Gantt Chart 3D
Signature
sp.gantt3d(title, labels=None, start=None, end=None, *, variant="basic", categories=None, color_values=None, sort_order="none", orientation3d="iso", scene="default", theme="none", zone=None, max_points=None, bg_color="#1a1a2e", width=900, height=560, x_label="", y_label="", z_label="", **kwargs) -> Chart
Aliases: sp.build_gantt3d_chart(), sp.gantt_3d(), sp.gantt3d_chart(), sp.gantt3d_family(), sp.timeline3d().
Description
sp.gantt3d() is the 3D twin of sp.gantt(): every one of the 3 gantt variants has a 3D form, selected with the same variant keyword and fed with the same tasks. Every task is a slab lying along the time axis on its own row. The time and row axes are scaled independently, so a short schedule and a long one both fill the box, and the categories are toned along the colormap. Progress fills and milestone gems come from a shared timeline strategy, so geometry is never hand-written per variant. Long inputs are pooled to a budget (max_points), so hundreds of thousands of tasks stay interactive.
Variants
| Variant | Aliases | Uses | 3D form |
|---|---|---|---|
basic | default, classic, flat | labels, start, end, categories | One slab per task along the time axis, toned by category. |
progress | percent, completion, filled | labels, start, end, categories, color_values | A raised fill over the completed part of each slab, sized by color_values (0 to 1). |
milestone | diamonds, checkpoints, markers | labels, start, end, categories | Zero-length tasks (start equals end) become rhombic gems while the other tasks stay slabs. |
Data
labels name the tasks and start / end give their span (equal values make a milestone); categories colours them and color_values gives the progress of each task from 0 to 1, used by progress. Hovering a slab reads the task, its category and its span, for example Design · Plan · 0 → 6.
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.