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History-free snapshot of the private development repository at 77a82eb. Code, docs and the public catalogue only: no plant or job knowledge layers, no client, job or producer names (tools/scrub.py clean against the widened term list; a second word-level grep clean). The intro deck is left out because its slide images cannot be checked for job drawings.
88 lines
2.9 KiB
Python
88 lines
2.9 KiB
Python
# -*- coding: utf-8 -*-
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"""Concrete of the cast piece that is not the panel rectangle.
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A slab-seat ledge is modelled as its own family inside the assembly. It is
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real concrete -- on WP371 it carried 8.99 ft3 = 1,349 lb, 7.5% of the piece
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-- and leaving it out made the weight reconciliation accuse a correct model.
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The lump rides at no station, so it is added to the geometric weight whole;
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the statics rescale to the stated weight regardless, and this is what makes
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that reconciliation honest.
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"""
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import pytest
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from panellift import cli, section
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from conftest import make_panel
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LEDGE_FT3 = 8.992 # what WP371's LEDGE family actually measured
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LEDGE_LB = LEDGE_FT3 * 150.0
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def test_extra_cast_is_added_to_the_geometric_weight():
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"""The ledge is weight whether or not it sits at a station."""
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bare = make_panel()
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ledged = make_panel()
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ledged.extra_cast_ft3 = LEDGE_FT3
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expected = section.geometric_weight_lb(bare) + LEDGE_LB
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assert section.geometric_weight_lb(ledged) == pytest.approx(expected)
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def test_reconciliation_clears_when_the_ledge_is_counted():
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"""A panel whose stated weight includes the ledge must not be accused."""
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panel = make_panel()
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panel.extra_cast_ft3 = LEDGE_FT3
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panel.weight_lb = section.geometric_weight_lb(panel)
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_geom, _stated, error = section.weight_reconciliation(panel)
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assert abs(error) < 0.001
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def test_reconciliation_still_catches_a_missing_ledge():
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"""Without the field, the old wrong answer is still visible.
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The ledge here is sized as a share of THIS panel -- on the smaller
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WP371 it was 7.5% of the piece, and check_weight warns past 5%.
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"""
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panel = make_panel()
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ledge_ft3 = 0.075 * (panel.length_ft * panel.width_ft *
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panel.thickness_ft)
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panel.weight_lb = (section.geometric_weight_lb(panel)
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+ ledge_ft3 * panel.unit_weight_pcf)
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_geom, _stated, error = section.weight_reconciliation(panel)
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assert error < -0.05 # we are light by more than 5%
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def test_cli_reads_extra_cast_ft3():
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"""The job file carries the ledge, and the reader keeps it."""
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import json
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panel = make_panel()
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panel.extra_cast_ft3 = LEDGE_FT3
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data = json.loads(json.dumps({
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'mark': panel.mark,
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'length_ft': panel.length_ft,
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'width_ft': panel.width_ft,
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'thickness_in': panel.thickness_in,
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'unit_weight_pcf': panel.unit_weight_pcf,
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'extra_cast_ft3': LEDGE_FT3,
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}))
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assert cli.read_panel(data).extra_cast_ft3 == pytest.approx(LEDGE_FT3)
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def test_cli_treats_a_missing_field_as_no_ledge():
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"""Old job files without the key keep working, as zero."""
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import json
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data = json.loads(json.dumps({
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'mark': 'OLD-1',
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'length_ft': 32.0,
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'width_ft': 10.0,
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'thickness_in': 8.75,
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}))
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assert cli.read_panel(data).extra_cast_ft3 == 0.0
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