source/blender/geometry/GEO_mesh_to_curve.hh

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

#pragma once

#include "BLI_index_mask.hh"

#include "BKE_curves.hh"

struct Mesh;

/** \file
 * \ingroup geo
 */

namespace blender::geometry {

/**
 * Convert the mesh into one or many poly curves. Since curves cannot have branches,
 * intersections of more than three edges will become breaks in curves. Attributes that
 * are not built-in on meshes and not curves are transferred to the result curve.
 */
bke::CurvesGeometry mesh_to_curve_convert(const Mesh &mesh, const IndexMask selection);

bke::CurvesGeometry create_curve_from_vert_indices(const Mesh &mesh,
                                                   Span<int> vert_indices,
                                                   Span<int> curve_offsets,
                                                   IndexRange cyclic_curves);

}  // namespace blender::geometry
File headers: SPDX License migration Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069 2022-02-11 09:07:11 +11:00			`/* SPDX-License-Identifier: GPL-2.0-or-later */`
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 2021-10-14 12:06:48 -05:00
Geometry Nodes: Copy parameters when copying a curves data-block Previously, things like materials, symmetry, and selection options stored on `Curves` weren't copied to the result in nodes like the subdivide and resample nodes. Now they are, which fixes some unexpected behavior and allows visualization of the sculpt mode selection. In the realize instances and join nodes the behavior is the same as for meshes, the parameters are taken from the first (top) input. I also refactored some functions to return a `CurvesGeometry` by-value, which makes it the responsibility of the node to copy the parameters. That should make the algorithms more reusable in other situations. Differential Revision: https://developer.blender.org/D15408 2022-07-19 10:14:46 -05:00			`#pragma once`

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 2021-10-14 12:06:48 -05:00			`#include "BLI_index_mask.hh"`

Geometry Nodes: Copy parameters when copying a curves data-block Previously, things like materials, symmetry, and selection options stored on `Curves` weren't copied to the result in nodes like the subdivide and resample nodes. Now they are, which fixes some unexpected behavior and allows visualization of the sculpt mode selection. In the realize instances and join nodes the behavior is the same as for meshes, the parameters are taken from the first (top) input. I also refactored some functions to return a `CurvesGeometry` by-value, which makes it the responsibility of the node to copy the parameters. That should make the algorithms more reusable in other situations. Differential Revision: https://developer.blender.org/D15408 2022-07-19 10:14:46 -05:00			`#include "BKE_curves.hh"`
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 2021-10-14 12:06:48 -05:00
			`struct Mesh;`

			`/** \file`
			`* \ingroup geo`
			`*/`

			`namespace blender::geometry {`

Cleanup: move public doc-strings into headers for 'geometry' Ref T92709 2021-12-09 20:23:10 +11:00			`/**`
Geometry Nodes: Copy parameters when copying a curves data-block Previously, things like materials, symmetry, and selection options stored on `Curves` weren't copied to the result in nodes like the subdivide and resample nodes. Now they are, which fixes some unexpected behavior and allows visualization of the sculpt mode selection. In the realize instances and join nodes the behavior is the same as for meshes, the parameters are taken from the first (top) input. I also refactored some functions to return a `CurvesGeometry` by-value, which makes it the responsibility of the node to copy the parameters. That should make the algorithms more reusable in other situations. Differential Revision: https://developer.blender.org/D15408 2022-07-19 10:14:46 -05:00			`* Convert the mesh into one or many poly curves. Since curves cannot have branches,`
			`* intersections of more than three edges will become breaks in curves. Attributes that`
Cleanup: move public doc-strings into headers for 'geometry' Ref T92709 2021-12-09 20:23:10 +11:00			`* are not built-in on meshes and not curves are transferred to the result curve.`
			`*/`
Geometry Nodes: Copy parameters when copying a curves data-block Previously, things like materials, symmetry, and selection options stored on `Curves` weren't copied to the result in nodes like the subdivide and resample nodes. Now they are, which fixes some unexpected behavior and allows visualization of the sculpt mode selection. In the realize instances and join nodes the behavior is the same as for meshes, the parameters are taken from the first (top) input. I also refactored some functions to return a `CurvesGeometry` by-value, which makes it the responsibility of the node to copy the parameters. That should make the algorithms more reusable in other situations. Differential Revision: https://developer.blender.org/D15408 2022-07-19 10:14:46 -05:00			`bke::CurvesGeometry mesh_to_curve_convert(const Mesh &mesh, const IndexMask selection);`
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 2021-10-14 12:06:48 -05:00
Geometry Nodes: Shortest Paths nodes This adds three new nodes: * `Shortest Edge Paths`: Actually finds the shortest paths. * `Edge Paths to Curves`: Converts the paths to separate curves. This may generate a quadratic amount of data, making it slow for large meshes. * `Edge Paths to Selection`: Generates an edge selection that contains all edges that are part of a path. This can be used with the Separate Geometry node to only keep the edges that are part of a path. For large meshes, this approach can be much faster than the `Edge Paths to Curves` node, because less data is created. Differential Revision: https://developer.blender.org/D15274 2022-07-27 15:38:30 +02:00			`bke::CurvesGeometry create_curve_from_vert_indices(const Mesh &mesh,`
			`Span<int> vert_indices,`
			`Span<int> curve_offsets,`
			`IndexRange cyclic_curves);`

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 2021-10-14 12:06:48 -05:00			`} // namespace blender::geometry`