MeshROI

Find the primitives (vertex/edge/triangle/tetrahedron) inside a given mesh.

Templates:

• Rigid3d
• Vec3d
• Vec6d

Target: Sofa.Component.Engine.Select

namespace: sofa::component::engine::select

parents:

• BaseROI

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
computeEdges	If true, will compute edge list and index list inside the ROI.	1
computeTriangles	If true, will compute triangle list and index list inside the ROI.	1
computeQuads	If true, will compute quad list and index list inside the ROI.	1
computeTetrahedra	If true, will compute tetrahedra list and index list inside the ROI.	1
computeHexahedra	If true, will compute hexahedra list and index list inside the ROI.	1
strict	If true, an element is inside the box if all of its nodes are inside. If False, only the center point of the element is checked.	1
doUpdate	If true, updates the selection at the beginning of simulation steps.	1
computeMeshROI	Compute with the mesh (not only bounding box)	1
Inputs
position	Rest position coordinates of the degrees of freedom. If empty the positions from a MechanicalObject then a MeshLoader are searched in the current context. If none are found the parent's context is searched for MechanicalObject.
edges	Edge Topology
triangles	Triangle Topology
quads	Quad Topology
tetrahedra	Tetrahedron Topology
hexahedra	Hexahedron Topology
ROIposition	ROI position coordinates of the degrees of freedom
ROIedges	ROI Edge Topology
ROItriangles	ROI Triangle Topology
Outputs
indices	Indices of the points contained in the ROI
edgeIndices	Indices of the edges contained in the ROI
triangleIndices	Indices of the triangles contained in the ROI
quadIndices	Indices of the quad contained in the ROI
tetrahedronIndices	Indices of the tetrahedra contained in the ROI
hexahedronIndices	Indices of the hexahedra contained in the ROI
pointsInROI	Points contained in the ROI
edgesInROI	Edges contained in the ROI
trianglesInROI	Triangles contained in the ROI
quadsInROI	Quad contained in the ROI
tetrahedraInROI	Tetrahedra contained in the ROI
hexahedraInROI	Hexahedra contained in the ROI
nbIndices	Number of selected indices
pointsOutROI	Points not contained in the ROI
edgesOutROI	Edges not contained in the ROI
trianglesOutROI	Triangles not contained in the ROI
tetrahedraOutROI	Tetrahedra not contained in the ROI
indicesOut	Indices of the points not contained in the ROI
edgeOutIndices	Indices of the edges not contained in the ROI
triangleOutIndices	Indices of the triangles not contained in the ROI
tetrahedronOutIndices	Indices of the tetrahedra not contained in the ROI
box	Bounding box defined by xmin,ymin,zmin, xmax,ymax,zmax
Visualization
drawROI	Draw the ROI.	0
drawPoints	Draw Points.	0
drawEdges	Draw Edges.	0
drawTriangles	Draw Triangles.	0
drawQuads	Draw Quads.	0
drawTetrahedra	Draw Tetrahedra.	0
drawHexahedra	Draw Tetrahedra.	0
drawSize	rendering size for ROI and topological elements	1
drawOut	Draw the data not contained in the ROI	0
drawBox	Draw the Bounding box around the mesh used for the ROI	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

Examples

MeshROI.scn

XMLPython

<Node name="root" gravity="0 -9 1" dt="0.05">
    <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.Response.Contact"/> <!-- Needed to use components [CollisionResponse] -->
    <RequiredPlugin name="Sofa.Component.Engine.Select"/> <!-- Needed to use components [MeshROI] -->
    <RequiredPlugin name="Sofa.Component.IO.Mesh"/> <!-- Needed to use components [MeshOBJLoader MeshVTKLoader] -->
    <RequiredPlugin name="Sofa.Component.LinearSolver.Iterative"/> <!-- Needed to use components [CGLinearSolver] -->
    <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 [TetrahedronSetGeometryAlgorithms TetrahedronSetTopologyContainer TetrahedronSetTopologyModifier TriangleSetTopologyModifier] -->
    <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 showWireframe" />
    <CollisionPipeline />
    <BruteForceBroadPhase/>
    <BVHNarrowPhase/>
    <CollisionResponse response="PenalityContactForceField" />
    <MinProximityIntersection  alarmDistance="0.8" contactDistance="0.5" />
    <Node >
        <EulerImplicitSolver   rayleighStiffness="0.1" rayleighMass="0.1" />
        <CGLinearSolver iterations="25" tolerance="1e-05" threshold="1e-05" />
        <MeshVTKLoader name="loader" filename="mesh/Ossicles.vtu" />
        <MechanicalObject src="@loader"  name="mecaObj" scale3d="1 1 1" restScale="1" />


