Histogram Chart 3D
Signature
sp.histogram3d(title, values=None, *, variant="basic", bins=0, overlay=None, color_groups=None, series_names=None, orientation3d="iso", scene="default", theme="none", bg_color="#1a1a2e", width=900, height=560, x_label="", y_label="", z_label="", **kwargs) -> Chart
Aliases: sp.build_histogram3d_chart(), sp.histogram_3d(), sp.histogram3d_chart(), sp.hist3d().
Description
sp.histogram3d() is the 3D twin of sp.histogram(): every one of the 7 histogram variants has a 3D form, selected with the same variant keyword and binned by the same rule as the 2D chart. Columns, stacks, side-by-side rows and plates come from the shared column strategies, so geometry is never hand-written per variant.
Variants
| Variant | Aliases | Uses | 3D form |
|---|---|---|---|
basic | simple, default, vertical | values, bins | One column per bin; height is the sample count. |
horizontal | h, barh, hbar | values, bins | The basic layout turned a quarter-turn: bins run along the depth axis. |
normalized | probability, density, norm, pdf | values, bins | Heights are probability densities, so the columns integrate to one. |
cumulative | cdf, cum | values, bins | Heights accumulate from the first bin to the last, ending at the sample count. |
stacked | stack, stack_by | values, color_groups | Each bin stacks one segment per color_groups category. |
overlay | overlapping, compare, ab | values, overlay, series_names | A second sample set (overlay) drawn as a parallel row beside the first. |
step | outline, stair | values, bins | Only the top of every bin as a thin plate, giving the outlined staircase look. |
Data
values are the raw samples and bins the bin count (0 picks it automatically). color_groups splits the samples into stacked groups and overlay adds a second sample set drawn beside the first.
3D planes
The viewpoint is independent from the variant: orientation3d picks the initial camera plane and applies to every variant; the view always stays draggable.
orientation3d="iso" — Isometric three-quarter view (default).orientation3d="horizontal" — Side-on view, almost at floor level.orientation3d="vertical" — Top-down view from above.orientation3d="front" — Front elevation, nearly flat.3D scenes
scene swaps the environment the columns are drawn in and applies to every variant and every plane.
scene="default" — Each series keeps its own categorical palette color, rendered as shaded 3D bars on a flat grid.scene="terrain" — The data is resampled onto a dense grid and rendered as hundreds of thin colormap-colored columns, forming a continuous mountain-of-bars terrain.scene="tower" — The data is resampled onto a dense field of round skyscraper-like towers instead of boxes, for a city-skyline reading of magnitude.scene="radial" — The data is resampled onto a dense polar grid of rings and wedges radiating from the center, like a 3D radar/sonar sweep of the value field.scene="podium" — The data is resampled onto a dense grid and quantized into stepped terrace levels, like a rice-terrace contour map, to read value bands at a glance.Themes
theme restyles the whole canvas (colour grade and glow) and applies to every variant, scene and plane.
theme="deluxe"theme="prism"theme="aurora"theme="inferno"theme="frost"theme="glow"theme="glass"theme="neon"theme="cosmic"Auto-scaling zone
The 3D zone (floor, walls, axes and camera) scales to the elements: its length, width and height follow the extents of the drawn blocks, a minimum floor depth keeps single rows readable, wide scenes are drawn flatter and the camera frames the whole box. The axis ticks read the real data range. Pass zone=[x, y, z] to force the proportions of the box instead; the longest side is normalised to 1.
Parameters
Returns
Chart object with an .html property and a .show() method.