438 lines
19 KiB
Text
438 lines
19 KiB
Text
# $Id: CHANGELOG 776 2008-12-7 01:30:27Z dane $
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----------------
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Mapnik Changelog
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----------------
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A simple log of core changes affecting Mapnik usage.
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Developers: Please commit along with changes.
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For a complete change history, see the SVN log.
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Mapnik 2.1.0
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------------
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- New CSV plugin - reads tabular files - autodetecting geo columns, newlines, and delimiters. Uses in-memory featureset for fast rendering and is not designed for large files (#902)
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- Fixed bug in shield line placement when dx/dy are used to shift the label relative to the placement point (Matt Amos) (#908)
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Mapnik 2.0.0
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------------
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- Add minimum-path-length property to text_symbolizer to allow labels to be placed only on lines of a certain length (#865)
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- Add support for png quantization using fixed palettes (#843)
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- Add AlsoFilter functionality - http://trac.mapnik.org/wiki/AlsoFilter
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- SQLite Plugin: optimize i/o using shared cache and no mutexes (#797)
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- Directly link input plugins to libmapnik to avoid having to set dlopen flags from binding languages (#790)
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- Throw an error during registration for fonts which Freetype2 does not report a family or style name (r2985).
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- Fixed quoting syntax for "table"."attribute" in PostGIS plugin (previously if table aliases were used quoting like "table.attribute" would cause query failure) (r2979).
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- Added the ability to control the PostGIS feature id by suppling a key_field to reference and integer attribute name (r2979).
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- Added alternative, more robust proj_transform functions to project a bbox using more points than just the four
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corners to ensure an optimally sized bbox despite proj4 out of bounds conditions. (olt)
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- Added map.base parameter that can be set to control where files with relative paths should be interpreted
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from when a map is loaded from a string or saved to a string. It defaults to an empty string which means
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that the base path will be the current working directory of the mapnik process. When a stylesheet is read
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from a file that files directory is used. And a custom value can still be passed as an argument to
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load_map_from_string().
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- Added python function 'render_grid' to allow conversion of grid buffer to python object containing list of grid
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pixels, list of keys, and a and dictionary of feature attributes.
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- Added new rendering backend, grid_renderer, that collects the attributes of rendered features and
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burns their ids into a grid buffer.
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- Added optional 'maximum-extent' parameter to map object. If set will be used, instead of combined
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layer extents, for return value of map.zoom_all(). Useful in cases where the combined layer extents
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cannot possibly be projected into the map srs or the user wishes to control map bounds without
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modifying the extents of each layer.
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- Support for NODATA values with grey and rgb images in GDAL plugin (#727)
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- Print warning if invalid XML property names are used (#110)
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- Made XML property names use consistent dashes, never underscores (#644)
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- Added support for drawing only first matching rule using filter-mode="first" in Style (#706)
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- Added support to PointSymbolizer ('ignore_placement') for skipping adding placed points to collision detector (#564)
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- Added ability to register fonts within XML using Map level 'font_directory' parameter (#168)
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- TextSymbolizer: Change text_convert to text_transform to better match css naming (r2211)
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- Shapefile Plugin: Throw error if attribute name is requested that does not exist (#604)
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- Upgraded to the latest proj4 string literal for EPSG:4326 (WGS84) as global default projection (#333)
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- Added 'mapnik_version_from_string()' function in python bindings to easily convert string representation
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of version number to the integer format used in 'mapnik/version.hpp'. e.g. '0.7.1' --> 701.
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- Added xinclude (http://www.w3.org/TR/xinclude/) support to libxml2-based xml parser (oldtopos) (#567)
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- Optimized rendering speeds by avoiding locking in the projection code (r2063) (r2713)
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- Added support for setting global alignment of polygon pattern fills (#203)
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- Added support for choosing OGR layer by index number using 'layer_by_index' parameter (r1904)
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- Added support for fractional halo widths (using FT Stroker) (#93)
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- Added support for reading jpeg images (in addition to png/tiff) for image symbolizers (#518)
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- Made libjpeg dependency optional at compile time and added mapnik2.has_jpeg() method to check for support in python (#545).
