jvx.loader

Class PgJvfLoader

java.lang.Object

jv.loader.PgAbstractLoader

jvx.loader.PgJvfLoader

All Implemented Interfaces:

PgLoaderIf

public class PgJvfLoader
extends PgAbstractLoader

Loader for geometry files containing functional descriptions.

Author:

Konrad Polthier

Version:

09.03.15, 3.00 revised (kp) Moved to jvx.loader from dev.loader.
22.03.10, 2.00 revised (kp) Superclass changed to PgAbstractLoader.
13.10.04, 1.10 revised (kp) Keyword expr in JVF file replaced with funExpr.
26.07.04, 1.00 created (kp)

Field Summary

Fields inherited from interface jv.loader.PgLoaderIf

GEOM_DATA_AUTHOR, GEOM_DATA_COLORS, GEOM_DATA_HEADER, GEOM_DATA_INFO, GEOM_DATA_NORMALS, GEOM_DATA_TEXTURE, GEOM_DATA_VECTORS

Constructor Summary

Constructors

Constructor and Description
PgJvfLoader()

Method Summary

Modifier and Type	Method and Description
static double	getRsrcAsDoubleF(PsXmlNode rsrcNode, java.lang.String type) Get content of node in resource tree with given element type by searching from given node.
boolean	load(java.io.BufferedReader in) Read a geometry file containing a set of geometries or animations.
static java.lang.String[][]	parseFunList(PsXmlNode parentNode, java.lang.String type, java.lang.String[] attr) Parse an array of PsXmlNodes of same element type, where each element has data consisting of a blank separated list of functions to be interpreted.
static PgGeometryIf[]	readSpecial(java.lang.String fileName) Read JVF geometry file in JavaView JVF file format.
boolean	write(java.io.Writer writer, PgJvxSrc[] geom) Write all geometries in a XML tree structure of instances of type PsXmlNode and into a writer.

Methods inherited from class jv.loader.PgAbstractLoader

getAnimations, getDisplayOption, getGeometries, getSpecializedGeometries, isAnimation, isEnabledOptimization, read, read, setAnimation, setDisplayOption, setGeometryOption, write

Methods inherited from class java.lang.Object

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

Constructor Detail

PgJvfLoader

public PgJvfLoader()

Method Detail

load

public boolean load(java.io.BufferedReader in)

Read a geometry file containing a set of geometries or animations.

After successful parsing retrieve the loaded geometries or animations using the methods getGeometries() respectively getAnimations() depending on the return value of the method isAnimation().

Specified by:

load in interface PgLoaderIf

Overrides:

load in class PgAbstractLoader

Parameters:

in - BufferedReader to read textual data from.

Returns:

true if parsing was successfull.

See Also:

PgAbstractLoader.getAnimations(), PgAbstractLoader.getGeometries(), PgAbstractLoader.isAnimation()

Author:

Konrad Polthier

Version:

25.03.04, 1.00 created (kp)

readSpecial

public static PgGeometryIf[] readSpecial(java.lang.String fileName)

Read JVF geometry file in JavaView JVF file format.

Author:

Konrad Polthier

Version:

13.03.2018, 1.00 created (kp)

write

public boolean write(java.io.Writer writer,
                     PgJvxSrc[] geom)

Write all geometries in a XML tree structure of instances of type PsXmlNode and into a writer.

Specified by:

write in interface PgLoaderIf

Overrides:

write in class PgAbstractLoader

Parameters:

writer - Write all data to this stream

geom - Array with geometries to save

Returns:

true on success.

See Also:

PgAbstractLoader.read(BufferedReader), PgAbstractLoader.write(DataOutputStream, PgJvxSrc [])

Version:

25.03.04, 1.00 created (kp)

parseFunList

public static java.lang.String[][] parseFunList(PsXmlNode parentNode,
                                                java.lang.String type,
                                                java.lang.String[] attr)

Parse an array of PsXmlNodes of same element type, where each element has data consisting of a blank separated list of functions to be interpreted.

Parameters:

parentNode - parent node containing a set of color nodes as children

type - type of elements in array

attr - array of attributes the vector might have, may be null.

Returns:

parsed string array, or null if failed

Version:

25.03.04, 1.00 created (kp)

getRsrcAsDoubleF

public static double getRsrcAsDoubleF(PsXmlNode rsrcNode,
                                      java.lang.String type)

Get content of node in resource tree with given element type by searching from given node. Method assumes that content is formated as double and does some checking.

Parameters:

rsrcNode - node whose descendants are searched including itself

type - element type of node to be searched

Returns:

content of resource if resource is found, else default value 0.