Class VolumeProfileController

C4 public entry point. Overlays a horizontal VolumeProfilePrimitive (volume binned by price over the visible window) on a chart through the host's primitive framework. Constructed explicitly by the host (new VolumeProfileController(chart)), which is exactly why volume profile adds nothing to the base bundle: the base chart never references this class.

Usage:

import { VolumeProfileController } from '@rekurt/openkline-core';
const vp = new VolumeProfileController(chart);
vp.show({ bins: 30, side: 'right' });
// ... user pans/zooms; the profile recomputes from the visible window ...
vp.update();          // repaint after external data changes
vp.hide();
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The primitive reads the visible window live via host.visibleCandleView(), so panning/zooming reshapes the profile automatically on the chart's own render cycle — update() is only needed to force a repaint after data arrives without user interaction.