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quaternion: add docstrings

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Danny Robson 2018-04-13 18:49:09 +10:00
parent 00515078f9
commit 64ea4fb6d4
1 changed files with 8 additions and 3 deletions
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11
quaternion.hpp
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@ -11,7 +11,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright 2011-2016 Danny Robson <danny@nerdcruft.net>
* Copyright 2011-2018 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_QUATERNION_HPP
@ -44,13 +44,18 @@ namespace util {
static quaternion angle_axis (T radians, vector<3,T> axis);
static quaternion from_euler (vector<3,T>);
static quaternion from_to (vector<3,T>, vector<3,T>);
/// build a quaternion that represents the rotation from a to b
static quaternion from_to (vector<3,T> a, vector<3,T> b);
/// build a quaternion that represents the rotation needed to look at
/// a direction with a given up direction
static quaternion look (vector<3,T> fwd, vector<3,T> up);
matrix4<T> as_matrix (void) const;
static constexpr
quaternion<T> identity (void)
quaternion<T>
identity (void)
{
return { 1, 0, 0, 0 };
}