history.txt

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MITAB Library - Revision History
================================

This is a human-readable revision history which will attempt to document
required changes for users to migrate from one version of MITAB to the
next.  Developers are strongly encouraged to document their changes and
their impacts on the users here.  (Please add the most recent changes to 
the top of the list.)

For a complete change history, please see the CVS log comments.


CHANGES - Current Version:
--------------------------


Version 1.5.1 (2006-07-25)
--------------------------

- Fixed initialization of MBR of TABCollection members (bug 1520)

- Added mapping for datum name "North_American_Datum_1927". 

- Fixed problem with uninitialized affine parameters written to .MAP header, 
  resulting in files not readable in MapInfo, introduced by bug 1155 in 
  MITAB 1.5.0 (bug 1254, 1319)

- Fixed problem writing PLINE MULTIPLE to TAB format introduced in
  MITAB 1.5.0 (bug 1466).

- tab2tab: Set dataset bounds only after setting spatialref to prevent
  default coordsys bounds from taking precedence when bounds are 
  available in source dataset (bug 1511)

- Coordsys false easting and northing are in the units of the coordsys, not
  necessarily meters.  Adjusted mitab_coordsys.cpp to reflect this. 
  http://bugzilla.remotesensing.org/show_bug.cgi?id=1113

- Similar problem in mitab_spatialref.cpp for TAB files also fixed. 
  http://bugzilla.remotesensing.org/show_bug.cgi?id=1113



Version 1.5.0 (2006-02-16)
--------------------------

- Updated contrib/mitab_dyn.pas with new C API functions. Note that other
  definition files for VB and .NET have *not* been updated for this release.

- Fixed crash when attempting to write TABPolyline object with an invalid
  geometry (GDAL bug 1059)

- cast strstr() results as per email from Charles Savage for VC8.

- Fixed build problem (link with -ldl not available) on MacOSX (bug 1167)

- Fixed problem with white space parsing in mitab_miffile.cpp (bug GDAL:954)

- layers with just regions can't be set as type wkbPolygon because they may
  have multipolygons (bug GDAL:958)
    http://bugzilla.remotesensing.org/show_bug.cgi?id=958

- Fixed support for multi character delimiters in .mid file (bug 1266)

- Fixed reading Mills.mif (TABPoint::ReadGeometryFromMIFFFile()), the check
  for SYMBOL didn't check if pszLine was non-NULL.

- Fixed memory leak of m_pszDelimiter in mitab_middatafile.cpp.

- Fixed OGR problems with setting bounds on MIF files, and wrong bounds
  on tab files (bug 1198)


Version 1.5.0-beta1 (2005-10-07)
--------------------------------

- Added read/write support for MapInfo Collections in MIF and TAB (bug 1126)
  (Thanks to funding from Comcast (Andy Canfield) and an initial patch and
   analysis of collections by Jim Hope of Innogistic Software)

- New C API methods to access collection members (bug 1126):
     - mitab_c_get_collection_region_ref()
     - mitab_c_get_collection_polyline_ref()
     - mitab_c_get_collection_multipoint_ref()
     - mitab_c_set_collection_region()
     - mitab_c_set_collection_polyline()
     - mitab_c_set_collection_multipoint()

- Support for writing affine projection params in .MAP header (AJD, bug 1155)

- New C API methods to get/set various projection parameters (AJD, bug 1155):
     - mitab_c_get_projection_info()
     - mitab_c_set_projection_info()
     - mitab_c_get_datum_info()
     - mitab_c_set_datum_info()
     - mitab_c_get_affine_params()
     - mitab_c_set_affine_params()

- All datum definitions in mitab_spatialref.cpp now have the correct 
  names (Anthony D, bug 1155)

- Added bounds entries for Finnish KKJ and Swedish projections (AJD, bug 1155)

- mitab_ogr_datasource.cpp: avoid leak of CPLReadDirectory() result.

