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AVCE00 library - Revision History
=================================
Current Version:
----------------
Version 1.3.0 (2005-06-02):
---------------------------
- Applied Carl Anderson's patch to reduce the amount of stating while trying
to discover filename "case" on Unix in AVCAdjustCaseSensitiveFilename.
http://bugzilla.remotesensing.org/show_bug.cgi?id=314
- Fixed leak in AVCE00ReadOpen() when trying to open something that's
not a coverage (bug513)
- Added AVCBinReadObject() to randomly read an object using the index file.
Currently only works for Arcs, info records and polygons. NFW
- Fixed up AVCBinReadObject() to work properly for PC Arc/Info style
coverages. Also fixed to use upper/lower case 'X' for index based on
base file type. NFW OGR Bug#493.
- avc_e00write.c: modified to use VSIMkdir().
- Use record size while reading ARC, PAL, CNT to skip junk bytes. (bug940)
- Fixed parsing of type 40 fields (modified for bug#599) to detect exponent
format with negative exponents (bug#1272)
- Minor fixes in avc_e00gen.c to avoid compile warnings. (NFW)
- Fixed pointer aliasing ("type punning") problem re: gcc 3.3.x. (NFW)
http://bugzilla.remotesensing.org/show_bug.cgi?id=592
Version 1.2.1 (2000-11-25):
---------------------------
- Remove trailing '/' in info directory path when creating the info dir
since mkdir() on some UNIXes doesn't like it.
- Fixed a problem writing arc.dir on NT4 networked drives in an empty dir.
(bugzilla bug#353)
- Fixed E00 parsing to properly handle PAL entries with 0 arcs which happen
to contain a single "0 0 0" entry.
- Fixed E00 generation to correctly format 0-arc PAL records so that
they have a single "0 0 0" (filler) arc record (bug#597)
- Fixed reading of type 40 fields from E00: when a type 40 field is not
stored in exponent format then a decimal format may be used but the
decimal position is shifted to the right in the E00 value. So we have
to shift the decimal point to the left (i.e. divide by 10) as we
interpret the value (bug#599). Really odd!
- Added a hack to remap type 40 fields bigger than 8 digits to double
precision binary floats while generating E00 output (bug#599).
In E00 format, type 40 fields bigger than 8 digits would lose some
digits of precision and double precision floats can carry up to 18
digits of precision.
This hack is enabled using "-DAVC_MAP_TYPE40_TO_DOUBLE" in OPTFLAGS.
- Fixed problem with info/arc####.dat files coming from Windows that
contained '\\' in the data file path. Remap '\\' in path to '/' on Unix.
This problem seems to be new with Arc8 on Windows.
- Fixed args to fseek() call in _AVCBinReadNextTableRec()... how come
we never ran into this before???
Version 1.2.0 (2000-10-17):
---------------------------
- Added Japanese (multibyte characters) support.
- Made validation on new coverage name more flexible (used to accept only
isalnum() chars and '_')
- Added a case to treat pal.adf files with nPrecision==1011 as double prec.
Actually, any file with nPrecision > 1000 is now treated as double prec.
- Switch to MIT-style license
- Added PC Coverage write.
- Added optional -DAVC_IGNORE_RMDIR_ERROR to prevent generation of an error
when AVCDeleteCoverage() fails to delete the actual coverage directory.
- Accept TXT files in AVCCoverWeird that use both PC or V7 TXT structure
Version 1.1.1 (2000-04-01):
---------------------------
- Support double-precision "weird" coverages... previous version assumed that
"weird" coverages were always single precision.
- Fix problem with TX6/TXT object with strings > 80 chars. String has to
be split in 80 chars chunks in E00.
- Made lib more robust to detect corrupted or invalid files in a coverage
directory by checking signature and skipping invalid files.
Version 1.1 (2000-01-10):
-------------------------
- PC Arc/Info Coverage support
- Support for reading "Weird" coverages (a kind of hybrid between PC and
Unix V7 Coverages).
