{"version":"1.0","type":"rich","title":"Reusable Barley (Block) PunchCard Chart v5 - static","description":"This static punchcard chart visualizes barley yields across multiple sites and years using a reusable D3.js v5 module. It displays data points as circles positioned by year on the x-axis and site on the y-axis, with circle radius encoding yield values. The chart implements the general update pattern derived from Mike Bostock’s reusable charts approach, adapted with the ProD3 pattern. It uses d3.scalePoint, d3.scaleLinear, d3.scaleSqrt, and d3.schemeAccent to render the SVG elements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e834ba2fdecf4637b181dd27146a76fa?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}