- gcc4 related warnings in mitab_coordsys.cpp and mitab_utils.cpp avoided.

- Change the way \n and \ are handled internally. Now they are stored 
  unescaped in memory and escaped only when writing MIF files. (bug 1107)

- Improved handling of Danish modified TM proj#21-24 (HSS, bugs 976,1010)

- Upgraded CPL and OGR source from latest GDAL CVS (as of 2005-05-12)

- Produce a fatal error if creating an index of a size that exceeds the
  .IND file format limitation (tree depth > 255) (OGR Bug 839)

- Added mitab_c_set_symbol_angle() and mitab_c_get_symbol_angle() for
  point symbols of type TABFC_FontPoint (bug 1002)

- Added rule in cpl/GNUmakefile to copy cpl_config.h from cpl_config.h.in. (FW)

- Changed to use OGRLayers spatial filtering support.  (FW)

- A few fixes to support for modified TM projections #21-24 (AJD, bug 1155)

- Fixed missing initialization of default .MID file delimiter ("\t") 
  (Anthony D - bugs 1155 and 37)


Version 1.4.0 (2005-04-01)
--------------------------

 - Added bounds entry to match datum 1011 based on MapInfo's "Svenska 
   rikssystemet, 2,5 gon väst (RT 90 7 parametrar)" (bug 997)

 - Added initial version of .NET bindings, contributed by Graham Sims in
   mitab/contrib/dotnet directory (bug 992)

 - Added support for Datum Id field in .MAP header, this is new in MapInfo
   7.8+ and solves problem with multiple datums with same params (bug 910) 

 - Fixed internal integer coordinates rounding error (bug 894)

 - Fixed potential memory leaks in error conditions in mitab_feature.cpp
   and mitab_rawbinblock.cpp (bug 881)

 - Support pen width bigger than 7. Note that any pen bigger than 10 are 
   considered as point, not pixel. (bug 683)

 - Updated list of datum parameters from data made available by Bill Wemple
   from MapInfo on directionsmag.com: 7 new datum defns and 1 fixed.
   List of ellipsoids also updated (Bug 608, patch by Uffe K.)

 - Do not output a BG color in style string for transparent brushes (bug 693)

 - mitab_tabfile.cpp: Several fixes for TABFile::Open() when loading the
   tabfile fails. (provided by Stephen Cheesman). 

 - mitab_mapfile.cpp: Fixed error return value in LoadNextMatchingObjectBlock()
   per http://bugzilla.remotesensing.org/show_bug.cgi?id=615. NFW

 - mitab_ogr_datasource.cpp: Modified CreateLayer() to use 
   -1000,-1000,1000,1000 bounds for GEOGCS much like in mitab_bounds.cpp. 
   This ensures that geographic files in the range 0-360 works as well as
   -180 to 180.


Version 1.3.0 (2004-07-07)
--------------------------

 - Use tab as default delimiter (if none is explicitly specified) when 
   reading .MIF/.MID files (Anthony D, bug 37)  We still generate new files 
   using comma as delimiter.

 - C API: Added mitab_c_get_feature_count() and mitab_c_get_field_as_double(),
   added ability to create a feature of type TABFC_NoGeom (Anthony D)

 - Added support for reading affine coordsys parameters in extended 
   .map header block of v500+  (Anthony D, bug 41)

 - Added mitab_c_getlibversion() to C API. (Uffe K. - bug 21)

 - Write 3D geometries to MIF/tab as if they were 2D. NFW

 - Flush out .mif header on Close() if no features written. NFW

 - Fixed previous flushing logic to only do so for writable files. NFW

 - Removed obsolete mif2mif.cpp mif2tab.cpp mif2tabbatch.cpp.  They are
   all replaced by the more up to date tab2tab.cpp

 - Modified the OGR creation logic to properly support creating single
   files sets rather than directories full of files.  NFW

 - Fixed memory leaks with seamless tab files (bug 283)

 - Call CPLReadLine(NULL) in MIDDATAFile::Close() to cleanup working buffer.

