====== Point Cloud======

Point clouds in GroIMP are composed of a ''PointCloud'', a ''Cloud'' and ''Point''. They are defined as follow: 
  * **PointCloud** : A **Node**, i.e. an object that can be inserted in a GroIMP graph. The PointCloud is responsible for the display of the points. 
  * **Cloud** : The representation of the data structure through which the point cloud data is accessed. 
  * **Point** : The base interface that an object must implements to be part of a Cloud. 

These three Objects implements **CloudContext**, meaning when any of the three is selected, you can access the **Cloud** structure handled.
Most of the tools from the package //de.grogra.pointcloud.tools// are applied on Cloud, and produce Cloud objects. 
The GUI commands however can works with any CloudContext object.

The PointCloud objects can be modified with a set of available [[:01_user_documentation:05_object:01_geometric:02_3d:01_primitive:12_point_cloud:15_tools|tools]], [[:01_user_documentation:09_math:02_set_theory_volume:50_fitting|shape fitting]], and [[:01_user_documentation:09_math:02_set_theory_volume:50_pccluster|clustering]]

======  ======

<uml>
scale 300 width
Class Node
Class PointCloud {
setCloud()
}
Interface CloudContext {
Cloud getCloud
}
Interface Cloud {
setPoints(Point[])
addPoints(Point[])
getPoints()
remove(Object[])
removeAll()
float[] pointsToFloat()
Point[] floatsToPoints(float[])
}
Interface Point {
float[] toFloat()
}

Node <|-- PointCloud
CloudContext <|.. PointCloud
CloudContext <|-- Cloud
CloudContext <|-- Point
Point --* Cloud
Cloud --o PointCloud


</uml>




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