SparseGridRamificationTopology
Sparse grid in 3D (modified).
Target: Sofa.Component.Topology.Container.Grid
namespace: sofa::component::topology::container::grid
parents:
- SparseGridTopology
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 |
| filename | Filename of the mesh | |
| position | List of point positions | |
| edges | List of edge indices | |
| triangles | List of triangle indices | |
| quads | List of quad indices | |
| tetrahedra | List of tetrahedron indices | |
| hexahedra | List of hexahedron indices | |
| uv | List of uv coordinates | |
| fillWeighted | Is quantity of matter inside a cell taken into account? (.5 for boundary, 1 for inside) | 1 |
| onlyInsideCells | Select only inside cells (exclude boundary cells) | 0 |
| n | grid resolution | 2 2 2 |
| min | Min | 0 0 0 |
| max | Max | 0 0 0 |
| cellWidth | if > 0 : dimension of each cell in the created grid | 0 |
| nbVirtualFinerLevels | create virtual (not in the animation tree) finer sparse grids in order to dispose of finest information (usefull to compute better mechanical properties for example) | 0 |
| dataResolution | Dimension of the voxel File | 0 0 0 |
| voxelSize | Dimension of one voxel | 1 1 1 |
| marchingCubeStep | Step of the Marching Cube algorithm | 1 |
| convolutionSize | Dimension of the convolution kernel to smooth the voxels. 0 if no smoothing is required. | 0 |
| facets | Input mesh facets | |
| finestConnectivity | Test for connectivity at the finest level? (more precise but slower by testing all intersections between the model mesh and the faces between boundary cubes) | 1 |
| Visualization | ||
| drawEdges | if true, draw the topology Edges | 0 |
| drawTriangles | if true, draw the topology Triangles | 0 |
| drawQuads | if true, draw the topology Quads | 0 |
| drawTetrahedra | if true, draw the topology Tetrahedra | 0 |
| drawHexahedra | if true, draw the topology hexahedra | 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
SparseGridRamificationTopology.scn
<?xml version="1.0"?>
<Node name="root" gravity="0 0 -9" dt="0.02">
<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.Geometry"/> <!-- Needed to use components [LineCollisionModel PointCollisionModel 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.Engine.Select"/> <!-- Needed to use components [BoxROI] -->
<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.ODESolver.Backward"/> <!-- Needed to use components [EulerImplicitSolver] -->
<RequiredPlugin name="Sofa.Component.SolidMechanics.FEM.Elastic"/> <!-- Needed to use components [HexahedronFEMForceFieldAndMass] -->
<RequiredPlugin name="Sofa.Component.StateContainer"/> <!-- Needed to use components [MechanicalObject] -->
<RequiredPlugin name="Sofa.Component.Topology.Container.Constant"/> <!-- Needed to use components [MeshTopology] -->
<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] -->
<VisualStyle displayFlags="showVisual showBehaviorModels showForceFields" />
<DefaultAnimationLoop/>
<CollisionPipeline depth="6" verbose="0" draw="0" />
<BruteForceBroadPhase/>
<BVHNarrowPhase/>
<MinProximityIntersection name="Proximity" alarmDistance="0.5" contactDistance="0.3" />
<CollisionResponse name="Response" response="PenalityContactForceField" />
<Node name="UniformC Rough">
<SparseGridRamificationTopology n="5 2 2" fileTopology="mesh/c.obj" nbVirtualFinerLevels="3" finestConnectivity="0" />
<EulerImplicitSolver rayleighStiffness="0.1" rayleighMass="0.1" />
<CGLinearSolver iterations="10" tolerance="1e-5" threshold="1e-5"/>
<MechanicalObject />
<HexahedronFEMForceFieldAndMass youngModulus="100000" poissonRatio="0.3" method="large" density="3" updateStiffnessMatrix="false" printLog="0" />
