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feat: named case-result load combinations with full GUI support

Browse source 
Snapshots the current development tree, headlined by proper load
combinations (user request): a reusable LoadCombination entity of
weighted completed static-case results (e.g. 1.2xDead + 1.6xLive).

- core: LoadCombination/LoadCombinationItem entities, Project
  integration (lookup, unique ids, reference validation)
- services: combinations.py (linear superposition + envelope),
  exported via services __init__
- commands: undoable Add/Delete/Update for combinations
- GUI: Load Combinations manager dialog, Run-dialog evaluation,
  envelope display in Results panel, Combinations tab in Table dock
- tests: unit coverage (validation, math, error paths) + integration
  superposition check vs a single factored run
This commit is contained in:
smill 2026-09-11 13:19:59 -04:00
commit f361fee969
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examples/cantilever.osmodel Normal file
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{
"schema_version": 1,
"meta": {
"name": "Cantilever",
"description": "",
"author": "Ozan",
"units": "SI (m, N, kg, s, Pa)"
},
"ndm": 3,
"ndf": 6,
"coord_systems": [
{
"name": "Global",
"coord": {
"origin": [
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],
"rotation_deg": [
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},
"grid": {
"x_grid_lines": [],
"y_grid_lines": [],
"z_grid_lines": [],
"visible": true,
"is_general": false,
"hide_all": false,
"glue_to_grid": false,
"bubble_size": 20
}
}
],
"nodes": [
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},
{
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{
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{
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},
{
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"name": "N6",
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]
}
],
"materials": [],
"sections": [
{
"id": 1,
"name": "W12x40",
"type": "ElasticSection",
"E": 200000000000.0,
"A": 0.0076,
"Iz": 0.0002,
"Iy": 4.5e-05,
"G": 80000000000.0,
"J": 8.5e-07
}
],
"elements": [
{
"id": 1,
"name": "E1",
"type": "ElasticBeamColumn",
"nodes": [
1,
2
],
"section_id": 1,
"geom_transf": "Linear",
"rho": 0.0
},
{
"id": 2,
"name": "E2",
"type": "ElasticBeamColumn",
"nodes": [
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"geom_transf": "Linear",
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{
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{
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{
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],
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],
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}
],
"element_loads": []
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{
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"time_series_id": 1,
"nodal_loads": [],
"element_loads": [
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{
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{
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},
{
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"wx": 0.0
}
]
}
],
"spectra": [],
"analyses": [
{
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"name": "Tip-Load",
"type": "Static",
"pattern_ids": [
1
],
"n_steps": 1,
"load_factor_increment": 1.0,
"system": "BandGeneral",
"constraints": "Plain",
"integrator": "LoadControl",
"algorithm": "Linear",
"test": "NormDispIncr",
"tolerance": 1e-08,
"max_iter": 25
},
{
"id": 2,
"name": "Uniform-Load",
"type": "Static",
"pattern_ids": [
2
],
"n_steps": 1,
"load_factor_increment": 1.0,
"system": "BandGeneral",
"constraints": "Plain",
"integrator": "LoadControl",
"algorithm": "Linear",
"test": "NormDispIncr",
"tolerance": 1e-08,
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},
{
"id": 3,
"name": "Modal-3",
"type": "Modal",
"n_modes": 3,
"solver": "genBandArpack"
}
]
}