Major updates, start orientation, start documentation.

test/orientation_test.cc

@@ -0,0 +1,46 @@
+#include <gtest/gtest.h>
+#include <wrmath/geom/vector.h>
+#include <wrmath/geom/orientation.h>
+
+using namespace std;
+using namespace wr;
+
+
+TEST(Orientation2f, Heading)
+{
+	geom::Vector2f	a {2.0, 2.0};
+
+	EXPECT_FLOAT_EQ(geom::Heading2f(a), geom::DegreesToRadiansF(45));
+}
+
+
+TEST(Orientation3f, Heading)
+{
+	geom::Vector3f	a {2.0, 2.0, 2.0};
+
+	EXPECT_FLOAT_EQ(geom::Heading3f(a), geom::DegreesToRadiansF(45));
+}
+
+
+TEST(Orientation2d, Heading)
+{
+	geom::Vector2d	a {2.0, 2.0};
+
+	EXPECT_NEAR(geom::Heading2d(a), geom::DegreesToRadiansF(45), 0.000001);
+}
+
+
+TEST(Orientation3d, Heading)
+{
+	geom::Vector3d	a {2.0, 2.0, 2.0};
+
+	EXPECT_NEAR(geom::Heading3d(a), geom::DegreesToRadiansF(45), 0.000001);
+}
+
+
+int
+main(int argc, char **argv)
+{
+	::testing::InitGoogleTest(&argc, argv);
+	return RUN_ALL_TESTS();
+}