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- Fixed reading of PostGIS data on Big Endian systems (#515)
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- PostGIS: Added better support for alternative schemas (#500)
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- AGG Renderer - Enforced default gamma function on all symbolizers to ensure proper antialiasing
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even when gamma is modified on the PolygonSymbolizer. (#512)
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- Added ability to read pre 2.0.0 stylesheets, but prints a warning for deprecated syntax (r1592, #501)
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- Rasterlite Plugin: Experimental support for Rasterlite, to practically use sqlite database with wavelet compressed rasters (#469)
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- PNG: fixed png256 for large images and some improvements to reduce color corruptions (#522)
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- Implement MarkersSymbolizer in Cairo render and improve the markers placement finder. (#553)
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Mapnik 0.7.0 Release
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--------------------
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(Packaged from r1574)
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- Core: Fixed linking to external libagg (r1297,r1299)
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- Core: Completed full support for PPC (Big endian) architectures (r1352 -> r1357)
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- Gdal Plugin: Added support for Gdal overviews, enabling fast loading of > 1GB rasters (#54)
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* Use the gdaladdo utility to add overviews to existing GDAL datasets
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- PostGIS: Added an optional 'geometry_table' parameter. The 'geometry_table' used by Mapnik to look up
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metadata in the geometry_columns and calculate extents (when the 'geometry_field' and 'srid' parameters
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are not supplied). If 'geometry_table' is not specified Mapnik will attempt to determine the name of the
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table to query based on parsing the 'table' parameter, which may fail for complex queries with more than
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one 'from' keyword. Using this parameter should allow for existing metadata and table indexes to be used
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while opening the door to much more complicated subqueries being passed to the 'table' parameter without
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failing (#260, #426).
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- PostGIS Plugin: Added optional 'geometry_field' and 'srid' parameters. If specified these will allow
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Mapnik to skip several queries to try to determine these values dynamically, and can be helpful to avoid
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possible query failures during metadata lookup with complex subqueries as discussed in #260 and #436, but
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also solvable by specifying the 'geometry_table' parameter. (r1300,#376)
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- PostGIS: Added an optional 'extent_from_subquery' parameter that when true (while the 'extent' parameter is
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not provided and 'estimate_extent' is false) will direct Mapnik to calculate the extent upon the exact table
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or sql provided in the 'table' parameter. If a sub-select is used for the table parameter then this will,
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in cases where the subquery limits results, provide a faster and more accurate layer extent. It will have
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no effect if the 'table' parameter is simply an existing table. This parameter is false by default. (#456)
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- PostGIS Plugin: Added '!bbox!' token substitution ability in sql query string. This opens the door for various
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complex queries that may aggregate geometries to be kept fast by allowing proper placement of the bbox
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query to be used by indexes. (#415)
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* Pass the bbox token inside a subquery like: !bbox!
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* Valid Usages include:
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<Parameter name="table">
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(Select ST_Union(geom) as geom from table where ST_Intersects(geometry,!bbox!)) as map
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</Parameter>
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<Parameter name="table">
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(Select * from table where geom && !bbox!) as map
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</Parameter>
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- PostGIS Plugin: Added 'scale_denominator' substitution ability in sql query string (#415/#465)
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* Pass the scale_denominator token inside a subquery like: !scale_denominator!
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* e.g. (Select * from table where field_value > !scale_denominator!) as map
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- PostGIS Plugin: Added support for quoted table names (r1454) (#393)
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- PostGIS: Add a 'persist_connection' option (default true), that when false will release
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the idle psql connection after datasource goes out of scope (r1337) (#433,#434)
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- PostGIS: Added support for BigInt (int8) postgres type (384)
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- PostGIS Plugin: Throw and report errors if SQL execution fails (r1291) (#363, #242)
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- PostGIS Plugin: Fixed problem in conversion of long numbers to strings (r1302,1303)
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- PostGIS Plugin: Added missing support for BigInt(int8) postgres datatypes (r1250) (#384)
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- OGR Plugin: Added support for reading multipoint features (#458)
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- Shape Plugin: Fixed bug in file extension stripping (#413)
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- Shape Plugin: Fixed missing compiler flags that causes crashing on newer g++ versions (#436)
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- PNG: Fixed problem with garbled/striped png256 output along sharp edges(#416,#445,#447,#202)
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- PNG: Added support for semi-transparency in png256 output (#477,#202)
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- PolygonSymbolizer: Added 'gamma' attribute to allow for dilation of polygon edges - a solution
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to gap artifacts or "ghost lines" between adjacent polygons and allows for slight sharpening of
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the edges of non overlapping polygons. Accepts any values but 0-1 is the recommended range.
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- TextSymbolizer: Large set of new attributes: 'text_transform', 'line_spacing', 'character_spacing',
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'wrap_character', 'wrap_before', 'horizontal_alignment', 'justify_alignment', and 'opacity'.
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* More details at changesets: r1254 and r1341
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- SheildSymbolizer: Added special new attributes: 'unlock_image', 'VERTEX' placement, 'no_text' and many
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attributes previously only supported in the TextSymbolizer: 'allow_overlap', 'vertical_alignment',
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'horizontal_alignment', 'justify_alignment', 'wrap_width', 'wrap_character', 'wrap_before', 'text_transform',
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'line_spacing', 'character_spacing', and 'opacity'.
