05849f0da5
This adds a new mode called 'angled-point' to the marker-placement modes. The full list of modes is then: point, angled-point, interior, line, vertex-first, vertex-last Angled point is identical to point, except that when placing a marker on a line, the marker's angle is taken from the angle of the line segment. There is another possible use of the "angled-point" concept for polygons, and that is for placing labels on stand (aka erf) polygons. By computing a dominant angle for a mostly rectangular polygon, this can produce quite good results. I'm not sure whether I should implement that now, or if I could do that later.
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Mapnik is an open source toolkit for developing mapping applications. At the core is a C++ shared library providing algorithms and patterns for spatial data access and visualization.
Mapnik is basically a collection of geographic objects like maps, layers, datasources, features, and geometries. The library doesn't rely on any OS specific "windowing systems" and it can be deployed to 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.
For further information see http://mapnik.org and also our wiki documentation.
Installation
See INSTALL.md for installation instructions and the Install page on the wiki for guides.
Code of Conduct
Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.
License
Mapnik software is free and is released under the LGPL (GNU Lesser General Public License). Please see COPYING for more information.