homework 9.1

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Last edited Apr 6, 2017

Created on Apr 6, 2017

This interactive map displays global earthquake activity from the USGS feed overlaid on an OpenStreetMap basemap. Red paths outline the state boundaries of the United States, while each earthquake is drawn as a red path stroke using `d3.geoPath`. The view uses a Mercator projection with pannable and zoomable tiles via `d3.tile` and `d3.zoom`, and it shows geographic coordinates of the mouse position. The SVG rendering relies on TopoJSON for the boundary mesh and D3 version 4.

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Assignment 9

This interactive map displays earthquake locations from the USGS weekly feed overlaid on OpenStreetMap raster tiles and U.S. state boundaries from TopoJSON. Users can pan and zoom via d3.zoom, with d3-tile loading map tiles and d3.geoPath reprojecting the vector geometry on each interaction. The map also shows the geographic coordinates of the mouse cursor in real time.

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class 3

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