 - Removed special bailout for m_poMAPFile == NULL in TABFile::Close().
   It is important to cleanup other used memory.

 - mitab_coordsys.cpp: fixed small memory leak for non-earth coordinate
   systems.  (bug supplied by Stephen Cheeseman, Geosoft). 

 - Added mitab_c_load_coordsys_table() to C API (bug 469)

 - mitab_ogr_datasource.cpp: Don't report single layer that hasn't been
   "created" yet via GetLayerCount().  Fixes up single file generation issues.


Version 1.2.4 (2003-07-23)
--------------------------

 - Added 'indexed' and 'unique' parameters to mitab_c_add_field().
   Applications written for older versions of the C API will have to 
   be updated to pass these two new parameters.

 - Ensure that a blank line in a mid file is treated as one field containing
   an empty string instead of being zero fields.  NFW

 - Fixes to support mif/mid files produced by Geomedia V5 (bug 1631):
    - Do not produce an error if .mid data records end with a stray ','
    - Treat tabs (\t) as a blank space delimiter when reading coordinate 
      values in .mif file

 - Fixed sign of rotation parameters in TOWGS84 parameters in WKT.  MapInfo
   uses EPSG 9607's 7 parameter datum shift method, but TOWGS84 is defined
   to hold EPSG 9606 style parameters.  Only the rotational signs differ. NFW

 - Fixed spelling of Provisional_South_American_Datum_1956 in datum list. NFW

 - Fixed bug parsing ellipsoid out of CoordSys strings for coordinate
   systems with datum 999 or 9999. NFW

 - Fixed leak of TABMAPObjHdr when writing NONE geometries in SetFeature().

 - Increased MIF reader line buffer size to 10000 chars

 - Added support for writing TABFC_NoGeom (NONE) geometries via the C API.

 - Fixed crash when reading .mif file that doesn't contain a DATA line
   (Thanks to Riccardo Cohen for the fix).

 - Implement DeleteDataSource() method on the driver object. NFW

 - mitab_spatialref.cpp, mitab_coodsys.cpp: Fixed up regional mercator logic.
   It was screwing up transverse mercator with non-zero latitude when writing
   to tab, and wasn't being written properly to .mif. NFW

 - mitab_feature.cpp: fixed C++ style true/false where TRUE/FALSE required.
   As per GDAL bugzilla 311.  NFW

 - Fixed problem scanning node in TABINDNode::FindNext() - bug 2176, FW


Version 1.2.3 - (2002-10-15)
----------------------------

- Support auto-addition of a dummy "FID" column if TAB files are created
  with no fields, instead of producing an error.  A corresponding change
  has not yet been applied to the MIF driver. NFW

- Fixed lots of places that check for errors by examining CPLGetLastErrorNo().
  A warning will trigger all these places as an error.  Changed to check that
  the last error type was CE_Failure and add a CPLErrorReset() at the 
  beginning of many affected sections.  NFW

- Modified TABGetBasename() (in mitab_utils.cpp) to stop at the first
  forward or backslash otherwise "C:/warmerda/mi\can_caps.tab" will result
  in a basename of "mi\can_caps.tab".   NFW

- Modified datum list in mitab_spatialref.cpp with a bunch of new EPSG/OGC
  datum names provided by Siro Martello from Cadcorp. NFW

- Fix memory leak of m_pszIndex in mitab_miffile.cpp, the poSpatialRef
  in TABFile::SetMIFCoordSys(), and a leak in MITABExtractCoordSysBounds(). NFW

- Added untested support in mitab_spatialref.cpp, and mitab_coordsys.cpp for 
  projections Regional Mercator (26), Polyconic (27), Azimuthal Equidistant - 
  All origin latitudes (28), and Lambert Azimuthal Equal Area - any aspect 
  (29). NFW


Version 1.2.2 - (2002-07-06)
----------------------------

- Added a validation in TABMAPFile::GetFeatureId(). When there's no .map file 
  or no spatial indexes or no geometry, the function return -1 like an Eof.
  This prevent the reading of a file set to NULL. (bug 169 (MapServer))

- Treat Region as MultiPolygon in mitab_c_set_point() to support Regions
  with multiple islands and holes. Passing a part number <= 0 (second 
  parameter in mitab_c_set_point()) will result in adding a new island 
  (i.e. polygon).  By default, parts > 1 are treated as holes in the
  last island (polygon) that was created.

