List the building structure, room areas, rough power balance and cable
sizing in the README and documentation map, add an architecture section
for the rough power balance, correct stale snapshot schema references and
record the integrated contributor features in the backlog.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Further Revit exchange will use the CSV export/import of the Linear
plugin instead of Dynamo, as preferred by the internal Revit/CAD
steering committee. Mark the Revit documentation as deferred and remove
the Dynamo diagnostic scripts, which stay reachable through the tag
archive/dynamo-vorueberlegungen.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Keep the earlier Dynamo/API considerations as historical reference only.
Further Revit exchange will use CSV via the Linear plugin.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
In LPH 2/3 there are no circuits yet, but the office needs a power
balance by DIN 276 cost group, as in the Excel template "Leistungsbilanz -
KG400": each trade enters consumers by piece or by area (W/m²) with GLF
and cos phi; the balance sums AV and SV per cost group, adds a reserve and
derives the maximum current.
The module is separate from the circuit structure: own tables
(migration 0010), own folder src/estimate-balance and an import-free
shared calculation used by API and UI. Writes go through project commands
(estimate-balance.insert/.update/.delete with complete documents), so
revision checks and Undo/Redo apply; it is not part of project snapshots
or transfer yet. A comparison endpoint sums the device rows of all circuit
lists by cost group (longest prefix) against the estimate.
The UI adds a sidebar entry, a list of Stände (template KG 400, empty or
copy) and a spreadsheet-like editor with autosave, AMEV picker for the
GLF, totals, reserve, maximum current, comparison table and print layout.
The tests reproduce the template example exactly (143.24 kW, 148.48 kVA,
157.56 kW / 163.33 kVA with 10 % reserve, 235.75 A). See
docs/estimate-balance.md and issue #7.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Projects with several buildings could not be structured: floors and rooms
hung directly off the project. Floors can now belong to a building
(migration 0009: table buildings, nullable floors.building_id). Rooms and
distribution boards keep their floor; their building follows from it.
Existing floors stay without a building.
Buildings use the location-structure command store with
project-building.insert/.update/.delete, inverses and persistent Undo/Redo;
deleting a building with assigned floors is rejected. Floor commands carry
buildingId since command version 2. Version 1 floor commands from existing
history predate buildings and are upgraded with buildingId = null before
they are executed and persisted, so forward and inverse keep one version.
Project snapshot schema 7 stores buildings and floor.buildingId; versions
1-6 are upgraded without buildings. Restore and portable transfer include
buildings, and the transfer remaps building ids.
Buildings, floors and rooms move from the project overview to their own
page /projects/:id/struktur with three columns (Gebäude -> Etagen -> Räume)
that filter each other, and a sidebar entry. Floor selects in the board and
room dialogs are grouped by building. Unchanged dialogs close without a
command. Details in docs/building-structure.md; see issue #6.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Per-circuit cross-section recommendation as a separate module attached to
the circuit list. It never writes project data itself: "Übernehmen" applies
cable type, cross-section and length through the regular circuit.update
command, so revisions and Undo/Redo stay intact.
- Pure domain module (src/cable-sizing) with IEC 60364-5-52:2009 Annex B
tables for PVC and XLPE, copper and aluminium, methods A1, A2, B1, B2, C,
D1, D2 and E. Every value was cross-checked against public reproductions;
where sources differ the lower value is used (docs/cable-sizing-module.md).
- Temperature and grouping between table values round to the safer value;
values outside the tables return no result instead of a factor of 1.
Ground methods use B.52.18 (D2) and B.52.19 A (D1).
- Overload protection: circuit-breakers In <= Iz; gG fuses additionally
I2 <= 1.45 Iz with I2 = 1.6/1.9/2.1 In.
- Inputs prefilled from the circuit: power, phase (group or device rows),
project voltage, power-weighted cos phi, length and protective device.
- Opened from a "Leitungsberechnung" button in the row actions, not from a
grid cell, so cable cells keep the spreadsheet behavior.
- Stateless API under /api/cable-sizing; no database table or migration.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Seitenansicht (/projects/:projectId/print): tabular cover page, board
overview with supply structure and power sums, one plan per board with a
repeating title block; PDF via the browser print dialog with named @page
rules (A4 portrait cover, A4/A3 landscape plans, page x of y).
- Distribution-board info card (board number, location, fed-from, remark)
in the board edit dialog, persisted through the additively extended
distribution-board.update command (migration 0008, snapshot schema 6,
legacy subtree commands normalized).
- Global document logo upload (PNG/JPEG/SVG, max 2 MB) outside project
revisions and snapshots.
- fed-from stays free text; the overview hierarchy and cumulated sums are
preliminary until the feed link is modeled.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
