! Invert the scale division \sa inverted() */

\return True, when no item is inserted

Catalog key (opaque "dataset:N/topic:M/column:K") for a given topic id.

! \return The relative size of the legend in the plot. \sa setLegendPosition() */

! \return Geometry for the legend \sa activate(), invalidate() */

Top-of-stack Lua scalar -> JSON (numbers/bools/strings; else null).

Helper: build a chunk from an explicit (possibly non-uniform / duplicated) timestamp list. The column value equals the row index, so a returned row_in

Many tracks in a short viewport → the scene overflows vertically, so the vertical scrollbar/pill is live and the ruler must stay pinned to the top.

! \return Mode of the dial. \sa setMode(), origin(), setScaleArc(), value() */

Signed month comparison. Returns 0 for an invalid date.

effective_scale = on-screen pixels per image pixel; the renderer's view transform multiplies geometry by this, so on-screen width = image extent × eff

Canonical packed color: byte0=R, byte1=G, byte2=B, byte3=A (little-endian uint32).

Wrap serialized bytes as a self-owning PayloadView (anchors its own buffer).

! \return Origin of the scale \sa move(), length() */

\return Position of the marker

Pump the event loop for `ms` milliseconds to let timers and queued connections fire.

Min/max orbit radius for the current scene: `lo` keeps the eye outside the near plane; `hi` is scene-aware so a large costmap is reachable (or 1e7 whe

! \return upperBound() - lowerBound() */

Dispatch + force completion + poll, so the test reads back synchronously.

Render a qrc SVG into a theme-inked QIcon.

! Reset the state machine and terminate ( end(false) ) the selection */

\return QwtPlotItem::Rtti_PlotGrid

Repair an externally-sourced CameraState (a deserialized layout, or a state adopted across a model switch) so it can never drive a degenerate projecti

Return the selection type

! Change the scale attribute \param attributes Set scale attributes \sa Attribute, attributes() */

! Set the background brush \param brush Background brush \sa backgroundBrush(), setBorderPen() */

! Assign a brush. The brush is used to fill the area in Tube style(). \param brush Brush \sa brush(), pen(), setStyle(), CurveStyle */

! Assign a brush, that is used in a style() depending way. \param brush New brush \sa pen(), brush() */

! Specify an attribute for drawing the curve \param attribute Curve attribute \param on On/Off /sa testCurveAttribute(), setCurveFitter(

Update only the tinted data span (display-ns), keeping the rest of the layout — used to track the band live during a bar drag without a rebuild.