v4.3.1

4.3.1 (2025-09-03)

Bug Fixes

• Disable some plugins when there is no data loaded into any relevant viewer, and fix tracebacks
  when unloading all data. [#3730]

• Distance measurement marks now update properly upon unit conversion. [#3716]

• Use validator on subset layer visibility and subset deletion to ensure toggling visibility and
  deleting subsets from data menu and plot options updates accordingly. [#3708]

• Fixed a bug in freezable state _set_zoom_radius_center where x/y_min/max values were calculated incorrectly when the viewer was rotated [#3731]

• Fixed issue in Rampviz where new loader infrastructure was unintentionally exposed. [#3740]

• Restrict polynomial order value of Polynomial1D model component to be >= 0. [#3741]

• When all data is unloaded from 1D Spectrum viewer, and new data is loaded, the unit setting in the unit conversion plugin from the initial
  dataset are maintained. [#3746]

Cubeviz

• Fixed issue with initial model components not using spectral y axis unit. [#3715]

• Fixed reestimating model parameters when cube fitting in the case where the cube's
  first axis is the spectral axis. [#3717]

• Fixed issue with initializing model components when a spectral subset is selected and
  Cube Fit is toggled on. [#3727]

Specviz2d

• Fix various bugs in the Line Analysis plugin, including some issues with spectral axis unit conversions and deletion of subsets. [#3746]