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MergePoints

Merge 2 coordinate vectors.

Templates:

  • Rigid2d
  • Rigid3d
  • Vec1d
  • Vec2d
  • Vec3d

Target: Sofa.Component.Engine.Generate

namespace: sofa::component::engine::generate

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 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
noUpdate do not update the output at each time step (false) 0
Inputs
position1 position coordinates of the degrees of freedom of the first object
position2 Rest position coordinates of the degrees of freedom of the second object
mappingX2 Mapping of indices to inject position2 inside position1 vertex buffer
Outputs
indices1 Indices of the points of the first object
indices2 Indices of the points of the second object
points position coordinates resulting from the merge
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

MergePoints.scn

<?xml version="1.0" ?>
<Node name="root" dt="0.05" showBoundingTree="0" gravity="0 -9 1">
    <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.Constraint.Lagrangian.Correction"/> <!-- Needed to use components [UncoupledConstraintCorrection] -->
    <RequiredPlugin name="Sofa.Component.Constraint.Projective"/> <!-- Needed to use components [FixedProjectiveConstraint] -->
    <RequiredPlugin name="Sofa.Component.Engine.Generate"/> <!-- Needed to use components [MergePoints] -->
    <RequiredPlugin name="Sofa.Component.Engine.Select"/> <!-- Needed to use components [BoxROI SubsetTopology] -->
    <RequiredPlugin name="Sofa.Component.IO.Mesh"/> <!-- Needed to use components [MeshOBJLoader] -->
    <RequiredPlugin name="Sofa.Component.LinearSolver.Iterative"/> <!-- Needed to use components [CGLinearSolver] -->
    <RequiredPlugin name="Sofa.Component.Mapping.Linear"/> <!-- Needed to use components [BarycentricMapping] -->
    <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.SolidMechanics.FEM.Elastic"/> <!-- Needed to use components [HexahedronFEMForceField] -->
    <RequiredPlugin name="Sofa.Component.StateContainer"/> <!-- Needed to use components [MechanicalObject] -->
    <RequiredPlugin name="Sofa.Component.Topology.Container.Dynamic"/> <!-- Needed to use components [QuadSetGeometryAlgorithms QuadSetTopologyContainer QuadSetTopologyModifier] -->
    <RequiredPlugin name="Sofa.Component.Topology.Container.Grid"/> <!-- Needed to use components [SparseGridRamificationTopology] -->
    <RequiredPlugin name="Sofa.Component.Visual"/> <!-- Needed to use components [VisualStyle] -->
    <RequiredPlugin name="Sofa.GL.Component.Rendering3D"/> <!-- Needed to use components [OglModel] -->
    <RequiredPlugin name="Sofa.GL.Component.Shader"/> <!-- Needed to use components [LightManager SpotLight] -->

    <DefaultAnimationLoop/>
    <VisualStyle displayFlags="showVisual showBehaviorModels" />
    <CollisionPipeline verbose="0" />
    <BruteForceBroadPhase/>
    <BVHNarrowPhase/>
    <CollisionResponse response="PenalityContactForceField" />
    <MinProximityIntersection name="Proximity" alarmDistance="0.8" contactDistance="0.5" />

    <LightManager />
    <SpotLight name="light1" color="1 1 1" position="0 80 25" direction="0 -1 -0.8" cutoff="30" exponent="1" />
    <SpotLight name="light2" color="1 1 1" position="0 40 100" direction="0 0 -1" cutoff="30" exponent="1" />

    <Node name="mesh">
        <MeshOBJLoader name="meshLoader" filename="mesh/raptor_35kp.obj"/>  
        <SubsetTopology template="Vec3" name="subset_head" box="-2 4 4 2 8 8" drawROI="1" src="@meshLoader" rest_position="@meshLoader.position" localIndices="1"/>

        <Node name="simu_head">
            <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" />
            <SparseGridRamificationTopology position="@../subset_head.pointsInROI" n="10 10 10" nbVirtualFinerLevels="0" finestConnectivity="0" />          
            <MechanicalObject template="Vec3" name="mecaObj2"  />
            <BoxConstraint box="-2 4 4 2 8 4.5" drawBoxes="0"/>
            <UniformMass totalMass="50.0" />
            <HexahedronFEMForceField name="FEM" youngModulus="4000.0" poissonRatio="0.30" method="large" updateStiffnessMatrix="false" printLog="0" 
            drawing="1"/>            
            <UncoupledConstraintCorrection />

