From c17292fc068e26bbcefcc8778daa5cb07c82f065 Mon Sep 17 00:00:00 2001
From: "Johan B. C. Engelen" <jbc.engelen@swissonline.ch>
Date: Sun, 2 Dec 2007 23:14:54 +0000
Subject: Fix compile. Don't #include .cpp files!

(bzr r4157)
---
 src/util/Makefile_insert |  1 +
 src/util/mathfns.h       | 43 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 src/util/mathfns.h

(limited to 'src/util')

diff --git a/src/util/Makefile_insert b/src/util/Makefile_insert
index 41d3b9fb4..913dda26b 100644
--- a/src/util/Makefile_insert
+++ b/src/util/Makefile_insert
@@ -16,6 +16,7 @@ util_libinkutil_a_SOURCES = \
 	util/list.h \
 	util/list-container.h \
 	util/map-list.h \
+	util/mathfns.h \
 	util/reverse-list.h \
 	util/share.h \
 	util/share.cpp \
diff --git a/src/util/mathfns.h b/src/util/mathfns.h
new file mode 100644
index 000000000..9ebd8bc2f
--- /dev/null
+++ b/src/util/mathfns.h
@@ -0,0 +1,43 @@
+/*
+ * Inkscape::Util::... some mathmatical functions 
+ *
+ * Authors:
+ *   Johan Engelen <goejendaagh@zonnet.nl>
+ *
+ * Copyright (C) 2007 Johan Engelen
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifndef SEEN_INKSCAPE_UTIL_MATHFNS_H
+#define SEEN_INKSCAPE_UTIL_MATHFNS_H
+
+
+namespace Inkscape {
+
+namespace Util {
+
+/**
+ * Returns area in triangle given by points; may be negative.
+ */
+inline double
+triangle_area (NR::Point p1, NR::Point p2, NR::Point p3)
+{
+    return (p1[NR::X]*p2[NR::Y] + p1[NR::Y]*p3[NR::X] + p2[NR::X]*p3[NR::Y] - p2[NR::Y]*p3[NR::X] - p1[NR::Y]*p2[NR::X] - p1[NR::X]*p3[NR::Y]);
+}
+
+}
+
+}
+
+#endif
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
-- 
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