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Dion Moult
07913e2832
Drag LMB in empty space to select every visible object whose pick-pixel
falls inside the rect. Mirrors GL ViewportWindow's marquee.
UI flow
- LMB press in non-tool-consuming context arms the marquee. The
cursor must move past kBoxSelectThresholdPx (5 logical) for it to
become active — until then a release falls through to single-pick,
so an unintentional micro-drag still picks under the cursor.
- Press-time modifiers decide the set op so a mid-drag Shift release
doesn't flip behaviour:
plain → selection.clear() then add every picked id
Shift → add to current selection
Ctrl → remove from current selection
- Section tool intercepts plain LMB first (already wired); the
marquee is mutually exclusive with it.
Rectangle pick
picksInRect(x, y, w, h):
- Render the existing pick pass (R32UInt object_id + RGBA16F normal
MRT) into the persistent pick attachments.
- copyTextureToBuffer the rect region of pick_color_texture_ into
box_pick_staging_buffer_ (regrown 2× on demand to fit the
largest rect we've seen). R32UInt is a color format so partial
sub-rect copies are allowed (unlike Depth32Float).
- Iterate the mapped staging buffer, accumulate unique non-zero ids
into an unordered_set, return.
Visual rect
A new marquee overlay pipeline draws the drag rect on the resolved
surface after the corner gizmo. Two passes per active frame share one
uniform buffer / bind group:
fill — 6-vert unit quad, vs_fill maps (0,1)² to NDC via
rect_min/rect_max, fs_fill outputs color × fill_alpha
outline — 24-vert thick-line quad (4 segs × 6 verts), uses the
shared thick_line_clip + fs_main from THICK_LINE_HELPERS_WGSL
so the rect outline has analytical AA without MSAA
Colour: Bonsai decorator_color_special (0.157, 0.565, 1.000) for the
axis-blue parity the user requested; outline alpha 0.95, fill alpha
0.20 of that so geometry behind the rect still reads.
Closes #41 and #61.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
IfcOpenShell
IfcOpenShell is an open source (LGPL) software library for working with Industry Foundation Classes (IFC). Complete parsing support is provided for IFC2x3 TC1, IFC4 Add2 TC1, IFC4x1, IFC4x2, and IFC4x3 Add2. Extensive geometric support is implemented for the IFC releases IFC2x3 TC1 and IFC4 Add2 TC1. Extending with support for arbitrary IFC schemas is possible at compile-time when using C++ and at run-time when using Python.
In addition to a C++ and Python API, IfcOpenShell comes with an ecosystem of tools, notably including IfcConvert (an application to convert IFC models to other formats), Bonsai (an add-on to Blender providing a graphical IFC authoring platform), and many other libraries, CLI apps, and more. Support is also provided for auxiliary standards such as BCF and IDS.
For more information, see:
Development is sponsored through your generous donations!
Contents
| Name | Description | License | Service |
|---|---|---|---|
| bcf | Library to read and write BCF-XML and query OpenCDE BCF-API modules | LGPL-3.0-or-later |   |
| bonsai | Add-on to Blender providing a graphical native IFC authoring platform | GPL-3.0-or-later |    |
| bsdd | Library to query the bSDD API | LGPL-3.0-or-later |  |
| ifc2ca | Utility to convert IFC structural analysis models to Code_Aster | LGPL-3.0-or-later | |
| ifc4d | Convert to and from IFC and project management software | LGPL-3.0-or-later |  |
| ifc5d | Report and optimise cost information from IFC | LGPL-3.0-or-later |  |
| ifcbimtester | Wrapper for Gherkin based unit testing for IFC models | LGPL-3.0-or-later | |
| ifcblender | Historic Blender IFC import add-on | LGPL-3.0-or-later* | |
| ifccityjson | Convert CityJSON to IFC | LGPL-3.0-or-later |  |
| ifcclash | Clash detection library and CLI app | LGPL-3.0-or-later |  |
| ifcconvert | CLI app to convert IFC to many other formats | LGPL-3.0-or-later* |   |
| ifccsv | Library and CLI app to export and import schedules from IFC | LGPL-3.0-or-later |  |
| ifcdiff | Compare changes between IFC models | LGPL-3.0-or-later |  |
| ifcedit | CLI wrapper for ifcopenshell.api IFC model mutation functions | LGPL-3.0-or-later |  |
| ifcfm | Extract IFC data for FM handover requirements | LGPL-3.0-or-later |  |
| ifcmax | Historic extension for IFC support in 3DS Max | LGPL-3.0-or-later* | |
| ifcmcp | MCP server for querying and editing IFC building models | LGPL-3.0-or-later |  |
| ifcopenshell-python | Python library for IFC manipulation | LGPL-3.0-or-later* |         |
| ifcpatch | Utility to run pre-packaged scripts to manipulate IFCs | LGPL-3.0-or-later |  |
| ifcquery | CLI tool for querying and inspecting IFC building models | LGPL-3.0-or-later |  |
| ifcsverchok | Blender Add-on for visual node programming with IFC | GPL-3.0-or-later |  |
| ifctester | Library, CLI and webapp for IDS model auditing | LGPL-3.0-or-later |  |
The IfcOpenShell C++ codebase is split into multiple interal libraries:
| Name | Description | License |
|---|---|---|
| ifcgeom | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcgeom_schema_agnostic | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcgeomserver | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcjni | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcparse | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcwrap | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| qtviewer | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| serializers | Internal library for IfcOpenShell | LGPL-3.0-or-later* |