jvx.loader

Class PgOffLoader

java.lang.Object

jv.loader.PgAbstractLoader

jvx.loader.PgOffLoader

All Implemented Interfaces:

PgLoaderIf

public final class PgOffLoader
extends PgAbstractLoader

Loader for geometry files given in Geometry Center's OFF file format.

Currently, alpha value is only considered as global alpha and not per face (this will be improved when available in JavaView). The last alpha value of an off file is consider the global alpha of the surface.

Author:

Konrad Polthier

Version:

22.03.10, 3.00 revised (kp) Superclass changed to PgAbstractLoader.
25.02.07, 2.10 revised (kp) Now use (1-alpha) as transparency value when reading and writing off files.
15.02.04, 2.00 revised (kp) Export of 2D geometries improved.
06.10.03, 1.95 revised (kp) Interface extended by isEnabledOptimization().
19.04.03, 1.90 revised (kp) Interface extended by setGeometryOption().
03.03.03, 1.80 revised (kp) Order of vertex colors and normals changed, now normals before colors.
21.08.02, 1.70 revised (kp) New methods getGeometries/getAnimations of PgLoaderIf implemented.
23.09.01, 1.60 revised (kp) Implement PgLoaderIf extended with methods for display options.
11.06.01, 1.50 revised (kp) Implement PgLoaderIf.
22.08.99, 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
PgOffLoader()

Method Summary

Modifier and Type	Method and Description
PgJvxSrc[]	read(java.io.BufferedReader in) Read geometry file in Geometry Center's OFF file format.
static PgJvxSrc[]	read(java.lang.String fileName) Read an OFF geometry file and return an array of new geometries.
boolean	write(java.io.Writer writer, PgJvxSrc[] geomArr) Write an array of geometries into an output stream writer.

Methods inherited from class jv.loader.PgAbstractLoader

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

Methods inherited from class java.lang.Object

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

Constructor Detail

PgOffLoader

public PgOffLoader()

Method Detail

read

public static PgJvxSrc[] read(java.lang.String fileName)

Read an OFF geometry file and return an array of new geometries.

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

Parameters:

fileName - Name of file to read textual data from.

Returns:

Array of JVX geometries.

See Also:

write(Writer, PgJvxSrc [])

Author:

Konrad Polthier

Version:

17.08.12, 1.30 revised (kp) Method made static to sync with other loaders.
10.06.01, 1.20 revised (kp) Return an array instead a single geometry.
20.02.01, 1.10 revised (kp) Adjusted to same method of other loaders.
26.07.00, 1.00 created (kp)

read

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

Read geometry file in Geometry Center's OFF file format.

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:

10.06.01, 2.10 revised (kp) Return an array instead a single geometry.
04.03.00, 2.00 revised (kp) Argument geometry removed, just fill private arrays.
22.08.99, 1.00 created (kp)

write

public boolean write(java.io.Writer writer,
                     PgJvxSrc[] geomArr)
              throws java.io.IOException

Write an array of geometries into an output stream writer.

Numbers with absolute value less than PuMath.EPS are shown as zero. This avoids the annoying fact that double precision numbers fill the whole text area hiding the exponent, which hides their small value.

Specified by:

write in interface PgLoaderIf

Overrides:

write in class PgAbstractLoader

Parameters:

writer - Write all data to this stream

geomArr - Array with geometries to save

Returns:

true on success.

Throws:

java.io.IOException

See Also:

read(BufferedReader)

Version:

10.06.01, 1.20 revised (kp) Save array of geometries instead of single geometry.
22.08.99, 1.10 revised (kp) Number with abs value less than PuMath.EPS are shown as zero.
22.08.99, 1.00 created (kp)