ChartDirector is a fast and powerful charting component suitable for Ruby On Rails and standard Ruby applications. It's unique layering architecture enables you to synthesize the charts you want using standard chart layers. ChartDirector's comprehensive chart styles include pie, donut, bar, line, spline, step line, trend line, curve-fitting, inter-line filling, area, band, scatter, bubble, floating box, box-whisker, waterfall, contour, heat map, surface, vector, finance, gantt, radar, polar, ros
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