RegularGridSpringForceField
Spring acting on the edges and faces of a regular grid
Templates:
Vec1dVec2dVec3dVec6d
Target: Sofa.Component.SolidMechanics.Spring
namespace: sofa::component::solidmechanics::spring
parents:
StiffSpringForceField
Data:
| Name | Description | Default value |
|---|---|---|
| name | object name | unnamed |
| printLog | if true, emits extra messages at runtime. | 0 |
| tags | list of the subsets the objet 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 |
| isCompliance | Consider the component as a compliance, else as a stiffness | 0 |
| rayleighStiffness | Rayleigh damping - stiffness matrix coefficient | 0 |
| stiffness | uniform stiffness for the all springs | 100 |
| damping | uniform damping for the all springs | 5 |
| spring | pairs of indices, stiffness, damping, rest length | |
| springsIndices1 | List of indices in springs from the first mstate | |
| springsIndices2 | List of indices in springs from the second mstate | |
| indices1 | Indices of the source points on the first model | |
| indices2 | Indices of the fixed points on the second model | |
| lengths | List of lengths to create the springs. Must have the same than indices1 & indices2, or if only one element, it will be applied to all springs. If empty, 0 will be applied everywhere | |
| linesStiffness | Lines Stiffness | 100 |
| linesDamping | Lines Damping | 5 |
| quadsStiffness | Quads Stiffness | 100 |
| quadsDamping | Quads Damping | 5 |
| cubesStiffness | Cubes Stiffness | 100 |
| cubesDamping | Cubes Damping | 5 |
| Visualization | ||
| showArrowSize | size of the axis | 0.01 |
| drawMode | The way springs will be drawn: - 0: Line - 1:Cylinder - 2: Arrow | 0 |
Links:
| Name | Description |
|---|---|
| context | Graph Node containing this object (or BaseContext::getDefault() if no graph is used) |
| slaves | Sub-objects used internally by this object |
| master | nullptr for regular objects, or master object for which this object is one sub-objects |
| mechanicalStates | List of mechanical states to which this component is associated |
| object1 | First object associated to this component |
| object2 | Second object associated to this component |
Examples
Component/SolidMechanics/Spring/RegularGridSpringForceField.scn
<Node name="root" dt="0.02">
<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 [NewProximityIntersection] -->
<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 [MeshOBJLoader] -->
<RequiredPlugin name="Sofa.Component.LinearSolver.Iterative"/> <!-- Needed to use components [CGLinearSolver] -->
<RequiredPlugin name="Sofa.Component.Mapping.Linear"/> <!-- Needed to use components [BarycentricMapping] -->
<RequiredPlugin name="Sofa.Component.Mass"/> <!-- Needed to use components [UniformMass] -->
<RequiredPlugin name="Sofa.Component.ODESolver.Backward"/> <!-- Needed to use components [EulerImplicitSolver] -->
<RequiredPlugin name="Sofa.Component.SolidMechanics.Spring"/> <!-- Needed to use components [RegularGridSpringForceField] -->
<RequiredPlugin name="Sofa.Component.StateContainer"/> <!-- Needed to use components [MechanicalObject] -->
<RequiredPlugin name="Sofa.Component.Topology.Container.Constant"/> <!-- Needed to use components [MeshTopology] -->
<RequiredPlugin name="Sofa.Component.Topology.Container.Grid"/> <!-- Needed to use components [RegularGridTopology] -->
<RequiredPlugin name="Sofa.GL.Component.Rendering3D"/> <!-- Needed to use components [OglModel] -->
