From 69a0f1f564bb5f03a888dafaaf18eb42daecea45 Mon Sep 17 00:00:00 2001
From: Thomas Fischer <thomas.fischer@ufz.de>
Date: Thu, 10 Dec 2015 15:39:25 +0100
Subject: [PATCH] [MeL] CoordinateSystem: Fix computing coordinate system.
---
MeshLib/CoordinateSystem.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/MeshLib/CoordinateSystem.h b/MeshLib/CoordinateSystem.h
index a4020b2beb9..8b244788166 100644
--- a/MeshLib/CoordinateSystem.h
+++ b/MeshLib/CoordinateSystem.h
@@ -86,11 +86,14 @@ unsigned char CoordinateSystem::getCoordinateSystem(const GeoLib::AABB<T> &bbox)
const MathLib::Vector3 pt_diff(bbox.getMinPoint(), bbox.getMaxPoint());
- if (std::abs(pt_diff[0]) > .0)
+ // The axis aligned bounding box is a from the right half-open interval.
+ // Therefore, the difference between the particular coordinates of the
+ // points is modified by the unit in the last place towards zero.
+ if (std::nexttoward(std::abs(pt_diff[0]), 0.0) > .0)
coords |= CoordinateSystemType::X;
- if (std::abs(pt_diff[1]) > .0)
+ if (std::nexttoward(std::abs(pt_diff[1]), 0.0) > .0)
coords |= CoordinateSystemType::Y;
- if (std::abs(pt_diff[2]) > .0)
+ if (std::nexttoward(std::abs(pt_diff[2]), 0.0) > .0)
coords |= CoordinateSystemType::Z;
return coords;
--
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