jvx.loader

Class PgBdLoader

java.lang.Object

jv.loader.PgAbstractLoader

jvx.loader.PgBdLoader

All Implemented Interfaces:

PgLoaderIf

public final class PgBdLoader
extends PgAbstractLoader

Reads a build file '*.bd' and fills information in PgMacroPatch. Class is later queried by an application for macro patches. An application is responsible to generate actual geometries, like triangulations, out of a macro patch.

Each macro patch may be bounded by simple straight lines or by curves with sophisticated boundary constraints to be used in calculus of variations. See description of the file format '*.bd' for more details.

Author:

Konrad Polthier

Version:

22.03.10, 3.00 revised (kp) Superclass changed to PgAbstractLoader.
06.10.03, 2.65 revised (kp) Interface extended by isEnabledOptimization().
19.04.03, 2.60 revised (kp) Interface extended by setGeometryOption().
05.03.03, 2.50 revised (kp) Moved to package jvx.loader from jv.loader.
21.08.02, 2.20 revised (kp) New methods getGeometries/getAnimations of PgLoaderIf implemented.
23.09.01, 2.10 revised (kp) Implement PgLoaderIf extended with methods for display options.
11.06.01, 2.00 revised (kp) Implement PgLoaderIf.
28.08.99, 1.10 revised (kp) Name changed from PgBuildFile to PgBdLoader.
00.00.98, 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
PgBdLoader()

Method Summary

Modifier and Type	Method and Description
int	getNumPatches() Get number of macro patches found in the build file.
PgMacroPatch	getPatch(int anInd) Return the macro patch with given index.
PgGeometryIf[]	getSpecializedGeometries() Return the loaded geometry in a more specialized class.
PgJvxSrc[]	read(java.io.BufferedReader in) Read an inhouse BD geometry file and return an array with a single surface.
PgElementSet[]	readElementSet(java.io.BufferedReader in) Read bd-file into an array of macro patches, then merge the generated element sets into a single element set.

Methods inherited from class jv.loader.PgAbstractLoader

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

Methods inherited from class java.lang.Object

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

Constructor Detail

PgBdLoader

public PgBdLoader()

Method Detail

getSpecializedGeometries

public PgGeometryIf[] getSpecializedGeometries()

Return the loaded geometry in a more specialized class. This method allows a loader to return a geometry class which best fits the data found in a geometry file.

The loader manager jv.loader.PgLoader in JavaView will first check if a loader returns specialized geometries, and if not, check for a data supplied in a container class PgJvxSrc.

This method may be called after successful parsing an input stream with the method load(BufferedReader) and if isAnimation() returns false.

Specified by:

getSpecializedGeometries in interface PgLoaderIf

Overrides:

getSpecializedGeometries in class PgAbstractLoader

Returns:

Array of element sets.

Since:

JavaView 2.53

See Also:

PgAbstractLoader.getGeometries()

Author:

Konrad Polthier

Version:

06.03.03, 1.00 created (kp)

getNumPatches

public int getNumPatches()

Get number of macro patches found in the build file.

getPatch

public PgMacroPatch getPatch(int anInd)

Return the macro patch with given index.

read

public PgJvxSrc[] read(java.io.BufferedReader in)

Read an inhouse BD geometry file and return an array with a single surface. All interior boundaries are removed.

The returned array of geometry may contain keyframes of an animation. This is checked with the method isAnimation().

Alternatively, one may call load(BuffereredReader) followed by getGeometries() resp. getAnimations() to have a finer control about which information one wants to use from a source. For example, optional display information must be retrieve by a subsequent call getDisplayOption() if available.

Specified by:

read in interface PgLoaderIf

Overrides:

read in class PgAbstractLoader

Parameters:

in - BufferedReader to read textual data from.

Returns:

Array of JVX geometries.

See Also:

PgAbstractLoader.write(Writer, PgJvxSrc [])

Author:

Konrad Polthier

Version:

25.06.01, 1.20 revised (kp) Remove interior boundaries after loading, i.e. call close().
10.06.01, 1.10 revised (kp) Return an array instead a single geometry.
20.02.01, 1.00 created (kp) Method body from former version read(String fileName).

readElementSet

public PgElementSet[] readElementSet(java.io.BufferedReader in)

Read bd-file into an array of macro patches, then merge the generated element sets into a single element set.

Version:

15.05.06, 1.20 revised (kp) Method body reorganized.