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Geometry : |
Subject: [geometry] intersects( polygon, box )
From: Volker Schöch (vschoech_at_[hidden])
Date: 2012-02-16 12:30:43
Hi once more,
I have found the following problem:
A = POLYGON((1992 3240,1992 1440,3792 1800,3792 3240))
B1 = Box(1941;2066;2055;2166) // wkt for box outputs a clockwise, closed polygon which is confusing in this context
B2 = POLYGON((1941 2066,2055 2066,2055 2166,1941 2166)) // the same shape as B1, but type polygon
boost::geometry::intersects( A, B1 ) = false (wrong)
boost::geometry::intersects( A, B2 ) = true (correct)
As always, I am using boost 1.48.0, my polygon type is oriented counter-clockwise and not closed, my point type is based on int.
Regards,
Volker
-- Volker Schöch | vschoech_at_[hidden] Senior Software Engineer think-cell Software GmbH | Chausseestr. 8/E | 10115 Berlin | Germany http://www.think-cell.com | phone +49 30 666473-10 | US phone +1 800 891 8091 Amtsgericht Berlin-Charlottenburg, HRB 85229 | European Union VAT Id DE813474306 Directors: Dr. Markus Hannebauer, Dr. Arno Schoedl
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