foamGltfScene.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2021-2022 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM 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 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM 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 OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::glTF::scene
 
Description
    Main class to assemble glTF components into a scene
 
Note
    Implements the glTF v2 specification
 
SourceFiles
    foamGltfScene.C
    foamGltfSceneTemplates.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_gltf_scene_H
#define Foam_gltf_scene_H
 
#include "fileName.H"
#include "foamGltfList.H"
#include "foamGltfObject.H"
#include "foamGltfMesh.H"
#include "foamGltfBufferView.H"
#include "foamGltfAccessor.H"
#include "foamGltfAnimation.H"
#include "scalarField.H"
#include "vectorField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class OFstream;
 
namespace glTF
{
 
/*---------------------------------------------------------------------------*\
                         Class glTF::scene Declaration
\*---------------------------------------------------------------------------*/
 
class scene
{
    // Private Data
 
        //- List of binary objects
        glTF::List<object> objects_;
 
        //- List of meshes
        glTF::List<mesh> meshes_;
 
        //- List of buffer views
        glTF::List<bufferView> bufferViews_;
 
        //- List of accessors
        glTF::List<accessor> accessors_;
 
        //- List of animations
        glTF::List<animation> animations_;
 
        //- Accumulative size in bytes
        label bytes_;
 
 
    // Private Member Functions
 
        //- Non-const access to mesh at index (can be -1 for last mesh)
        //  FatalError for out-of-bounds
        mesh& getMesh(label meshi);
 
 
public:
 
    // Constructors
 
        //- Default construct
        scene();
 
 
    // Public Member Functions
 
        //- Returns accessor index
        template<class Type>
        label addField
        (
            const Type& fld,
            const word& name,
            const label target = -1
        );
 
        //- Returns index of last mesh
        template<class Type>
        label addMesh(const Type& fld, const word& name);
 
        //- Returns accessor index
        template<class Type>
        label addFieldToMesh
        (
            const Type& fld,
            const word& name,
            const label meshId
        );
 
        //- Add a colour field to the mesh, optionally with an alpha channel.
        //  A constant alpha value can be specified as a field of size 1.
        //
        //  \returns accessor index
        label addColourToMesh
        (
            const vectorField& fld,             
            const word& name,
            const label meshId,
            const scalarField& alpha = scalarField::null()  
        );
 
        //- Returns index of last animation
        label createAnimation(const word& name);
 
        //- Add to existing animation
        void addToAnimation
        (
            const label animationi,
            const label inputId,
            const label outputId,
            const label meshId,
            const string& interpolation = "LINEAR"
        );
 
 
    // Write
 
        //- Write to file pair (.gltf, .bin)
        void write(const fileName& outputFile);
 
        //- Write JSON (.gltf) to stream with auxiliary binary data (.bin)
        void write(Ostream& os);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace glTF
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "foamGltfSceneTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //