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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "BKE_curves.hh"
#include "GEO_subdivide_curves.hh"
#include "UI_interface.h"
#include "UI_resources.h"
#include "node_geometry_util.hh"
namespace blender::nodes::node_geo_curve_subdivide_cc {
static void node_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Geometry>(N_("Curve")).supported_type(GEO_COMPONENT_TYPE_CURVE);
b.add_input<decl::Int>(N_("Cuts"))
.default_value(1)
.min(0)
.max(1000)
.supports_field()
.description(
N_("The number of control points to create on the segment following each point"));
b.add_output<decl::Geometry>(N_("Curve"));
}
static void node_geo_exec(GeoNodeExecParams params)
{
GeometrySet geometry_set = params.extract_input<GeometrySet>("Curve");
Field<int> cuts_field = params.extract_input<Field<int>>("Cuts");
geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
if (!geometry_set.has_curves()) {
return;
}
const Curves &src_curves_id = *geometry_set.get_curves_for_read();
const bke::CurvesGeometry &src_curves = bke::CurvesGeometry::wrap(src_curves_id.geometry);
bke::CurvesFieldContext field_context{src_curves, ATTR_DOMAIN_POINT};
fn::FieldEvaluator evaluator{field_context, src_curves.points_num()};
evaluator.add(cuts_field);
evaluator.evaluate();
const VArray<int> cuts = evaluator.get_evaluated<int>(0);
if (cuts.is_single() && cuts.get_internal_single() < 1) {
return;
}
bke::CurvesGeometry dst_curves = geometry::subdivide_curves(
src_curves, src_curves.curves_range(), cuts);
Curves *dst_curves_id = bke::curves_new_nomain(std::move(dst_curves));
bke::curves_copy_parameters(src_curves_id, *dst_curves_id);
geometry_set.replace_curves(dst_curves_id);
});
params.set_output("Curve", geometry_set);
}
} // namespace blender::nodes::node_geo_curve_subdivide_cc
void register_node_type_geo_curve_subdivide()
{
namespace file_ns = blender::nodes::node_geo_curve_subdivide_cc;
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_SUBDIVIDE_CURVE, "Subdivide Curve", NODE_CLASS_GEOMETRY);
ntype.declare = file_ns::node_declare;
ntype.geometry_node_execute = file_ns::node_geo_exec;
nodeRegisterType(&ntype);
}
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