From: Mikko Rasa <tdb@tdb.fi>
Date: Fri, 22 Nov 2013 12:43:24 +0000 (+0200)
Subject: Properly round negative elevations
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=d6816c177ee8d5f5191e833dce8e3c4e7e0222bf;p=r2c2.git

Properly round negative elevations
---

diff --git a/source/libr2c2/terrain.cpp b/source/libr2c2/terrain.cpp
index e012bc9..c89d0f8 100644
--- a/source/libr2c2/terrain.cpp
+++ b/source/libr2c2/terrain.cpp
@@ -1,3 +1,4 @@
+#include <cmath>
 #include <msp/geometry/box.h>
 #include <msp/geometry/transformedshape.h>
 #include "layout.h"
@@ -83,7 +84,7 @@ void Terrain::set_node_elevation(const NodeCoordinates &c, float elev, bool join
 		throw out_of_range("Terrain::set_node_elevation");
 
 	float eg = type.get_elevation_granularity();
-	elev = int(elev/eg+0.5)*eg;
+	elev = floor(elev/eg+0.5)*eg;
 
 	if(joined)
 	{