Moved all other snippets to separate examples

[SVN r67778]

doc/src/examples/algorithms/intersection_segment.cpp

@@ -0,0 +1,51 @@
+// Boost.Geometry (aka GGL, Generic Geometry Library)
+//
+// Copyright Barend Gehrels 2011, Geodan, Amsterdam, the Netherlands
+// 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)
+//
+// Quickbook Example
+
+//[intersection_segment
+//` Calculate the intersection point (or points) of two segments
+
+#include <iostream>
+
+#include <boost/geometry/geometry.hpp>
+#include <boost/geometry/extensions/gis/io/wkt/wkt.hpp>
+#include <boost/geometry/geometries/adapted/std_as_linestring.hpp> /*< Adapts std::vector to linestring concept >*/
+
+#include <boost/foreach.hpp>
+
+
+int main()
+{
+    typedef boost::geometry::model::d2::point_xy<double> P;
+    boost::geometry::model::segment<P> segment1, segment2;
+    boost::geometry::read_wkt("linestring(1 1,2 2)", segment1);
+    boost::geometry::read_wkt("linestring(2 1,1 2)", segment2);
+
+    std::vector<P> intersections;
+    boost::geometry::intersection(segment1, segment2, intersections);
+
+    BOOST_FOREACH(P const& p, intersections)
+    {
+        std::cout << " " << boost::geometry::wkt(p);
+    }
+    std::cout << std::endl;
+
+    return 0;
+}
+
+//]
+
+
+//[intersection_segment_output
+/*`
+Output:
+[pre
+ POINT(1.5 1.5)
+]
+*/
+//]