Maperture: Stamen's map compare tool

A web application for comparing webmap styles.

View a demo here.

Get started

Install the dependencies: yarn install
Make a local config module: cp public/config/local.example.js public/config/local.js and edit the config file as appropriate
Start the dev server: yarn dev

Building and running in production mode

Create an optimised version of the app: yarn build. If you will serve the built app from a subpath such as /compare-tool/ rather than the root domain, use the BASE_PATH environment variable to set it: BASE_PATH=/compare-tool/ yarn build
Deploy public/ to a server.

Local config

The compare tool allows you to use a local config file (public/config/local.js) to customize for your use case.

Here, you can customize the following options:

mapboxGlAccessToken: Your Mapbox GL token to allow style reads
mapboxBaseApiUrl: (optional) Support for a Mapbox flavored style that is served from a different server other than api.mapbox.com, e.g., Mapbox Atlas.
maptilerApiKey: Your MapTiler API key to use with maptiler-sdk
googleMapsAPIKey: Your Google Maps API key to enable API usage
stylePresets: A list of styles with urls to show in the dropdowns. Styles must have the following keys:
- id: a unique id
- name: a display name
- type: the type of map or referencing a sublist of presets (mapbox-gl, maplibre-gl, maptiler-sdk, google, leaflet, sublist)
- url: (currently applies to mapbox-gl, maplibre-gl, maptiler-sdk and leaflet maps only) the style's url
- mapId: (currently google only) the style's id
- [presets]: used only with type: sublist, this allows one level of nesting to add an additional nested list of style presets following this format
branchPatterns: An array of objects that specify how to build a URL to fetch a style living on a branch with the following keys:
- pattern: a tokenized url pattern using {branch} and {style} tokens
- styles: an array specifying specific styles you can view on the specified branch
- type: the type of map (mapbox-gl, maplibre-gl, google, leaflet)
stylePresetUrls: An array of URLs pointing to additional presets. URLs must point to JSON arrays containing objects of the same shape as those in stylePresets.
viewMode: The starting view configuration, one of swipe (the default), mirror, phone, or responsive.
mapState: An object containing options for the Mapbox or MapLibre Map (see MapOptions in the MapLibre documentation).
gazetteer: An object that specifies the options available in the interface for navigating directly to specific geographic locations or changing other view options such as the pitch and zoom of the map. The object is a map of option group names to arrays of options. Each option is an object of names to map options to update.

See defaultGazetteer in src/make-config.js for the default gazetteer, but as an example you might use:
```
const gazetteer = {
  Locations: [
    {
      'San Francisco, CA': {
        zoom: 18,
        center: { lng: -122.4193, lat: 37.7648 },
      },
    },
    {
      'Washington DC': {
        zoom: 12,
        center: { lng: -77.0435, lat: 38.9098 },
      },
    },
  ],
};
```
This creates an option group called Locations with two options (San Francisco and Washington DC). Selecting San Francisco or Washington DC zooms and centers the map view as specified.

For more details on how these should look, see the example in public/config/local.example.js.

Setting up the app in your repo

1. Install this module into your repo.

npm i github:stamen/maperture#<release> or yarn add github:stamen/maperture#<release>

2. Set up files to serve app

When setting up the app in your repo, you'll want to create a directory that can house:

An index.html file to serve the app
A local config file (specified above)
The copied over module files (see step 3)

Your index.html file should look like the following:

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width,initial-scale=1" />

    <title>Maperture</title>

    <link rel="stylesheet" href="./dist/bundle.css" />
  </head>

  <script type="module">
    import { startApp } from './dist/bundle.js';
    import * as localConfig from './local.js';

    startApp(document.body, { localConfig });
  </script>

  <body></body>
</html>

3. In addition, prior to serving the compare tool in your repo, you'll want to add a simple build script to your package that will copy our module files into the appropriate directory where `tool/dir/path/` is the directory you've created to serve the app from:

"build-compare": "rm -rf tool/dir/path/dist && cp -r node_modules/maperture/dist tool/dir/path/dist"

You will run this build script prior to serving the app from index.html or publishing the app anywhere to ensure files are up to date.

The final directory structure should look like:

root/
  - maperture/
    - dist/
      - bundle.js
      - bundle.js.map
      - bundle.css
    - index.html
    - local.js

Name		Name	Last commit message	Last commit date
Latest commit History 156 Commits
.github		.github
.husky		.husky
dist		dist
public		public
scripts		scripts
src		src
.gitignore		.gitignore
.prettierrc		.prettierrc
CHANGELOG.md		CHANGELOG.md
LICENSE		LICENSE
Maperture_demo.gif		Maperture_demo.gif
README.md		README.md
package.json		package.json
rollup.config.js		rollup.config.js
rollup.config.package.js		rollup.config.package.js
silly_maperture_logo.png		silly_maperture_logo.png
yarn.lock		yarn.lock

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Maperture: Stamen's map compare tool

Get started

Building and running in production mode

Local config

Setting up the app in your repo

1. Install this module into your repo.

2. Set up files to serve app

3. In addition, prior to serving the compare tool in your repo, you'll want to add a simple build script to your package that will copy our module files into the appropriate directory where `tool/dir/path/` is the directory you've created to serve the app from:

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Maperture: Stamen's map compare tool

Get started

Building and running in production mode

Local config

Setting up the app in your repo

1. Install this module into your repo.

2. Set up files to serve app

3. In addition, prior to serving the compare tool in your repo, you'll want to add a simple build script to your package that will copy our module files into the appropriate directory where tool/dir/path/ is the directory you've created to serve the app from:

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3. In addition, prior to serving the compare tool in your repo, you'll want to add a simple build script to your package that will copy our module files into the appropriate directory where `tool/dir/path/` is the directory you've created to serve the app from:

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