Parallel Categories 3D
Signature
sp.parcats3d(title, axes=None, category_series=None, *, variant="basic", orientation3d="iso", scene="default", theme="none", zone=None, max_points=None, bg_color="#1a1a2e", width=900, height=520, x_label="", y_label="", z_label="", **kwargs) -> Chart
Aliases: sp.build_parcats3d_chart(), sp.parcats_3d(), sp.parcats3d_chart(), sp.parallel_categories3d().
Description
sp.parcats3d() is the 3D twin of sp.parcats(): both parcats variants share the same 3D form, selected with the same variant keyword and fed with the same rows, reusing the sankey 3D chart’s own node-column-plus-ribbon layout under the hood — every distinct category value on every axis becomes its own node, and each row contributes to the ribbon connecting its category on one axis to its category on the next.
Variants
| Variant | Aliases | Uses | 3D form |
|---|---|---|---|
basic | default, classic, flat | axes, category_series | One column per distinct category, one ribbon per row-to-row transition. |
highlight | dominant, spotlight, focus_flow | axes, category_series | The same layout with thinner, more understated ribbons. |
Data
axes names each stage and category_series gives one row per record, one category value per axis.
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.