Raster & Vector II

Raster & Vector II

A map of the United States uses a red outline to show state boundaries over OpenStreetMap raster tiles. The code combines d3-tile for tile loading, d3.geoMercator and d3.geoPath for reprojecting TopoJSON vectors, and d3-zoom for pan and zoom. On each interaction, the tile set and vector geometry are recomputed rather than relying on a transform, with tiles rendered as SVG images.

92% match

Raster & Vector III

This example demonstrates pan and zoom interactions on a map of US counties, combining raster OpenStreetMap tile images with vector boundaries rendered as red outlines. The code uses d3-tile to load and position raster tiles, and d3.zoom to manage the user-driven transformations. A d3.geoPath with a Mercator projection draws a TopoJSON mesh of counties, while the zoom handler updates both the tile positions and the vector’s transform and stroke-width for efficient performance. The vector data is fetched from a GitHub-hosted TopoJSON file.

91% match

Raster & Vector 4.0

This example shows an interactive map of the United States with OpenStreetMap raster tiles overlaid by a vector outline of US counties. It combines zooming and panning with a Mercator projection. The code uses D3 v4.0 alpha, the d3-tile library for tile loading, and d3.geoPath with TopoJSON to render county boundaries. As the user zooms, the vector path’s stroke-width adjusts to maintain a constant screen-space width, while the raster tiles dynamically load from OpenStreetMap servers.

91% match

Raster & Vector III

This example shows how vector geographic features (U.S. counties) can be overlaid on raster map tiles from OpenStreetMap, with both layers staying aligned during pan and zoom interactions. The vector layer is rendered as a single SVG path using `d3.geoPath` and a `d3.geoMercator` projection, while raster tiles are fetched and positioned via `d3.tile` and `d3-zoom`. Instead of reprojecting, the code updates the SVG transform and stroke-width for efficiency, using `d3.zoomIdentity` and the `on("zoom")` event.

86% match

Raster & Vector I

This example overlays vector street data from a TopoJSON file onto raster map tiles from OpenStreetMap. The visualization uses d3-tile to fetch and position the image tiles, while d3.geoPath renders a black mesh of road lines over them. The map is centered on Detroit using a Mercator projection configured with d3.geoMercator. Both the raster tiles and the vector streets are drawn as SVG elements, combining the two data types in a single static view. The code also loads the TopoJSON with d3.json and converts it to a mesh using the topojson library.

85% match

Raster & Vector IV

This example shows U.S. state capitals as red points on an interactive pan-and-zoom map of the United States, with raster map tiles from OpenStreetMap displayed beneath the vector data. Using d3-tile to load and position the image tiles, d3-zoom to handle pan and zoom gestures, and a d3.geoMercator projection with d3.geoPath to render the point locations from a CSV dataset, the map updates the tile layer and redraws the points on every zoom event, supporting scale levels from 2^11 to 2^14.

85% match

Raster & Vector IV

This visualization combines OpenStreetMap raster tiles with vector overlay points, showing the locations of all 50 U.S. state capitals. The SVG rendering uses d3.tile to fetch and position image tiles, while a CSV dataset provides latitude/longitude coordinates for each capital, which are drawn as red points using d3.geoPath with a Mercator projection. Pan and zoom interactions are handled by d3.zoom, which dynamically updates both the tile layer and the overlaid points. The map initially centers on the contiguous United States.

84% match

Raster & Vector I

This example displays geographic vector boundaries overlaid on a raster map of Detroit. Using d3-tile to fetch and position OpenStreetMap image tiles, it renders them as a base layer within an SVG canvas. The d3.geoPath and d3.geoMercator projections draw a TopoJSON mesh of Detroit’s streets on top, creating a composite view of vector data and raster imagery.