PointProjectiveConstraint
Project particles to a point
Vec1d
Templates:
- Vec1d
Target: Sofa.Component.Constraint.Projective
namespace: sofa::component::constraint::projective
parents:
- ProjectiveConstraintSet
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 |
| group | ID of the group containing this constraint. This ID is used to specify which constraints are solved by which solver, by specifying in each solver which groups of constraints it should handle. | 0 |
| endTime | The constraint stops acting after the given value. Use a negative value for infinite constraints | -1 |
| indices | Indices of the points to project | |
| point | Target of the projection | |
| fixAll | filter all the DOF to implement a fixed object | 0 |
| Visualization | ||
| drawSize | Size of the rendered particles (0 -> point based rendering, >0 -> radius of spheres) | 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<Vec1d> |
| topology | link to the topology container | BaseMeshTopology |
Vec2d
Templates:
- Vec2d
Target: Sofa.Component.Constraint.Projective
namespace: sofa::component::constraint::projective
parents:
- ProjectiveConstraintSet
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 |
| group | ID of the group containing this constraint. This ID is used to specify which constraints are solved by which solver, by specifying in each solver which groups of constraints it should handle. | 0 |
| endTime | The constraint stops acting after the given value. Use a negative value for infinite constraints | -1 |
| indices | Indices of the points to project | |
| point | Target of the projection | |
| fixAll | filter all the DOF to implement a fixed object | 0 |
| Visualization | ||
| drawSize | Size of the rendered particles (0 -> point based rendering, >0 -> radius of spheres) | 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<Vec2d> |
| topology | link to the topology container | BaseMeshTopology |
Vec3d
Templates:
- Vec3d
Target: Sofa.Component.Constraint.Projective
namespace: sofa::component::constraint::projective
parents:
- ProjectiveConstraintSet
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 |
| group | ID of the group containing this constraint. This ID is used to specify which constraints are solved by which solver, by specifying in each solver which groups of constraints it should handle. | 0 |
| endTime | The constraint stops acting after the given value. Use a negative value for infinite constraints | -1 |
| indices | Indices of the points to project | |
| point | Target of the projection | |
| fixAll | filter all the DOF to implement a fixed object | 0 |
| Visualization | ||
| drawSize | Size of the rendered particles (0 -> point based rendering, >0 -> radius of spheres) | 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 |
Vec6d
Templates:
- Vec6d
Target: Sofa.Component.Constraint.Projective
namespace: sofa::component::constraint::projective
parents:
- ProjectiveConstraintSet
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 |
| group | ID of the group containing this constraint. This ID is used to specify which constraints are solved by which solver, by specifying in each solver which groups of constraints it should handle. | 0 |
| endTime | The constraint stops acting after the given value. Use a negative value for infinite constraints | -1 |
| indices | Indices of the points to project | |
| point | Target of the projection | |
| fixAll | filter all the DOF to implement a fixed object | 0 |
| Visualization | ||
| drawSize | Size of the rendered particles (0 -> point based rendering, >0 -> radius of spheres) | 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<Vec6d> |
| topology | link to the topology container | BaseMeshTopology |
Examples
PointProjectiveConstraint.scn
<?xml version="1.0"?>
<Node name="root" gravity="0 0 0" dt="0.05" >
<RequiredPlugin name="Sofa.Component.Constraint.Projective"/> <!-- Needed to use components [FixedProjectiveConstraint PointProjectiveConstraint] -->
<RequiredPlugin name="Sofa.Component.Engine.Select"/> <!-- Needed to use components [BoxROI] -->
<RequiredPlugin name="Sofa.Component.IO.Mesh"/> <!-- Needed to use components [GridMeshCreator] -->
<RequiredPlugin name="Sofa.Component.LinearSolver.Iterative"/> <!-- Needed to use components [CGLinearSolver] -->
<RequiredPlugin name="Sofa.Component.Mass"/> <!-- Needed to use components [UniformMass] -->
<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.Spring"/> <!-- Needed to use components [MeshSpringForceField] -->
<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.Component.Visual"/> <!-- Needed to use components [VisualStyle] -->