<CollisionPipeline depth="6" verbose="0" draw="0" />
<BruteForceBroadPhase/>
<BVHNarrowPhase/>
<NewProximityIntersection name="Proximity" alarmDistance="0.3" contactDistance="0.2" />
<CollisionResponse name="Response" response="PenalityContactForceField" />
<DefaultAnimationLoop/>
<Node name="Chain">
<Node name="TorusFixed">
<MeshOBJLoader name="loader" filename="mesh/torus2_for_collision.obj" />
<MeshTopology src="@loader" />
<MechanicalObject src="@loader" />
<TriangleCollisionModel simulated="0" moving="0" />
<MeshOBJLoader name="meshLoader_3" filename="mesh/torus2.obj" handleSeams="1" />
<OglModel name="Visual" src="@meshLoader_3" color="gray" />
</Node>
<Node name="TorusFFD1">
<EulerImplicitSolver name="cg_odesolver" printLog="false" rayleighStiffness="0.1" rayleighMass="0.1" />
<CGLinearSolver iterations="25" name="linear solver" tolerance="1.0e-9" threshold="1.0e-9" />
<MechanicalObject translation="2.5 0 0" />
<UniformMass totalMass="5" />
<RegularGridTopology nx="6" ny="2" nz="5" xmin="-2.5" xmax="2.5" ymin="-0.5" ymax="0.5" zmin="-2" zmax="2" />
<RegularGridSpringForceField name="Springs" stiffness="200" damping="2" />
<Node name="Visu">
<MeshOBJLoader name="meshLoader_4" filename="mesh/torus.obj" handleSeams="1" />
<OglModel name="Visual" src="@meshLoader_4" dx="2.5" color="yellow" />
<BarycentricMapping input="@.." output="@Visual" />
</Node>
<Node name="Surf2">
<MeshOBJLoader name="loader" filename="mesh/torus_for_collision.obj" />
<MeshTopology src="@loader" />
<MechanicalObject src="@loader" translation="2.5 0 0" />
<TriangleCollisionModel />
<BarycentricMapping />
</Node>
</Node>
<Node name="TorusFFD2">
<EulerImplicitSolver name="cg_odesolver" printLog="false" />
<CGLinearSolver iterations="25" name="linear solver" tolerance="1.0e-9" threshold="1.0e-9" />
<MechanicalObject dx="5" />
<UniformMass totalMass="5" />
<RegularGridTopology nx="6" ny="5" nz="2" xmin="-2.5" xmax="2.5" ymin="-2" ymax="2" zmin="-0.5" zmax="0.5" />
<RegularGridSpringForceField name="Springs" stiffness="200" damping="2" />
<Node name="Visu">
<MeshOBJLoader name="meshLoader_1" filename="mesh/torus2.obj" handleSeams="1" />
<OglModel name="Visual" src="@meshLoader_1" dx="5" color="yellow" />
<BarycentricMapping input="@.." output="@Visual" />
</Node>
<Node name="Surf2">
<MeshOBJLoader name="loader" filename="mesh/torus2_for_collision.obj" />
<MeshTopology src="@loader" />
<MechanicalObject src="@loader" dx="5" />
<TriangleCollisionModel />
<BarycentricMapping />
</Node>
</Node>
<Node name="TorusFFD3">
<EulerImplicitSolver name="cg_odesolver" printLog="false" />
<CGLinearSolver iterations="25" name="linear solver" tolerance="1.0e-9" threshold="1.0e-9" />
<MechanicalObject dx="7.5" />
<UniformMass totalMass="5" />
<RegularGridTopology nx="6" ny="2" nz="5" xmin="-2.5" xmax="2.5" ymin="-0.5" ymax="0.5" zmin="-2" zmax="2" />
<RegularGridSpringForceField name="Springs" stiffness="200" damping="2" />
<Node name="Visu">
<MeshOBJLoader name="meshLoader_2" filename="mesh/torus.obj" handleSeams="1" />
<OglModel name="Visual" src="@meshLoader_2" dx="7.5" color="yellow" />
<BarycentricMapping input="@.." output="@Visual" />
</Node>
<Node name="Surf2">
<MeshOBJLoader name="loader" filename="mesh/torus_for_collision.obj" />
<MeshTopology src="@loader" />
<MechanicalObject src="@loader" dx="7.5" />
<TriangleCollisionModel />
<BarycentricMapping />
</Node>
</Node>
<Node name="TorusFFD4">
<EulerImplicitSolver name="cg_odesolver" printLog="false" />
