Celling 03. Flattening and offset

Subject

Importing initial shape (railing lines) for celling, checking of consistency

Node Tree

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  1. Import geometry:

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  1. ObjectGet from scene - Small area’ boundary with incet faces at 0.003 m value;

    1.1. Crop mesh (3) with that boundary;

  2. ObjectGet from scene - Large area’ boundary with incet faces at 0.003 m value;

    2.1. Crop mesh (3) with that boundary;

  3. Getting Rhomb Pattern manually created;

  4. Attempt to create pattern parametrically, it fails only because simplicity of initial pattern to be manual;

  5. Separately boundary for between-columns spaces;

  6. Lines to manually determinecorner bended plates. It is diagonal for rhomb;

  1. Making surface:

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  1. ObjectGet from scene - lower and ipper line for surface construction$

  2. Making surface. In some cases needed natural paramereisation.

That step convenient to be in math surface, but far there we will go mostly mesh.

  1. Projecting pattern to surface:

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  1. Raycast on surface main area;

  2. Raycast on surface space between columns;

  3. Most intriguing part - MANUAL angustment. Look for third part point 4. Dissolve;

  4. Joining all geometry to one;

  5. Convenient to make such reroute points (NodesMenu->layout->Reroute);

  6. Additionallychecking all vertical dimentions to match initial line. We are using manually created lines in scene to adjust that Z-values. Maybe in some cases this checkout should be after flattening stage.

  1. Separating bended corner plates:

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  1. Raycast pattern on surface corner area (edges);

  2. Section matrices to separate left and right plate sides;

  3. Select corner faces (not edges);

  4. Bisect and separate left and right sides;

  5. Join mesh;

  6. Drop and flatten left and right sides separately;

  1. Flattening every plate:

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  1. Analytic outputs. There is row of analysis component node. There are area, perimeters, Nsides, IsBondary, Centers, Angles. All that going to 7 step, tipisation;

  2. Visual checking for cutting parts. There is color highlighting for ngons;

  3. Explode (boom node) polygons, dropping them on floor with inverted coplanar matrix for each plane, scale Z to zero (flattening itself);

  4. Insetting gap between plates. So it appears line, compensating diferent deviations concerning flattening;

  5. Also adding borders with extrude outer edges;

  6. collecting rerotes for data on that step.

  1. Sew corner splitted plates:

Demonstrating from one side:

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  1. Every plate merged by distance to be sure it consistent and sorted to manipulate after bisect disorder;

  2. Mask formula. For every edge find out thouse of edges, are vertically oriented. That edges are bend edges, that needed to be joined when sewing left and right;

  3. Loop for every plate. Input to that loop original “triangle” and inseted (gap between plates);

  1. Tipisation of plates:

  2. Drop plates to layout:

  3. Testing and gathering:

  4. Output: