gpxsnap@1.2.0

Minor Changes

• 2ec32f2: Add colorBy to LineStyle, reusing the existing gradient option (from
  pixelRatio's sibling feature, line gradients) as the color ramp:
  colorBy: "elevation" | "speed" positions each point along gradient by
  its own value, normalized to the route's own min/max, instead of position
  along the route's length (the previous, still-default behavior). GPX-only
  (needs <ele>/<time> data renderRoute's bare coordinates don't carry)
  and falls back silently to length-based coloring when there isn't enough
  usable data, matching stats/elevationProfile's existing convention.
• fbc615c: Add distanceMarkers to renderRoute/renderGpx: tick marks every
  interval (default 5) unit (default "km") of real-world route
  distance, perpendicular to the route at that point, with an optional
  distance label. Placed per track — no marker spans the gap between
  disconnected tracks. It's purely coordinate-based (no elevation/timestamp
  data needed), so — unlike stats/elevationProfile/legend — it's
  available on renderRoute as well as renderGpx.
• cacf0fb: Add gradient to LineStyle (the line option): overrides color,
  interpolating a list of hex color stops (or the built-in "rainbow"
  preset) along the route's own on-canvas length. Resolved per rendered
  segment, so it's smoothest on dense tracks. Needs no <time>/elevation
  data, unlike speed-based coloring.
• 0d23ed3: Add shape to MarkerStyle (start/end route markers): "circle"
  (default, unchanged) | "square" | "diamond" | "triangle". Built-in
  vector shapes drawn with the same antialiased fill approach as the rest of
  the renderer — no image assets, same dependency-free spirit as the
  hand-drawn bitmap font. The ring, if any, is drawn in the same shape,
  slightly larger.
• 0c3fc55: Add legend to renderGpx for multi-track files: a color-swatch-and-name
  key stamped in the bottom-left corner, one row per track, only drawn when
  the file has more than one track. Entries beyond LegendStyle.maxEntries
  (default 6) collapse into a trailing "+N more" row instead of growing the
  plate without bound.
• c448809: Parse <time> per GPX point. GpxPoint (and parseGpxDocument's output)
  now carries an optional time field — the raw ISO 8601 string from
  <trkpt>/<rtept>'s <time> child, kept only when it parses as a valid
  date. Not yet used by rendering — this is the foundation for upcoming
  duration/speed/pace features.
• efc465a: Add pixelRatio to renderRoute/renderGpx for high-DPI/retina output. The
  geographic framing stays identical to pixelRatio: 1; the canvas and every
  drawn element (route line, markers, badges, elevation profile) render at
  width * pixelRatio x height * pixelRatio physical pixels instead. Also
  requests retina map tiles: tileUrl templates with an {r} token get it
  substituted with @2x/@3x; templates without one (e.g. the default OSM
  source, which has no retina tiles) fall back to nearest-neighbor upscaling
  the standard tile.
• 2a9fe81: Add format/quality to renderRoute/renderGpx for WebP/JPEG output on
  Bun. The default PNG path is unchanged on every runtime — gpxsnap still
  renders and encodes the same dependency-free PNG it always did. Requesting
  format: "webp" | "jpeg" re-encodes those PNG bytes through Bun's native
  Bun.Image (no npm dependency, built into the Bun binary); it's a Bun-only
  enhancement, so requesting it on Node or Deno throws a clear error
  immediately, before any tile fetching, rather than silently falling back.