Camera
Methods: aspose.threed.entities (aspose-3d-foss)
Camera est un Entity qui définit un point de vue dans une scène 3D. Il contrôle la façon dont la scène est projetée sur un plan d’image 2D. Une caméra est attachée à un Node pour la positionner et l’orienter dans la scène.
class Camera(Entity):Methods
A3DObject → SceneObject → Entity → Camera
Notes d’implémentation
Dans cette édition de aspose-3d-foss, le Camera class est un declaration stub. Seuls projection_type et name sont fonctionnellement stockés et récupérables. Toutes les autres propriétés (near_plane, far_plane, field_of_view, aspect_ratio, etc.) ont des mutateurs qui ne font rien ; les valeurs assignées ne sont pas conservées. La lecture de ces propriétés renvoie la valeur par défaut de la classe, quel que soit ce qui a été assigné.
Lors de l’importation des données de caméra à partir d’un fichier 3D (glTF, FBX), le projection_type est analysé correctement. D’autres attributs de caméra sont disponibles si le format les stocke comme métadonnées du graphe de scène.
Methods
Camera(name: str = None, projection_type: str = "PERSPECTIVE")| Name | Type | Access | Description |
|---|---|---|---|
name | str | Read/Write | Gets or sets the name. |
parent_nodes | `` | Read | Gets the parent nodes. |
excluded | bool | Read/Write | Gets or sets the excluded. |
parent_node | `` | Read/Write | Gets or sets the parent node. |
rotation_mode | `` | Read/Write | Gets or sets the rotation mode. |
near_plane | float | Read/Write | Gets or sets the near plane. |
far_plane | float | Read/Write | Gets or sets the far plane. |
aspect | float | Read/Write | Gets or sets the aspect. |
ortho_height | float | Read/Write | Gets or sets the ortho height. |
up | `` | Read/Write | Gets or sets the up. |
look_at | `` | Read/Write | Gets or sets the look at. |
direction | `` | Read/Write | Gets or sets the direction. |
target | `` | Read/Write | Gets or sets the target. |
aperture_mode | `` | Read/Write | Gets or sets the aperture mode. |
field_of_view | float | Read/Write | Gets or sets the field of view. |
field_of_view_x | float | Read/Write | Gets or sets the field of view x. |
field_of_view_y | float | Read/Write | Gets or sets the field of view y. |
width | float | Read/Write | Gets or sets the width. |
height | float | Read/Write | Gets or sets the height. |
aspect_ratio | float | Read/Write | Gets or sets the aspect ratio. |
magnification | `` | Read/Write | Gets or sets the magnification. |
projection_type | str | Read/Write | Gets or sets the projection type. |
scene | `` | Read/Write | Gets or sets the scene. |
properties | PropertyCollection | Read | Gets the properties. |
Methods
| Signature | Description |
|---|---|
__init__(name: str, projection_type) | |
move_forward(distance: float) | Moves the camera forward by the specified distance |
get_bounding_box() | Returns the bounding box. |
get_entity_renderer_key() | Not implemented in the FOSS edition — throws at runtime. Returns the entity renderer key. |
remove_property(property) | Removes a custom property identified by the given property object |
remove_property(property_name: str) | |
get_property(property: str) | Retrieves the value of a custom property by its identifier |
set_property(property: str, value) | Sets the property value. |
find_property(property: str) | Searches for a custom property and returns it if found |
Exemples d’utilisation
Methods: Dans cette édition, uniquement projection_type est stocké fonctionnellement. Les affectations de propriétés pour near_plane, far_plane, field_of_view, et aspect_ratio sont acceptées sans erreur mais ne persistent pas.
Caméra perspective
from aspose.threed import Scene
from aspose.threed.entities import Camera
from aspose.threed.entities import ProjectionType
scene = Scene()
# projection_type is stored and saved
cam = Camera("MainCamera", ProjectionType.PERSPECTIVE)
node = scene.root_node.create_child_node("camera", cam)
# Position the camera using node transform (this does persist)
node.transform.set_translation(0.0, 5.0, 20.0)
scene.save("scene-with-camera.glb")Caméra orthographique
from aspose.threed import Scene, FileFormat
from aspose.threed.entities import Camera, ProjectionType
scene = Scene()
# Only projection_type is retained; other property assignments are no-ops
cam = Camera("OrthoCamera", ProjectionType.ORTHOGRAPHIC)
scene.root_node.create_child_node("ortho_cam", cam)
scene.save("ortho-scene.glb", FileFormat.GLTF)Lire la caméra après importation
from aspose.threed import Scene
from aspose.threed.entities import Camera
scene = Scene()
scene.open("model.glb")
for node in scene.root_node.child_nodes:
if isinstance(node.entity, Camera):
cam = node.entity
# projection_type is reliably populated; other numeric properties
# return default values (0.0 / 1.0) regardless of file content
print(f"Camera '{cam.name}': {cam.projection_type}")