RandomPointDistributionInSurface

Engine distributing points over a surface randomly.

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 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
randomSeed	Set a specified seed for random generation (0 for "true pseudo-randomness"	0
isVisible	is Visible ?	1
minDistanceBetweenPoints	Min Distance between 2 points (-1 for true randomness)	0.1
numberOfInPoints	Number of points inside	10
numberOfTests	Number of tests to find if the point is inside or not (odd number)	5
outPoints	Points outside the surface
Visualization
drawOutputPoints	Output points visible ?	0
Inputs
vertices	Vertices
triangles	Triangles indices
Outputs
inPoints	Points inside the surface

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

RandomPointDistributionInSurface.scn

XMLPython

<?xml version="1.0"?>
<Node name="root" dt="0.02">
    <RequiredPlugin name="Sofa.Component.Engine.Generate"/> <!-- Needed to use components [RandomPointDistributionInSurface] -->
    <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.Visual"/> <!-- Needed to use components [VisualStyle] -->
    <RequiredPlugin name="Sofa.GL.Component.Rendering3D"/> <!-- Needed to use components [OglModel] -->
    <VisualStyle displayFlags="showBehaviorModels" />
    <DefaultAnimationLoop/>

    <Node name="Random">
        <MeshOBJLoader name="meshLoader" filename="mesh/liver.obj" />
        <MechanicalObject src="@meshLoader"/>
        <RandomPointDistributionInSurface template="Vec3" drawOutputPoints="true"
            vertices="@meshLoader.position" triangles="@meshLoader.triangles" numberOfInPoints="100" numberOfTests="3" minDistanceBetweenPoints="0.1" 
        />
    </Node>
    <Node name="Visu">
        <VisualStyle displayFlags="showWireframe" />
        <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.IO.Mesh")
   root.addObject('RequiredPlugin', name="Sofa.Component.StateContainer")
   root.addObject('RequiredPlugin', name="Sofa.Component.Visual")
   root.addObject('RequiredPlugin', name="Sofa.GL.Component.Rendering3D")
   root.addObject('VisualStyle', displayFlags="showBehaviorModels")
   root.addObject('DefaultAnimationLoop', )

   random = root.addChild('Random')

   random.addObject('MeshOBJLoader', name="meshLoader", filename="mesh/liver.obj")
   random.addObject('MechanicalObject', src="@meshLoader")
   random.addObject('RandomPointDistributionInSurface', template="Vec3", drawOutputPoints="true", vertices="@meshLoader.position", triangles="@meshLoader.triangles", numberOfInPoints="100", numberOfTests="3", minDistanceBetweenPoints="0.1")

   visu = root.addChild('Visu')

   visu.addObject('VisualStyle', displayFlags="showWireframe")
   visu.addObject('MeshOBJLoader', name="myLoader", filename="mesh/liver.obj")
   visu.addObject('OglModel', src="@myLoader")