Fix rotation: use std::abs()

Author: nolankramer

examples/app/vsgturntablecamera/Turntable.cpp

@@ -1,29 +1,4 @@
-/**
- * MIT License
-
-Copyright (c) [2025] [Nolan Kramer]
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
- * 
- */
-
-#include "Turntable.hpp"
+#include <InfinityCreator/Visualizer/Camera/Turntable.hpp>
 
 Turntable::Turntable(vsg::ref_ptr<vsg::Camera> camera) :
     _camera(camera),
@@ -563,7 +538,7 @@ void Turntable::computeRotationAxesWithGimbalAvoidance(vsg::dvec3& horizontalAxi
 
 void Turntable::rotate(double angle, const vsg::dvec3& axis)
 {
-    if (abs(angle) < 1e-10 || vsg::length(axis) < 1e-10)
+    if (std::abs(angle) < 1e-10 || vsg::length(axis) < 1e-10)
         return;
 
     // Create rotation matrix around the provided axis