FirstPersonView

April 1, 2024 ยท View on GitHub

The FirstPersonView class is a subclass of View that describes a camera placed at a provided location, looking towards the direction and orientation specified by viewState. The behavior is similar to that of a first-person game.

It's recommended that you read the Views and Projections guide before using this class.

Constructor

import {FirstPersonView} from '@deck.gl/core';
new FirstPersonView({id, ...});

FirstPersonView takes the same parameters as the View superclass constructor, plus the following:

projectionMatrix (number[16], optional) {#projectionmatrix}

Projection matrix.

If projectionMatrix is not supplied, the View class will build a projection matrix from the following parameters:

fovy (number, optional) {#fovy}

Field of view covered by camera, in the perspective case. In degrees. Default 75.

near (number, optional) {#near}

Distance of near clipping plane. Default 0.1.

far (number, optional) {#far}

Distance of far clipping plane. Default 1000.

focalDistance (number, optional) {#focaldistance}

Modifier of viewport scale. Corresponds to the number of pixels per meter. Default 1.

View State

To render, a FirstPersonView needs to be combined with a viewState object with the following parameters:

  • longitude (number, optional) - longitude of the camera
  • latitude (number, optional) - latitude of the camera
  • position (number[3], optional) - meter offsets of the camera from the lng-lat anchor point. Default [0, 0, 0].
  • bearing (number, optional) - bearing angle in degrees. Default 0 (north).
  • pitch (number, optional) - pitch angle in degrees. Default 0 (horizontal).
  • maxPitch (number, optional) - max pitch angle. Default 90 (down).
  • minPitch (number, optional) - min pitch angle. Default -90 (up).

Controller

By default, FirstPersonView uses the FirstPersonController to handle interactivity. To enable the controller, use:

const view = new FirstPersonView({id: 'pov', controller: true});

Visit the FirstPersonController documentation for a full list of supported options.

Source

modules/core/src/views/first-person-view.ts