<BoxConstraint box="-16 -10 -3 -14 10 3" />
<Node name="Visu">
<MeshOBJLoader name="meshLoader_1" filename="mesh/c.obj" handleSeams="1" />
<OglModel name="Visual" src="@meshLoader_1" color="blue" />
<BarycentricMapping input="@.." output="@Visual" />
</Node>
<Node name="Surf">
<MeshOBJLoader name="loader" filename="mesh/c.obj" />
<MeshTopology src="@loader" />
<MechanicalObject src="@loader" />
<TriangleCollisionModel />
<PointCollisionModel />
<LineCollisionModel />
<BarycentricMapping />
</Node>
</Node>
<Node name="UniformC">
<SparseGridRamificationTopology n="5 2 2" fileTopology="mesh/c.obj" nbVirtualFinerLevels="3" finestConnectivity="0" />
<EulerImplicitSolver rayleighStiffness="0.1" rayleighMass="0.1" />
<CGLinearSolver iterations="10" tolerance="1e-5" threshold="1e-5"/>
<MechanicalObject dx="40" />
<HexahedronFEMForceFieldAndMass youngModulus="100000" poissonRatio="0.3" method="large" density="3" updateStiffnessMatrix="false" printLog="0" />
<BoxConstraint box="24 -10 -3 26 10 3" />
<Node name="Visu">
<MeshOBJLoader name="meshLoader_0" filename="mesh/c.obj" handleSeams="1" />
<OglModel name="Visual" src="@meshLoader_0" color="red" />
<BarycentricMapping input="@.." output="@Visual" />
</Node>
<Node name="Surf">
<MeshOBJLoader name="loader" filename="mesh/c.obj" />
<MeshTopology src="@loader" />
<MechanicalObject src="@loader" />
<TriangleCollisionModel />
<PointCollisionModel />
<LineCollisionModel />
<BarycentricMapping />
</Node>
</Node>
<Node name="UniformC and finestConnectivity">
<SparseGridRamificationTopology n="5 3 3" fileTopology="mesh/c.obj" nbVirtualFinerLevels="0" finestConnectivity="1" />
<EulerImplicitSolver rayleighStiffness="0.1" rayleighMass="0.1" />
<CGLinearSolver iterations="10" tolerance="1e-5" threshold="1e-5"/>
<MechanicalObject dx="80" />
<HexahedronFEMForceFieldAndMass youngModulus="100000" poissonRatio="0.3" method="large" density="3" updateStiffnessMatrix="false" printLog="0" />
<BoxConstraint box="64 -10 -3 66 10 3" />
<Node name="Visu">
<MeshOBJLoader name="meshLoader_2" filename="mesh/c.obj" handleSeams="1" />
<OglModel name="Visual" src="@meshLoader_2" color="yellow" />
<BarycentricMapping input="@.." output="@Visual" />
</Node>
<Node name="Surf">
<MeshOBJLoader name="loader" filename="mesh/c.obj" />
<MeshTopology src="@loader" />
<MechanicalObject src="@loader" />
<TriangleCollisionModel />
<PointCollisionModel />
<LineCollisionModel />
<BarycentricMapping />
</Node>
</Node>
</Node>
def createScene(root_node):
root = root_node.addChild('root', gravity="0 0 -9", dt="0.02")
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.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.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.Constant")
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('VisualStyle', displayFlags="showVisual showBehaviorModels showForceFields")
root.addObject('DefaultAnimationLoop', )
root.addObject('CollisionPipeline', depth="6", verbose="0", draw="0")
root.addObject('BruteForceBroadPhase', )
root.addObject('BVHNarrowPhase', )
root.addObject('MinProximityIntersection', name="Proximity", alarmDistance="0.5", contactDistance="0.3")
root.addObject('CollisionResponse', name="Response", response="PenalityContactForceField")
uniform_c__rough = root.addChild('UniformC Rough')
uniform_c__rough.addObject('SparseGridRamificationTopology', n="5 2 2", fileTopology="mesh/c.obj", nbVirtualFinerLevels="3", finestConnectivity="0")
uniform_c__rough.addObject('EulerImplicitSolver', rayleighStiffness="0.1", rayleighMass="0.1")
uniform_c__rough.addObject('CGLinearSolver', iterations="10", tolerance="1e-5", threshold="1e-5")
uniform_c__rough.addObject('MechanicalObject', )
