{"version":"1.0","type":"rich","title":"Homework 7","description":"The visualization displays hourly air quality measurements from a Seoul monitoring station as a horizontal chart, with each line representing a pollutant such as SO2, NO2, or PM2.5 across time. Users can zoom into specific date ranges using a dual-handle time slider that filters the displayed data. The rendered SVG chart uses D3.js v7’s `d3.drag` for interactive range selection, `d3.group` to organize data by pollutant and date, and a custom `multitext` function for labeling. The underlying data comes from a CSV file containing pollutant concentrations and timestamps.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ea325dcbd5d142d896b806ec7970a72a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}