4.3 (2025-05-28)

New Features

• The Markers plugin now includes a Distance Tool to interactively measure pixel, on-sky, and axis-separated (dx, dy) distances in any viewer. The tool features a real-time preview line that follows the cursor. [#3609, #3694]

• The Plot Options plugin now highlights the tab for the active (top-most) data layer in the selected viewer. [#3514]

• Added an STC-S string region parser to the Footprints plugin. [#3479]

• General (work-in-progress) centralized app-instance available at top package-level. [#3475, #3526, #3522, #3531, #3555, #3577, #3675, #3682, #3684]

• Added a results history table to the Line Analysis plugin. Results are no longer updated in realtime with changes to inputs, but rather when clicking the button or calling get_results, at which point an entry is added to the results history table by default. [#3557]

• User API access to simplify_subset() method in the Subset Tools plugin. [#3601]

• Hitting the "Enter" key while changing a value in the Subset Tools plugin will make a call to accept the changes (equivalent to clicking the "Update" button). [#3600]

• Hitting the "Enter" key while renaming a subset or footprint will accept the changes, hitting "Escape" will cancel. [#3600]

• Added subset_label keyword argument to import_region method of Subset Tools plugin to name the resulting subset(s). [#3616]

• Ability to import subsets from the Subset Tools plugin UI. [#3639]

• Aperture Photometry public API exposed, added API hints to plugin. [#3617]

• Allow custom resolutions when exporting viewers to png or mp4. [#3478]

Cubeviz

• Ability to ingest and export SkyRegion objects. [#3502]

• Add sonified layer for each cube created by the Sonify Data plugin. [#3430, #3660]

• Sonified data can now be added to any image viewer after initial sonification. [#3690]

• Renamed Spectral Extraction plugin to 3D Spectral Extraction. [#3691]

Imviz

• load_data is deprecated in favor of load method and loaders infrastructure. Default data-labels from load_data may change in some cases, with the actual extension name used in place of [DATA] and the version number included along with the extension. [#3662, #3709, #3713]

• Loading data is now done through the loaders menu in the right sidebar. The "import data" button is deprecated and will open the new sidebar. [#3662, #3709]

• Added ability to load remote data from a S3 URI to Imviz. [#3500]

• Footprints plugin now supports selecting the closest overlay to a clicked point in the image viewer. [#3525, #3539, #3546, #3554]

• Improve performance by using FITS WCS for reference data layers when linked by WCS, rather than GWCS [#3483, #3535]

• The Export plugin now supports saving spatial subsets as STC-S strings, including CircleSkyRegion and EllipseSkyRegion, which are exported as CIRCLE and ELLIPSE STC-S shapes, respectively. [#3591, #3595]

• Improve performance by using FITS WCS for reference data layers when linked by WCS, rather than GWCS. [#3483, #3535, #3540, #3687]

Specviz

• load_data is deprecated in favor of load method and loaders infrastructure. [#3473]

• Loading data is now done through the loaders menu in the right sidebar. The "import data" button is deprecated and will open the new sidebar. [#3473]

Specviz2d

• load_data is deprecated in favor of load method and loaders infrastructure. [#3473]

• Loading data is now done through the loaders menu in the right sidebar. The "import data" button is deprecated and will open the new sidebar. [#3473]

• New plugin to vizualize the cross-dispersion profile [#3552]

• Renamed Spectral Extraction plugin to 2D Spectral Extraction. [#3691]

API Changes

• Allow get_regions and get_subsets to take a data label and have a subset apply to the wcs of that data. By setting a value for wrt_data, the user is requesting a region type that is the opposite of the current link type, (i.e. SkyRegion when linked by pixel or PixelRegion when linked by wcs.) Also deprecate the return_sky_region kwarg and leave a deprecation warning to use wrt_data instead. [#3527]

Cubeviz

• Radial profile and curve of growth in Aperture Photometry plugin are now consistent with photutils.profiles. [#3510]

• BEHAVIOR CHANGE: Change import_region method to default to creating a new subset when run. Also allow editing a subset using the edit_subset argument. [#3523]

Imviz

• Radial profile and curve of growth in Aperture Photometry plugin are now consistent with photutils.profiles. [#3510]

• Catalog Search: When catalog is imported from file, its original column names are preserved on export. [#3519]

• User API for Catalog Search plugin (including catalog, max_sources,search, table, and table_selected) is now public. [#3529]

Bug Fixes

• Improve performance when adding/removing subsets by avoiding circular callbacks. [#3628]

• Disable export and raise vue error message upon selection of unsupported subset format. [#3635]

• Fixed issue in compute_scale to handle the case when the wcs forward transform does not use units, which was previously causing issues when aligning by WCS. [#3658]

• Fixed API hints for viewers in the data-menu. [#3695]

Cubeviz

• Significantly improved the performance of Cubeviz when creating several subsets in the image viewer. [#3626]

• Broadcast snackbar message to user when sonification of a data cube completes. [#3647]

• Fixes exporting an image viewer as a movie by starting the movie at the specified slice and returning to the correct slice after exporting. [#3710]

Imviz

• Catalog Search: Fixed a bug where the plugin modifies the input table if import_catalog is used on a table instance (not from file). [#3519]

• Fix dropdowns for overlay not showing in UI. [#3640]

• Prevent image wrapping in Imviz with Roman L2 images with GWCS. [#2887]

• Fix get_zoom_limits when WCS linked and out of image bounds. [#3654]

Specviz2d

• Fixed an issue with default angle unit being set in unit conversion plugin, which fixed a bug when background data from the spectral extraction plugin is added to the viewer. [#3661]

• Fixed a bug loading array traces into Specviz2d. [#3697]

Other Changes and Additions

• Bumped minimum version of photutils to v2.2 and Python to 3.11. [#3510]

• Bumped minimum version of specutils to 2.0. [#2922]

• Added strauss, qtpy, PySide6 and roman_datamodels to the list of optional dependencies installed with the [all] extra dependencies flag (i.e., pip install jdaviz[all]). [#3556]

• Auto-update sonification label upon adding sonification to viewer. [#3430, #3656]