Mesh2PointTopologicalMapping

This class maps any mesh primitive (point, edge, triangle...) into a point using a relative position from the primitive

Target: Sofa.Component.Mapping.Linear

namespace: sofa::component::mapping::linear

parents:

• TopologicalMapping

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
copyEdges	Activate mapping of input edges into the output topology (requires at least one item in pointBaryCoords)	0
copyTriangles	Activate mapping of input triangles into the output topology (requires at least one item in pointBaryCoords)	0
copyTetrahedra	Activate mapping of input tetrahedra into the output topology (requires at least one item in pointBaryCoords)	0
BaryCoords
pointBaryCoords	Coordinates for the points of the output topology created from the points of the input topology
edgeBaryCoords	Coordinates for the points of the output topology created from the edges of the input topology
triangleBaryCoords	Coordinates for the points of the output topology created from the triangles of the input topology
quadBaryCoords	Coordinates for the points of the output topology created from the quads of the input topology
tetraBaryCoords	Coordinates for the points of the output topology created from the tetra of the input topology
hexaBaryCoords	Coordinates for the points of the output topology created from the hexa of the input topology

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
input	Input topology to map	BaseMeshTopology
output	Output topology to map	BaseMeshTopology

Examples

Mesh2PointTopologicalMapping.scn

XMLPython

<?xml version="1.0" ?>
<Node name="root" dt="0.05" showBoundingTree="0" gravity="0 0 0">
    <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 [DiscreteIntersection] -->
    <RequiredPlugin name="Sofa.Component.Collision.Geometry"/> <!-- Needed to use components [SphereCollisionModel] -->
    <RequiredPlugin name="Sofa.Component.Collision.Response.Contact"/> <!-- Needed to use components [CollisionResponse] -->
    <RequiredPlugin name="Sofa.Component.Constraint.Projective"/> <!-- Needed to use components [FixedProjectiveConstraint] -->
    <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 [Mesh2PointTopologicalMapping] -->
    <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 [TetrahedralCorotationalFEMForceField] -->
    <RequiredPlugin name="Sofa.Component.StateContainer"/> <!-- Needed to use components [MechanicalObject] -->
    <RequiredPlugin name="Sofa.Component.Topology.Container.Dynamic"/> <!-- Needed to use components [PointSetTopologyContainer TetrahedronSetGeometryAlgorithms TetrahedronSetTopologyContainer TetrahedronSetTopologyModifier] -->
    <RequiredPlugin name="Sofa.Component.Visual"/> <!-- Needed to use components [VisualStyle] -->
    <VisualStyle displayFlags="showBehaviorModels showForceFields showCollisionModels showVisual" />
    <CollisionPipeline verbose="0" name="CollisionPipeline" />
    <BruteForceBroadPhase/>
    <BVHNarrowPhase/>
    <CollisionResponse response="PenalityContactForceField" name="collision response" />
    <DiscreteIntersection/>
    <DefaultAnimationLoop/>

    <Node name="MeshTopology">
        <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="meshLoader0" filename="mesh/liver.msh" />
        <TetrahedronSetTopologyContainer name="Container1" src="@meshLoader0" />
        <TetrahedronSetTopologyModifier />
        <TetrahedronSetGeometryAlgorithms name="GeomAlgo" />
        <MechanicalObject name="dofs" />
        <FixedProjectiveConstraint name="FixedProjectiveConstraint" indices="3 39 64" />
        <DiagonalMass massDensity="1" name="computed using mass density" />
        <TetrahedralCorotationalFEMForceField name="FEM" youngModulus="3000" poissonRatio="0.3" computeGlobalMatrix="false" method="large" />
        <Node name="PointSetTopology">
            <PointSetTopologyContainer name="Container2" />
            <!--<PointSetTopologyModifier/>-->
            <!--<Mesh2PointTopologicalMapping input="@Container1" output="@Container2" pointBaryCoords="0 0 0" tetraBaryCoords="0.25 0.25 0.25" />-->
            <Mesh2PointTopologicalMapping input="@Container1" output="@Container2" pointBaryCoords="0 0 0" edgeBaryCoords="0.5 0.5 0.0" />
            <MechanicalObject />
            <!--<Mesh2PointMechanicalMapping/>-->
            <SphereCollisionModel radius="0.25" />
        </Node>
    </Node>
</Node>

def createScene(root_node):

   root = root_node.addChild('root', dt="0.05", showBoundingTree="0", gravity="0 0 0")

   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.Constraint.Projective")
   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.StateContainer")
   root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Dynamic")
   root.addObject('RequiredPlugin', name="Sofa.Component.Visual")
   root.addObject('VisualStyle', displayFlags="showBehaviorModels showForceFields showCollisionModels showVisual")
   root.addObject('CollisionPipeline', verbose="0", name="CollisionPipeline")
   root.addObject('BruteForceBroadPhase', )
   root.addObject('BVHNarrowPhase', )
   root.addObject('CollisionResponse', response="PenalityContactForceField", name="collision response")
   root.addObject('DiscreteIntersection', )
   root.addObject('DefaultAnimationLoop', )

   mesh_topology = root.addChild('MeshTopology')

   mesh_topology.addObject('EulerImplicitSolver', name="cg_odesolver", printLog="false", rayleighStiffness="0.1", rayleighMass="0.1")
   mesh_topology.addObject('CGLinearSolver', iterations="25", name="linear solver", tolerance="1.0e-9", threshold="1.0e-9")
   mesh_topology.addObject('MeshGmshLoader', name="meshLoader0", filename="mesh/liver.msh")
   mesh_topology.addObject('TetrahedronSetTopologyContainer', name="Container1", src="@meshLoader0")
   mesh_topology.addObject('TetrahedronSetTopologyModifier', )
   mesh_topology.addObject('TetrahedronSetGeometryAlgorithms', name="GeomAlgo")
   mesh_topology.addObject('MechanicalObject', name="dofs")
   mesh_topology.addObject('FixedProjectiveConstraint', name="FixedProjectiveConstraint", indices="3 39 64")
   mesh_topology.addObject('DiagonalMass', massDensity="1", name="computed using mass density")
   mesh_topology.addObject('TetrahedralCorotationalFEMForceField', name="FEM", youngModulus="3000", poissonRatio="0.3", computeGlobalMatrix="false", method="large")

   point_set_topology = MeshTopology.addChild('PointSetTopology')

   point_set_topology.addObject('PointSetTopologyContainer', name="Container2")
   point_set_topology.addObject('Mesh2PointTopologicalMapping', input="@Container1", output="@Container2", pointBaryCoords="0 0 0", edgeBaryCoords="0.5 0.5 0.0")
   point_set_topology.addObject('MechanicalObject', )
   point_set_topology.addObject('SphereCollisionModel', radius="0.25")