Version 1.0 (1999-12-04):
-------------------------
- Improved parsing of integer values in E00... big numbers in INFO table
headers were sometimes merged and this resulted in unpredictable behavior.
Version 0.6 (1999-08-26):
-------------------------
- Added AVCE00DeleteCoverage()
- Fixed problem with handling of attribs of type 40 in E00 input/output
- Fixed VC++ warnings
- Fixed some memory leaks.
- Fixed a Windows-specific bug: the arc.dir was sometimes overwritten when
several coverages were created by the same process... likely a buffering
issue.
Version 0.5 (1999-06-10):
-------------------------
- Overwrite existing arc.dir entries when necessary while creating INFO
tables.
The problem was that when same coverage name was used twice with the
same info directory... we ended up with 2 sets of tables with the
same names.
This happened if a user deleted a coverage directory using "rm".
In this case, IMPORT71 reuses and overwrites the old table entry with
the same name in the ARC.DIR... our lib now does the same.
- Created NMAKE makefile.vc for Windows
- Tested on Windows
Version 0.4 (1999-05-17):
-------------------------
- Added TXT/TX6/TX7 write support.
- Added RXP write support
- Fixed problem with double precision RPL sections: the second PAL
termination line confused the parser.
- The write library now detects the E00's precision and generate
a coverage using that precision by default when AVCE00WriteOpen()
is called using AVC_DEFAULT_PREC. (That's also the only valid
option.)
- Added a check for maximum coverage name length (13 chars) when creating
a new one. Also force name to contain only alnum() and '_'.
- INFO TABLES: the name of the system attributes (COVER#/COVER-ID) are
now changed to the new coverage name when creating a new
info table.
- Fixed problem parsing an E00 INFO table that contains 0 records
(yes, they exist!)
Version 0.3 (1999-05-10):
-------------------------
- Added support to create coverages from E00 (alpha version). Most file
types are supported, but only single precision has been tested on Linux.
There are still a number of known problems with the write support.
- Added proper support and tested with tables containing 16 bits integers
(type 50, size=2)
- Fixed problem with 8 bytes floats in single-prec. tables, and 4 bytes
floats in double-precision tables.
- Fixed the following problem:
In some cases, the "number of records" field for a table in the
arc.dir does not correspond to the real number of records
in the data file. In this kind of situation, the number of
records returned by Arc/Info in an E00 file will be based
on the real data file size, and not on the value from the arc.dir.
- Tested on a CPL_MSB system
Version 0.2 (1999-02-24):
-------------------------
- Added support for Annotations:
- TXT
- TX6
- TX7 (Handled as TX6)
- Added support for coverages with regions (RXP/RPL sections)
- Tested with routes coverage
- Added support for "par.adf": Double precision coverages have their
tolerances stored in a file named "par.adf" which is different from
the "tol.adf" we find in single precision coverages...
- PRJ section: remove '\r' at end of lines when coverage generated on
DOS systems is read on Unix.
- Support centroids (CNT) with more than one label attached to them.
- Do not skip INFO Tables with 0 records. Since Arc/Info exports them,
we should probably do it as well!
- Changed AVCE00ReadOpen() so that the coverage name does not absolutely
have to be terminated by a "/". Now, you can either pass the name of
the coverage directory (with or without a '/' at the end), or the path
to one of the files in the coverage directory.
- Added extra line after the end of PAL sections in double precision
coverages:
-1 0 0 0 0 0 0
0.00000000000000E+00 0.00000000000000E+00
Even if I consider this second line to be a glitch, I guess I have to
mimic this behavior and add this extra line one as well!
- Modified "avcconv" command-line program to accept an output_filename
as a its second argument. Until now its output was always sent to stdout.
- Updated documentation, mainly the list of error codes.
Version 0.1 (1999-01-31):
-------------------------
First version, supports the most common file types, still several
know problems.
---------
$Id: HISTORY.TXT,v 1.22 2005/06/03 03:29:16 daniel Exp $
|
