bonsai-impl-qto
Bonsai QTO (Quantity Takeoff) — Implementation Skill
Bonsai v0.8.x | Module:
bonsai.bim.module.qto| NEVER useblenderbim.bim.module.qto
1. Quick Reference
Critical Warnings
- ALWAYS verify objects have mesh geometry before running QTO calculators. Empties, curves, and lights cause failures.
- ALWAYS ensure objects have an IFC class assigned via Bonsai before running QTO. Calculator functions query IFC properties.
- ALWAYS assign
Pset_MaterialCommon.MassDensityBEFORE running weight calculations (get_net_weight,get_gross_weight). - ALWAYS re-run QTO calculations after modifying geometry. Quantities are NOT live-linked to geometry.
- NEVER assume
get_gross_volume()accounts for openings. Gross = original geometry WITHOUT openings. Net = WITH openings subtracted. - NEVER use the legacy
blenderbimmodule path. ALWAYS usebonsai.bim.module.qto.
Decision Tree: Which QTO Approach?
Need quantities for IFC elements?
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