            <Node name="Visu">  
                <QuadSetTopologyContainer  name="Container" 
                    position="@../../subset_head.pointsInROI"
                    quads="@../../subset_head.quadsInROI"
                     />
                <QuadSetTopologyModifier   name="Modifier" />
                <QuadSetGeometryAlgorithms name="GeomAlgo"   template="Vec3" drawEdges="0" />                           
                <MechanicalObject name="CollisModel" />
                <BarycentricMapping input="@.." output="@CollisModel" />
            </Node>  
        </Node>

        <MergePoints template="Vec3" name="merge_subsets" position1="@meshLoader.position"
            position2="@simu_head/Visu/CollisModel.position" mappingX2="@subset_head.indices"/>

       <Node>
            <OglModel name="Visual" position="@../merge_subsets.points" 
                src="@../meshLoader" texturename="textures/snakeskin.png" scaleTex="20 20"/>
        </Node>
    </Node>
</Node>
def createScene(root_node):

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

   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.Constraint.Lagrangian.Correction")
   root.addObject('RequiredPlugin', name="Sofa.Component.Constraint.Projective")
   root.addObject('RequiredPlugin', name="Sofa.Component.Engine.Generate")
   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.StateContainer")
   root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Dynamic")
   root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Grid")
   root.addObject('RequiredPlugin', name="Sofa.Component.Visual")
   root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
   root.addObject('RequiredPlugin', name="Sofa.GL.Component.Shader")
   root.addObject('DefaultAnimationLoop', )
   root.addObject('VisualStyle', displayFlags="showVisual showBehaviorModels")
   root.addObject('CollisionPipeline', verbose="0")
   root.addObject('BruteForceBroadPhase', )
   root.addObject('BVHNarrowPhase', )
   root.addObject('CollisionResponse', response="PenalityContactForceField")
   root.addObject('MinProximityIntersection', name="Proximity", alarmDistance="0.8", contactDistance="0.5")
   root.addObject('LightManager', )
   root.addObject('SpotLight', name="light1", color="1 1 1", position="0 80 25", direction="0 -1 -0.8", cutoff="30", exponent="1")
   root.addObject('SpotLight', name="light2", color="1 1 1", position="0 40 100", direction="0 0 -1", cutoff="30", exponent="1")

   mesh = root.addChild('mesh')

   mesh.addObject('MeshOBJLoader', name="meshLoader", filename="mesh/raptor_35kp.obj")
   mesh.addObject('SubsetTopology', template="Vec3", name="subset_head", box="-2 4 4 2 8 8", drawROI="1", src="@meshLoader", rest_position="@meshLoader.position", localIndices="1")

   simu_head = mesh.addChild('simu_head')

   simu_head.addObject('EulerImplicitSolver', name="cg_odesolver", printLog="false", rayleighStiffness="0.1", rayleighMass="0.1")
   simu_head.addObject('CGLinearSolver', iterations="25", name="linear solver", tolerance="1.0e-9", threshold="1.0e-9")
   simu_head.addObject('SparseGridRamificationTopology', position="@../subset_head.pointsInROI", n="10 10 10", nbVirtualFinerLevels="0", finestConnectivity="0")
   simu_head.addObject('MechanicalObject', template="Vec3", name="mecaObj2")
   simu_head.addObject('BoxConstraint', box="-2 4 4 2 8 4.5", drawBoxes="0")
   simu_head.addObject('UniformMass', totalMass="50.0")
   simu_head.addObject('HexahedronFEMForceField', name="FEM", youngModulus="4000.0", poissonRatio="0.30", method="large", updateStiffnessMatrix="false", printLog="0", drawing="1")
   simu_head.addObject('UncoupledConstraintCorrection', )

   visu = simu_head.addChild('Visu')

   visu.addObject('QuadSetTopologyContainer', name="Container", position="@../../subset_head.pointsInROI", quads="@../../subset_head.quadsInROI")
   visu.addObject('QuadSetTopologyModifier', name="Modifier")
   visu.addObject('QuadSetGeometryAlgorithms', name="GeomAlgo", template="Vec3", drawEdges="0")
   visu.addObject('MechanicalObject', name="CollisModel")
   visu.addObject('BarycentricMapping', input="@..", output="@CollisModel")

   mesh.addObject('MergePoints', template="Vec3", name="merge_subsets", position1="@meshLoader.position", position2="@simu_head/Visu/CollisModel.position", mappingX2="@subset_head.indices")

   node = mesh.addChild('node')

   node.addObject('OglModel', name="Visual", position="@../merge_subsets.points", src="@../meshLoader", texturename="textures/snakeskin.png", scaleTex="20 20")