FrontSurfaceReconstruction

Generate triangular surface mesh from point cloud

Target: CGALPlugin

namespace: cgal

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
position	Input point cloud positions
radiusRatioBound	Candidates incident to surface triangles which are not in the beta-wedge are discarded, if the ratio of their radius and the radius of the surface triangle is larger than radius_ratio_bound	5
beta	Half the angle of the wedge in which only the radius of triangles counts for the plausibility of candidates.	0.52
Outputs
outputPosition	Output position of the surface mesh
outputTriangles	Output triangles of the surface mesh

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

FrontSurfaceReconstruction.scn

XMLPython

<?xml version="1.0"?>
<Node name="root" gravity="0 0 0" dt="1"  >
    <RequiredPlugin pluginName="CGALPlugin"/>
  <RequiredPlugin pluginName='SofaOpenglVisual'/>

    <VisualStyle displayFlags="showVisual" />

    <Node name="PointCloud">
        <MeshOBJLoader name="loader" filename="mesh/liver2.obj"/>
        <MeshTopology src="@loader"/>
        <MechanicalObject showObject="1" showObjectScale="5"/>
    </Node>

    <Node name="FrontSurfaceReconstruction">
        <FrontSurfaceReconstruction name="engine" src="@../PointCloud/loader" radiusRatioBound="5" beta="0.52"/>
        <MeshTopology position="@engine.outputPosition" triangles="@engine.outputTriangles"/>
        <OglModel color="1 0 0"/>
    </Node>

</Node>

def createScene(root_node):

   root = root_node.addChild('root', gravity="0 0 0", dt="1")

   root.addObject('RequiredPlugin', pluginName="CGALPlugin")
   root.addObject('RequiredPlugin', pluginName="SofaOpenglVisual")
   root.addObject('VisualStyle', displayFlags="showVisual")

   point_cloud = root.addChild('PointCloud')

   point_cloud.addObject('MeshOBJLoader', name="loader", filename="mesh/liver2.obj")
   point_cloud.addObject('MeshTopology', src="@loader")
   point_cloud.addObject('MechanicalObject', showObject="1", showObjectScale="5")

   front_surface_reconstruction = root.addChild('FrontSurfaceReconstruction')

   front_surface_reconstruction.addObject('FrontSurfaceReconstruction', name="engine", src="@../PointCloud/loader", radiusRatioBound="5", beta="0.52")
   front_surface_reconstruction.addObject('MeshTopology', position="@engine.outputPosition", triangles="@engine.outputTriangles")
   front_surface_reconstruction.addObject('OglModel', color="1 0 0")