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DataDisplay

Rendering of meshes colored by data

Target: Sofa.GL.Component.Rendering3D

namespace: sofa::gl::component::rendering3d

parents:

  • VisualModel
  • VisualState

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
enable Display the object or not 1
maximalRange Keep the maximal range through all timesteps 1
pointData Data associated with nodes
triangleData Data associated with triangles
quadData Data associated with quads
pointTriangleData Data associated with nodes per triangle
pointQuadData Data associated with nodes per quad
colorNaN Color used for NaN values (default=[0.0,0.0,0.0,1.0]) 0 0 0 1
userRange Clamp to this values (if max>min) 1 -1
currentMin Current min range 0
currentMax Current max range 0
shininess Shininess for rendering point-based data [0,128]. <0 means no specularity -1
transparency transparency draw objects with transparency, the value varies between 0. and 1. Where 1. means no transparency and 0 full transparency 1
Vector
position Vertices coordinates
restPosition Vertices rest coordinates
normal Normals of the model
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
topology link to the topology container BaseMeshTopology

Examples

DataDisplay.scn

<!-- Use of DataDisplay to show distances from rest shape  -->
<Node name="root" gravity="0 0 -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 [DiscreteIntersection] -->
    <RequiredPlugin name="Sofa.Component.Collision.Geometry"/> <!-- Needed to use components [TriangleCollisionModel] -->
    <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.LinearSolver.Iterative"/> <!-- Needed to use components [CGLinearSolver] -->
    <RequiredPlugin name="Sofa.Component.Mapping.Linear"/> <!-- Needed to use components [IdentityMapping] -->
    <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 [TriangleFEMForceField] -->
    <RequiredPlugin name="Sofa.Component.SolidMechanics.Spring"/> <!-- Needed to use components [TriangleBendingSprings] -->
    <RequiredPlugin name="Sofa.Component.StateContainer"/> <!-- Needed to use components [MechanicalObject] -->
    <RequiredPlugin name="Sofa.Component.Topology.Container.Grid"/> <!-- Needed to use components [RegularGridTopology] -->
    <RequiredPlugin name="Sofa.Component.Visual"/> <!-- Needed to use components [VisualStyle] -->
    <RequiredPlugin name="Sofa.GL.Component.Rendering2D"/> <!-- Needed to use components [OglColorMap] -->
    <RequiredPlugin name="Sofa.GL.Component.Rendering3D"/> <!-- Needed to use components [DataDisplay] -->
    <RequiredPlugin name="SofaValidation"/> <!-- Needed to use components [EvalPointsDistance] -->

    <VisualStyle displayFlags="showVisual hideBehavior hideCollision hideMapping" />
    <CollisionPipeline verbose="0" name="CollisionPipeline" />
    <BruteForceBroadPhase/>
    <BVHNarrowPhase/>
    <CollisionResponse response="PenalityContactForceField" name="collision response" />
    <DiscreteIntersection />
    <DefaultAnimationLoop/>

    <Node name="Mesh">
        <RegularGridTopology name="Grid" nx="10" ny="10" nz="1" xmin="0" xmax="9" ymin="0" ymax="9" zmin="0" zmax="1" />
        <MechanicalObject name="MO" />
    </Node>

    <Node name="Simulation">
        <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" />
        <RegularGridTopology src="@/Mesh/Grid" />
        <MechanicalObject />
        <UniformMass vertexMass="0.1" />
        <FixedProjectiveConstraint indices="0 9 99" />
        <TriangleFEMForceField name="FEM3" youngModulus="5000" poissonRatio="0.3" method="large" />
        <TriangleBendingSprings name="FEM-Bend" stiffness="100" damping="0.1" />
        <TriangleCollisionModel />

        <EvalPointsDistance name="dist" object1="@/Mesh/MO" object2="@." listening="true" period="0.05" draw="false" />


        <Node name="Data">
            <DataDisplay pointData="@../dist.distance" />
            <OglColorMap colorScheme="Blue to Red" />
            <IdentityMapping input="@.." output="@."/>
        </Node>

    </Node>
</Node>
def createScene(root_node):

   root = root_node.addChild('root', gravity="0 0 -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.Geometry")
   root.addObject('RequiredPlugin', name="Sofa.Component.Collision.Response.Contact")
   root.addObject('RequiredPlugin', name="Sofa.Component.Constraint.Projective")
   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.SolidMechanics.Spring")
   root.addObject('RequiredPlugin', name="Sofa.Component.StateContainer")
   root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Grid")
   root.addObject('RequiredPlugin', name="Sofa.Component.Visual")
   root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering2D")
   root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
   root.addObject('RequiredPlugin', name="SofaValidation")
   root.addObject('VisualStyle', displayFlags="showVisual hideBehavior hideCollision hideMapping")
   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 = root.addChild('Mesh')

   mesh.addObject('RegularGridTopology', name="Grid", nx="10", ny="10", nz="1", xmin="0", xmax="9", ymin="0", ymax="9", zmin="0", zmax="1")
   mesh.addObject('MechanicalObject', name="MO")

   simulation = root.addChild('Simulation')

   simulation.addObject('EulerImplicitSolver', name="cg_odesolver", printLog="false", rayleighStiffness="0.1", rayleighMass="0.1")
   simulation.addObject('CGLinearSolver', iterations="25", name="linear solver", tolerance="1.0e-9", threshold="1.0e-9")
   simulation.addObject('RegularGridTopology', src="@/Mesh/Grid")
   simulation.addObject('MechanicalObject', )
   simulation.addObject('UniformMass', vertexMass="0.1")
   simulation.addObject('FixedProjectiveConstraint', indices="0 9 99")
   simulation.addObject('TriangleFEMForceField', name="FEM3", youngModulus="5000", poissonRatio="0.3", method="large")
   simulation.addObject('TriangleBendingSprings', name="FEM-Bend", stiffness="100", damping="0.1")
   simulation.addObject('TriangleCollisionModel', )
   simulation.addObject('EvalPointsDistance', name="dist", object1="@/Mesh/MO", object2="@.", listening="true", period="0.05", draw="false")

   data = Simulation.addChild('Data')

   data.addObject('DataDisplay', pointData="@../dist.distance")
   data.addObject('OglColorMap', colorScheme="Blue to Red")
   data.addObject('IdentityMapping', input="@..", output="@.")