data sources for external maps, map services, vector overlays, ...

[traveller195]

to provide a better base of data and to support collection data by the citizen scientists, it would be nice to include more base maps or vector overlays in the map of the 'colouring dresden' platform.

This could be (OGC-compliant) WMS, WMTS, WFS, local available raster or vector datasets... etc.

so, here could be posted ideas for relevant services or datasets. Main topics are:

• historical topographic maps
• maps in the context of heavy rain or flooding incicents (resilience)
• maps in the context of heat (resilience)

the spatial extent is the city of Dresden (Germany) (compare aims of colouring dresden project)

[traveller195]

Open Governman Data

GeoMIS Sachsen https://geomis.sachsen.de/geomis-client/?lang=de#/

Open Data Dresden https://opendata.dresden.de/informationsportal/#app/startpage

Services from HTW Dresden (e.g. Berliner Meilenblätter) Berliner Meilenblätter Sachsen (WMS) https://geoinformatik.htw-dresden.de/geoportal/karten-und-downloaddienste/

[traveller195]

data sources, which could - perhaps - offer maps for Saxony or Dresden:

https://maps.arcanum.com/de/

https://www.davidrumsey.com/

https://maps.lib.utexas.edu/maps/

https://www.deutschefotothek.de/ https://www.deutschefotothek.de/db/apsisa.dll/ete?action=queryInfo&index=area&desc=Kartenforum

aerial imagery: https://www.historicenvironment.scot/archives-and-research/archives-and-collections/national-collection-of-aerial-photography/ https://ncap.org.uk/

https://www.luftbilddatenbank.de/main/index.php

[traveller195]

as the first base map, OpenStreetMap was added see https://github.com/colouring-cities/colouring-dresden/commit/a933602af2848d550c0f05c62e5936469e3cd8a1

[traveller195]

adapt layer switcher (for vector layer in /public/geometries or for services) here

/var/www/colouring-dresden/app/src/frontend/map

[traveller195]

different options how to include external map layers by using react-leaflet

option A - GeoJSON from internal directory <GeoJSON> --> loading data via the API from public/geometries with apiGet('/geometries/boroughs.geojson')

option B - TileLayer (XYZ-Layer) from internal tile server via API (maybe allow it for API in helpers e.g.)

<TileLayer> 
url={getTileLayerUrl('highlight', {highlight: `${selectedBuildingId}`, base: baseTileset})}
import { TileLayer } from 'react-leaflet';
import { getTileLayerUrl } from './get-tile-layer-url';

option C - TileLayer (XYZ-Layer) from external tile server via URL url="https://mapseries-tilesets.s3.amazonaws.com/london_1890s/{z}/{x}/{y}.png" (care about API Key)

option D - WMSTileLayer (loading WMS without Tiles) from external WMS via URL

<WMSTileLayer>
layers="layername of service"
url=""

[traveller195]

Schadensplan der Stadt Dresden. Bearbeitet 1945/1946 vom Stadtbauamt Dresden

https://wms.kartenforum.slub-dresden.de/map/10009467?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities

showing Dresden after WWII and its demolition of the buildings