v0.1.0: 初始工程骨架 — 7模块 40头文件 32源文件 17文档 Apache-2.0

include/vde/foundation/exact_predicates.h

@@ -0,0 +1,20 @@
+#pragma once
+#include "vde/foundation/math_types.h"
+
+namespace vde::foundation::exact {
+
+enum class Orientation { Clockwise, CounterClockwise, Collinear };
+enum class CircleTest { Inside, On, Outside };
+
+/// Adaptive-precision 2D orientation test (Shewchuk)
+Orientation orient_2d(const Point2D& a, const Point2D& b, const Point2D& c);
+
+/// Adaptive-precision 3D orientation test
+Orientation orient_3d(const Point3D& a, const Point3D& b,
+                      const Point3D& c, const Point3D& d);
+
+/// Adaptive-precision in-circle test
+CircleTest in_circle(const Point2D& a, const Point2D& b,
+                     const Point2D& c, const Point2D& d);
+
+}  // namespace vde::foundation::exact