Spécifiez les options de sauvegarde de fichier 3D

3D Options de sauvegarde des fichiers

Il existe plusieurs surcharges de méthode Scene.save qui acceptent un objet SaveOptions. Cela devrait être un objet d’une classe dérivée de la classe SaveOptions. Chaque format de sauvegarde a une classe correspondante qui contient des options de sauvegarde pour ce format de sauvegarde, par exemple, il y a ColladaSaveOptions pour le format de sauvegarde FileFormat.Collada.

Utilisation des options de sauvegarde Collada

Le code ci-dessous montre comment définir les options de sauvegarde avant d’enregistrer un fichier 3D au format Collada.

from aspose.threed.formats import ColladaSaveOptions, ColladaTransformStyle

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
dataDir = "data-dir"
saveColladaopts = ColladaSaveOptions()
#  Generates indented XML document
saveColladaopts.indented = True
#  The style of node transformation
saveColladaopts.transform_style = ColladaTransformStyle.MATRIX
#  Configure the lookup paths to allow importer to find external dependencies.
saveColladaopts.lookup_paths = [[dataDir]]

Utilisation des options de sauvegarde Discreet3DS

Le code ci-dessous montre comment définir les options de sauvegarde avant d’enregistrer un fichier 3D dans un format Discreet 3DS.

from aspose.threed.formats import Discreet3dsSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  The path to the documents directory.
dataDir = "data-dir"
#  Initialize an object
saveOpts = Discreet3dsSaveOptions()
#  The start base for generating new name for duplicated names.
saveOpts.duplicated_name_counter_base = 2
#  The format of the duplicated counter.
saveOpts.duplicated_name_counter_format = "NameFormat"
#  The separator between object's name and the duplicated counter.
saveOpts.duplicated_name_separator = "Separator"
#  Allows to export cameras
saveOpts.export_camera = True
#  Allows to export light
saveOpts.export_light = True
#  Flip the coordinate system
saveOpts.flip_coordinate_system = True
#  Prefer to use gamma-corrected color if a 3ds file provides both original color and gamma-corrected color.
saveOpts.gamma_corrected_color = True
#  Use high-precise color which each color channel will use 32bit float.
saveOpts.high_precise_color = True
#  Configure the look up paths to allow importer to find external dependencies.
saveOpts.lookup_paths = [[dataDir]]
#  Set the master scale
saveOpts.master_scale = 1.0

Utilisation des options de sauvegarde FBX

Le code ci-dessous montre comment définir les options de sauvegarde avant d’enregistrer un fichier 3D dans un format FBX.

from aspose.threed import FileFormat
from aspose.threed.formats import FbxSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  The path to the documents directory.
dataDir = "data-dir"
#  Initialize an object
saveOpts = FbxSaveOptions(FileFormat.FBX7500ASCII)
#  Generates the legacy material properties.
saveOpts.export_legacy_material_properties = True
#  Fold repeated curve data using FBX's animation reference count
saveOpts.fold_repeated_curve_data = True
#  Always generates material mapping information for geometries if the attached node contains materials.
saveOpts.generate_vertex_element_material = True
#  Configure the look up paths to allow importer to find external dependencies.
saveOpts.lookup_paths = [[dataDir]]
#  Generates a video object for texture.
saveOpts.video_for_texture = True

FBXSaveOptions expose également la propriété enable_compression qui peut être utilisée pour compresser de grandes données binaires dans le fichier FBX. La valeur par défaut de cette propriété est true. L’extrait de code ci-dessous explique comment vous pouvez travailler avec cette propriété tout en enregistrant une scène.

from aspose.threed import FileFormat, Scene
from aspose.threed.formats import FbxSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  Load a 3D document into Aspose.3D
scene = Scene("data-dir"  + "document.fbx")
options = FbxSaveOptions(FileFormat.FBX7500ASCII)
options.enable_compression = false 
scene.save("out"  + "UncompressedDocument.fbx", options)

Utilisation des options Obj Save

Le code ci-dessous montre comment définir les options de sauvegarde avant d’enregistrer un fichier 3D au format Obj.