<VisualStyle displayFlags="hideVisualModels showBehavior" />
<DefaultAnimationLoop />
<DefaultVisualManagerLoop />
<Node name="Square" >
<EulerImplicitSolver name="Euler Implicit" printLog="0" rayleighStiffness="0.5" rayleighMass="0.5" vdamping="0" />
<CGLinearSolver template="GraphScattered" name="CG Solver" printLog="0" iterations="40" tolerance="1e-06" threshold="1e-10" />
<GridMeshCreator name="loader" resolution="5 5" trianglePattern="1" rotation="0 0 0 " scale="1 1 0" />
<MechanicalObject template="Vec3" name="mObject1" position="@loader.position" showIndices="false" showIndicesScale="0.001" />
<TriangleSetTopologyContainer name="Container" position="@loader.position" edges="@loader.edges" triangles="@loader.triangles" />
<TriangleSetTopologyModifier name="Modifier" />
<TriangleSetGeometryAlgorithms template="Vec3" name="GeomAlgo" />
<UniformMass totalMass="1" />
<MeshSpringForceField name="Springs" trianglesStiffness="1000" />
<BoxConstraint box="-0.05 -0.05 -0.05 0.05 0.05 0.05" drawBoxes="1" />
<BoxROI box="-0.05 -0.05 -0.05 0.05 1.05 0.05" drawBoxes="1" name="ProjectToPlane"/>
<PointProjectiveConstraint point="0 0 0" indices="@[-1].indices" drawSize="0.03" />
<Node name="Boundary Edges" >
<EdgeSetTopologyContainer name="Container" />
<EdgeSetTopologyModifier name="Modifier" />
<EdgeSetGeometryAlgorithms template="Vec3" name="GeomAlgo" drawEdges="1" />
<Triangle2EdgeTopologicalMapping name="Mapping" input="@../Container" output="@Container" />
<BoxROI box="0.95 -0.05 -0.05 1.05 1.05 0.05" drawBoxes="1" position="@../mObject1.rest_position" drawEdges="1" edges="@Container.edges" name="pressureBox" />
<EdgePressureForceField template="Vec3" name="edgePressureFF0" edgeIndices="@pressureBox.edgeIndices" binormal="0 0 1" p_intensity="-10" showForces="1" arrowSizeCoef="1"/>
</Node>
</Node>
</Node>
def createScene(root_node):
root = root_node.addChild('root', gravity="0 0 0", dt="0.05")
root.addObject('RequiredPlugin', name="Sofa.Component.Constraint.Projective")
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.Mass")
root.addObject('RequiredPlugin', name="Sofa.Component.MechanicalLoad")
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.Dynamic")
root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Mapping")
root.addObject('RequiredPlugin', name="Sofa.Component.Visual")
root.addObject('VisualStyle', displayFlags="hideVisualModels showBehavior")
root.addObject('DefaultAnimationLoop', )
root.addObject('DefaultVisualManagerLoop', )
square = root.addChild('Square')
square.addObject('EulerImplicitSolver', name="Euler Implicit", printLog="0", rayleighStiffness="0.5", rayleighMass="0.5", vdamping="0")
square.addObject('CGLinearSolver', template="GraphScattered", name="CG Solver", printLog="0", iterations="40", tolerance="1e-06", threshold="1e-10")
square.addObject('GridMeshCreator', name="loader", resolution="5 5", trianglePattern="1", rotation="0 0 0 ", scale="1 1 0")
square.addObject('MechanicalObject', template="Vec3", name="mObject1", position="@loader.position", showIndices="false", showIndicesScale="0.001")
square.addObject('TriangleSetTopologyContainer', name="Container", position="@loader.position", edges="@loader.edges", triangles="@loader.triangles")
square.addObject('TriangleSetTopologyModifier', name="Modifier")
square.addObject('TriangleSetGeometryAlgorithms', template="Vec3", name="GeomAlgo")
square.addObject('UniformMass', totalMass="1")
square.addObject('MeshSpringForceField', name="Springs", trianglesStiffness="1000")
square.addObject('BoxConstraint', box="-0.05 -0.05 -0.05 0.05 0.05 0.05", drawBoxes="1")
square.addObject('BoxROI', box="-0.05 -0.05 -0.05 0.05 1.05 0.05", drawBoxes="1", name="ProjectToPlane")
square.addObject('PointProjectiveConstraint', point="0 0 0", indices="@[-1].indices", drawSize="0.03")
boundary__edges = Square.addChild('Boundary Edges')
boundary__edges.addObject('EdgeSetTopologyContainer', name="Container")
boundary__edges.addObject('EdgeSetTopologyModifier', name="Modifier")
boundary__edges.addObject('EdgeSetGeometryAlgorithms', template="Vec3", name="GeomAlgo", drawEdges="1")
boundary__edges.addObject('Triangle2EdgeTopologicalMapping', name="Mapping", input="@../Container", output="@Container")
boundary__edges.addObject('BoxROI', box="0.95 -0.05 -0.05 1.05 1.05 0.05", drawBoxes="1", position="@../mObject1.rest_position", drawEdges="1", edges="@Container.edges", name="pressureBox")
boundary__edges.addObject('EdgePressureForceField', template="Vec3", name="edgePressureFF0", edgeIndices="@pressureBox.edgeIndices", binormal="0 0 1", p_intensity="-10", showForces="1", arrowSizeCoef="1")