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Sources

Every dimension the house is generated from is below, with its class and its citation. This is the project’s honesty layer, and it is given a room of its own because a smooth 3D render implies a precision the sources do not have.


The dimensions

DimensionValueClassCitation
Width of the sasadu, across.width7.80 mMoves no measurementInterpolatedNo source
Length of one bay, and a bay is a length of bench several people eat at.bayLength2.40 mIf 20% out: 2.40 mInterpolatedNo source
How many people sit at one bay, counting both sides. This is where the length comes from: the hall is as long as the number of people who have to be able to eat together at once.seatsPerBay6Moves no measurementInterpolatedNo source
Height of the floor above the ground.floorHeight0.45 mIf 20% out: 0.09 mInterpolatedNo source
Height of the stone under a post; nothing is buried.padHeight0.24 mIf 20% out: 0.05 mInterpolatedNo source
Depth of the hollow in the stone the post foot sits in, so that the two actually engage.padSocket0.05 mMoves no measurementInterpolatedNo source
Section of a post.postSection0.17 mMoves no measurementInterpolatedNo source
Depth of a floor bearer.bearerDepth0.16 mMoves no measurementInterpolatedNo source
Thickness of a floor plank.deckThickness0.05 mMoves no measurementInterpolatedNo source
Height of the bench around the floor above the floor.benchHeight0.42 mMoves no measurementInterpolatedNo source
Depth of the bench.benchDepth0.50 mMoves no measurementInterpolatedNo source
Height of the eave above the floor. Low on purpose: it is where the head of every opening comes from, and no opening is higher than the eave over it.eaveHeight1.45 mIf 20% out: 0.29 mInterpolatedNo source
Rise of the ridge above the eave.roofRise3.20 mIf 20% out: 0.64 mInterpolatedNo source
Overhang of the sago-leaf roof, which is the only wall this building has.eaveOversail1.30 mMoves no measurementInterpolatedNo source
Thickness of the sago-leaf roofing.roofThickness0.14 mMoves no measurementInterpolatedNo source
Head height of the highest opening: for guests and for people from outside the village. It is the highest of them and it is still lower than a standing adult.headHigh1.42 mIf 20% out: 0.28 mInterpolatedNo source
The step in head height from one opening to the next. It is the unit this building states difference in — not size, not position, not number, but so many centimetres over somebody’s head.headStep0.11 mIf 20% out: 0.04 mInterpolatedNo source
Width of each opening; they are all the same, because what differs is the height.doorWidth0.90 mMoves no measurementInterpolatedNo source
Section of an opening’s jamb.jambSection0.10 mMoves no measurementInterpolatedNo source
Standing height of an adult. Not from a source about Sahu — its own source key so that this shows.standingHeight1.62 mIf 20% out: 0.32 mInterpolatedUkuran tubuh manusia yang ditetapkan penulis, bukan dari sumber tentang Sahu. Kunci yang sama dipakai pak Bali, Waruga, Ngada, Atoni, dan Rimba.
Height of an adult stooping through a low opening. Even the lowest opening has to be above it: the bow is a mark of respect rather than an obstruction.stoopingHeight1.05 mMoves no measurementInterpolatedUkuran tubuh manusia yang ditetapkan penulis, bukan dari sumber tentang Sahu. Kunci yang sama dipakai pak Bali, Waruga, Ngada, Atoni, dan Rimba.
Width of the red and white cloth tied to a post.kainWidth0.34 mMoves no measurementInterpolatedNo source
How far the cloth hangs.kainDrop0.85 mMoves no measurementInterpolatedNo source
Radius of the open ground around the sasadu, in the middle of the village.yardRadius13.00 mMoves no measurementInterpolatedNo source
Depth of the tested joint engagement, as a share of the smaller member.jointEngagement0.30Moves no measurementInterpolatedNo source
Its openings are cut to different heights, and which one a person comes in by follows from who they are. The thirty-two buildings before this state standing through size, position, floor height, count, roof tiers, brackets or a stack of boards. This one states it in the space over somebody’s head, and it is the only pack here that does.doorsAreNotAlike1Moves no measurementCanonYasin, dkk., “Sasadu: Rumah Adat Suku Sahu di Halmahera Barat”, dalam kajian arsitektur tradisional Maluku Utara, 2018.
Even the highest opening is lower than a standing adult: the bow is not something demanded of the low-ranking but what the building asks of everybody who comes in — including of the person the lowest opening was made low for.everybodyBows1Moves no measurementCanonVisser, L. E., My Rice Field is My Child: Social and Territorial Aspects of Swidden Cultivation in Sahu, Eastern Indonesia (Foris, Dordrecht, 1989).
Zero door leaves and zero walls. What this building has is openings of different heights, not doors that can be shut. A hall that distinguishes people by headroom is an entirely different thing from a hall that distinguishes them with a lock.nobodyIsShutOut0Moves no measurementCanonArsitektur Tradisional Daerah Maluku (Departemen Pendidikan dan Kebudayaan, Jakarta, 1985).
Its length is how many people have to be able to sit down and eat together at once. A bade’s lattice also comes from a headcount, and that one counts people carrying; this one counts people sitting.eatenInTogether1Moves no measurementCanonVisser, L. E., My Rice Field is My Child: Social and Territorial Aspects of Swidden Cultivation in Sahu, Eastern Indonesia (Foris, Dordrecht, 1989).

