MeshBarycentricMapperEngine

This class maps a set of points in a topological model and provide barycentric coordinates

Templates:

• 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 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
computeLinearInterpolation	if true, computes a linear interpolation (debug)	0
linearInterpolationIndices	Indices of a linear interpolation
linearInterpolationValues	Values of a linear interpolation
Inputs
inputPositions	Initial positions of the master points
mappedPointPositions	Initial positions of the points to be mapped
Outputs
barycentricPositions	Output : Barycentric positions of the mapped points
tableElements	Output : Table that provides the index of the element to which each input point belongs

Links:

Name	Description
context	Graph Node containing this object (or BaseContext::getDefault() if no graph is used)
slaves	Sub-objects used internally by this object
master	nullptr for regular objects, or master object for which this object is one sub-objects
topology	Name of the master topology

Examples

Component/Engine/Generate/MeshBarycentricMapperEngine.scn

XMLPython

<?xml version="1.0" ?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="Sofa.Component.Engine.Generate"/> <!-- Needed to use components [MeshBarycentricMapperEngine] -->
    <RequiredPlugin name="Sofa.Component.IO.Mesh"/> <!-- Needed to use components [MeshOBJLoader] -->
    <RequiredPlugin name="Sofa.Component.Topology.Container.Constant"/> <!-- Needed to use components [MeshTopology] -->
    <RequiredPlugin name="Sofa.Component.Topology.Container.Dynamic"/> <!-- Needed to use components [TetrahedronSetTopologyContainer TetrahedronSetTopologyModifier] -->
    <RequiredPlugin name="Sofa.Component.Topology.Container.Grid"/> <!-- Needed to use components [RegularGridTopology] -->
    <RequiredPlugin name="Sofa.Component.Topology.Mapping"/> <!-- Needed to use components [Hexa2TetraTopologicalMapping] -->
    <RequiredPlugin name="Sofa.GL.Component.Rendering3D"/> <!-- Needed to use components [OglModel] -->
    <RegularGridTopology name="GridTopology" nx="10" ny="10" nz="10" min="-10 -10 -10" max="10 10 10" drawEdges="1"/>

    <DefaultAnimationLoop/>
    <Node name="Tetra-Topo">
        <TetrahedronSetTopologyContainer name="Container" checkTopology="1"/>
        <TetrahedronSetTopologyModifier name="Modifier" />
        <Hexa2TetraTopologicalMapping name="default28" input="@../GridTopology" output="@Container" />
        <Node name="Liver">
            <MeshOBJLoader name="meshLoader" filename="mesh/liver.obj" />
            <MeshTopology src="@meshLoader" name="LiverTopo"  />
            <MeshBarycentricMapperEngine inputPositions="@../../GridTopology.position" mappedPointPositions="@./LiverTopo.position" topology="@../Container"/>
            <OglModel name="Visual" src="@meshLoader" color='1.0 0.0 0.0 1' />
        </Node>
    </Node>
</Node>

def createScene(rootNode):

    root = rootNode.addChild('root', dt="0.02")
    root.addObject('RequiredPlugin', name="Sofa.Component.Engine.Generate")
    root.addObject('RequiredPlugin', name="Sofa.Component.IO.Mesh")
    root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Constant")
    root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Dynamic")
    root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Grid")
    root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Mapping")
    root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
    root.addObject('RegularGridTopology', name="GridTopology", nx="10", ny="10", nz="10", min="-10 -10 -10", max="10 10 10", drawEdges="1")
    root.addObject('DefaultAnimationLoop')

    Tetra-Topo = root.addChild('Tetra-Topo')
    Tetra-Topo.addObject('TetrahedronSetTopologyContainer', name="Container", checkTopology="1")
    Tetra-Topo.addObject('TetrahedronSetTopologyModifier', name="Modifier")
    Tetra-Topo.addObject('Hexa2TetraTopologicalMapping', name="default28", input="@../GridTopology", output="@Container")

    Liver = Tetra-Topo.addChild('Liver')
    Liver.addObject('MeshOBJLoader', name="meshLoader", filename="mesh/liver.obj")
    Liver.addObject('MeshTopology', src="@meshLoader", name="LiverTopo")
    Liver.addObject('MeshBarycentricMapperEngine', inputPositions="@../../GridTopology.position", mappedPointPositions="@./LiverTopo.position", topology="@../Container")
    Liver.addObject('OglModel', name="Visual", src="@meshLoader", color="1.0 0.0 0.0 1")