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source/blender/nodes/geometry/nodes/legacy/node_geo_mesh_to_curve.cc
- This file was added.
| /* | |||||
| * 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 "GEO_mesh_to_curve.hh" | |||||
| #include "node_geometry_util.hh" | |||||
| namespace blender::nodes { | |||||
| static void geo_node_legacy_mesh_to_curve_declare(NodeDeclarationBuilder &b) | |||||
| { | |||||
| b.add_input<decl::Geometry>("Mesh"); | |||||
| b.add_input<decl::String>("Selection"); | |||||
| b.add_output<decl::Geometry>("Curve"); | |||||
| } | |||||
| static void geo_node_legacy_mesh_to_curve_exec(GeoNodeExecParams params) | |||||
| { | |||||
| GeometrySet geometry_set = params.extract_input<GeometrySet>("Mesh"); | |||||
| geometry_set = bke::geometry_set_realize_instances(geometry_set); | |||||
| if (!geometry_set.has_mesh()) { | |||||
| params.set_output("Curve", GeometrySet()); | |||||
| return; | |||||
| } | |||||
| const MeshComponent &component = *geometry_set.get_component_for_read<MeshComponent>(); | |||||
| const std::string selection_name = params.extract_input<std::string>("Selection"); | |||||
| if (!selection_name.empty() && !component.attribute_exists(selection_name)) { | |||||
| params.error_message_add(NodeWarningType::Error, | |||||
| TIP_("No attribute with name \"") + selection_name + "\""); | |||||
| } | |||||
| GVArray_Typed<bool> selection = component.attribute_get_for_read<bool>( | |||||
| selection_name, ATTR_DOMAIN_EDGE, true); | |||||
| Vector<int64_t> selected_edge_indices; | |||||
| for (const int64_t i : IndexRange(component.attribute_domain_size(ATTR_DOMAIN_EDGE))) { | |||||
| if (selection[i]) { | |||||
| selected_edge_indices.append(i); | |||||
| } | |||||
| } | |||||
| if (selected_edge_indices.size() == 0) { | |||||
| params.set_output("Curve", GeometrySet()); | |||||
| return; | |||||
| } | |||||
| std::unique_ptr<CurveEval> curve = geometry::mesh_to_curve_convert( | |||||
| component, IndexMask(selected_edge_indices)); | |||||
| params.set_output("Curve", GeometrySet::create_with_curve(curve.release())); | |||||
| } | |||||
| } // namespace blender::nodes | |||||
| void register_node_type_geo_legacy_mesh_to_curve() | |||||
| { | |||||
| static bNodeType ntype; | |||||
| geo_node_type_base( | |||||
| &ntype, GEO_NODE_LEGACY_MESH_TO_CURVE, "Mesh to Curve", NODE_CLASS_GEOMETRY, 0); | |||||
| ntype.declare = blender::nodes::geo_node_legacy_mesh_to_curve_declare; | |||||
| ntype.geometry_node_execute = blender::nodes::geo_node_legacy_mesh_to_curve_exec; | |||||
| nodeRegisterType(&ntype); | |||||
| } | |||||
| No newline at end of file | |||||