from aspose.threed.formats import ObjSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  The path to the documents directory.
dataDir = "data-dir"
#  Initialize an object
saveObjOpts = ObjSaveOptions()
#  Import materials from external material library file
saveObjOpts.enable_materials = True
#  Flip the coordinate system.
saveObjOpts.flip_coordinate_system = True
#  Configure the look up paths to allow importer to find external dependencies.
saveObjOpts.lookup_paths = [[dataDir]]
#  Serialize W component in model's vertex position
saveObjOpts.serialize_w = True
#  Generate comments for each section
saveObjOpts.verbose = True

Utilisation des options de sauvegarde STL

Le code ci-dessous montre comment définir les options de sauvegarde avant d’enregistrer un fichier 3D au format STL.

from aspose.threed.formats import StlSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  The path to the documents directory.
dataDir = "data-dir"
#  Initialize an object
saveSTLOpts = StlSaveOptions()
#  Flip the coordinate system.
saveSTLOpts.flip_coordinate_system = True
#  Configure the look up paths to allow importer to find external dependencies.
saveSTLOpts.lookup_paths = [[dataDir]]

Utilisation des options de sauvegarde U3D

Le code ci-dessous montre comment définir les options de sauvegarde avant de sauvegarder un document au format U3D.

from aspose.threed.formats import U3dSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  The path to the documents directory.
dataDir = "data-dir"
#  Initialize an object
saveU3DOptions = U3dSaveOptions()
#  Export normal data.
saveU3DOptions.export_normals = True
#  Export the texture coordinates.
saveU3DOptions.export_texture_coordinates = True
#  Export the vertex diffuse color.
saveU3DOptions.export_vertex_diffuse = True
#  Export vertex specular color
saveU3DOptions.export_vertex_specular = True
#  Flip the coordinate system.
saveU3DOptions.flip_coordinate_system = True
#  Configure the look up paths to allow importer to find external dependencies.
saveU3DOptions.lookup_paths = [[dataDir]]
#  Compress the mesh data
saveU3DOptions.mesh_compression = True

Utilisation des options de sauvegarde glTF

Le code ci-dessous montre comment définir les options de sauvegarde avant de sauvegarder un document au format glTF.

from aspose.threed import FileContentType, FileFormat, Scene
from aspose.threed.entities import Sphere
from aspose.threed.formats import GltfSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  Initialize Scene object
scene = Scene()
#  Create a child node
scene.root_node.create_child_node("sphere", Sphere())
#  Set glTF saving options. The code example embeds all assets into the target file usually a glTF file comes with some dependencies, a bin file for model's vertex/indices, two .glsl files for vertex/fragment shaders
#  Use opt.EmbedAssets to tells the Aspose.3D API to export scene and embed the dependencies inside the target file.
opt = GltfSaveOptions(FileContentType.ASCII)
opt.embed_assets = True
#  Use KHR_materials_common extension to define the material, thus no GLSL files are generated.
opt.use_common_materials = True
#  Customize the name of the buffer file which defines model
opt.buffer_file = "mybuf.bin"
#  Save GlTF file
scene.save("out"  + "glTFSaveOptions_out.gltf", opt)
#  Save a binary glTF file using KHR_binary_glTF extension
scene.save("out"  + "glTFSaveOptions_out.glb", FileFormat.GLTF_BINARY)
#  Developers may use saving options to create a binary glTF file using KHR_binary_glTF extension
opts = GltfSaveOptions(FileContentType.BINARY)
scene.save("out"  + "Test_out.glb", opts)

PrettyPrint in glTF Options de sauvegarde

Vous pouvez également utiliser la propriété PrettyPrint de la classe GLTFSaveOptions pour une impression JSON compréhensible par l’homme. Le code ci-dessous montre comment utiliser cette fonctionnalité.

from aspose.threed import FileFormat, Scene
from aspose.threed.entities import Sphere
from aspose.threed.formats import GltfSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  Initialize 3D scene
scene = Scene(Sphere())
#  Initialize GltfSaveOptions
opt = GltfSaveOptions(FileFormat.GLTF2)
#  The JSON content of GLTF file is indented for human reading, default value is false
opt.pretty_print = True
#  Save 3D Scene
scene.save("data-dir"  + "prettyPrintInGltfSaveOption.gltf", opt)

Enregistrer les dépendances d’une scène 3D dans le système de fichiers réel

Les développeurs peuvent avoir besoin d’enregistrer toutes les dépendances de scène 3D dans le système de fichiers réel. Ils peuvent définir le chemin d’un répertoire local, enregistrer dans l’objet MemoryFileSystem ou simplement jeter les dépendances. La propriété FileSystem est ajoutée dans toutes les classes d’option de sauvegarde.

