Differential D16858 Diff 59011 source/blender/nodes/geometry/nodes/node_geo_mesh_to_curve.cc

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source/blender/nodes/geometry/nodes/node_geo_mesh_to_curve.cc

	/* SPDX-License-Identifier: GPL-2.0-or-later */			/* SPDX-License-Identifier: GPL-2.0-or-later */

	#include "DNA_mesh_types.h"			#include "DNA_mesh_types.h"

	#include "GEO_mesh_to_curve.hh"			#include "GEO_mesh_to_curve.hh"

	#include "node_geometry_util.hh"			#include "node_geometry_util.hh"

	namespace blender::nodes::node_geo_mesh_to_curve_cc {			namespace blender::nodes::node_geo_mesh_to_curve_cc {

	static void node_declare(NodeDeclarationBuilder &b)			static void node_declare(NodeDeclarationBuilder &b)
	{			{
	b.add_input<decl::Geometry>(N_("Mesh")).supported_type(GEO_COMPONENT_TYPE_MESH);			b.add_input<decl::Geometry>(N_("Mesh")).supported_type(GEO_COMPONENT_TYPE_MESH);
	b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().supports_field();			b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().field_on_all();
	b.add_output<decl::Geometry>(N_("Curve"));			b.add_output<decl::Geometry>(N_("Curve")).propagate_all();
	}			}

	static void node_geo_exec(GeoNodeExecParams params)			static void node_geo_exec(GeoNodeExecParams params)
	{			{
	GeometrySet geometry_set = params.extract_input<GeometrySet>("Mesh");			GeometrySet geometry_set = params.extract_input<GeometrySet>("Mesh");

	geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {			geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
	const Mesh *mesh = geometry_set.get_mesh_for_read();			const Mesh *mesh = geometry_set.get_mesh_for_read();
	if (mesh == nullptr) {			if (mesh == nullptr) {
	geometry_set.remove_geometry_during_modify();			geometry_set.remove_geometry_during_modify();
	return;			return;
	}			}

	bke::MeshFieldContext context{*mesh, ATTR_DOMAIN_EDGE};			bke::MeshFieldContext context{*mesh, ATTR_DOMAIN_EDGE};
	fn::FieldEvaluator evaluator{context, mesh->totedge};			fn::FieldEvaluator evaluator{context, mesh->totedge};
	evaluator.add(params.get_input<Field<bool>>("Selection"));			evaluator.add(params.get_input<Field<bool>>("Selection"));
	evaluator.evaluate();			evaluator.evaluate();
	const IndexMask selection = evaluator.get_evaluated_as_mask(0);			const IndexMask selection = evaluator.get_evaluated_as_mask(0);
	if (selection.size() == 0) {			if (selection.size() == 0) {
	geometry_set.remove_geometry_during_modify();			geometry_set.remove_geometry_during_modify();
	return;			return;
	}			}

	bke::CurvesGeometry curves = geometry::mesh_to_curve_convert(*mesh, selection);			bke::CurvesGeometry curves = geometry::mesh_to_curve_convert(
				*mesh, selection, params.get_output_propagation_info("Curve"));
	geometry_set.replace_curves(bke::curves_new_nomain(std::move(curves)));			geometry_set.replace_curves(bke::curves_new_nomain(std::move(curves)));
	geometry_set.keep_only_during_modify({GEO_COMPONENT_TYPE_CURVE});			geometry_set.keep_only_during_modify({GEO_COMPONENT_TYPE_CURVE});
	});			});

	params.set_output("Curve", std::move(geometry_set));			params.set_output("Curve", std::move(geometry_set));
	}			}

	} // namespace blender::nodes::node_geo_mesh_to_curve_cc			} // namespace blender::nodes::node_geo_mesh_to_curve_cc
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