{# Core's Depth tool (server/core_tools.py), bound in views/depthTools.js. Offered only on a volume. NO HEADING OF ITS OWN and no close -- the card core builds around an open tool carries both -- and no eye: choosing a plane draws nothing that could be hidden. Everything here is painted from one state (services/viewState.js), the same one the Z strip on the canvas edits, so the two can never disagree. The strip does the common part -- which plane, plane or projection -- and its gear the settings for what is drawn (views/depthSettings.js); this card holds what is typed or done less often: an exact plane or frame, a projection added as a layer, the z step when the file states none. #}

{# `data-depth-plane-row`: hidden in 3-D, where the plane is frozen; `data-depth-entry`: the whole grid, when neither row is there. #}

Plane

{# The projection on screen is computed tile by tile, and its zoomed-out levels pool planes before combining them -- right for looking, not for reading numbers off. Adding it as a layer computes it once, exactly, at full resolution (server/volume/pin.py). Projection mode only. #}

Z step

{# The sections' sizes: the user's, for every image, not this one's (services/viewerPrefs.js). Only beside a plane: not for a colour slide's stack, which has no sections, nor in 3-D. #} {# A large stack stored plane by plane gets a copy in 3-D bricks for every read across planes -- projections, sections, the 3-D view (server/volume/bricks.py): its coarse levels in the background, finer ones for an area on demand. An OME-Zarr stack deriving the zoomed-out levels it lacks shows that here too. Hidden for a stack that needs neither. #} {# A 3-D mask (one id per cell across planes): measure each cell once, whole, into an object table (server/volume/objects.py). Shown only when the mask is a label volume, and only with Plexora 3D. #} {% if licensed('volume:objects') %} {% endif %}