camera_controller_orbit

Mouse and keyboard control of a camera_orbit (rotate, zoom, pan).

Derives from: camera_controller_generic_base

Fields and methods

Members of the struct camera_controller_orbit. Most of what you do with a CGP type goes through the free functions listed below.

camera_orbit camera_model Orbit camera (free arcball rotation) driven by the controller.

`camera_generic_base const& camera() const` `camera_generic_base& camera()`	Returns camera_model as a read-only camera_generic_base. src
`void action_mouse_move()`	Updates the camera from the mouse displacement when the cursor is not on the GUI; left drag rotates (arcball), Ctrl + left drag pans in the view plane, right drag changes the distance to the center, Ctrl + right drag translates the center front/back. src
`void idle_frame()`	Rolls the camera around the view direction while the left/right arrow (or R/F) key is held, at 1 radian per second. src
`void look_at(vec3 const& eye, vec3 const& center, vec3 const& up)`	Places the camera at eye looking toward center with the given up vector, center becoming the center of rotation. src
`std::string doc_usage() const`	Returns a text describing the mouse and keyboard controls of the orbit camera (including the R/F keys). src

Inherited from camera_controller_generic_base (6 members)

`bool is_active = true`	Enables the controller, true by default; when false the mouse and idle actions return without moving the camera.
`input_devices* inputs = nullptr`	Pointer to the global keyboard/mouse state, nullptr until initialize() is called.
`window_structure* window = nullptr`	Pointer to the global window state, nullptr until initialize() is called.

`void initialize(input_devices& inputs, window_structure& window)`	Stores pointers to the global inputs and window; must be called before any action function. src
`void action_keyboard()`	Handles a keyboard press or release event; does nothing in the base class. src
`void action_mouse_click()`	Handles a mouse button press or release event; does nothing in the base class. src

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