de.jreality.scene

Class PointSet

java.lang.Object

de.jreality.scene.SceneGraphNode

de.jreality.scene.Geometry

de.jreality.scene.PointSet

Direct Known Subclasses:

IndexedLineSet

public class PointSet
extends Geometry

A set of points in 3 space.

Vertices can be specified with either 3- or 4-D coordinates. The point set is represented as set of attribute/value pairs. The values are typically arrays of data, with one vector or scalar per point. Every point set must contain a value for the Attribute.COORDINATES. Other built-in attributes include:

• Attribute.COLORS
• Attribute.NORMALS
• Attribute.TEXTURE_COORDINATES
• Attribute.LABELS

Accessing instances of this class directly requires use of the class DataList. Users who prefer to avoid this are recommended to use PointSetFactory to construct instances of this class.

Author:

Tim Hoffmann, gunn

Field Summary

Fields inherited from class de.jreality.scene.Geometry

CATEGORY_EDGE, CATEGORY_FACE, CATEGORY_VERTEX

Constructor Summary

Constructors

Constructor and Description
PointSet()
PointSet(int numPoints)
PointSet(String name)
PointSet(String name, int numPoints)

Method Summary

Modifier and Type	Method and Description
void	accept(SceneGraphVisitor v) The accept method for a SceneGraphVisitor.
int	getNumPoints() The number of vertices defines the length of all data lists associated with vertex attributes.
DataListSet	getVertexAttributes() Returns a read-only view to all currently defined vertex attributes.
DataList	getVertexAttributes(Attribute attr)
void	setNumPoints(int numVertices) Sets the number of vertices, implies removal of all previously defined vertex attributes.
void	setVertexAttributes(Attribute attr, DataList dl)
void	setVertexAttributes(DataListSet dls)
void	setVertexCountAndAttributes(Attribute attr, DataList dl)
void	setVertexCountAndAttributes(DataListSet dls)

Methods inherited from class de.jreality.scene.Geometry

addGeometryListener, getAttributes, getAttributes, getGeometryAttributeCathegories, getGeometryAttributes, getGeometryAttributes, getNumEntries, removeGeometryListener, setAttributes, setAttributes, setCountAndAttributes, setCountAndAttributes, setGeometryAttributes, setGeometryAttributes, setNumEntries

Methods inherited from class de.jreality.scene.SceneGraphNode

getName, getOwner, getThreadSafe, isReadOnly, setName, setOwner, setReadOnly, setThreadSafe, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

PointSet

public PointSet()

PointSet

public PointSet(int numPoints)

PointSet

public PointSet(String name)

PointSet

public PointSet(String name,
                int numPoints)

Method Detail

getNumPoints

public int getNumPoints()

The number of vertices defines the length of all data lists associated with vertex attributes.

setNumPoints

public void setNumPoints(int numVertices)

Sets the number of vertices, implies removal of all previously defined vertex attributes.

Parameters:

numVertices - the number of vertices to set >=0

getVertexAttributes

public DataListSet getVertexAttributes()

Returns a read-only view to all currently defined vertex attributes. You can copy all currently defined vertex attributes to another PointSet using target.setVertexAttributes(source.getVertexAttributes()) These attributes are copied then, not shared. Thus modifying either source or target afterwards will not affect the other.

See Also:

setVertexAttributes(DataListSet), Geometry.getGeometryAttributes()

getVertexAttributes

public DataList getVertexAttributes(Attribute attr)

setVertexAttributes

public void setVertexAttributes(DataListSet dls)

setVertexAttributes

public void setVertexAttributes(Attribute attr,
                                DataList dl)

setVertexCountAndAttributes

public void setVertexCountAndAttributes(Attribute attr,
                                        DataList dl)

setVertexCountAndAttributes

public void setVertexCountAndAttributes(DataListSet dls)

accept

public void accept(SceneGraphVisitor v)

Description copied from class: SceneGraphNode

The accept method for a SceneGraphVisitor.

Overrides:

accept in class Geometry