Skip to content

Latest commit

 

History

History
73 lines (44 loc) · 3.06 KB

first-person-view.md

File metadata and controls

73 lines (44 loc) · 3.06 KB
Raw

FirstPersonView

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.

<iframe height="450" style={{width:'100%'}} scrolling="no" title="deck.gl FirstPersonView" src="https://codepen.io/vis-gl/embed/oNYXxNE?height=450&theme-id=light&default-tab=result" frameborder="no" loading="lazy" allowtransparency="true" allowfullscreen="true"> See the Pen deck.gl FirstPersonView by vis.gl (@vis-gl) on CodePen. </iframe>

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