From f007e03234b320f01d1cc366094f8b6ac80dba2b Mon Sep 17 00:00:00 2001
From: "Ilya V. Portnov" <portnov@bk.ru>
Date: Tue, 12 Nov 2024 18:36:12 +0500
Subject: [PATCH] New api methods.

---
 utils/curve/splines.py | 5 +++++
 utils/geom.py          | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/utils/curve/splines.py b/utils/curve/splines.py
index 86c18fc8f1..45ea122497 100644
--- a/utils/curve/splines.py
+++ b/utils/curve/splines.py
@@ -32,6 +32,11 @@ def from_points(cls, points, metric=None, is_cyclic=False):
         spline = CubicSpline(points, metric=metric, is_cyclic=is_cyclic)
         return SvSplineCurve(spline)
 
+    @classmethod
+    def from_2d_points(cls, xs, ys):
+        spline = CubicSpline.from_2d_points(xs, ys)
+        return SvSplineCurve(spline)
+
     def evaluate(self, t):
         v = self.spline.eval_at_point(t)
         return np.array(v)
diff --git a/utils/geom.py b/utils/geom.py
index 1d62e4dc25..3ecb4426fe 100644
--- a/utils/geom.py
+++ b/utils/geom.py
@@ -370,6 +370,13 @@ def calc_cubic_splines(tknots, n, locs):
     def create(cls, vertices, tknots = None, metric = None, is_cyclic = False):
         return CubicSpline(vertices, tknots=tknots, metric=metric, is_cyclic=is_cyclic)
 
+    @classmethod
+    def from_2d_points(cls, xs, ys):
+        vertices = np.zeros((len(xs), 3))
+        vertices[:,0] = np.array(xs)
+        vertices[:,1] = np.zrray(ys)
+        return CubicSpline(vertices, metric='X', is_cyclic=False)
+
     def eval(self, t_in, tknots = None):
         """
         Evaluate the spline at the points in t_in, which must be an array