Geometry Nodes: Field version of mesh to curve node

This commit adds a fields version of the mesh to curve node, with a
field for the input selection. In order to reduce code duplication,
it adds the mesh to curve conversion to the new geometry module
and calls that implementation from both places.

More details on the geometry module can be found here: T86869

Differential Revision: https://developer.blender.org/D12579

1 files changed, 35 insertions, 0 deletions

diff --git a/source/blender/geometry/GEO_mesh_to_curve.hh b/source/blender/geometry/GEO_mesh_to_curve.hh
new file mode 100644
index 00000000000..66459ab79a9
--- /dev/null
+++ b/source/blender/geometry/GEO_mesh_to_curve.hh
@@ -0,0 +1,35 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "BLI_index_mask.hh"
+
+#include "BKE_spline.hh"
+
+#pragma once
+
+struct Mesh;
+class MeshComponent;
+
+/** \file
+ * \ingroup geo
+ */
+
+namespace blender::geometry {
+
+std::unique_ptr<CurveEval> mesh_to_curve_convert(const MeshComponent &mesh_component,
+                                                 const IndexMask selection);
+
+}  // namespace blender::geometry