By default, heatmaps display the closest heatmap cell value to each pixel that is rendered on the screen.
With dense, high resolution heatmaps, this can mean that there is no guarantee which data value is displayed in a pixel.
Heatmap aggregation can be enabled to specify this behavior (which value to show when multiple cell values are contained by single pixel)
at the expense of a performance hit.
Heatmap aggregation mode.
By default, heatmaps display the closest heatmap cell value to each pixel that is rendered on the screen. With dense, high resolution heatmaps, this can mean that there is no guarantee which data value is displayed in a pixel.
Heatmap aggregation can be enabled to specify this behavior (which value to show when multiple cell values are contained by single pixel) at the expense of a performance hit.