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[buffer][fix] Mark points in buffered areas as not startable instead of discarding them

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Within can have in rare cases a rounding issue. We don't discard this
point, so it can be used to continue started rings in traversal. But
will never start a new ring from this type of points.

This fixes p17
This commit is contained in:
Barend Gehrels
2014-08-06 13:27:52 +02:00
parent dd2ef4a39d
commit e1fc427e30
3 changed files with 12 additions and 8 deletions
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2
test/algorithms/buffer/multi_polygon_buffer.cpp
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@@ -322,9 +322,7 @@ void test_all()
test_one<multi_polygon_type, polygon_type>("rt_p14", rt_p14, join_miter, end_flat, 20.8284, 1.0);
test_one<multi_polygon_type, polygon_type>("rt_p15", rt_p15, join_miter, end_flat, 23.6569, 1.0);
test_one<multi_polygon_type, polygon_type>("rt_p16", rt_p16, join_miter, end_flat, 23.4853, 1.0);
#if defined(BOOST_GEOMETRY_BUFFER_INCLUDE_FAILING_TESTS)
test_one<multi_polygon_type, polygon_type>("rt_p17", rt_p17, join_miter, end_flat, 25.3137, 1.0);
#endif
test_one<multi_polygon_type, polygon_type>("rt_p18", rt_p18, join_miter, end_flat, 23.3137, 1.0);
test_one<multi_polygon_type, polygon_type>("rt_p19", rt_p19, join_miter, end_flat, 25.5637, 1.0);
test_one<multi_polygon_type, polygon_type>("rt_p20", rt_p20, join_miter, end_flat, 25.4853, 1.0);