Changelog

What’s New (v0.0.2)

• Description placement: Moved the full add-on description from “Version History” into the main Description field (per Extensions review guidance).
• Packaging: Removed unused images/assets from the bundle; set up manifest.yaml excludes and documented CLI build usage.
• API cleanup: Replaced bpy.ops.object.modifier_move_up with the lower-level obj.modifiers.move() and reduced other bpy.ops usage where practical to minimize context dependence.
• Tag fix: Removed the “3D View” tag (not applicable for Extensions tagging).
• Export orientation: Exports now use a saved Frame2D for consistent, view-aligned 2D; added Flip X / Flip Y toggles to resolve mirrored drawings.
• Occlusion improvements: More robust hidden-line removal for projections/elevations using BVH tests, configurable Visibility Samples and HLR Epsilon.
• Collections hygiene: Results are exclusively linked to their iteration collections to avoid stray duplicates.
• Stability & UX: Safer bounds/size clamping, clearer UI labels, and better fallbacks when scenes have no outline candidates.

Note: Internally some generated data may use SBX_ / SBP_ prefixes for compatibility; this does not affect usage.

Changelog

Features

Section Box

• One-click box that fits the current selection (evaluated bounds; modifiers included).
• Anchors per axis (Center / − / +) to pin faces while resizing.
• Live Width / Depth / Height, Move, and Rotate (no apply step).
• Face outputs:
  • _cut — exact intersection, clipped to the face rectangle.
  • _projection — orthographic edges inside the box slab with hidden-line removal.
• Filled cut faces (for closed loops).
• Each run is versioned and organised in nested collections.

Planar Sections

• Create cutting planes in XY / XZ / YZ.
• Set Direction (+N/−N) and Depth to define the elevation slab.
• Live plane sizing (Size U/V) with anchors (Center / −U / +U / −V / +V).
• Stores a frozen plane copy per run.
• Elevation lines are occlusion-aware within the slab.

Export

• SVG: thin strokes (0.25) + filled polygons for closed cuts.
• DXF: LINE entities at Z=0 (pure 2D).
• Orientation comes from a saved Frame2D so exports are view-aligned.
• Flip X / Flip Y toggles to match your drawing convention.

Note: Internally, generated data may use SBX_ / SBP_ prefixes for compatibility. This does not affect usage.

Quick Start

Box Workflow

1. Select the meshes to section → Create Box (fits selection).
2. Adjust Width/Depth/Height with anchors; Move/Rotate live.
3. Pick a face (±X / ±Y / ±Z) → Generate Box Section.
4. Export → Export SVG (last Box run) or Export DXF (last Box run).

If the 2D looks mirrored/flipped, toggle Flip X / Flip Y.

Planar Workflow

1. Choose Plane (XY/XZ/YZ), Direction (+N/−N), and Depth.
2. Create Plane → resize live (Size U/V + anchors).
3. Bind selection (or rely on current selection) → Generate Planar Section.
4. Export → Export SVG/DXF (last Plane run).