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gdal库的学习文档

  - New readonly non-spatial MySQL driver implemented.

MITAB Driver:
  - Updated from upstream, several fixes.

TIGER/Line Driver:
  - Fixed serious bug with handling <span class="stringliteral">"full"</span> records at end of .RT2 file. 

OCI/Oracle Driver:
  - Added OCI_FID environment support to control FID selection.

OGRGeometry:
  - Added Centroid() implementation (from GEOS?)

 =============================================================================

GDAL 1.2.3 - Overview of Changes
--------------------------------

GeoTIFF Driver:
    - Fixed many missing compression codecs when built with the internal 
      libtiff.
    - Modified driver metadata to only list available compression types.

DODS Driver:
    - Added support for OPeNDAP version after 3.4.x (use of opendap-config).

GRASS Driver:
    - Fixed support for building with grass57.

MrSID Driver:
    - Fixed support for MrSID Encoding SDK. 

NITF Driver:
    - Fixed serious bug with non-square output files.


OGR 1.2.3 - Overview of Changes
-------------------------------

OGRSpatialReference:
    - Corrected memory leaks - OSRCleanup() cleans up temporary tables.
    - Fixed build problem with ogrct.cpp on Solaris. 

TIGER Driver:
    - Improved generality of support for GDT files.

OGRGeometry:
    - Added getArea() method for rings, polygons and multipolygons. 

 =============================================================================

GDAL 1.2.2 - Overview of Changes
--------------------------------

GRASS Driver: 
    - Add Radim's version of the driver submitted by Radim.  This version
      uses GRASS 5.7 libraries directly instead of using libgrass. 

DODS Driver:
    - Added support for spatial_ref, FlipX and FlipY .das info.

CPG Driver:
    - added new driver for Convair Polarimetric format. 

HDF Driver:
    - Significant bugs fixed. 

USGS DEM Driver:
    - Support writing UTM projected files.

PNG Driver:
    - Upgraded to libpng 1.2.6. 

MrSID Driver:
    - Substantial performance improvements. 
    - Support for DSDK 4.x 
    - Support JPEG2000 files via MrSID SDK. 

NITF Driver:
    - Support JPEG2000 compressed files (with Kakadu support)

ESRI BIL:
    - Support .clr color files.

VRT Driver:
    - Added support for describing raw files with VRTRawRasterBand. 
    - Added support for virtual warped files with VRTWarpedRasterBand.

GeoTIFF Driver:
    - Fix support for 16bit image color tables. 
    - Write ExtraSamples tag for files with more samples than expected
      in photometric interpretation. 
    - External overviews now built for read-only files. 

Erdas Imagine Driver:
    - Fixed support for compressed floating point layers. 
    - Various other fixes for compatible with newer Imagine versions.
    - improved metadata handling.

gdal_merge.py:
    - sets projection on output file.


OGR 1.2.2 - Overview of Changes
-------------------------------

SQLite Driver:
    - New read/write driver implemented for SQLite databases.

CSV Driver:
    - New read/write driver implemented for comma seperated value files.

S-57 Driver:
    - Substantial performance improvements.

ODBC Driver:
    - Arbitrary length field values now supported. 

GEOS:
    - Integration a series of methods utilizing GEOS when available.  Note
      that Intersect() is still just an envelope comparison.

OGRSpatialReference:
    - Fixed Swiss Oblique Mercator support. 

 =============================================================================

GDAL 1.2.1 - Overview of Changes
--------------------------------

gdal_contour:
    - Now build and installed by default.

HDF4 Driver:
    - Added some degree of HDF-EOS support.  HDFEOS layer now part of GDAL.

DODS Driver:
    - Substantial fixes, support for flipped datasets.  

HFA (Erdas Imagine) Driver:
    - Fixed bug with files between 2 and 4GB.
    - Capture statistics as metadata.

Erdas 7.x LAN/GIS Driver:
    - Newly implemented.

USGS DEM Driver:
    - Various fixes to creation support / CDED product.

NITF Driver:
    - Capture USE001 and STDIDC TREs as metadata.
    - Capture all sorts of header information as metadata.
    - Support geocentric corner coordinate specification.

MrSID Driver:
    - Support added for DSDK 4.0.x.

ECW Driver:
    - Added preliminary support for using 3.0 SDK for JPEG2000 support. 
    - Fix oversampling assertion problem.

ArcInfo Binary Grids:
    - Added support for 0x01 and 0x20 block type.


OGR 1.2.1 - Overview of Changes
-------------------------------

OGRSpatialReference:
    - Various fixes related to prime meridians.

PostgreSQL/PostGIS Driver:
    - Added layer name laundering. 
    - Launder names on by default.
    - Clean stale entries in geometry_columns table when creating a layer.
    - Support treating names views as layers.
    - Handle long command strings.

S57 Driver:
    - Fixed serious bugs with support for auto-applying update files.
    - Improvements to S57 writing support.
  
 =============================================================================

GDAL 1.2.0 - Overview of Changes
--------------------------------

Configuration:
    - Libtool used by default with Unix style builds.  Use --without-libtool
      to avoid this. 
    - PROJ.4 can now be linked statically using --with-static-proj4.
    - Added --without-bsb option for those averse to legal risk.

DODS/OPeNDAP Driver:
    - Preliminary DODS (OPeNDAP) driver implemented (James Gallagher @ URI).

PCIDSK Driver:
    - PCIDSK read/write raster driver implemented (Andrey).

Erdas Imagine / HFA Driver: 
    - Support recent Imagine versions (data dictionary changes).
    - Better logic to search for .rrd file locally.
    - Support creating files in the 2GB to 4GB size range.

GIF Driver: 
    - Updated to libungif 4.1.0. 
    - Various hacks to try and identify transparent colors better.

BMP Driver: 
    - Handle 32bit BMPs properly.

HDF4 Driver:
    - Added proper support for multi-sample GR datasets. 
    - Various fixes and improvements for specific product types.

GeoTIFF Driver: 
    - Added PHOTOMETRIC option to control photometric interp of new files.

JPEG2000/Kakadu Driver: 
    - Support reading/creating lossless 16bit files. 
    - Updated to support Kakadu 4.1 library.

NITF Driver: 
    - Implement support for IGEOLO=<span class="stringliteral">"U"</span> (MGRS/UTM) coordinates. 
    - Added overview (as external GeoTIFF file) support.

MrSID Driver: 
    - Support DSDK 4.2.x. 

PNG Driver:
    - Support required byte swapping of 16bit PNG data. 

FAST Driver:
    - lots of fixes, supports more datums and ellipsoids. 

NetCDF Driver: 
    - New driver implemented for netCDF support. 
    - Pretty much tied to form of netCDF used in GMT for now. 

VTerrain .bt Driver: 
    - New driver for VTerrain .bt elevation format.

ECW Driver:
    - support supersampled reads efficiently. 
    - special case for dataset level RasterIO() implemented for much better
      performance in some applications. 

ESRI BIL (EHdr) Driver:
    - Support world files.

VRT Driver: 
    - Implement filtering support. 

GIO (Arc/Info Binary Grid via avgridio.dll): 
   - Driver disabled ... to undependable. 


Python:
    - Preliminary support for numarray in addition to numpy (Numeric). 

Contouring:
    - New gdal_contour utility program implementing contour generation.  
    - Underlying algorithm in gdal/alg.  

Warping:
    - Improved support in <a class="code" href="gdal__alg_8h.html#816819e7495bfce06dbd110f7c57af65">GDALSuggestedWarpOutput</a>() for <span class="stringliteral">"world"</span> sized
      files that are only partially transformable. 
    - Bicubic resampler improved. 
    - What was gdalwarptest is now gdalwarp, and the old gdalwarp is now
      gdalwarpsimple.  The sophisticated warper is now the default.

Man Pages: 
    - Man pages for GDAL utilities now being maintained and installed (Silke).

 

OGR 1.2.0 - Overview of Changes
-------------------------------

OGRSpatialReference:
   - Added methods for converting to/from GCTP representation.
   - Added HOM 2 points on centerline variant. 

