Mapnik An OpenSource C++/Python toolkit for developing GIS (Geographic Information Systems) applications.
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C++ library c++ shared shared library GIS applications Mapnik

Mapnik Description

An OpenSource C++/Python toolkit for developing GIS (Geographic Information Systems) applications. Mapnik is an OpenSource C++/Python toolkit for developing GIS (Geographic Information Systems) applications. At the core is a C++ shared library providing algorithms/patterns for spatial data access and visualization. Essentially a collection of geographic objects (map, layer, datasource, feature, geometry), the library doesn't rely on "windowing systems" and can be deployed in any server environment. It is intended to play fair in a multi-threaded environment and is aimed primarily, but not exclusively, at web-based development. High-level Python bindings (boost.python) facilitate rapid application development, targeting zope3, django etc. Here are some key features of "Mapnik": · extensible datasource plug-in architecture (ESRI shape files, PostgreSQL/PostGIS) · anti-aliasing rendering · expressions based styling What's New in This Release: · Python: Added support for aspect_fix_mode (r1013) · Fixed axis-ordering for WMS 1.3.0 request (r1051) (#241) · Added option to all plugins to support using a 'base' path argument (r1042) · Symbolizers: RasterSymbolizer now support composing modes for hillshading (r1027) · SCons: Added options to build the rundemo and pgsql2sqlite tools (r989) · OGCServer: Added content-length output (r986) · SCons: Replaced LIBS/INCLUDES options for postgres and gdal with pg_config and gdal-config (r977) · SCons: Created an optional configure stage (r973) · Python: Added further pickling/copy support to Map, Layers, Datasources, Styles,and Rules (r907,r913,r921) · OGCServer: Added support for load_map(), allowing reading of XML styles and layers (r901) · OGCServer: Enabled friendly html output when in debug mode (debug=1 in ogcserver.conf) (r899) · Plugins: Added Sqlite driver for reading sqlite databases (r881) · Python: Exposed a number of properties for the Text Symbolizer (r869) · Plugins: PostGIS plugin now accepts multi-line queries (r862) · Filter parsing: Allow numbers in the filter field name. This allows for shapefiles with columns like '1970'. · Plugins: Added OGR driver for reading all OGR supported formats (kunitoki) (r836) (#170) · XML: Added serialization of Fontsets (r807) · XML: Added support for reading xml from a string (r806) · C++: renamed mapnik::Color to mapnik::color (r796) · Python: Made available the scale_denominator property from the map in c++ and python (r794) · Python: Added ability to resize map and clear all layers and styles from python (r793) · Python: Exposed Proj to/from transformation for projected coordinate systems (r792,r822) (#117) · Memory Datasource: Added support for dynamically adding Points to map using Point Datasource (r790) · XML: Added xml serialization for abstract, title, minzoom, maxzoom, and queryable attributes (r787) · Core: Transformation is now skipped if srs values match exactly (r777) · Symbolizers: 'min_distance' now honored for POINT placement using Text Symbolizer (r771) · Plugins: PostGIS plugin now accepts a geometry_field,record_limit, cursor_size options (r769,r872) · Python: Added ability to transform as a method on Coord and Envelope objects (r764) · Python: Added docstrings to the Layer object (r763) · Plugins: Loosened the type checking in Shapefile Plugin dbf reader (r762) · Fonts: Added support for Right-to-left Hebrew text (r749) · Core: Added a Map buffer parameter - helps to avoid cut labels at tile edges (r744) · Symbolizers: Added opacity support to Point Symbolizer (r743) · Symbolizers: Added support of using Points with Shield Symbolizer (r741) · Plugins: PostGIS plugin now accepts alternate schemas (r733) · Fonts: Added support for fallback fonts (r704) · Cairo: Cairo support exposed in Python (r666) · Plugins: Added OSM plugin for reading directly from OSM data (r663) · Filters: Added support for boolean expressions (r660) · Python: Added ability to open Image32 files (r652) · Cairo: Cairo rendering support added (r656) · Core: Added unicode support based on ICU (r650) · Core: Added support for single and multi threaded variants of Mapnik (r632,r634) · Plugins: Use memory mapped files for reading shape file (r628) · Core: Use streams to write images (i/o refactor) (r628) (#15)

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