- Added IsInteriorRing() function in the TABRegion class to validate if a ring 
  in a polygon is an external or an internal ring. The function returns 
  true if the specified ring is an interior ring. The function 
  mitab_c_is_interior_ring() in mitab_capi.c has been created too to call 
  IsInteriorRing() if the feature is a region.

- In mitab_mapheaderblock.cpp, the Coordsys2Int() function used integer values 
  to check for overflow. However, in some case, integer was to small and caused
  problems with applications that called SetSpatialFilter() with a filter 
  much larger than the file's bounds.  So, this function now uses doubles 
  internally for comparison, but still returns and receives integers.

- Add SetSpatialFilter function in the TABSeamless class, to use seamless 
  layer in the right way. Now, the filter is applied on each data file and
  on the index file. (Bug 164 (MapServer))


Version 1.2.1 - (2002-05-08)
----------------------------

- Implement SetMIFCoordSys in the MIFFile class. The coordsys was not 
  written when calling mitab_c_create for MIF files because 
  MIFFile::SetMIFCoordSys always returned -1 (Bug 984).

- Added support for TABFC_FontPoint and TABFC_CustomPoint in
  mitab_c_create_feature(), mitab_c_set_points(), mitab_c_set_font() and 
  mitab_c_get_font().

- mitab_capi.h: Use stdcall by default for all public mitab.dll functions
  instead of cdecl.  Should still work fine for C/C++ users, and will
  allow VB/Delphi users to use the same DLL with Bo T.'s interface files.


Version 1.2.0 - (2002-05-03)
----------------------------

- Made changes in TABRelation to avoid an infinite loop. The m_poCurFeature
  object have been deleted and the function GetFeatureRef() have been replace
  by GetFeature(). This new function return a TABFeature object that must be 
  control by the calling method. (bug 706)

- Made important changes in order to support writing objects in 16 bits 
  coordinate format. New TABMAPObjHdr-derived classes are used to hold 
  object info in memory until block is full. 
  This was required in order to fix a problem when very small regions 
  were written in 32 bits coordinates when 16 bits should have been used
  because MBR < 65536.  In this case MapInfo would attempt to rewrite the
  modified object info in 16 bits format while the coordinates blocks are
  still in 32 bits format... resulting in a corrupted the file.
  Note that at this point only feature types that use separate coordinate
  blocks can be saved in 16 bits format (PLINE, MULTIPLINE and REGION).

- Prevent writing of coordinates outside of the +/-1e9 integer bounds.
  If coordinates outside of that range are written then the values are
  written as +/-1e9 instead and a warning (ERROR 503) is produced when 
  the file is closed.  Coordinates outside of the +/-1e9 bounds limits
  seemed to confuse MapInfo.

- Disabled the warning (ERROR 503) when coordinates outside of the +/-1e9
  integer bounds in SetCoordFilter().

- Modified the conversion of double to integer coordinates to fix an old
  problem where coordinates written by MITAB would be a little bit off 
  sometimes compared with the same values written by MapInfo.

- Modified mitab_capi.cpp to correctly produce "point" style arcs from
  mitab_c_set_arc().  It now sets a point geometry ensuring that the
  TABArc::ValidateMapInfoType() method will succeed.  As per DMSG Bug 644. NFW

- Fixed some TABView issues (bug 703): 
  - Support "select * ..." syntax
  - Accept source table names with or without the .tab extension