changelog.txt

JAVA写成的图表程序,有曲线图

Copyright (c) 1999-2000  J. David Eisenberg
All rights reserved.

Revision History

  Bug fix (1 December 2000)
     * Changed TestEncoder.java so that it will draw
	   the clock image on the first pass.

  Changes from v1.3 -> 1.4 (11 April 2000)
     * Changed from GPL to LGPL

  Changes from v1.2 -> 1.3.1: (6 April 2000)
     * Now using DeflaterOutputStream instead of Deflater
       from java.util.zip
       - this fixes a bug with compression level of zero
     * Added PngEncoderB class to handle buffered images
       with 8-bit samples and IndexColorModel

  Changes from v1.1 -> 1.2: (25 Nov 1999)
  
     * Implemented filtering (SUB and UP filters)
     * TestEncoder.java now accepts arguments to set
       alpha, filtering, and compression level
     * Moved documentation to new directory
     * Removed old documentation "images" directory

  Changes from v1.0 -> 1.1:
  
     * fixed bug in calculation of how many rows to process
       during scanline compression
     * took out code for multiple IDAT chunks, as I am either
       doing it incorrectly, or PhotoShop & Netscape can't
       handle it properly.
     * added alpha encoding