# XWUIChartDistanceTime

A distance-time chart: a fixed-type (`type: 'distanceTime'`) wrapper around
`XWUIChart` that plots distance against time, so the slope of each line reads as speed
(the classic physics motion graph). Pass each moving object as a `series` of
`{ x, y }` points plus a `block` preset (1-4) and `size` (`sm` / `md` /
`lg`); legend, grid, axis, and line-style toggles come from the shared block
config. Use it for journey schedules, train graphs, or any motion-over-time view.

## Basic Usage

Two monthly series plotted as distance-versus-time lines at the md size preset.

```example
file: examples/BasicUsage.ts
html: examples/BasicUsage.html
title: Basic Usage
description: Two {x, y} series drawn as distance-versus-time lines via the distanceTime chart type.
```

## Train Graph: Express vs Local

A classic rail "train graph" where flat segments are station dwell time and slope is line speed.

```example
file: examples/TrainJourney.ts
html: examples/TrainJourney.html
title: Train Graph: Express vs Local
description: Express and all-stops services share one line; stops and a signal hold show as flat segments.
```

## Marathon Progress

Two runners' cumulative distance over elapsed time, comparing a race leader against an even-paced 3:30 group.

```example
file: examples/MarathonSplits.ts
html: examples/MarathonSplits.html
title: Marathon Progress
description: Leader vs 3:30 pacer plotted as non-decreasing distance over time across 5 km splits.
```

```api
```