Module de.grogra.categorizedExporter

Package de.grogra.categorizedExporter.obj

Class OBJExport

java.lang.Object

de.grogra.pf.io.FilterBase

de.grogra.imp3d.io.SceneGraphExport

de.grogra.categorizedExporter.obj.OBJExport

All Implemented Interfaces:

SceneTree.Visitor, FileWriterSource, Filter, FilterSource, RegistryContext, Map

public class OBJExport
extends SceneGraphExport
implements FileWriterSource

A simple exporter for Wavefront (ASCII)-OBJ files. http://en.wikipedia.org/wiki/Wavefront_.obj_file MH 2021-05-30

Nested Class Summary

Nested classes/interfaces inherited from class de.grogra.imp3d.io.SceneGraphExport

SceneGraphExport.NodeExport, SceneGraphExport.ObjectExport

Nested classes/interfaces inherited from interface de.grogra.pf.io.FilterSource

FilterSource.MetaDataKey<V>

Nested classes/interfaces inherited from interface de.grogra.util.Map

Map.Chain

Field Summary

Fields

Modifier and Type	Field	Description
protected int	facets
static final FilterSource.MetaDataKey<Float>	FLATNESS
protected StringBuffer	outVF
protected int	primitives
protected int	vertices

Fields inherited from class de.grogra.imp3d.io.SceneGraphExport

files

Fields inherited from class de.grogra.pf.io.FilterBase

item, source

Fields inherited from interface de.grogra.pf.io.FilterSource

AUTO_PROGRESS, DESTINATION_FILE, DESTINATION_URL

Fields inherited from interface de.grogra.util.Map

DEFAULT_VALUE, EMPTY_MAP

Constructor Summary

Constructors

Constructor	Description
OBJExport(FilterItem item, FilterSource source)

Method Summary

Modifier and Type	Method	Description
protected void	beginGroup(SceneTree.InnerNode group)	This method is invoked at the beginning of every inner node group which has more than one child.
protected SceneTree	createSceneTree(View3D scene)	The implementation of this method creates the scene tree which is to be exported by this export.
protected void	endGroup(SceneTree.InnerNode group)	This method is invoked at the end of every inner node group which has more than one child.
SceneGraphExport.NodeExport	getExportFor(Object object, boolean asNode)	This method is used to obtain an instance of NodeExport capable of exporting the object of a SceneTree.Leaf.
void	increaseProgress()
void	write(File file)	This method writes the data to out.

Methods inherited from class de.grogra.imp3d.io.SceneGraphExport

export, export, getDirectory, getExportForObject, getFile, getFiles, getFileSystem, getGraphState, getOutputStream, getPath, getPath, getView, initDirectory, initFileSystem, visit, visitEnter, visitLeave, write

Methods inherited from class de.grogra.pf.io.FilterBase

get, getFilter, getFlavor, getImpl, getMetaData, getRegistry, getSource, getSystemId, initProgressMonitor, setFlavor, setMetaData, setMetaData, setProgress, setSystemId, toString, toURL

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface de.grogra.pf.io.FilterSource

getFilter, getFlavor, getMetaData, getSystemId, initProgressMonitor, setMetaData, setProgress

Methods inherited from interface de.grogra.pf.registry.RegistryContext

getRegistry

Field Details

FLATNESS

public static final FilterSource.MetaDataKey<Float> FLATNESS

outVF

protected StringBuffer outVF

primitives

protected int primitives

vertices

protected int vertices

facets

protected int facets

Constructor Details

OBJExport

public OBJExport(FilterItem item,
 FilterSource source)

Method Details

beginGroup

protected void beginGroup(SceneTree.InnerNode group)
                   throws IOException

Description copied from class: SceneGraphExport

This method is invoked at the beginning of every inner node group which has more than one child. Its children will be processed until the corresponding method SceneGraphExport.endGroup(de.grogra.imp3d.objects.SceneTree.InnerNode) is invoked. The export should write the hierarchy and transformation information of the group.

Specified by:

beginGroup in class SceneGraphExport

Parameters:

group - the group

Throws:

IOException

createSceneTree

protected SceneTree createSceneTree(View3D scene)

Description copied from class: SceneGraphExport

The implementation of this method creates the scene tree which is to be exported by this export.

Specified by:

createSceneTree in class SceneGraphExport

Parameters:

scene - the view which defines the scene to export

Returns:

scene tree for the view

endGroup

protected void endGroup(SceneTree.InnerNode group)
                 throws IOException

Description copied from class: SceneGraphExport

This method is invoked at the end of every inner node group which has more than one child. Its children have been processed completely.

Specified by:

endGroup in class SceneGraphExport

Parameters:

group - the group

Throws:

IOException

See Also:

• SceneGraphExport.beginGroup(de.grogra.imp3d.objects.SceneTree.InnerNode)

write

public void write(File file)
           throws IOException

Description copied from interface: FileWriterSource

This method writes the data to out.

Specified by:

write in interface FileWriterSource

Parameters:

file - the file to which data is written

Throws:

IOException

getExportFor

public SceneGraphExport.NodeExport getExportFor(Object object,
 boolean asNode)

Description copied from class: SceneGraphExport

This method is used to obtain an instance of NodeExport capable of exporting the object of a SceneTree.Leaf. If no such export is defined, null is returned.

This implementation looks for an export defined in the registry: As name, the name of the class of object is chosen, the export is searched as a child of FilterBase.item.

Overrides:

getExportFor in class SceneGraphExport

Parameters:

object - object of the original scene graph

asNode - is object a node or an edge?

Returns:

suitable export for the object or null

increaseProgress

public void increaseProgress()