fix: add default constructors to NurbsCurve and NurbsSurface

2026-07-24 14:26:47 +00:00
parent ebce6abdd6
commit 00ea90b522
2 changed files with 2 additions and 0 deletions
@@ -38,6 +38,7 @@ public:
     *                {1, sqrt2/2, 1, sqrt2/2, 1, sqrt2/2, 1}, 3);
     * @endcode
     */
+    NurbsCurve() : degree_(0) {}  // degenerate empty curve
    NurbsCurve(std::vector<Point3D> control_points, std::vector<double> knots,
               std::vector<double> weights, int degree);

@@ -35,6 +35,7 @@ public:
     * NurbsSurface sphere(grid, u_knots, v_knots, weights, 3, 3);
     * @endcode
     */
+    NurbsSurface() : degree_u_(0), degree_v_(0) {}  // degenerate empty surface
    NurbsSurface(std::vector<std::vector<Point3D>> control_grid,
                 std::vector<double> knots_u, std::vector<double> knots_v,
                 std::vector<std::vector<double>> weights,