Skip to content

ExtrudeSurface

Engine creating a mesh from the extrusion of the surface of a given mesh.

Vec3d

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 object 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
isVisible is Visible ? 1
heightFactor Factor for the height of the extrusion (based on normal) 1
Inputs
triangles Triangle topology (list of BaseMeshTopology::Triangle)
surfaceVertices Position coordinates of the surface
surfaceTriangles Indices of the triangles of the surface to extrude
Outputs
extrusionVertices Position coordinates of the extrusion
extrusionTriangles Subset triangle topology used for the extrusion
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

ExtrudeSurface.scn

<?xml version="1.0"?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="Sofa.Component.Engine.Generate"/> <!-- Needed to use components [ExtrudeSurface RandomPointDistributionInSurface] -->
    <RequiredPlugin name="Sofa.Component.Engine.Select"/> <!-- Needed to use components [SphereROI] -->
    <RequiredPlugin name="Sofa.Component.IO.Mesh"/> <!-- Needed to use components [MeshOBJLoader] -->
    <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.GL.Component.Rendering3D"/> <!-- Needed to use components [OglModel] -->

    <DefaultAnimationLoop/>
    <Node name="extrude">
        <MeshOBJLoader name="meshLoader" filename="mesh/liver.obj" />
        <MechanicalObject src="@meshLoader"/>
        <SphereROI name="surface1" centers="2 4 0" radii="0.88" drawSize="0" isVisible="0" src="@meshLoader" />
        <ExtrudeSurface template="Vec3" name="extrusion" triangles="@meshLoader.triangles" surfaceVertices="@meshLoader.position" surfaceTriangles="@surface1.triangleIndices" isVisible="0" />
        <RandomPointDistributionInSurface template="Vec3" vertices="@extrusion.extrusionVertices" triangles="@extrusion.extrusionTriangles" numberOfInPoints="100" numberOfTests="3" minDistanceBetweenPoints="0.1" />
    </Node>
    <Node name="Extrusion">
        <MeshTopology points="@../extrude/extrusion.extrusionVertices" triangles="@../extrude/extrusion.extrusionTriangles" />
        <MechanicalObject position="@../extrude/extrusion.extrusionVertices"/>
        <OglModel color="red" />
    </Node>
    <Node>
        <MeshOBJLoader name='myLoader' filename='mesh/liver.obj'/>
        <OglModel src='@myLoader'/>
    </Node>
</Node>

def createScene(root_node):

   root = root_node.addChild('root', dt="0.02")

   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.StateContainer")
   root.addObject('RequiredPlugin', name="Sofa.Component.Topology.Container.Constant")
   root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
   root.addObject('DefaultAnimationLoop', )

   extrude = root.addChild('extrude')

   extrude.addObject('MeshOBJLoader', name="meshLoader", filename="mesh/liver.obj")
   extrude.addObject('MechanicalObject', src="@meshLoader")
   extrude.addObject('SphereROI', name="surface1", centers="2 4 0", radii="0.88", drawSize="0", isVisible="0", src="@meshLoader")
   extrude.addObject('ExtrudeSurface', template="Vec3", name="extrusion", triangles="@meshLoader.triangles", surfaceVertices="@meshLoader.position", surfaceTriangles="@surface1.triangleIndices", isVisible="0")
   extrude.addObject('RandomPointDistributionInSurface', template="Vec3", vertices="@extrusion.extrusionVertices", triangles="@extrusion.extrusionTriangles", numberOfInPoints="100", numberOfTests="3", minDistanceBetweenPoints="0.1")

   extrusion = root.addChild('Extrusion')

   extrusion.addObject('MeshTopology', points="@../extrude/extrusion.extrusionVertices", triangles="@../extrude/extrusion.extrusionTriangles")
   extrusion.addObject('MechanicalObject', position="@../extrude/extrusion.extrusionVertices")
   extrusion.addObject('OglModel', color="red")

   node = root.addChild('node')

   node.addObject('MeshOBJLoader', name="myLoader", filename="mesh/liver.obj")
   node.addObject('OglModel', src="@myLoader")