Zoom-aware sampling

This demo makes ChartGPU’s zoom-aware sampling visually obvious: when you zoom in, the chart keeps more points so high-frequency detail and spikes reappear; when you zoom out, it down-samples aggressively to stay fast.

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Sampling mode samplingThreshold

Dataset

Total points

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X domain

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Sampling

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samplingThreshold

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Zoom window (drives zoom-aware sampling)

Zoom range

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Span

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Visible raw points (approx)

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Target sampled points (approx)

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Expected rendered points (approx)

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Gestures: mouse wheel zooms (inside plot); Shift + drag pans (inside plot). The slider below the x-axis controls the same window. Sampling affects rendering + cartesian hit-testing only; axis bounds use raw (unsampled) data.