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* More details at changeset r1341
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- XML: Added support for using CDATA with libxml2 parser (r1364)
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- XML: Fixed memory leak in libxml2 implementation (#473)
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- XML: Added function to serialize map to string, called 'mapnik.save_map_to_string()' (#396)
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- XML: Added parameter to <Map> called 'minimum_version' to allow for enforcing the minimum Mapnik version
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needed for XML features used in the mapfiles. Uses Major.Minor.Point syntax, for example
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<Map minimum_version="0.6.1"> would throw an error if the user is running Mapnik less than 0.6.1.
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- XML: Added support for relative paths when using entities and 'mapnik.load_map_from_string()' (#440)
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- XML: Made width and height optional for symbolizers using images (r1543)
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- XML: Ensured that default values for layers are not serialized in save_map() (r1366)
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- XML: Added missing serialization of PointSymbolizer 'opacity' and 'allow_overlap' attributes (r1358)
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- XML: Default text vertical_alignment now dependent on dy (#485, r1527)
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- Python: Exposed ability to write to Cairo formats using 'mapnik.render_to_file()' and without pycairo (#381)
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- Python: Fixed potential crash if pycairo support is enabled but python-cairo module is missing (#392)
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- Python: Added 'mapnik.mapnik_svn_revision()' function to svn revision of Mapnik was compiled at.
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- Python: Added 'mapnik.has_pycairo()' function to test for pycairo support (r1278) (#284)
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- Python: Added 'mapnik.register_plugins()' and 'mapnik.register_fonts()' functions (r1256)
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- Python: Pickling support for point_symbolizer (r1295) (#345)
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- Python: Ensured mapnik::config_errors now throw RuntimeError exception instead of UserWarning exception (#442)
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- Filters: Added support for '!=' as an alias to '<>' for not-equals filters (avoids <>) (r1326) (#427)
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- SCons: Improved boost auto-detection (r1255,r1279)
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- SCons: Fixed support for JOBS=N and FAST=True to enable faster compiling (r1440)
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- SCons: Ensured that -h or --help will properly print help on custom Mapnik options before a user
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has been able to properly run 'configure'. (r1514)
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- SCons: Added ability to link to custom icu library name using ICU_LIB_NAME (r1414)
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- SCons: Improved reliability of python linking on OSX (#380)
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- Fonts: Added unifont to auto-installed fonts, which is used by the OSM styles as a fallback font (r1328)
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Mapnik 0.6.1 Release
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--------------------
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(Packaged from r1247)
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- Plugins: expose list of registered plugins as a 'plugin_names()' method of DatasourceCache (r1180)
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- XML: Fixed serialization and parsing bugs related to handling of integers and Enums (#328,#353)
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- SCons: Added the ability to set the PKG_CONFIG_PATH env setting (#217)
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- SCons: Improved linking to only required libraries for libmapnik (#371)
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- Shape Plugin: Added compile time flag to allow disabling the use of memory mapped files (r1213) (#342)
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- Core: Improved support for PPC (Big endian) architectures (r1198 -> r1213)
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- Scons: Improved auto-detection of boost libs/headers (r1200) (#297)
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- Plugins: Exposed list of available/registered plugins (r1180) (#246)
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- SCons: Improve build support for SunCC (patches from River Tarnell) (r1168, r1169)
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- Python: Pickling support for text_symbolizer (r1164) (#345)
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- Python: Pickling support for proj_transform and view/coord_transform (r1163) (#345)
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- Python: Pickling support for parameters (r1162) (#345)
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- Python: Pickling support for stroke objects (r1161) (#345)
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- Python: Pickling support for line_symbolizer (r1160) (#345)
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- Python: Pickling support for projection objects (r1159) (#345)
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- Python: Pickling support for shield_symbolizer (r1158) (#345)
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- Python: Pickling support for polygon_symbolizer (r1157) (#345)
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- Python: Pickling support for query objects (r1156) (#345)
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- Python: Pickling support for pattern symbolizers (r1155) (#345)
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- Python: Pickling support for raster_symbolizer (r1154) (#345)
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- Python: Added 'mapnik.has_cairo()' function to test for cairo support (r1152) (#284)
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- Python: Exposed dash_array get method (r1151) (#317)
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- Python: Pickling support for Coord objects (#345)
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- GDAL Plugin: Added an experimental option to open files in 'shared mode' (r1143)
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- Python: Exposed RasterSymbolizer options in Python (r1139)
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- Plugins: Fixed support for non-file based sources in GDAL and OGR plugins (#336,#337)
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- Plugins: Formal inclusion of new plugin for Kismet server (r1127) (#293)
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- Python: Made access to features and featuresets more Pythonic (r1121) (#171,#280,#283)
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- XML: Ensured relative paths in XML are interpreted relative to XML file location (r1124) (#326)
