@nsc-earth-2/compass

A compass widget for Cesium based on @nsc-earth-2/common library. 中文 Readme

Installation

npm install @nsc-earth-2/compass

Usage

The Compass widget can be used in a Cesium app to display a compass. To use the widget, first import it into your project:

import Compass from "@nsc-earth-2/compass";

Next, create a new instance of the widget and pass it your Cesium Viewer instance:

const viewer = new Cesium.Viewer("cesiumContainer");
const compass = new Compass(viewer);

You can also customize the widget by passing an options object when creating a new instance:

const compass = new Compass(viewer, {
  container: document.getElementById("compass-container"),
  tips: {
    inner: "North",
    outer: "Rotate",
  },
});

API

constructor(viewer: Cesium.Viewer, options?: CompassOptions)

Creates a new instance of the Compass widget attached to the specified Cesium Viewer.

Parameters

• viewer: The Cesium Viewer instance to attach the widget to.
• options (optional): An object containing optional parameters for the widget.

enabled

A boolean property that controls whether the widget is enabled or not.

ready

A boolean property indicating whether the widget is ready or not.

hide()

A method for hiding the widget.

show()

A method for showing the widget.

destroy(): void

Mounts the content of the widget.

Options

The following options can be passed when creating a new instance of the Compass widget:

• container (optional): The DOM element to mount the widget to. Defaults to viewer.container.
• tips (optional): An object containing strings for the inner and outer tips of the compass. Defaults to { inner: '', outer: 'Drag outer ring: rotate view.\nDrag inner gyroscope: free orbit.\nDouble-click: reset view.\nTIP: You can also free orbit by holding the CTRL key and dragging the map.' }.