{"version":"1.0","type":"rich","title":"HTML Starter","description":"This example demonstrates a crosshair annotation that follows pointer movement over an SVG. The visualization uses d3fc's `annotationSvgCrosshair` and `pointer` APIs to track mouse position and render intersecting horizontal and vertical lines at that location. Scales are defined with d3.scaleLinear. The code renders to a 1000x1000 SVG element within an HTML page, with a React framework setup. Each pointer event triggers a re-render, updating the crosshair's datum with the latest cursor coordinates.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e216a0ad3c734983a0a1d88ed704dc9c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}