{"version":"1.0","type":"rich","title":"Svelte + D3: Reveal area chart","description":"A responsive area chart reveals a pink-filled curve and its stroke line from behind a sliding rectangular mask. Built with Svelte and D3, the visualization maps a fixed dataset of x and y values using `scaleLinear` and renders smooth paths via `line` and `area` generators with a Catmull-Rom curve. A CSS animation slides the overlay rect across the SVG, progressively unveiling the chart. The visualization demonstrates reactive sizing through Svelte's `bind:clientWidth` and `bind:clientHeight`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/49f0e950195649a1b684adbf3cbb1821?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}