<CGLinearSolver iterations="25" name="linear solver" tolerance="1.0e-9" threshold="1.0e-9" />
<MechanicalObject dx="10" />
<UniformMass totalMass="5" />
<RegularGridTopology nx="6" ny="5" nz="2" xmin="-2.5" xmax="2.5" ymin="-2" ymax="2" zmin="-0.5" zmax="0.5" />
<RegularGridSpringForceField name="Springs" stiffness="200" damping="2" />
<Node name="Visu">
<MeshOBJLoader name="meshLoader_0" filename="mesh/torus2.obj" handleSeams="1" />
<OglModel name="Visual" src="@meshLoader_0" dx="10" color="yellow" />
<BarycentricMapping input="@.." output="@Visual" />
</Node>
<Node name="Surf2">
<MeshOBJLoader name="loader" filename="mesh/torus2_for_collision.obj" />
<MeshTopology src="@loader" />
<MechanicalObject src="@loader" dx="10" />
<TriangleCollisionModel />
<BarycentricMapping />
</Node>
</Node>
</Node>
</Node>
def createScene(rootNode):
root = rootNode.addChild('root', dt="0.02")
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.ODESolver.Backward")
root.addObject('RequiredPlugin', name="Sofa.Component.SolidMechanics.Spring")
root.addObject('RequiredPlugin', name="Sofa.Component.StateContainer")
root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Constant")
root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Grid")
root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
root.addObject('CollisionPipeline', depth="6", verbose="0", draw="0")
root.addObject('BruteForceBroadPhase')
root.addObject('BVHNarrowPhase')
root.addObject('NewProximityIntersection', name="Proximity", alarmDistance="0.3", contactDistance="0.2")
root.addObject('CollisionResponse', name="Response", response="PenalityContactForceField")
root.addObject('DefaultAnimationLoop')
Chain = root.addChild('Chain')
TorusFixed = Chain.addChild('TorusFixed')
TorusFixed.addObject('MeshOBJLoader', name="loader", filename="mesh/torus2_for_collision.obj")
TorusFixed.addObject('MeshTopology', src="@loader")
TorusFixed.addObject('MechanicalObject', src="@loader")
TorusFixed.addObject('TriangleCollisionModel', simulated="0", moving="0")
TorusFixed.addObject('MeshOBJLoader', name="meshLoader_3", filename="mesh/torus2.obj", handleSeams="1")
TorusFixed.addObject('OglModel', name="Visual", src="@meshLoader_3", color="gray")
TorusFFD1 = Chain.addChild('TorusFFD1')
TorusFFD1.addObject('EulerImplicitSolver', name="cg_odesolver", printLog="false", rayleighStiffness="0.1", rayleighMass="0.1")
TorusFFD1.addObject('CGLinearSolver', iterations="25", name="linear solver", tolerance="1.0e-9", threshold="1.0e-9")
TorusFFD1.addObject('MechanicalObject', translation="2.5 0 0")
TorusFFD1.addObject('UniformMass', totalMass="5")
TorusFFD1.addObject('RegularGridTopology', nx="6", ny="2", nz="5", xmin="-2.5", xmax="2.5", ymin="-0.5", ymax="0.5", zmin="-2", zmax="2")
TorusFFD1.addObject('RegularGridSpringForceField', name="Springs", stiffness="200", damping="2")
Visu = TorusFFD1.addChild('Visu')
Visu.addObject('MeshOBJLoader', name="meshLoader_4", filename="mesh/torus.obj", handleSeams="1")
Visu.addObject('OglModel', name="Visual", src="@meshLoader_4", dx="2.5", color="yellow")
Visu.addObject('BarycentricMapping', input="@..", output="@Visual")
Surf2 = TorusFFD1.addChild('Surf2')
Surf2.addObject('MeshOBJLoader', name="loader", filename="mesh/torus_for_collision.obj")
Surf2.addObject('MeshTopology', src="@loader")
Surf2.addObject('MechanicalObject', src="@loader", translation="2.5 0 0")
Surf2.addObject('TriangleCollisionModel')
Surf2.addObject('BarycentricMapping')
TorusFFD2 = Chain.addChild('TorusFFD2')
