MeshSplittingEngine
Engine breaking a mesh in multiple parts, based on selected vertices or cells.
Vec3d
Templates:
- Vec3d
Target: Sofa.Component.Engine.Select
namespace: sofa::component::engine::select
parents:
- DataEngine
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 |
| position | input vertices | |
| edges | input edges | |
| triangles | input triangles | |
| quads | input quads | |
| tetrahedra | input tetrahedra | |
| hexahedra | input hexahedra | |
| nbInputs | Number of input vectors | 0 |
| indexPairs | couples for input vertices: ROI index + index in the ROI | |
| Outputs | ||
| position1 | output vertices(1) | |
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 |
Examples
MeshSplittingEngine.scn
<?xml version="1.0" ?>
<!-- MeshSplittingEngine Example -->
<Node name="root" dt="0.1">
<RequiredPlugin name="Sofa.Component.Constraint.Projective"/> <!-- Needed to use components [FixedProjectiveConstraint] -->
<RequiredPlugin name="Sofa.Component.Engine.Select"/> <!-- Needed to use components [BoxROI MeshSplittingEngine] -->
<RequiredPlugin name="Sofa.Component.IO.Mesh"/> <!-- Needed to use components [MeshGmshLoader MeshOBJLoader] -->
<RequiredPlugin name="Sofa.Component.LinearSolver.Iterative"/> <!-- Needed to use components [CGLinearSolver] -->
<RequiredPlugin name="Sofa.Component.Mapping.Linear"/> <!-- Needed to use components [BarycentricMapping SubsetMultiMapping] -->
<RequiredPlugin name="Sofa.Component.Mapping.NonLinear"/> <!-- Needed to use components [RigidMapping] -->
<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.Setting"/> <!-- Needed to use components [BackgroundSetting] -->
<RequiredPlugin name="Sofa.Component.SolidMechanics.FEM.Elastic"/> <!-- Needed to use components [TetrahedronFEMForceField] -->
<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.Visual"/> <!-- Needed to use components [VisualStyle] -->
<RequiredPlugin name="Sofa.GL.Component.Rendering3D"/> <!-- Needed to use components [OglModel] -->
<VisualStyle displayFlags="showBehavior showVisual" />
<BackgroundSetting color="1 1 1"/>
<DefaultAnimationLoop/>
<MeshGmshLoader name="loader" filename="mesh/torus_low_res.msh" />
<MeshTopology name="mesh" src="@loader" />
<BoxROI template="Vec3" box="0 -2 0 5 2 5" src="@mesh" name="roi" drawBoxes="true"/>
<MeshSplittingEngine name="split" src="@loader" nbInputs="1" tetrahedronIndices1="@roi.tetrahedronIndices" printLog="true"/>
<Node name="rigid">
<EulerImplicitSolver rayleighStiffness="0.1" rayleighMass="0.1" />
<CGLinearSolver iterations="50" threshold="1e-15" tolerance="1e-15" printLog="0" />
<MechanicalObject name="rigidframe" template="Rigid3" position="1 0 1 0 0 0 1" />
<UniformMass totalMass="1.0"/>
<FixedProjectiveConstraint indices="0"/>
<Node name="rigidmapped points">
<MechanicalObject position="@/split.position1"/>
<RigidMapping globalToLocalCoords="1"/>
<Node name="free points">
<MechanicalObject position="@/split.position2" showObject="true"/>
<UniformMass totalMass="1" />
<Node name="multimapped full object">
<MeshTopology name="mesh" src="@/mesh" />
<MechanicalObject src="@mesh" />
<SubsetMultiMapping template = "Vec3,Vec3" input="@../../ @../" output="@./" indexPairs="@/split.indexPairs"/>
<TetrahedronFEMForceField youngModulus="100" poissonRatio="0.3"/>
<Node name="Visu">
<MeshOBJLoader name="meshLoader_0" filename="mesh/torus.obj" handleSeams="1" />
<OglModel name="Visual" src="@meshLoader_0" color="5E-1 5E-1 5E-1 5E-1" />
<BarycentricMapping />
</Node>
</Node>
</Node>
</Node>
</Node>
</Node>
def createScene(root_node):
root = root_node.addChild('root', dt="0.1")
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.Mapping.Linear")
root.addObject('RequiredPlugin', name="Sofa.Component.Mapping.NonLinear")
root.addObject('RequiredPlugin', name="Sofa.Component.Mass")
root.addObject('RequiredPlugin', name="Sofa.Component.ODESolver.Backward")
root.addObject('RequiredPlugin', name="Sofa.Component.Setting")
root.addObject('RequiredPlugin', name="Sofa.Component.SolidMechanics.FEM.Elastic")
root.addObject('RequiredPlugin', name="Sofa.Component.StateContainer")
root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Constant")
root.addObject('RequiredPlugin', name="Sofa.Component.Visual")
root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
root.addObject('VisualStyle', displayFlags="showBehavior showVisual")
root.addObject('BackgroundSetting', color="1 1 1")
root.addObject('DefaultAnimationLoop', )
root.addObject('MeshGmshLoader', name="loader", filename="mesh/torus_low_res.msh")
root.addObject('MeshTopology', name="mesh", src="@loader")
root.addObject('BoxROI', template="Vec3", box="0 -2 0 5 2 5", src="@mesh", name="roi", drawBoxes="true")
root.addObject('MeshSplittingEngine', name="split", src="@loader", nbInputs="1", tetrahedronIndices1="@roi.tetrahedronIndices", printLog="true")
rigid = root.addChild('rigid')
rigid.addObject('EulerImplicitSolver', rayleighStiffness="0.1", rayleighMass="0.1")
rigid.addObject('CGLinearSolver', iterations="50", threshold="1e-15", tolerance="1e-15", printLog="0")
rigid.addObject('MechanicalObject', name="rigidframe", template="Rigid3", position="1 0 1 0 0 0 1")
rigid.addObject('UniformMass', totalMass="1.0")
rigid.addObject('FixedProjectiveConstraint', indices="0")
rigidmapped_points = rigid.addChild('rigidmapped points')
rigidmapped_points.addObject('MechanicalObject', position="@/split.position1")
rigidmapped_points.addObject('RigidMapping', globalToLocalCoords="1")
free_points = rigidmapped points.addChild('free points')
free_points.addObject('MechanicalObject', position="@/split.position2", showObject="true")
free_points.addObject('UniformMass', totalMass="1")
multimapped_full_object = free points.addChild('multimapped full object')
multimapped_full_object.addObject('MeshTopology', name="mesh", src="@/mesh")
multimapped_full_object.addObject('MechanicalObject', src="@mesh")
multimapped_full_object.addObject('SubsetMultiMapping', template="Vec3,Vec3", input="@../../ @../", output="@./", indexPairs="@/split.indexPairs")
multimapped_full_object.addObject('TetrahedronFEMForceField', youngModulus="100", poissonRatio="0.3")
visu = multimapped full object.addChild('Visu')
visu.addObject('MeshOBJLoader', name="meshLoader_0", filename="mesh/torus.obj", handleSeams="1")
visu.addObject('OglModel', name="Visual", src="@meshLoader_0", color="5E-1 5E-1 5E-1 5E-1")
visu.addObject('BarycentricMapping', )