Package xj3d.filter.filters

Class CombineAppearanceFilter

java.lang.Object

xj3d.filter.AbstractFilter

xj3d.filter.filters.CombineAppearanceFilter

All Implemented Interfaces:

BinaryContentHandler, ContentHandler, ProtoHandler, RouteHandler, ScriptHandler, StringContentHandler

public class CombineAppearanceFilter
extends AbstractFilter

Filter for combining multiple Shapes into a single Shape node per unique Appearance.

The input to this filter is presumed to have been run through the FlattenTransformFilter. Input must have the Shape nodes as the root nodes of the Scene, otherwise they will be ignored. At present, only IndexedTriangle* are combined and output. Not supported Light associations are lost Grouping nodes associations are list(Switch, LOD, etc) Shaders not supported LocalFog associations are lost Ignores EXPORTS Combining textured objects, needs texture coordinate logic Typical filter setup to meet expectations: filter Triangulation FlattenTransform Index CombineAppearance Notes: useDecl doesn't make it this far so doing all value compare logic Textured objects have their texture coordinates removed currently

Version:

$Revision: 1.2 $

Author:

Alan Hudson

Field Summary

Fields inherited from class xj3d.filter.AbstractFilter

contentHandler, documentLocator, errorHandler, fieldHandler, fieldReader, fieldStack, lastErrorCode, majorVersion, minorVersion, nodeStack, parsingType, protoHandler, routeHandler, scriptHandler

Constructor Summary

Constructors

Constructor	Description
CombineAppearanceFilter()	Create an instance of the filter.

Method Summary

Modifier and Type	Method	Description
void	endDocument()	Declaration of the end of the document.
void	endField()	Notification of the end of a field declaration.
void	endNode()	Notification of the end of a node declaration.
void	fieldValue(boolean value)	Set the value of the field at the given index as an boolean.
void	fieldValue(boolean[] value, int len)	Set the value of the field at the given index as an array of boolean.
void	fieldValue(double value)	Set the value of the field at the given index as an double.
void	fieldValue(double[] value, int len)	Set the value of the field at the given index as an array of doubles.
void	fieldValue(float value)	Set the value of the field at the given index as a float.
void	fieldValue(float[] value, int len)	Set the value of the field at the given index as an array of floats.
void	fieldValue(int value)	Set the value of the field at the given index as an integer.
void	fieldValue(int[] value, int len)	Set the value of the field at the given index as an array of integers.
void	fieldValue(long value)	Set the value of the field at the given index as an long.
void	fieldValue(long[] value, int len)	Set the value of the field at the given index as an array of longs.
void	fieldValue(String value)	The value of a normal field.
void	fieldValue(String[] values)	The value of an MFField where the underlying parser knows about how the values are broken up.
void	fieldValue(String[] value, int len)	Set the value of the field at the given index as an array of strings.
void	startDocument(String uri, String url, String encoding, String type, String version, String comment)	Declaration of the start of the document.
void	startField(String name)	Notification of a field declaration.
void	startNode(String name, String defName)	Notification of the start of a node.
void	useDecl(String defName)	The field value is a USE for the given node name.

Methods inherited from class xj3d.filter.AbstractFilter

componentDecl, endExternProtoDecl, endProtoBody, endProtoDecl, endScriptDecl, exportDecl, externProtoURI, getContentHandler, getErrorReporter, getLastErrorCode, getProtoHandler, getRouteHandler, getScriptHandler, importDecl, metaDecl, profileDecl, protoFieldDecl, protoIsDecl, routeDecl, scriptFieldDecl, setArguments, setContentHandler, setDocumentLocator, setErrorReporter, setParsingType, setProtoHandler, setRouteHandler, setScriptHandler, startExternProtoDecl, startProtoBody, startProtoDecl, startScriptDecl

Methods inherited from class java.lang.Object

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

Constructor Details

CombineAppearanceFilter

public CombineAppearanceFilter()

Create an instance of the filter.

Method Details

startDocument

public void startDocument(String uri,
 String url,
 String encoding,
 String type,
 String version,
 String comment)
                   throws SAVException,
VRMLException

Declaration of the start of the document. The parameters are all of the values that are declared on the header line of the file after the # start. The type string contains the representation of the first few characters of the file after the #. This allows us to work out if it is VRML97 or the later X3D spec.

Version numbers change from VRML97 to X3D and aren't logical. In the first, it is #VRML V2.0 and the second is #X3D V1.0 even though this second header represents a later spec.

Specified by:

startDocument in interface ContentHandler

Overrides:

startDocument in class AbstractFilter

Parameters:

uri - The URI of the file.

url - The base URL of the file for resolving relative URIs contained in the file

encoding - The encoding of this document - utf8 or binary

type - The bytes of the first part of the file header

version - The VRML version of this document

comment - Any trailing text on this line. If there is none, this is null.

Throws:

SAVException - This call is taken at the wrong time in the structure of the document

VRMLException - The content provided is invalid for this part of the document or can't be parsed

endDocument

public void endDocument()
                 throws SAVException,
VRMLException

Declaration of the end of the document. There will be no further parsing and hence events after this.