TorusFFD2.addObject('EulerImplicitSolver', name="cg_odesolver", printLog="false")
TorusFFD2.addObject('CGLinearSolver', iterations="25", name="linear solver", tolerance="1.0e-9", threshold="1.0e-9")
TorusFFD2.addObject('MechanicalObject', dx="5")
TorusFFD2.addObject('UniformMass', totalMass="5")
TorusFFD2.addObject('RegularGridTopology', nx="6", ny="5", nz="2", xmin="-2.5", xmax="2.5", ymin="-2", ymax="2", zmin="-0.5", zmax="0.5")
TorusFFD2.addObject('RegularGridSpringForceField', name="Springs", stiffness="200", damping="2")
Visu = TorusFFD2.addChild('Visu')
Visu.addObject('MeshOBJLoader', name="meshLoader_1", filename="mesh/torus2.obj", handleSeams="1")
Visu.addObject('OglModel', name="Visual", src="@meshLoader_1", dx="5", color="yellow")
Visu.addObject('BarycentricMapping', input="@..", output="@Visual")
Surf2 = TorusFFD2.addChild('Surf2')
Surf2.addObject('MeshOBJLoader', name="loader", filename="mesh/torus2_for_collision.obj")
Surf2.addObject('MeshTopology', src="@loader")
Surf2.addObject('MechanicalObject', src="@loader", dx="5")
Surf2.addObject('TriangleCollisionModel')
Surf2.addObject('BarycentricMapping')
TorusFFD3 = Chain.addChild('TorusFFD3')
TorusFFD3.addObject('EulerImplicitSolver', name="cg_odesolver", printLog="false")
TorusFFD3.addObject('CGLinearSolver', iterations="25", name="linear solver", tolerance="1.0e-9", threshold="1.0e-9")
TorusFFD3.addObject('MechanicalObject', dx="7.5")
TorusFFD3.addObject('UniformMass', totalMass="5")
TorusFFD3.addObject('RegularGridTopology', nx="6", ny="2", nz="5", xmin="-2.5", xmax="2.5", ymin="-0.5", ymax="0.5", zmin="-2", zmax="2")
TorusFFD3.addObject('RegularGridSpringForceField', name="Springs", stiffness="200", damping="2")
Visu = TorusFFD3.addChild('Visu')
Visu.addObject('MeshOBJLoader', name="meshLoader_2", filename="mesh/torus.obj", handleSeams="1")
Visu.addObject('OglModel', name="Visual", src="@meshLoader_2", dx="7.5", color="yellow")
Visu.addObject('BarycentricMapping', input="@..", output="@Visual")
Surf2 = TorusFFD3.addChild('Surf2')
Surf2.addObject('MeshOBJLoader', name="loader", filename="mesh/torus_for_collision.obj")
Surf2.addObject('MeshTopology', src="@loader")
Surf2.addObject('MechanicalObject', src="@loader", dx="7.5")
Surf2.addObject('TriangleCollisionModel')
Surf2.addObject('BarycentricMapping')
TorusFFD4 = Chain.addChild('TorusFFD4')
TorusFFD4.addObject('EulerImplicitSolver', name="cg_odesolver", printLog="false")
TorusFFD4.addObject('CGLinearSolver', iterations="25", name="linear solver", tolerance="1.0e-9", threshold="1.0e-9")
TorusFFD4.addObject('MechanicalObject', dx="10")
TorusFFD4.addObject('UniformMass', totalMass="5")
TorusFFD4.addObject('RegularGridTopology', nx="6", ny="5", nz="2", xmin="-2.5", xmax="2.5", ymin="-2", ymax="2", zmin="-0.5", zmax="0.5")
TorusFFD4.addObject('RegularGridSpringForceField', name="Springs", stiffness="200", damping="2")
Visu = TorusFFD4.addChild('Visu')
Visu.addObject('MeshOBJLoader', name="meshLoader_0", filename="mesh/torus2.obj", handleSeams="1")
Visu.addObject('OglModel', name="Visual", src="@meshLoader_0", dx="10", color="yellow")
Visu.addObject('BarycentricMapping', input="@..", output="@Visual")
Surf2 = TorusFFD4.addChild('Surf2')
Surf2.addObject('MeshOBJLoader', name="loader", filename="mesh/torus2_for_collision.obj")
Surf2.addObject('MeshTopology', src="@loader")
Surf2.addObject('MechanicalObject', src="@loader", dx="10")
Surf2.addObject('TriangleCollisionModel')
Surf2.addObject('BarycentricMapping')