pub fn heatmap_view(data: HeatmapData<'_>, caps: &SurfaceCaps) -> Result<Expr>Expand description
Validate and project caller-prepared data to one scene/heatmap.
Oversized input is refused with a diagnostic telling the caller to apply its domain-specific detector rule first. This function never downsamples, drops, reorders, clamps, or otherwise changes a grid cell.