Struct View3 

pub struct View3 { /* private fields */ }

Object providing a view-to-model transform in 2D

Implementations

impl View3

Object providing a world-to-model transform in 3D

This is implemented as a uniform scaling operation, followed by rotation (pitch / yaw, i.e. turntable rotation), followed by translation.

See View2 for a diagram of coordinate spaces

pub fn from_center_and_scale(center: Vector3<f32>, scale: f32) -> Self

Builds a camera from a center (in world coordinates) and a scale

The resulting camera will point at the center along the -Z axis, and the viewport will be ± scale in size.

pub fn components(&self) -> (Vector3<f32>, f32, f32, f32)

Returns a (center, scale, yaw, pitch) tuple

pub fn from_components( center: Vector3<f32>, scale: f32, yaw: f32, pitch: f32, ) -> Self

Builds the view from its components

pub fn world_to_model(&self) -> Matrix4<f32>

Returns the world-to-model transform matrix

pub fn transform_point(&self, p: &Point3<f32>) -> Point3<f32>

Transform a point from world to model space

pub fn begin_translate(&self, start: Point3<f32>) -> TranslateHandle<3>

Begins a translation operation, given a point in world space

pub fn translate(&mut self, h: &TranslateHandle<3>, pos: Point3<f32>) -> bool

Applies a translation (in world units) to the current camera position

pub fn zoom(&mut self, amount: f32, pos: Option<Point3<f32>>) -> bool

Zooms the camera about a particular position (in world space)

Returns true if the view has changed, false otherwise

pub fn begin_rotate(&self, start: Point3<f32>) -> RotateHandle

Begins a rotation operation, given a point in world space

pub fn rotate(&mut self, h: &RotateHandle, pos: Point3<f32>) -> bool

Rotates the camera, given a cursor end position in world space

Returns true if the view has changed, false otherwise

Trait Implementations

impl Clone for View3

fn clone(&self) -> View3

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for View3

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for View3

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for View3

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for View3

fn eq(&self, other: &View3) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for View3

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for View3

impl StructuralPartialEq for View3