Specified by:

endDocument in interface ContentHandler

Overrides:

endDocument in class AbstractFilter

Throws:

SAVException - This call is taken at the wrong time in the structure of the document

VRMLException - The content provided is invalid for this part of the document or can't be parsed

startNode

public void startNode(String name,
 String defName)
               throws SAVException,
VRMLException

Notification of the start of a node. This is the opening statement of a node and it's DEF name. USE declarations are handled in a separate method.

Specified by:

startNode in interface ContentHandler

Overrides:

startNode in class AbstractFilter

Parameters:

name - The name of the node that we are about to parse

defName - The string associated with the DEF name. Null if not given for this node.

Throws:

SAVException - This call is taken at the wrong time in the structure of the document

VRMLException - The content provided is invalid for this part of the document or can't be parsed

endNode

public void endNode()
             throws SAVException,
VRMLException

Notification of the end of a node declaration.

Specified by:

endNode in interface ContentHandler

Overrides:

endNode in class AbstractFilter

Throws:

SAVException - This call is taken at the wrong time in the structure of the document

VRMLException - The content provided is invalid for this part of the document or can't be parsed

startField

public void startField(String name)
                throws SAVException,
VRMLException

Notification of a field declaration. This notification is only called if it is a standard node. If the node is a script or PROTO declaration then the ScriptHandler or ProtoHandler methods are used.

Specified by:

startField in interface ContentHandler

Overrides:

startField in class AbstractFilter

Parameters:

name - The name of the field declared

Throws:

SAVException - This call is taken at the wrong time in the structure of the document

VRMLException - The content provided is invalid for this part of the document or can't be parsed

useDecl

public void useDecl(String defName)
             throws SAVException,
VRMLException

The field value is a USE for the given node name. This is a terminating call for startField as well. The next call will either be another startField() or endNode().

Specified by:

useDecl in interface ContentHandler

Overrides:

useDecl in class AbstractFilter

Parameters:

defName - The name of the DEF string to use

Throws:

SAVException - This call is taken at the wrong time in the structure of the document

VRMLException - The content provided is invalid for this part of the document or can't be parsed

endField

public void endField()
              throws SAVException,
VRMLException

Notification of the end of a field declaration. This is called only at the end of an MFNode declaration. All other fields are terminated by either useDecl(String) or fieldValue(String).

Specified by:

endField in interface ContentHandler

Overrides:

endField in class AbstractFilter

Throws:

SAVException - This call is taken at the wrong time in the structure of the document

VRMLException - The content provided is invalid for this part of the document or can't be parsed

fieldValue

public void fieldValue(String value)
                throws SAVException,
VRMLException

The value of a normal field. This is a string that represents the entire value of the field. MFStrings will have to be parsed. This is a terminating call for startField as well. The next call will either be another startField() or endNode().

If this field is an SFNode with a USE declaration you will have the useDecl(String) method called rather than this method.

Specified by:

fieldValue in interface BinaryContentHandler

Specified by:

fieldValue in interface StringContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The value of this field

Throws:

SAVException - This call is taken at the wrong time in the structure of the document

VRMLException - The content provided is invalid for this part of the document or can't be parsed

fieldValue

public void fieldValue(String[] values)
                throws SAVException,
VRMLException

The value of an MFField where the underlying parser knows about how the values are broken up. The parser is not required to support this callback, but implementors of this interface should understand it. The most likely time we will have this method called is for MFString or URL lists. If called, it is guaranteed to split the strings along the SF node type boundaries.

Specified by:

fieldValue in interface StringContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

values - The list of string representing the values

Throws:

SAVException - This call is taken at the wrong time in the structure of the document

VRMLException - The content provided is invalid for this part of the document or can't be parsed

fieldValue

public void fieldValue(int value)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an integer. This would be used to set SFInt32 field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(int[] value,
 int len)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an array of integers. This would be used to set MFInt32 field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

len - The number of valid entries in the value array

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(boolean value)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an boolean. This would be used to set SFBool field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(boolean[] value,
 int len)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an array of boolean. This would be used to set MFBool field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

len - The number of valid entries in the value array

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(float value)
                throws SAVException,
VRMLException

Set the value of the field at the given index as a float. This would be used to set SFFloat field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(float[] value,
 int len)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an array of floats. This would be used to set MFFloat, SFVec2f, SFVec3f and SFRotation field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

len - The number of valid entries in the value array

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(long value)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an long. This would be used to set SFTime field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(long[] value,
 int len)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an array of longs. This would be used to set MFTime field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

len - The number of valid entries in the value array

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(double value)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an double. This would be used to set SFDouble field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(double[] value,
 int len)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an array of doubles. This would be used to set MFDouble, SFVec2d and SFVec3d field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

len - The number of valid entries in the value array

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.

fieldValue

public void fieldValue(String[] value,
 int len)
                throws SAVException,
VRMLException

Set the value of the field at the given index as an array of strings. This would be used to set MFString field types.

Specified by:

fieldValue in interface BinaryContentHandler

Overrides:

fieldValue in class AbstractFilter

Parameters:

value - The new value to use for the node

len - The number of valid entries in the value array

Throws:

SAVException - This call is taken at the wrong time in the structure of the document.

VRMLException - This call is taken at the wrong time in the structure of the document.