Jeter l’enregistrement des fichiers matériels

from aspose.threed import Scene
from aspose.threed.entities import Sphere
from aspose.threed.formats import ObjSaveOptions
from aspose.threed.shading import PhongMaterial
from aspose.threed.utilities import DummyFileSystem

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  The code example uses the DummyFileSystem, so the material files are not created.
#  Initialize Scene object
scene = Scene()
#  Create a child node
scene.root_node.create_child_node("sphere", Sphere()).material = PhongMaterial()
#  Set saving options
opt = ObjSaveOptions()
opt.file_system = DummyFileSystem()
#  Save 3D scene
scene.save("out"  + "DiscardSavingMaterial_out.obj", opt)

Sauvegardez les dépendances dans le répertoire local

from aspose.threed import Scene
from aspose.threed.entities import Sphere
from aspose.threed.formats import ObjSaveOptions
from aspose.threed.shading import PhongMaterial
from aspose.threed.utilities import LocalFileSystem

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  The code example uses the LocalFileSystem class to save dependencies to the local directory.
dataDir = "data-dir"
#  Initialize Scene object
scene = Scene()
#  Create a child node
scene.root_node.create_child_node("sphere", Sphere()).material = PhongMaterial()
#  Set saving options
opt = ObjSaveOptions()
opt.file_system = LocalFileSystem(dataDir)
#  Save 3D scene
scene.save("out"  + "SavingDependenciesInLocalDirectory_out.obj", opt)

Sauvegardez les dépendances dans l’objet MemoryFileSystem

from aspose.threed import Scene
from aspose.threed.entities import Sphere
from aspose.threed.formats import ObjSaveOptions
from aspose.threed.shading import PhongMaterial
from aspose.threed.utilities import MemoryFileSystem

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  The code example uses the MemoryFileSystem to intercepts the dependencies writing.
#  Initialize Scene object
scene = Scene()
#  Create a child node
scene.root_node.create_child_node("sphere", Sphere()).material = PhongMaterial()
#  Set saving options
opt = ObjSaveOptions()
mfs = MemoryFileSystem()
opt.file_system = mfs
#  Save 3D scene
scene.save("out"  + "SavingDependenciesInMemoryFileSystem_out.obj", opt)
#  Get the test.mtl file content
mtl = mfs.get_file_content("SavingDependenciesInMemoryFileSystem_out.mtl")
with open("out"  + "Material.mtl", "wb") as f:
    f.write(mtl)

Utilisation des options de sauvegarde Google Draco (.drc)

Le code ci-dessous montre comment définir les options de sauvegarde avant de sauvegarder un modèle 3D au format DRC.

from aspose.threed import Scene
from aspose.threed.entities import Sphere
from aspose.threed.formats import DracoCompressionLevel, DracoSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  Initialize Scene object
scene = Scene()
#  Create a child node
scene.root_node.create_child_node("sphere", Sphere())
#  Initialize .DRC saving options.
opts = DracoSaveOptions()
#  Quantization bits for position
opts.position_bits = 14
#  Quantization bits for texture coordinate
opts.texture_coordinate_bits = 8
#  Quantization bits for vertex color
opts.color_bits = 10
#  Quantization bits for normal vectors
opts.normal_bits = 7
#  Set compression level
opts.compression_level = DracoCompressionLevel.OPTIMAL
#  Save Google Draco (.drc) file
scene.save("out"  + "DRCSaveOptions_out.drc", opts)

Utilisation des options de sauvegarde RVM

Le code ci-dessous montre comment définir les options de sauvegarde avant de sauvegarder un modèle 3D au format RVM.

from aspose.threed import Scene
from aspose.threed.entities import Box
from aspose.threed.formats import RvmSaveOptions

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
dataDir = "data-dir"
scene = Scene()
node = scene.root_node.create_child_node("Box", Box())
node.set_property("rvm:Refno", "=3462123")
node.set_property("rvm:Description", "This is the description of the box")
options = RvmSaveOptions()
options.attribute_prefix = "rvm:"
options.export_attributes = true 
# The RVM attribute's prefix is rvm:, all properties that starts with rvm: will be exported to .att file(the prefix will be removed)
opt = options
scene.save(dataDir + "test.rvm", opt)
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