DODS (OPeNDAP) Driver:
   - Preliminary implementation.

TIGER/Line Driver: 
   - Added support for GDT ASCII TIGER-like format. 
   - Support TIGER/Line 2003 format. 

S-57 Driver:
   - Preliminary export support implemented. 
   - Support capture of FFPT (feature to feature) linkages.
   - Support capture of TOPI from VRPT.
   - Support capture of primitives as additional layers. 

Shapefile Driver:
   - gdal/frmts/shapelib removed from GDAL source tree, now just a 
     copy of required shapelib files are kept in gdal/ogr/ogrsf_frmts/shape. 
   - Attempt identify polygons that are really multi-polygons and convert them 
     into multi-polygons properly (Radim Blazek).
   - Create FID attribute in .dbf file if no attribute added by application.

GML Driver:
   - Lots of fixes and improvements for reading and writing. 
   - Now writes a schema file by default. 
   - Field types are set now when reading based on data found on first pass.
   - Added support for the various kinds of geometry collections.

DGN Driver:
   - Now using dgnlib 1.9 - this carries with it various new element types
     and some important bug fixes.

ODBC Driver:
   - New ODBC driver implemented.  Build by default on Windows, and buildable
     on Unix (with unixodbc). 

VRT Driver: 
   - New <span class="stringliteral">"virtual"</span> OGR Datasource format implemented.  
   - Configuration stored in XML control file. 

Oracle (OCI) Driver:
   - support reading views. 

OGR Core:
   - Added support for WKT EMPTY geometry objects (like <span class="stringliteral">"MULTIPOINT(EMPTY)"</span>).
   - Added DeleteFeature() method on OGRLayer class.  

NTF Driver: 
   - Support CHG_TYPE attribute for landline plus product. 



 ==============================================================================

GDAL 1.1.9 - Overview of Changes
--------------------------------

 o MrSID Driver: New for 1.1.9, read-only, includes good coordiante system
   support, and should be high performance. 

 o ECW Driver: Now reads coordinate system information (but doesn't write). 

 o HDF Driver: Added support for Hyperion Level 1, Aster Level 1A/1B/2, MODIS 
   Level 1B(earth-view)/2/3, SeaWIFS Level 3. 

 o L1B Driver: Now reads GCPs for georeferencing.

 o NITF Driver: Support for reading RPC, variety of bugs fixes for reading and
   writing.  Also some general RPC infrastructure added to GDAL.

 o JP2KAK Driver: Can be used with Kakadu 4.0.2 now.  Compatibility fixes
   for internal geotiff to improve compatibility with Mapping Science tools.
   Added palette support. 

 o HFA (Imagine) Driver: Added read/write support for color table opacity.
   Added write support for large (spill) files. 

 o <span class="stringliteral">"core"</span> directory renamed to <span class="stringliteral">"gcore"</span> to avoid confusing configure script.

 o Added support for GDAL_DATA environment variable to point to GDAL support
   data files (those in gdal/data directory).

 o Added <a class="code" href="classGDALDataset.html">GDALDataset</a>::RasterIO() for more efficient reading of multiple bands
   in one request (in some cases anyways). 

 o High performance warp api considered to be complete now, and substantially
   optimized.

 o gdal_merge.py: supported multiple bands, copying PCT. 


OGR 1.1.9 - Overview of Changes
-------------------------------

 o Oracle Spatial: New generic read/write, and implemented highly optimized
   loading support. 

 o Tiger driver: added support for TIGER/Line 2002 product.

 o GML driver:  now supports Xerces versions from 1.6 up to 2.3.  Lots of
   bugs fixes and improvements.   GML Geometry now in OGR core. 

 o Improved support for translating to and from ESRI WKT, including a complete
   mapping between EPSG related ESRI datum names and OGR's expected names. 

 o Improved support for alternate prime meridians in coordinate system code.

 o Shapefiles: Can write features with NULL geometry, 

 o DGN: added 3d write support. 

 o Implemented generic attribute indexing support (only used for shapefile
   at this point).  Use in SQL where clauses and ExecuteSQL(). 

 o WKT MULTIPOINT in/out formatting fixed.