1 files changed, 32 insertions, 0 deletions
diff --git a/source/blender/geometry/GEO_trim_curves.hh b/source/blender/geometry/GEO_trim_curves.hh
new file mode 100644
index 00000000000..3c07b5628ea
--- /dev/null
+++ b/source/blender/geometry/GEO_trim_curves.hh
@@ -0,0 +1,32 @@
+#include "BLI_span.hh"
+
+#include "BKE_curves.hh"
+#include "BKE_curves_utils.hh"
+#include "BKE_geometry_set.hh"
+
+namespace blender::geometry {
+
+/*
+ * Create a new Curves instance by trimming the input curves. Copying the selected splines
+ * between the start and end points.
+ */
+bke::CurvesGeometry trim_curves(const bke::CurvesGeometry &src_curves,
+                                IndexMask selection,
+                                Span<bke::curves::CurvePoint> start_points,
+                                Span<bke::curves::CurvePoint> end_points);
+
+/**
+ * Find the point(s) and piecewise segment corresponding to the given distance along the length of
+ * the curve. Returns points on the evaluated curve for Catmull-Rom and NURBS splines.
+ *
+ * \param curves: Curve geometry to sample.
+ * \param lengths: Distance along the curve on form [0.0, length] to determine the point for.
+ * \param curve_indices: Curve index to lookup for each 'length', negative index are set to 0.
+ * \param is_normalized: If true, 'lengths' are normalized to the interval [0.0, 1.0].
+ */
+Array<bke::curves::CurvePoint, 12> lookup_curve_points(const bke::CurvesGeometry &curves,
+                                                       Span<float> lengths,
+                                                       Span<int64_t> curve_indices,
+                                                       bool is_normalized);
+
+}  // namespace blender::geometry