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<article data-uid="Anatomy-Box3dControl">
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<h1 id="box3d-control">Box3d Control</h1>
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<p>The Box3d editor edits an axis-aligned <a class="xref" href="../../api/Hi.Geom.Box3d.html">Box3d</a> through four vector rows — Min, Max,
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Dimension and Center — of which an <strong>Edit Mode</strong> selector decides which two are writable. It is
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reached wherever a Geometry slot admits the <code>Box3d</code> kind: a Control-Tree kind node under a Geometry
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slot, or the geometry switchboard embedded inline.</p>
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<h2 id="layout">Layout</h2>
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<ul>
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<li><strong>Edit Mode</strong> — a selector over three modes. Its internal values are <code>MinMax</code>, <code>MinDimension</code> and
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<code>CenterDimension</code>, labelled “Min / Max”, “Min + Dimension” and “Center + Dimension”.</li>
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<li><strong>Min</strong>, <strong>Max</strong>, <strong>Dimension</strong>, <strong>Center</strong> — four vector rows, one X / Y / Z input each. The editor
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captions Dimension “Dimension (Max − Min)” and Center "Center ((Max + Min) / 2)"; the Min and Max
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captions come from the shared label set rather than the geometry one.</li>
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</ul>
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<p>The mode rules each row read-only or editable rather than showing a different set of rows: Min is
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read-only in Center + Dimension, Max in anything but Min / Max, Dimension in Min / Max, and Center
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in anything but Center + Dimension.</p>
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<h2 id="key-model">Key Model</h2>
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<p>Only <a class="xref" href="../../api/Hi.Geom.Box3d.html#Hi_Geom_Box3d_Min">Min</a> and <a class="xref" href="../../api/Hi.Geom.Box3d.html#Hi_Geom_Box3d_Max">Max</a> are settable on the type;
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<a class="xref" href="../../api/Hi.Geom.Box3d.html#Hi_Geom_Box3d_Dim">Dim</a> and <a class="xref" href="../../api/Hi.Geom.Box3d.html#Hi_Geom_Box3d_Center">Center</a> are derived and get-only. That is why the
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other two modes are arithmetic over the same two stored corners rather than a different storage
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shape — and that arithmetic happens in the browser, which then posts the resulting Min and Max.</p>
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<h2 id="behavior">Behavior</h2>
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<ul>
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<li><strong>A row commits on blur or Enter, not per keystroke.</strong> The vector widget emits only from its blur
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handlers, suppresses the emit when the parsed value is unchanged, and reverts an unparseable entry
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to its previous value.</li>
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<li><strong>This editor has no read-only variant.</strong> A host that needs one draws its own rows instead — the
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STL file editor's read-only bounding-box rows are not this editor.</li>
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<li><strong>Four endpoints ship without a caller.</strong> The controller exposes <code>UpdateByMinDimension</code>,
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<code>UpdateByCenterDimension</code>, <code>IndexDimension</code> and <code>IndexCenter</code>; the shipped SPA calls none of them,
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because the editor resolves every mode to a plain <code>Update</code>.</li>
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</ul>
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<h2 id="source-code-path">Source Code Path</h2>
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<p>See <a class="xref" href="../index.html">HiNC App Anatomy</a> for git repository links.</p>
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<p>HiNC-2025-webservice (Quasar CLI SPA):</p>
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<ul>
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<li><code>wwwroot-src/src/components/geom/Box3dEditor.vue</code> — the editor: the Edit Mode selector, the four
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vector rows and their per-mode read-only rules, and the client-side arithmetic behind the two
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derived modes. Its only prop is the IndexService key.</li>
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<li><code>wwwroot-src/src/components/widgets/Vec3Input.vue</code> — the X / Y / Z row widget, in standard or
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single-field text mode; its <code>readonly</code> prop is what the edit mode drives.</li>
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<li><code>wwwroot-src/src/components/geom/geometryEditors.ts</code> — maps the <code>Box3d</code> kind to this editor, the
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single map both the switchboard and the Control Tree resolve through.</li>
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<li><code>wwwroot-src/src/components/geom/GeometryEditor.vue</code> — the kind picker that creates a Box3d and,
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outside selector-only mode, embeds this editor beneath itself.</li>
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<li><code>wwwroot-src/src/components/controlTree/itemTypes.ts</code> — registers <code>Box3d</code> against the sole-editor
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panel and lists it among the kinds a container may hold.</li>
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<li><code>wwwroot-src/src/components/controlTree/SoleEditorPanel.vue</code> — the kind node's panel, resolving
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<code>Box3d</code> through the kind map and binding the editor to the node's key.</li>
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<li><code>wwwroot-src/src/components/controlTree/GeometrySlotPanel.vue</code> — the Geometry slot's picker, from
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which a Box3d is chosen.</li>
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<li><code>wwwroot-src/src/api/geometry.ts</code> — <code>getBox3d</code>, <code>indexBox3dMin</code>, <code>indexBox3dMax</code> and the create
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entry. There is deliberately no update wrapper here; the editor posts the update itself.</li>
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<li><code>wwwroot-src/src/i18n/en/geom.ts</code> — the <code>box.*</code> and <code>bounds.*</code> strings, and
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<code>wwwroot-src/src/i18n/en/common.ts</code> — the shared Min and Max row captions.</li>
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<li><code>Geom/Box3dController.cs</code> — REST endpoints at <code>/api/Box3d/*</code>: <code>New</code>, <code>NewWithValue</code>, <code>Get</code>,
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<code>Update</code>, <code>IndexMin</code>, <code>IndexMax</code>, <code>IndexDimension</code>, <code>IndexCenter</code>, <code>UpdateByMinDimension</code> and
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<code>UpdateByCenterDimension</code>.</li>
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<li><code>Common/IndexService.cs</code> — the keyed object store every box key resolves against.</li>
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</ul>
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<h2 id="see-also">See Also</h2>
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<ul>
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<li><a href="geom-manage-control.html">Geometry Management Panel</a> — the switchboard that offers this kind and
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hosts this editor</li>
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</ul>
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</article>
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