        <TetrahedronSetTopologyContainer name="Container"  src="@loader"/>
        <TriangleSetTopologyModifier name="ModifierTri" />
        <TetrahedronSetTopologyModifier name="ModifierTetra"/>
        <TetrahedronSetGeometryAlgorithms  name="GeomAlgo"/>
        <DiagonalMass  massDensity="0.15" />

        <TetrahedralCorotationalFEMForceField name="FEM" youngModulus="1e10" poissonRatio="0.3" method="large" />

        <Node name="MeshROI"  >
            <MeshOBJLoader name="ROIloader" filename="mesh/malleus.obj" scale3d="1 1 1" translation="0 0 0" rotation="0 0 0"/>
            <OglModel />
            <MeshROI name="ROIm"  drawMesh="0" drawBox="0" drawEdges="0" drawTriangles="1" drawTetrahedra="1" drawOut="0" computeMeshROI="1"  doUpdate="0"
               position="@../mecaObj.position" tetrahedra="@../loader.tetrahedra" ROIposition="@ROIloader.position" ROItriangles="@ROIloader.triangles" />
        </Node>
    </Node>
</Node>

def createScene(root_node):

   root = root_node.addChild('root', gravity="0 -9 1", dt="0.05")

   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.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.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('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
   root.addObject('DefaultAnimationLoop', )
   root.addObject('VisualStyle', displayFlags="showBehaviorModels showWireframe")
   root.addObject('CollisionPipeline', )
   root.addObject('BruteForceBroadPhase', )
   root.addObject('BVHNarrowPhase', )
   root.addObject('CollisionResponse', response="PenalityContactForceField")
   root.addObject('MinProximityIntersection', alarmDistance="0.8", contactDistance="0.5")

   node = root.addChild('node')

   node.addObject('EulerImplicitSolver', rayleighStiffness="0.1", rayleighMass="0.1")
   node.addObject('CGLinearSolver', iterations="25", tolerance="1e-05", threshold="1e-05")
   node.addObject('MeshVTKLoader', name="loader", filename="mesh/Ossicles.vtu")
   node.addObject('MechanicalObject', src="@loader", name="mecaObj", scale3d="1 1 1", restScale="1")
   node.addObject('TetrahedronSetTopologyContainer', name="Container", src="@loader")
   node.addObject('TriangleSetTopologyModifier', name="ModifierTri")
   node.addObject('TetrahedronSetTopologyModifier', name="ModifierTetra")
   node.addObject('TetrahedronSetGeometryAlgorithms', name="GeomAlgo")
   node.addObject('DiagonalMass', massDensity="0.15")
   node.addObject('TetrahedralCorotationalFEMForceField', name="FEM", youngModulus="1e10", poissonRatio="0.3", method="large")

   mesh_roi = node.addChild('MeshROI')

   mesh_roi.addObject('MeshOBJLoader', name="ROIloader", filename="mesh/malleus.obj", scale3d="1 1 1", translation="0 0 0", rotation="0 0 0")
   mesh_roi.addObject('OglModel', )
   mesh_roi.addObject('MeshROI', name="ROIm", drawMesh="0", drawBox="0", drawEdges="0", drawTriangles="1", drawTetrahedra="1", drawOut="0", computeMeshROI="1", doUpdate="0", position="@../mecaObj.position", tetrahedra="@../loader.tetrahedra", ROIposition="@ROIloader.position", ROItriangles="@ROIloader.triangles")