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- XML: Added ability to serialize all default symbolizer values by passing third argument to save_map(m,'file.xml',True)(r1117) (#327)
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- Core: Added support for alpha transparency when writing to png256 (patch from Marcin Rudowski) (#202)
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- SCons: Ensured ABI compatibility information is embedded in libmapnik.dylib on Mac OS X (#322)
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- SCons: Ensured that the full 'install_name' path would be added to libmapnik.dylib on Mac OS X (#374)
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- Tests: Added testing framework in Python using nose (r1101-r1105)
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- Raster Plugin: Added a tile/bbox-based read policy for large (rasters width * height > 1024*1024 will be loaded in chunks) (r1089)
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- OGCServer: Made lxml dependency optional (r1085) (#303)
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- Rasters: Handle rounding to allow better alignment of raster layers (r1079) (#295)
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- AGG Renderer: Added option to control output JPEG quality (r1078) (#198)
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- Plugins: Fixed segfault in OGR Plugin with empty geometries (r1074) (#292)
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Mapnik 0.6.0 Release
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--------------------
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(Packaged from r1066)
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- Python: Added support for aspect_fix_mode (r1013)
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- OGCServer Fixed axis-ordering for WMS 1.3.0 request (r1051) (#241)
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- Plugins: Added option to all plugins to support using a 'base' path argument (r1042)
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- Symbolizers: RasterSymbolizer now support composing modes for hillshading (r1027)
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- SCons: Added options to build the rundemo and pgsql2sqlite tools (r989)
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- OGCServer: Added content-length output (r986)
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- SCons: Replaced LIBS/INCLUDES options for postgres and gdal with pg_config and gdal-config (r977)
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- SCons: Created an optional configure stage (r973)
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- Python: Added further pickling/copy support to Map, Layers, Datasources, Styles,and Rules (r907,r913,r921)
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- OGCServer: Added support for load_map(), allowing reading of XML styles and layers (r901)
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- OGCServer: Enabled friendly html output when in debug mode (debug=1 in ogcserver.conf) (r899)
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- Plugins: Added Sqlite driver for reading sqlite databases (r881)
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- Python: Exposed a number of properties for the Text Symbolizer (r869)
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- Plugins: PostGIS plugin now accepts multi-line queries (r862)
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- Filter parsing: Allow numbers in the filter field name.
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This allows for shapefiles with columns like '1970'.
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- Plugins: Added OGR driver for reading all OGR supported formats (kunitoki) (r836) (#170)
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- XML: Added serialization of Fontsets (r807)
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- XML: Added support for reading xml from a string (r806)
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- C++: renamed mapnik::Color to mapnik::color (r796)
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- Python: Made available the scale_denominator property from the map in c++ and python (r794)
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- Python: Added ability to resize map and clear all layers and styles from python (r793)
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- Python: Exposed Proj to/from transformation for projected coordinate systems (r792,r822) (#117)
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- Memory Datasource: Added support for dynamically adding Points to map using Point Datasource (r790)
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- XML: Added xml serialization for abstract, title, minzoom, maxzoom, and queryable attributes (r787)
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- Core: Transformation is now skipped if srs values match exactly (r777)
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- Symbolizers: 'min_distance' now honored for POINT placement using Text Symbolizer (r771)
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- Plugins: PostGIS plugin now accepts a geometry_field,record_limit, cursor_size options (r769,r872)
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- Python: Added ability to transform as a method on Coord and Envelope objects (r764)
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- Python: Added docstrings to the Layer object (r763)
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- Plugins: Loosened the type checking in Shapefile Plugin dbf reader (r762)
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- Fonts: Added support for Right-to-left Hebrew text (r749)
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- Core: Added a Map buffer parameter - helps to avoid cut labels at tile edges (r744)
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- Symbolizers: Added opacity support to Point Symbolizer (r743)
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- Symbolizers: Added support of using Points with Shield Symbolizer (r741)
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- Plugins: PostGIS plugin now accepts alternate schemas (r773)
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- Core: Added a Map aspect_fix_mode to ensure proper syncing of map dimensions and bbox (r705)
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- Fonts: Added support for fallback fonts (r704)
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- Cairo: Cairo support exposed in Python (r666)
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- Plugins: Added OSM plugin for reading directly from OSM data (r663)
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- Filters: Added support for boolean expressions (r660)
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- Python: Added ability to open Image32 files (r652)
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- Cairo: Cairo rendering support added (r656)
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- Core: Added unicode support based on ICU (r650)
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- Core: Added support for single and multi threaded variants of Mapnik (r632,r634)
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- Plugins: Use memory mapped files for reading shape file (r628)
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- Core: Use streams to write images (i/o refactor) (r628) (#15)
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