JaGrLib: change-log

To do:

This section is obsolete and will not be updated! Recent todo list is maintained in ./doc/todo.txt file (in Czech)

This section is obsolete and will not be updated! Recent technical news can be found in Version.java Javadoc comments.

0.20-0.22 (2003/09/29):

GUI editor was developed! Thanks to Jan Kostlivý (GUI is still in heavy development).
Several new packages and many new source files were introduced.
JaGrLib source tree is now completely maintained by Subversion Tigris (SVN).
"svn://cgg.mff.cuni.cz/JaGrLib/" is available for public use (read-only repository).
Contributors should use "svn+ssh://cgg.mff.cuni.cz/svn/JaGrLib/".
All scripts were updated for plain JDK 1.4 development (compile.bat, doc.bat, run.bat, ..)

0.13 (2001/05/09):

BinaryOperation: more readable set-operation names
MicroFacet: assertion of intersection attributes was redesigned (with help of Solid and SceneNode)
RasterImage: needs double color values between 0.0 and 255.0
TrMatrix: many transform-construction methods added
interface GraphicsViewer: preview of raster- or vector- graphics output
Template.CAT_* values were changed and renamed to C_*
class RasterImagePreview: 1st version
class Main03: ray-tracing using RasterImagePreview
class Semaphore: inter-thread synchronization ("producer - consumer" paradigm)
SimpleSynthesizer: another output Plug was added (to trigger repainting of output image)
BitStream: closer co-operation with Java's InputStream and OutputStream will be possible
Template: optional plugs /newOptInputPlug(), newOptOutputPlug()/
class JavaBitStream: 1st version (tested on JFIF output)
BitStream: LSB instead of MSB
interface DataFileFormat: I/O filter for data file formats
class JFIFFileFormat: 1st version
RasterGraphics, RasterImage: setBufferedImage()
all Main* classes: usage of "worker" threads, RasterImagePreview and JFIFFileFormat
Main.* was renamed to Main00.*
Template: preparePlugs() - more clear way to connect plugs both in Piece instance and in its template(s)
class RayTracing extends RayCasting: 1st version (with no transmitted light yet)
RayCasting, RayTracing: check fo color overflow

0.12 (2001/05/02):

class Sphere: 1st version
class Geometry: EPSILON, INFINITY, vectorProduct, ...
interface LightModel: another changes (normal vectors, color assignment)
class TrMatrix: another transformation methods, matrix multiplication and inversion
interface SceneNode: backward transforms were added
merge routine MicroFacet.booleanOp()
ray-scene intersections (CSGCommonNode, CSGNode, CSGLeaf)
class StaticCSGScene: 1st version
interface TimeDependent: used in ImageFunction, ImageSynthesizer, RTScene
class StaticCamera: 1st version
Geometry: several geometric and arithmetic routines were added
class StaticPointLightSource: 1st version
class AmbientLightSource: 1st version
class PhongModel: 1st version
class SimpleSynthesizer: 1st version
class RayCasting: 1st version
MicroFacet.assertAttributes(): improved, more attributes are handled
LightModel.createMaterial(): reflected in PhongModel, material-data object implements Property
class Main02: test program for ray-casting (union of 2 spheres, 2 light sources)
interface SceneNode: parent-handling routines
fixed error in RasterImage.setHLine(int,int,int,double[])
class CSGNode: cache for inverted transform matrices

0.11 (2001/04/18):

0.10 (2001/03/21):

0.09 (2001/03/15):

0.08 (2001/02/28):

0.07 (2001/01/07):

0.06 (2001/01/06):

small change in interface Property
interface Render extends Property (for general property settings)
Render.LINE_JOIN, Render.LINE_CAP, Render.LINE_WIDTH, PolygonRender.POLY_INSIDE
fixed bug in RasterImage.getPixel() and ..setPixel()
class AlphaMatrix: simple 2D byte-array, no binary operations yet
interface AlphaOperation: codes for all 12 binary alpha-channel compositing operations
setAlphaOperation() added to: RasterGraphics, AlphaMask, Pen, Brush
class SolidColorBrush: pilot SolidBrush implementation

0.05 (2000/12/05):

0.04 (2000/11/24):

java -jar jagrlib.jar
interface ValueTransferFunction was extended (to cover more color-translation tasks)
interface BitStream, ColormapStore, Order2D, QuadTree
changes in makefile.jmk, doc.bat, pack.bat (development is now possible both in jBuilder 4.0 and JDK 1.3 + jEdit + JMK)
interface EntropyCodec, EntropyHistogram
interface Channel, Plug (they hide implementation details and allow better versatility)
implementations: BasicChannel (multi-channel property), BasicPlug (internal Plug)
interface Trigger

0.03 (2000/11/07):

minor changes in the Web-site
Plug and Template compatibility tests
"building block templates" - Mesh, Template
jBuilder 4.0 Foundation (JDK 1.3) environment
first BitMask implementation (X-transition list data structure)
first RasterGraphics implementation (using Java's BufferedImage)
first command-line test program Main.java (draws random Bresenham line segments, saves output to JPEG file)

0.02 (2000/10/30):

details of vector format: VectorCommand, VCommand and its inner classes, interface VectorGraphics
interface BinaryOperation, ValueTransferFunction
details of raster output format: interface RasterGraphics
interface TextRender (textExtent, kerning, textPath, createFont, getFont, putFont, ..)
BitMask.bitBlt(), RasterGraphics.bitBlt()
interface StrokeCallback, FillCallback
VectorCommand.execute()

0.01 (2000/10/27):

first WWW pages, on-line JavaDoc browsing
basic JaGrLib concepts: Piece, Plug, Channel
vector format concept
sample interfaces: BitMask, AlphaMask, LineRender, LineXRender, CubicCurveRender, CubicCurveXRender, CircleRender, etc.
Piece specimen: LineBresenham
links from JavaDoc into source tree (*.java)
jEdit + JMK environment