February 26, 2023
Example of leaflet map with zip codes written in angular
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Leaflet
Leaflet.js
ArcGIS Story Maps
MapBox Studio
@angular/google-maps
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Map Libraries
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Research
Source: "Angular.js - Need to create a smart, interactiv..." (from reddit, r/javascript)
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Mapbox.js
- Can create directive to manage list of locations associated with a map
- When user hovers over list item, tooltip appears above location’s marker on the map
- When user hovers atop location’s marker on the map, tooltip appears above that marker
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Leaflet.js
- Can create directive to manage list of locations associated with a map
- When user hovers over list item, tooltip appears above location’s marker on the map
- When user hovers atop location’s marker on the map, tooltip appears above that marker
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Angular-Leaflet directive
- Can create directive to manage list of locations associated with a map
- When user hovers over list item, tooltip appears above location’s marker on the map
- When user hovers atop location’s marker on the map, tooltip appears above that marker
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Backbone
- Better suited for this than Angular since it doesn’t have to use the DOM
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OpenLayers
- Can choose to use GoogleMaps as the map server in the beginning
- Can transition to operating own map server if needed
Source: "Angular Leaflet: Dynamic Blank Map" (from reddit, r/gis)
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Get a geoJSON file of the country boundaries (with name as attribute data). Load that into leaflet on top of an OSM basemap (or whatever basemap you want).
- Write code to select a country, highlight or change the style of that one feature and then add a Marker Point with a div Text to it’s centroid as a label pulling the attribute name from the country selected.
- On selection of another country, remove the highlight and old marker label, re add the new feature to the highlight/label etc.
- Here is an ArcGIS layer with country outlines. Since this layer supports ‘dynamic layers’ your code can restyle the data. Use ESRI’s leaflet plugin to display this layer.
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Could you implement a GeoServer instance? That way you could create a WMS, based on a simple shapefile with the data you want. At least you could have the simple basemap you need.
- Regarding the interaction, the suggestion is to overlay an “invisible” WFS with the same data (the previous shapefile, but with an empty style, 100% transparency on the layer) and only when clicking on the country, dinamically change the style and open a popup with information.
- For the world borders, you can use GADM (URL: https://gadm.org/).
Source: "How to use Map Libraries in Angular | Geoapify" (from web, www.geoapify.com)
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Angular + Leaflet: perfect for fast rendering and browsing
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Use
--save-dev
flag for type definitions to keep them in devDependencies - Set the maximal zoom level for the Leaflet map up to the 20th zoom level
- Cite Geoapify, OpenStreetMap, and OpenMapTiles when using the tile layer
- Use raster map tiles to build a map
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Use
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Angular + MapLibre GL (Mapbox GL): vector maps for your flexibility
- Install MapLibre GL and required GeoJSON types
- Add MapLibre GL styles to angular.json
- Create a MapLibre Angular component
- Use vector maps for MapLibre GL
Source: "Anyone used AngularJS with LeafletJS? Got any t..." (from reddit, r/angularjs)
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Leaflet Directive
- There is a leaflet directive available, but it can have performance issues with a few markers over the top.
- The directive keeps watches markers, which is great for real time updates, but can hinder performance.
- It might be something in the implementation causing the performance issues.
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AzimutJS (based on AngularJS)
- There is a Leaflet example available on the website.
- The demos don’t seem to load.
- It doesn’t do a good job of describing what the library does.
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Service
- Making a service can give more flexibility to load the layer data as and when it’s needed.
- Writing a directive that uses angularjs-leaflet-directive and encapsulates additional functionality may be helpful.
Source: "To integrate with Google maps, would you prefer..." (from reddit, r/Angular2)
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@agm/core
- Popular solution for integrating with Google Maps
- Only option at the time
- Fairly easy to use
- Detailed documentation lacking
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@angular/google-maps
- Supported by the Angular team and Google devs
- Wraps the Google Maps API in a cleaner way
- Features have been added since its release
- Part of the official Angular components repo
- Compatible with Angular 10.2.7 and up
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@agm/core abandoned in 2021
- Last commit from May 2021
- Issue about supporting Angular 14 un-answered
💭 Looking into
What are the best practices for building interactive maps with Angular and zip codes?
💭 Looking into
What other map-generating tools are available for use with Angular and zip codes?
💭 Looking into
What are the performance considerations when using Ngx-leaflet for an Angular map with zip codes?
💭 Looking into
What are the pros and cons of using MapBox Studio for Angular maps with zip codes?
💭 Looking into
What Leaflet.js versions are compatible with Angular?
Source: "The Simple Guide to Angular Leaflet Maps - Medium" (from web, medium.com)
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Create a Leaflet map in an Angular-CLI based project
- Install leaflet, @types/leaflet, and @asymmetrik/ngx-leaflet
- Add Leaflet CSS to angular.json and control CSS to styles.css
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Use global
L
variable structure and.extend
methods to avoid TS issues -
Use
ng build --prod
with“buildOptimizer”: false
inangular.json
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Import typedefs by name from
'leaflet'
instead of usingL
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Create an OpenStreetMap map as a separate component with
@Inputs()
- Emit map, zoom, move and layer events to parent component
- Add the map component to the parent HTML
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Use zip codes in Leaflet maps
- Add Zip Code layer to map
- Use Leaflet map events to filter by zip code
- Add Zip Code search bar to map
Source: "Angular 2+ and implementing Leaflet maps (Open ..." (from web, stackoverflow.com)
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Leaflet maps with Angular 2+
- Add dependencies to package.json
- Add Leaflet to webpack.config.vendor.js
- Create LeafletMapComponent
- Add #leafletMap div and style
- Run app with npm install, webpack, and dotnet run
Source: "Question: How do I create an interactive fantas..." (from reddit, r/gis)
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Leaflet.js
- Tutorial link provided: https://leafletjs.com/examples/crs-simple/crs-simple.html
- YT videos can be helpful in understanding Leaflet
- Can create a large image of a fantasy map in illustrator/photoshop for a basemap
- ArcGIS Story Maps
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Fantasy Map Generator
- URL provided: https://azgaar.github.io/Fantasy-Map-Generator/
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MapBox Studio
- Tutorial link provided: https://docs.mapbox.com/help/tutorials/create-a-custom-style/
Source: "Building Maps in Angular Using Leaflet, Part 1:..." (from reddit, r/Angular2)
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Using leaflet directly gives you more flexibility
- According to a reddit user, using leaflet directly gives more flexibility than using ngx-leaflet
- Another reddit user confirms that the regular leaflet is not that flexible
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Ngx-leaflet
- According to a reddit user, using ngx-leaflet is an option for building leaflet maps with zip codes written in angular
💭 Looking into
What is the best example of an angular leaflet map with zip codes?