MeshBoundaryROI
Outputs indices of boundary vertices of a triangle/quad mesh
Target: Sofa.Component.Engine.Select
namespace: sofa::component::engine::select
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 |
| Inputs | ||
| triangles | input triangles | |
| quads | input quads | |
| inputROI | optional subset of the input mesh | |
| Outputs | ||
| indices | Index lists of the closing vertices | |
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 |
Examples
Component/Engine/Select/MeshBoundaryROI.scn
<?xml version="1.0"?>
<Node name="root" gravity="0 0 0" dt="1" >
<RequiredPlugin name="Sofa.Component.Constraint.Projective"/> <!-- Needed to use components [FixedProjectiveConstraint] -->
<RequiredPlugin name="Sofa.Component.Engine.Generate"/> <!-- Needed to use components [MergeMeshes] -->
<RequiredPlugin name="Sofa.Component.Engine.Select"/> <!-- Needed to use components [MeshBoundaryROI] -->
<RequiredPlugin name="Sofa.Component.IO.Mesh"/> <!-- Needed to use components [MeshOBJLoader] -->
<RequiredPlugin name="Sofa.Component.Setting"/> <!-- Needed to use components [BackgroundSetting] -->
<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.Rendering3D"/> <!-- Needed to use components [OglModel] -->
<BackgroundSetting color="1 1 1" />
<VisualStyle displayFlags="showVisual showBehaviorModels" />
<DefaultAnimationLoop/>
<MeshOBJLoader name="mesh1" filename="mesh/c_open.obj" triangulate="0"/>
<!-- computeTriangleList or computeQuadList must be set to false. Otherwise both are consider, and boundary detection cannot rely on a unique element -->
<RegularGridTopology name="mesh2" nx="5" ny="5" nz="1" xmin="-10" xmax="10" ymin="-10" ymax="10" zmin="-5" zmax="-5" computeTriangleList="false"/>
<MergeMeshes name="mesh" nbMeshes="2" position1="@mesh1.position" position2="@mesh2.position" triangles1="@mesh1.triangles" triangles2="@mesh2.triangles" quads1="@mesh1.quads" quads2="@mesh2.quads"/>
<OglModel name="visual" src="@mesh" color="0.5 0.5 1 1" />
<MechanicalObject template="Vec3" position="@mesh.position" />
<MeshBoundaryROI name="roi" triangles="@mesh.triangles" quads="@mesh.quads"/>
<FixedProjectiveConstraint template="Vec3" indices="@roi.indices" />
</Node>
def createScene(rootNode):
root = rootNode.addChild('root', gravity="0 0 0", dt="1")
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.Setting")
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.Rendering3D")
root.addObject('BackgroundSetting', color="1 1 1")
root.addObject('VisualStyle', displayFlags="showVisual showBehaviorModels")
root.addObject('DefaultAnimationLoop')
root.addObject('MeshOBJLoader', name="mesh1", filename="mesh/c_open.obj", triangulate="0")
root.addObject('RegularGridTopology', name="mesh2", nx="5", ny="5", nz="1", xmin="-10", xmax="10", ymin="-10", ymax="10", zmin="-5", zmax="-5", computeTriangleList="false")
root.addObject('MergeMeshes', name="mesh", nbMeshes="2", position1="@mesh1.position", position2="@mesh2.position", triangles1="@mesh1.triangles", triangles2="@mesh2.triangles", quads1="@mesh1.quads", quads2="@mesh2.quads")
root.addObject('OglModel', name="visual", src="@mesh", color="0.5 0.5 1 1")
root.addObject('MechanicalObject', template="Vec3", position="@mesh.position")
root.addObject('MeshBoundaryROI', name="roi", triangles="@mesh.triangles", quads="@mesh.quads")
root.addObject('FixedProjectiveConstraint', template="Vec3", indices="@roi.indices")