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Symbols for Data Visualization
130 สัญลักษณ์
Block elements and geometric shapes in Unicode enable lightweight text-based charts, progress bars, and sparklines that render in terminals, log files, and plain-text reports without any image or library dependencies. Characters like ▁▂▃▄▅▆▇█ create sparkline histograms, while geometric shapes serve as legend markers. This reference covers the block element, box drawing, and geometric shape ranges most useful for data visualization alongside arrows and indicators for trend representation.