{"version":"1.0","type":"rich","title":"Fork of World Countries Tree","description":"This data visualization displays a hierarchical tree of Chinese academic research topics, rendered as an interactive SVG diagram. It uses the D3.js library to create a horizontal dendrogram layout, leveraging `tree()`, `linkHorizontal()`, and `zoom()` APIs for structuring, connecting, and enabling pan/zoom interactions. Node labels reflect the Chinese document outline from a JSON data source, with font size decreasing by depth. The visualization clearly maps the multi-level relationships between research areas.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9566378c8e3748f892b7fc2aeade9ab7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}