Bibliography

  • visser-1989 · ethnography

    Visser, L. E., My Rice Field is My Child: Social and Territorial Aspects of Swidden Cultivation in Sahu, Eastern Indonesia (Foris, Dordrecht, 1989).

  • depdikbud-1985 · reference

    Arsitektur Tradisional Daerah Maluku (Departemen Pendidikan dan Kebudayaan, Jakarta, 1985).

  • yasin-2018 · reference

    Yasin, dkk., “Sasadu: Rumah Adat Suku Sahu di Halmahera Barat”, dalam kajian arsitektur tradisional Maluku Utara, 2018.

  • anthropometry · none

    Ukuran tubuh manusia yang ditetapkan penulis, bukan dari sumber tentang Sahu. Kunci yang sama dipakai pak Bali, Waruga, Ngada, Atoni, dan Rimba.


Which of these matters most

Nearly every dimension on this page is the author’s own. What the provenance bar does not say is whether that matters. Each row below is computed by rebuilding the house: one dimension is pushed 20%, and the house is measured to see how far it follows. Nothing is estimated — the figures are the difference between two runs of the generator.

  1. 1bayLength2.40 mlength of the hall
  2. 2roofRise0.64 mheight of the ridge
  3. 3standingHeight0.32 mhow far the highest opening makes you stoop
  4. 4eaveHeight0.29 mheight of the ridge
  5. 5headHigh0.28 mthe highest opening
  6. 6floorHeight0.09 mheight of the ridge
  7. 7padHeight0.05 mheight of the ridge
  8. 8headStep0.04 mthe lowest opening

If only one dimension could be surveyed, this is the one. This is sensitivity, not uncertainty: it shows what moves, not how likely the value is to be wrong. The 20% is itself the author’s choice.


Invariants

There is no measured drawing yet, so correctness rests on structural truth. These checks fail the build.

  • pass
    Every tenon contained in its mortise

    13 pasak, takik and tumpu joints; every one engaged.

  • pass
    No joint spans more than one stage

    Every joint engages two parts from the same stage or from consecutive ones.

  • pass
    Stage ordering, and nothing below ground

    45 parts, every one bearing on something already standing or on the ground.

  • pass
    Mesh integrity: indices, triangles, normals

    6 triangles; indices in range, none degenerate, every normal unit length.

  • pass
    The openings differ, and they differ in order

    3 openings, from 1.42 m and stepping down 0.11 m each time, each on its own side. The Maluku baileo checks the exact opposite — there several things of one kind must be the same, and the refusal to distinguish is the statement. Here the distinction is, and it is said in centimetres over somebody’s head.

  • pass
    Everybody bows, including whoever the highest opening was made for

    The highest opening is 1.42 m, still under the 1.62 m of a standing adult; the lowest is still over the 1.05 m of a stooping one. The bow here is not what is demanded of the low-ranking but what the building asks of everybody.

  • pass
    There is no wall and no door leaf

    Zero walls and zero door leaves: the space under the roof is open on all four sides, and what distinguishes people is the height of the opening they come in by. A hall that distinguishes with headroom is an entirely different thing from a hall that distinguishes with a lock.

  • pass
    Its length is the number of people who eat in it

    5 bays × 6 people = 30 sitting down at once, along 12.0 m. A bade’s lattice also comes from a headcount, and that one counts people carrying; this counts people sitting down to eat.

  • pass
    Every part declares the dimensions it came from

    45 parts, every one tagged. By least-sourced input: 0 measured, 0 canon, 45 interpolated.

  • skipped
    Checked against a measured drawing of a real house

    Skipped. No measured drawing has been wired in, so there is nothing to compare against. This check will not be made to pass by weakening it.


What a check is preventing

Ten green rows are not a reason to believe anything. So one check is run against a house built to break it, and what is printed below is that check’s own verdict rather than a description of it.

Raising the guests’ opening is the ordinary courtesy anybody would think of: people arrive carrying dishes for a feast the whole village eats, and a taller opening is easier to get through. No part of the building objects — the hall still holds everybody, the openings still differ in order, there is still no wall and no door leaf. What stops being true is that everybody bows. Past the height of a standing adult the highest opening is one somebody walks through upright, and the gesture that was asked of everyone becomes a gesture asked only of the people whose openings are lower. The building has not got worse; it has started saying something else.

The house as built

pass142 cm / 162 cmthe highest opening · a standing adult

The highest opening is 1.42 m, still under the 1.62 m of a standing adult; the lowest is still over the 1.05 m of a stooping one. The bow here is not what is demanded of the low-ranking but what the building asks of everybody.

Rear prow raised to 1.65 m

fail165 cm / 162 cmthe highest opening · a standing adult

tamu is 1.65 m and a standing adult is 1.62 m: nobody has to bow at it

The second house is never rendered. It is built during the build, failed, and thrown away.


This bar moves as real surveys are wired in. That movement is the project's progress metric.