diff --git a/example/ml02_distance_strategy.cpp b/example/ml02_distance_strategy.cpp new file mode 100644 index 000000000..3b887d5e4 --- /dev/null +++ b/example/ml02_distance_strategy.cpp @@ -0,0 +1,36 @@ +// Boost.Geometry (aka GGL, Generic Geometry Library) + +// Copyright (c) 2009-2011 Mateusz Loskot, London, UK. + +// Use, modification and distribution is subject to the Boost Software License, +// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// +// Multipolygon DP simplification example from the mailing list discussion +// about the DP algorithm issue: +// http://lists.osgeo.org/pipermail/ggl/2011-September/001533.html + +#include +#include +#include +using namespace boost::geometry; + +int main() +{ + typedef model::d2::point_xy point_xy; + + point_xy p1(0.0, 0.0); + point_xy p2(5.0, 0.0); + + // 1) This is direct call to Pythagoras algo + typedef strategy::distance::pythagoras strategy1_type; + strategy1_type strategy1; + strategy1_type ::calculation_type d1 = strategy1.apply(p1, p2); + + // 2) This is what is effectively called by simplify + typedef strategy::distance::comparable::pythagoras strategy2_type; + strategy2_type strategy2; + strategy2_type::calculation_type d2 = strategy2.apply(p1, p2); + + return 0; +} diff --git a/example/ml02_distance_strategy.vcproj b/example/ml02_distance_strategy.vcproj new file mode 100644 index 000000000..b06f3f307 --- /dev/null +++ b/example/ml02_distance_strategy.vcproj @@ -0,0 +1,171 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +