Sources

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

Bibliography

• wiryoprawiro-1986 · reference

  Wiryoprawiro, Z. M., Arsitektur Tradisional Madura Sumenep dengan Pendekatan Historis dan Deskriptif (Laboratorium Arsitektur Tradisional, FTSP ITS, Surabaya, 1986).

• tulistyantoro-2005 · reference

  Tulistyantoro, L., “Makna Ruang pada Tanean Lanjang di Madura”, Dimensi Interior 3(2), 2005.

• depdikbud-1986 · reference

  Arsitektur Tradisional Daerah Jawa Timur (Departemen Pendidikan dan Kebudayaan, Jakarta, 1986).

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. 1yardWidth46.36 marea of the yard
2. 2housePitch42.18 marea of the yard
3. 3yardMargin4.18 marea of the yard
4. 4tonghuhWidth1.36 mhow much wider the tonghuh is
5. 5houseWidth1.12 mhow much wider the tonghuh is
6. 6langgarSetback0.52 msetback of the langgar
7. 7wallHeight0.47 mheight of a house ridge
8. 8langgarSide0.44 msetback of the langgar

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

  21 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

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

• pass
  Mesh integrity: indices, triangles, normals

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

• pass
  The yard is empty, and the yard is the room

  232 m² of beaten earth with nothing on it. It is not space left between buildings: the buildings are arranged around it, and nearly everything a household does is done on it.

• pass
  Seniority runs from the west, and no daughter’s house outgrows the tonghuh

  3 houses, a 6.80 m tonghuh at the west end and 5.60 m daughters’ houses following eastward in order of birth. The positions cannot go wrong by themselves; the sizes can, because those two frontages are independent numbers.

• pass
  The langgar closes the west end, and nothing stands west of it

  The langgar stands 2.6 m west of the tonghuh, because prayer is toward the west. It is the second rule in this project to come from outside the archipelago; the first is the rumoh Aceh, and there what is turned is a whole house plan.

• pass
  The row is regular, and it lengthens only at the east end

  The pitch stays 7.40 m, and adding a household moves none of the houses already standing: what grows is the yard at the east end. No symmetry is claimed along the tanean, because a row grown from one end is not symmetric — the second time in this project, after the betang.

• pass
  Every part declares the dimensions it came from

  74 parts, every one tagged. By least-sourced input: 0 measured, 0 canon, 74 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.

Every daughter builds the same house, so widening it widens all of them at once — and not one part of the arrangement becomes wrong: the langgar still closes the west end, the yard is still clear, the row still runs in birth order, the pitch still holds. What happens is that the daughters’ houses grow past the tonghuh, and the row then says something it must not. It is the second refutation in this project that ends with a perfectly sound building, after the Balinese bale: nothing would fall down, the arrangement would simply be wrong about the family living in 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.