Struct dzahui::simulation::camera::CameraBuilder

pub struct CameraBuilder {
    pub(crate) radius: Option<f32>,
    theta: Option<f32>,
    phi: Option<f32>,
    fov: Option<f32>,
    camera_sensitivity: Option<f32>,
    camera_target: Option<Point3<f32>>,
}

General Information

The camera builder. Gives some control to user, such as distance from target, initial position arround target, fov, speed, sensitivity and object being pointed at.

Fields

• radius - Distance to target.
• theta - One of two angles that dictates camera position arround target (in a sphere).
• phi - One of two angles that dictates camera position arround target (in a sphere).
• fov - Field of view of projection matrix.
• camera_sensitivity - Speed at which camera moves arround target (in a sphere).
• camera_target - Point at which camera is looking.

Fields

radius: Option<f32>

theta: Option<f32>

phi: Option<f32>

fov: Option<f32>

camera_sensitivity: Option<f32>

camera_target: Option<Point3<f32>>

Implementations

impl CameraBuilder

fn new() -> Self

Creates default CameraBuilder

pub fn change_distance_to_object(self, radius: f32) -> Self

Changes distance (radius) to object centered

pub fn with_target(self, x: f32, y: f32, z: f32) -> Self

Changes object being targeted

pub fn with_camera_position(self, theta: f32, phi: f32) -> Self

Changes initial camera position in a sphere with center camera_target

pub fn with_fov(self, fov: f32) -> Self

Changes fov when using projection matrix

pub fn with_sensitivity(self, sensitivity: f32) -> Self

Changes camera movement sensitivity arround object being targeted

pub(crate) fn build(self, mesh_length: f32, height: u32, width: u32) -> Camera

General Information

Builds a Camera from parameters given.

Details

Camera moves arround a sphere (theta, phi, radius) centered on a point of an object with a given radius. Object on camera is projected on viewport via a projection matrix with a certain fov. There’s no plan to add orthogonal projection. Camera sensitivity helps move camera around sphere.

Parameters

• self - Every parameter appearing in Camera struct but not here is derived from the ones that do appear
• mesh_length - Length of mesh to display in order to properly set radius if not given
• height - Winow height
• width - Window width

Trait Implementations

impl Debug for CameraBuilder

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

Formats the value using the given formatter.

impl Default for CameraBuilder

fn default() -> CameraBuilder

Returns the “default value” for a type.