Leaflet/Leaflet.markercluster
Leaflet.markercluster
Ce projet est un plugin de clustering de marqueurs et un outil de visualisation cartographique pour Leaflet. Il fonctionne comme une bibliothèque de regroupement qui organise de grands jeux de données de points géographiques en clusters pour réduire l'encombrement visuel et améliorer les performances et la lisibilité du navigateur.
La bibliothèque inclut un gestionnaire de marqueurs qui organise les points qui se chevauchent dans une disposition radiale, garantissant que les marqueurs individuels partageant les mêmes coordonnées restent visuellement distincts et cliquables.
Elle offre des capacités pour une iconographie de groupe personnalisée, des aperçus de limites géographiques pour les groupes de marqueurs et des ajustements de zoom automatisés pour s'adapter aux limites d'un cluster sélectionné. Le système gère également la gestion des marqueurs en masse en utilisant le chargement par blocs (chunked loading) pour empêcher l'interface du navigateur de se figer lors du traitement de grands jeux de données.
Features
- Geographic Visualization Tools - Provides a specialized tool for plotting and managing bulk location-based markers on interactive maps.
- Hierarchical Clustering - Organizes marker groups into a tree structure where child clusters merge into parents at lower zoom levels.
- Visualization and Mapping - Reduces map clutter by grouping nearby markers into clusters for improved performance and visual clarity.
- Grid-Based Spatial Partitioning - Uses a fixed grid to group nearby markers into clusters based on coordinate proximity.
- Layout Algorithms - Calculates radial offsets for overlapping markers to ensure each remains visually distinct and clickable.
- Marker Clustering - Groups nearby map markers into aggregate icons to minimize visual clutter in Leaflet maps.
- Radial Marker Layouts - Arranges markers at the same location into a spider-like layout to ensure each remains clickable.
- UI Thread Chunking - Implements chunked loading to process large marker sets without freezing the browser interface.
- Bounding Box Calculations - Calculates the geographic bounding box of a cluster by aggregating its constituent child markers.
- Marker Visuals - Provides customization of marker group visuals based on item counts or specific data attributes.
- High-Performance Rendering - Optimizes map performance for thousands of markers using clustering and chunked loading to minimize DOM overhead.
- Cluster Bound Previews - Displays the geographic boundaries of all markers within a group when a user hovers over the cluster.
- Map Marker Managers - Manages the placement and layout of overlapping markers using a radial separation system.
- Cluster Bounds Zooming - Automatically adjusts the map view to fit the geographic area of markers within a selected group upon clicking.
- Cluster Icon Customization - Allows defining custom icons for marker groups based on the number of items or real-time data.
- Chunked Loading - Implements chunked loading to prevent the browser interface from freezing when adding or removing large sets of markers.
- Map Point Detail Navigations - Enables users to drill down into dense data points by zooming into clusters or expanding markers.
