valhalla

svelte-maplibre-valhalla

This is a svelte component to add valhalla control for maplibre-gl

Install

npm i @watergis/svelte-maplibre-valhalla

or

yarn add @watergis/svelte-maplibre-valhalla

Usage

See Example.

<script lang="ts">
import {
		ValhallaIsochronePanel,
		ValhallaRoutingPanel,
		type ValhallaIsochroneOptions,
		type ValhallaRoutingOptions
	} from '$lib';
// create maplibre.Map object
let map = new Map();

let valhallaUrl = 'https://valhalla.water-gis.com';
let valhallaIsochroneOptions: ValhallaIsochroneOptions = {
	Contours: [
		{
			time: 3,
			distance: 1,
			color: 'ff0000'
		},
		{
			time: 5,
			distance: 2,
			color: 'ffff00'
		},
		{
			time: 10,
			distance: 3,
			color: '0000ff'
		},
		{
			time: 15,
			distance: 4,
			color: 'ff00ff'
		}
	],
	isochrone: {
		font: ['Roboto Bold'],
		fontSize: 16,
		fontHalo: 1,
		fontColor: '#000000',
		fontHaloColor: '#fff'
	}
}
let valhallaRoutingOptions: ValhallaRoutingOptions = {
	font: ['Roboto Medium'],
	fontSize: 14,
	fontHalo: 3,
	fontColor: '#263238',
	fontHaloColor: '#fff',
	iconImage: 'marker',
	iconSize: 1
};

</script>

<ValhallaIsochronePanel
	bind:map={$map}
	bind:url={valhallaUrl}
	bind:options={valhallaIsochroneOptions}
	/>

<ValhallaRoutingPanel
	bind:map={$map}
	bind:url={valhallaUrl}
	bind:options={valhallaRoutingOptions}
	/>

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Creating a project

If you're seeing this, you've probably already done this step. Congrats!

# create a new project in the current directory
npm create svelte@latest

# create a new project in my-app
npm create svelte@latest my-app

Developing

Once you've created a project and installed dependencies with npm install (or pnpm install or yarn), start a development server:

npm run dev

# or start the server and open the app in a new browser tab
npm run dev -- --open

Building

To create a production version of your app:

npm run build

You can preview the production build with npm run preview.

To deploy your app, you may need to install an adapter for your target environment.