uniform_c__rough.addObject('HexahedronFEMForceFieldAndMass', youngModulus="100000", poissonRatio="0.3", method="large", density="3", updateStiffnessMatrix="false", printLog="0")
uniform_c__rough.addObject('BoxConstraint', box="-16 -10 -3 -14 10 3")
visu = UniformC Rough.addChild('Visu')
visu.addObject('MeshOBJLoader', name="meshLoader_1", filename="mesh/c.obj", handleSeams="1")
visu.addObject('OglModel', name="Visual", src="@meshLoader_1", color="blue")
visu.addObject('BarycentricMapping', input="@..", output="@Visual")
surf = UniformC Rough.addChild('Surf')
surf.addObject('MeshOBJLoader', name="loader", filename="mesh/c.obj")
surf.addObject('MeshTopology', src="@loader")
surf.addObject('MechanicalObject', src="@loader")
surf.addObject('TriangleCollisionModel', )
surf.addObject('PointCollisionModel', )
surf.addObject('LineCollisionModel', )
surf.addObject('BarycentricMapping', )
uniform_c = root.addChild('UniformC')
uniform_c.addObject('SparseGridRamificationTopology', n="5 2 2", fileTopology="mesh/c.obj", nbVirtualFinerLevels="3", finestConnectivity="0")
uniform_c.addObject('EulerImplicitSolver', rayleighStiffness="0.1", rayleighMass="0.1")
uniform_c.addObject('CGLinearSolver', iterations="10", tolerance="1e-5", threshold="1e-5")
uniform_c.addObject('MechanicalObject', dx="40")
uniform_c.addObject('HexahedronFEMForceFieldAndMass', youngModulus="100000", poissonRatio="0.3", method="large", density="3", updateStiffnessMatrix="false", printLog="0")
uniform_c.addObject('BoxConstraint', box="24 -10 -3 26 10 3")
visu = UniformC.addChild('Visu')
visu.addObject('MeshOBJLoader', name="meshLoader_0", filename="mesh/c.obj", handleSeams="1")
visu.addObject('OglModel', name="Visual", src="@meshLoader_0", color="red")
visu.addObject('BarycentricMapping', input="@..", output="@Visual")
surf = UniformC.addChild('Surf')
surf.addObject('MeshOBJLoader', name="loader", filename="mesh/c.obj")
surf.addObject('MeshTopology', src="@loader")
surf.addObject('MechanicalObject', src="@loader")
surf.addObject('TriangleCollisionModel', )
surf.addObject('PointCollisionModel', )
surf.addObject('LineCollisionModel', )
surf.addObject('BarycentricMapping', )
uniform_c_and_finest_connectivity = root.addChild('UniformC and finestConnectivity')
uniform_c_and_finest_connectivity.addObject('SparseGridRamificationTopology', n="5 3 3", fileTopology="mesh/c.obj", nbVirtualFinerLevels="0", finestConnectivity="1")
uniform_c_and_finest_connectivity.addObject('EulerImplicitSolver', rayleighStiffness="0.1", rayleighMass="0.1")
uniform_c_and_finest_connectivity.addObject('CGLinearSolver', iterations="10", tolerance="1e-5", threshold="1e-5")
uniform_c_and_finest_connectivity.addObject('MechanicalObject', dx="80")
uniform_c_and_finest_connectivity.addObject('HexahedronFEMForceFieldAndMass', youngModulus="100000", poissonRatio="0.3", method="large", density="3", updateStiffnessMatrix="false", printLog="0")
uniform_c_and_finest_connectivity.addObject('BoxConstraint', box="64 -10 -3 66 10 3")
visu = UniformC and finestConnectivity.addChild('Visu')
visu.addObject('MeshOBJLoader', name="meshLoader_2", filename="mesh/c.obj", handleSeams="1")
visu.addObject('OglModel', name="Visual", src="@meshLoader_2", color="yellow")
visu.addObject('BarycentricMapping', input="@..", output="@Visual")
surf = UniformC and finestConnectivity.addChild('Surf')
surf.addObject('MeshOBJLoader', name="loader", filename="mesh/c.obj")
surf.addObject('MeshTopology', src="@loader")
surf.addObject('MechanicalObject', src="@loader")
surf.addObject('TriangleCollisionModel', )
surf.addObject('PointCollisionModel', )
surf.addObject('LineCollisionModel', )
surf.addObject('BarycentricMapping', )