TopologicalChangeProcessor
Read topological changes and process them.
Target: Sofa.Component.Topology.Utility
namespace: sofa::component::topology::utility
parents:
- BaseObject
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 |
| filename | input file name for topological changes. | |
| listChanges | 0 for adding, 1 for removing, 2 for cutting and associated indices. | |
| interval | time duration between 2 actions | 0 |
| shift | shift between times in the file and times when they will be read | 0 |
| loop | set to 'true' to re-read the file when reaching the end | 0 |
| useDataInputs | If true, will perform operation using Data input lists rather than text file. | 0 |
| timeToRemove | If using option useDataInputs, time at which will be done the operations. Possibility to use the interval Data also. | 0 |
| pointsToRemove | List of point IDs to be removed. | |
| edgesToRemove | List of edge IDs to be removed. | |
| trianglesToRemove | List of triangle IDs to be removed. | |
| quadsToRemove | List of quad IDs to be removed. | |
| tetrahedraToRemove | List of tetrahedron IDs to be removed. | |
| hexahedraToRemove | List of hexahedron IDs to be removed. | |
| saveIndicesAtInit | set to 'true' to save the incision to do in the init to incise even after a movement | 0 |
| epsilonSnapPath | epsilon snap path | 0.1 |
| epsilonSnapBorder | epsilon snap path | 0.25 |
| Visualization | ||
| draw | draw information | 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 |
| topology | link to the topology container | BaseMeshTopology |
Examples
TopologicalChangeProcessor_useDataInputs_option.scn
<Node name="root" gravity="0 -9 0" dt="0.01">
<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.Engine.Select"/> <!-- Needed to use components [BoxROI] -->
<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.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 [TriangleSetGeometryAlgorithms TriangleSetTopologyContainer TriangleSetTopologyModifier] -->
<RequiredPlugin name="Sofa.Component.Topology.Utility"/> <!-- Needed to use components [TopologicalChangeProcessor] -->
<RequiredPlugin name="Sofa.Component.Visual"/> <!-- Needed to use components [VisualStyle] -->
<RequiredPlugin name="Sofa.GL.Component.Rendering3D"/> <!-- Needed to use components [OglModel] -->
<DefaultAnimationLoop/>
<VisualStyle displayFlags="showBehaviorModels showVisual" />
<CollisionPipeline name="default0" verbose="0" />
<BruteForceBroadPhase/>
<BVHNarrowPhase/>
<CollisionResponse name="default1" response="PenalityContactForceField" />
<MinProximityIntersection name="Proximity" alarmDistance="0.8" contactDistance="0.5" />
<Node name="SquareGravity" gravity="0 -9.81 0">
<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" />
<MeshGmshLoader name="loader" filename="mesh/square3.msh" createSubelements="true"/>
<MechanicalObject name="mecaObj" src="@loader" template="Vec3" scale3d="10 10 10" restScale="1" />
<TriangleSetTopologyContainer src="@loader" name="Container" />
<TriangleSetTopologyModifier name="Modifier" />
<TriangleSetGeometryAlgorithms template="Vec3" name="GeomAlgo" />
<DiagonalMass name="default5" 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 name="default7" />
<Node >
<OglModel name="Visual" material="Default Diffuse 1 0 0 1 0.6 Ambient 1 0.2 0 0 1 Specular 0 1 0 0 1 Emissive 0 1 0 0 1 Shininess 0 45" />
<IdentityMapping name="default8" input="@.." output="@Visual" />
</Node>
<BoxROI template="Vec3" box="2 0 -1 8 -3 1" drawBoxes="1" position="@mecaObj.position" drawTriangles="1" triangles="@Container.triangles" name="trash" />
<TopologicalChangeProcessor listening="1" useDataInputs="1" trianglesToRemove="@trash.triangleIndices" timeToRemove="0.1" interval="0.05" />
</Node>
</Node>
def createScene(root_node):
root = root_node.addChild('root', gravity="0 -9 0", dt="0.01")
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.Engine.Select")
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.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.Utility")
root.addObject('RequiredPlugin', name="Sofa.Component.Visual")
root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
root.addObject('DefaultAnimationLoop', )
root.addObject('VisualStyle', displayFlags="showBehaviorModels showVisual")
root.addObject('CollisionPipeline', name="default0", verbose="0")
root.addObject('BruteForceBroadPhase', )
root.addObject('BVHNarrowPhase', )
root.addObject('CollisionResponse', name="default1", response="PenalityContactForceField")
root.addObject('MinProximityIntersection', name="Proximity", alarmDistance="0.8", contactDistance="0.5")
square_gravity = root.addChild('SquareGravity', gravity="0 -9.81 0")
square_gravity.addObject('EulerImplicitSolver', name="cg_odesolver", printLog="false", rayleighStiffness="0.1", rayleighMass="0.1")
square_gravity.addObject('CGLinearSolver', iterations="25", name="linear solver", tolerance="1.0e-9", threshold="1.0e-9")
square_gravity.addObject('MeshGmshLoader', name="loader", filename="mesh/square3.msh", createSubelements="true")
square_gravity.addObject('MechanicalObject', name="mecaObj", src="@loader", template="Vec3", scale3d="10 10 10", restScale="1")
square_gravity.addObject('TriangleSetTopologyContainer', src="@loader", name="Container")
square_gravity.addObject('TriangleSetTopologyModifier', name="Modifier")
square_gravity.addObject('TriangleSetGeometryAlgorithms', template="Vec3", name="GeomAlgo")
square_gravity.addObject('DiagonalMass', name="default5", 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', name="default7")
node = SquareGravity.addChild('node')
node.addObject('OglModel', name="Visual", material="Default Diffuse 1 0 0 1 0.6 Ambient 1 0.2 0 0 1 Specular 0 1 0 0 1 Emissive 0 1 0 0 1 Shininess 0 45")
node.addObject('IdentityMapping', name="default8", input="@..", output="@Visual")
square_gravity.addObject('BoxROI', template="Vec3", box="2 0 -1 8 -3 1", drawBoxes="1", position="@mecaObj.position", drawTriangles="1", triangles="@Container.triangles", name="trash")
square_gravity.addObject('TopologicalChangeProcessor', listening="1", useDataInputs="1", trianglesToRemove="@trash.triangleIndices", timeToRemove="0.1", interval="0.05")