/usr/share/sofa/examples/Components/constraint/ is in sofa-data 1.0~beta4-7.
This file is owned by root:root, with mode 0o755.
..
/usr/share/sofa/examples/Components/constraint/AttachConstraint.scn
/usr/share/sofa/examples/Components/constraint/AttachConstraint.scn.view
/usr/share/sofa/examples/Components/constraint/BeamConstraint.scn.view
/usr/share/sofa/examples/Components/constraint/BilateralInteractionConstraint.scn.view
/usr/share/sofa/examples/Components/constraint/BoxConstraint.scn
/usr/share/sofa/examples/Components/constraint/BoxConstraint.scn.view
/usr/share/sofa/examples/Components/constraint/DisplacementConstraint.scn
/usr/share/sofa/examples/Components/constraint/DistanceConstraint.scn
/usr/share/sofa/examples/Components/constraint/FixedConstraint.scn
/usr/share/sofa/examples/Components/constraint/FixedConstraint.scn.view
/usr/share/sofa/examples/Components/constraint/FixedPlaneConstraint.scn
/usr/share/sofa/examples/Components/constraint/HermiteSplineConstraint.scn
/usr/share/sofa/examples/Components/constraint/LinearMovementConstraint.scn
/usr/share/sofa/examples/Components/constraint/NonBuiltConstraintCorrection.scn
/usr/share/sofa/examples/Components/constraint/OscillatorConstraint.scn
/usr/share/sofa/examples/Components/constraint/ParabolicConstraint.scn
/usr/share/sofa/examples/Components/constraint/ParabolicConstraint.scn.view
/usr/share/sofa/examples/Components/constraint/ParticleSink.scn
/usr/share/sofa/examples/Components/constraint/ParticleSource.scn
/usr/share/sofa/examples/Components/constraint/ProjectionLineConstraint.scn
/usr/share/sofa/examples/Components/constraint/ProjectionPlaneConstraint.scn
/usr/share/sofa/examples/Components/constraint/SlidingConstraint.scn.view