="mObject1" position="@loader.position" velocity="0 0 0" force="0 0 0" externalForce="0 0 0" derivX="0 0 0" restScale="1" translation="@loader.translation" rotation="@loader.rotation" scale3d="@loader.scale3d" />
<TriangleSetTopologyContainer name="Container" position="@loader.position" edges="@loader.edges" triangles="@loader.triangles" />
<TriangleSetTopologyModifier name="Modifier" />
<TriangleSetGeometryAlgorithms template="Vec3" name="GeomAlgo" />
<DiagonalMass name="diagonalMass1" massDensity="0.15" />
<TriangularFEMForceField template="Vec3" name="FEM" method="large" poissonRatio="0.3" youngModulus="60" />
<TriangularBendingSprings template="Vec3" name="FEM-Bend" stiffness="300" damping="1" />
<TriangleCollisionModel template="Vec3" name="tTriangleModel1" />
<Node name="Visual">
<OglModel name="Visual" material="Default Diffuse 1 1 0 0 1 Ambient 1 0.2 0 0 1 Specular 0 1 0 0 1 Emissive 0 1 0 0 1 Shininess 0 45 No texture linked to the material No bump texture linked to the material " />
<IdentityMapping name="identityMap1" mapForces="0" mapConstraints="0" mapMasses="0" input="@.." output="@Visual" />
</Node>
<Node name="Edge Mesh" >
<EdgeSetTopologyContainer name="Container" />
<EdgeSetTopologyModifier name="Modifier" />
<EdgeSetGeometryAlgorithms template="Vec3" name="GeomAlgo" drawEdges="1" />
<Triangle2EdgeTopologicalMapping name="Mapping" input="@../Container" output="@Container" />
<EdgePressureForceField template="Vec3" name="edgePressureFF0" edges="@Container.edges" pressure="0 0 -0.1" normal="0 0 1" p_intensity="1" arrowSizeCoef="10"/>
</Node>
</Node>
</Node>
def createScene(root_node):
root = root_node.addChild('root', gravity="0 0 3", dt="0.04")
root.addObject('RequiredPlugin', name="Sofa.Component.Collision.Detection.Algorithm")
root.addObject('RequiredPlugin', name="Sofa.Component.Collision.Detection.Intersection")
root.addObject('RequiredPlugin', name="Sofa.Component.Collision.Geometry")
root.addObject('RequiredPlugin', name="Sofa.Component.Collision.Response.Contact")
root.addObject('RequiredPlugin', name="Sofa.Component.IO.Mesh")
root.addObject('RequiredPlugin', name="Sofa.Component.LinearSolver.Iterative")
root.addObject('RequiredPlugin', name="Sofa.Component.Mapping.Linear")
root.addObject('RequiredPlugin', name="Sofa.Component.Mass")
root.addObject('RequiredPlugin', name="Sofa.Component.MechanicalLoad")
root.addObject('RequiredPlugin', name="Sofa.Component.ODESolver.Backward")
root.addObject('RequiredPlugin', name="Sofa.Component.SolidMechanics.FEM.Elastic")
root.addObject('RequiredPlugin', name="Sofa.Component.SolidMechanics.Spring")
root.addObject('RequiredPlugin', name="Sofa.Component.StateContainer")
root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Dynamic")
root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Mapping")
root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
root.addObject('CollisionPipeline', name="defaultPipeline1", verbose="0")
root.addObject('BruteForceBroadPhase', )
root.addObject('BVHNarrowPhase', )
root.addObject('CollisionResponse', name="CollisionResponse1", response="PenalityContactForceField")
root.addObject('MinProximityIntersection', name="Proximity", alarmDistance="0.8", contactDistance="0.5")
root.addObject('DefaultAnimationLoop', )
square_gravity = root.addChild('SquareGravity')
square_gravity.addObject('EulerImplicitSolver', name="Euler Implicit", printLog="0", rayleighStiffness="0.1", rayleighMass="0.1", vdamping="0")
square_gravity.addObject('CGLinearSolver', template="GraphScattered", name="CG Solver", printLog="0", iterations="100", tolerance="1e-06", threshold="1e-10")
square_gravity.addObject('MeshGmshLoader', name="loader", filename="mesh/square3.msh", createSubelements="true")
square_gravity.addObject('MechanicalObject', template="Vec3", name="mObject1", position="@loader.position", velocity="0 0 0", force="0 0 0", externalForce="0 0 0", derivX="0 0 0", restScale="1", translation="@loader.translation", rotation="@loader.rotation", scale3d="@loader.scale3d")
square_gravity.addObject('TriangleSetTopologyContainer', name="Container", position="@loader.position", edges="@loader.edges", triangles="@loader.triangles")
square_gravity.addObject('TriangleSetTopologyModifier', name="Modifier")
square_gravity.addObject('TriangleSetGeometryAlgorithms', template="Vec3", name="GeomAlgo")
square_gravity.addObject('DiagonalMass', name="diagonalMass1", massDensity="0.15")
square_gravity.addObject('TriangularFEMForceField', template="Vec3", name="FEM", method="large", poissonRatio="0.3", youngModulus="60")
square_gravity.addObject('TriangularBendingSprings', template="Vec3", name="FEM-Bend", stiffness="300", damping="1")
square_gravity.addObject('TriangleCollisionModel', template="Vec3", name="tTriangleModel1")
visual = SquareGravity.addChild('Visual')
visual.addObject('OglModel', name="Visual", material="Default Diffuse 1 1 0 0 1 Ambient 1 0.2 0 0 1 Specular 0 1 0 0 1 Emissive 0 1 0 0 1 Shininess 0 45 No texture linked to the material No bump texture linked to the material ")
visual.addObject('IdentityMapping', name="identityMap1", mapForces="0", mapConstraints="0", mapMasses="0", input="@..", output="@Visual")
edge__mesh = SquareGravity.addChild('Edge Mesh')
edge__mesh.addObject('EdgeSetTopologyContainer', name="Container")
edge__mesh.addObject('EdgeSetTopologyModifier', name="Modifier")
edge__mesh.addObject('EdgeSetGeometryAlgorithms', template="Vec3", name="GeomAlgo", drawEdges="1")
edge__mesh.addObject('Triangle2EdgeTopologicalMapping', name="Mapping", input="@../Container", output="@Container")
edge__mesh.addObject('EdgePressureForceField', template="Vec3", name="edgePressureFF0", edges="@Container.edges", pressure="0 0 -0.1", normal="0 0 1", p_intensity="1", arrowSizeCoef="10")