create_scene_3d — Create the data structure that is needed to visualize collections of 3D objects.
create_scene_3d( : : : Scene3D)
create_scene_3d creates a new 3D scene and returns it in Scene3D.
A 3D scene is a collection of instances of 3D object models, cameras, and light sources. Use the operators add_scene_3d_instance, add_scene_3d_camera, and add_scene_3d_light to add these objects to Scene3D. Use display_scene_3d to display a 3D scene in a window.
A pose is associated (with add_scene_3d_instance or set_scene_3d_instance_pose) to each instance in the Scene, which represents the instance's position within the scene coordinate system SCS. The pose of the scene in the world coordinate system WCS can be set with set_scene_3d_to_world_pose. The pose of the camera in the world coordinate system can be set with set_scene_3d_camera_pose and defines the camera coordinate system CCS.
Parameters influencing the whole scene such as the quality of the rendering can be set with set_scene_3d_param.
This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.
Handle of the 3D scene.
* Create a new scene create_scene_3d (Scene) * A scene needs at least one camera. The default pose * of a camera is located at the origin. The pose can be * changed with set_scene_3d_camera_pose. add_scene_3d_camera (Scene, CameraParam, CameraIndex) * Further a scene needs at least one light. add_scene_3d_light (Scene, [42.0, 42.0, 42.0], 'point_light', LightIndex) * * To add an object, add_scene_3d_instance is called with a * 3d object model and a pose. add_scene_3d returns an InstanceIndex * which must be used to reference this instance in subsequent calls. add_scene_3d_instance (Scene, ObjectModel3D, Pose, InstanceIndex) * Set its color. set_scene_3d_instance_param (Scene, InstanceIndex, 'color', 'green') * Display the scene. display_scene_3d (WindowHandle, Scene, CameraIndex) * Cleanup. clear_scene_3d (Scene)
create_scene_3d returns 2 (H_MSG_TRUE) if the scene could be created successfully. If necessary, an exception is raised.
add_scene_3d_instance, add_scene_3d_light, add_scene_3d_camera, set_scene_3d_param