A conceptual high-rise tower with a central core and rotating floor slabs, demonstrating dynamic form through vertical repetition and transformation

// Spinning Highrise Tower
// A conceptual high-rise tower with a central core and rotating floor slabs, demonstrating dynamic form through vertical repetition and transformation
// Categories: Architecture & Construction; Art & Design; Parametric

// Declare units and version
@settings(defaultLengthUnit = m, kclVersion = 2.0)

// Define global parameters for floor geometry and building layout
floorCount = 17_
floorHeight = 5m
slabWidth = 30m
slabThickness = 0.5m
rotationAngleStep = 5deg
handrailHeight = 1.2m
handrailThickness = 0.3m
balconyDepth = 3m
baseThickness = 0.2m
groundDepth = 5m
groundSize = 50m
coreLength = 10m
coreWidth = 8m

// Calculate facade and core geometry from parameters
facadeWidth = slabWidth - (balconyDepth * 2)
facadeHeight = floorHeight - slabThickness
coreHeight = floorCount * floorHeight - slabThickness
innerSlabWidth = slabWidth - (handrailThickness * 2)

baseSketch = sketch(on = XY) {
  edge1 = line(start = [var -1m, var -1m], end = [var 1m, var -1m])
  edge2 = line(start = [var 1m, var -1m], end = [var 1m, var 1m])
  edge3 = line(start = [var 1m, var 1m], end = [var -1m, var 1m])
  edge4 = line(start = [var -1m, var 1m], end = [var -1m, var -1m])

  coincident([edge1.end, edge2.start])
  coincident([edge2.end, edge3.start])
  coincident([edge3.end, edge4.start])
  coincident([edge4.end, edge1.start])

  horizontal(edge1)
  vertical(edge2)
  horizontal(edge3)
  vertical(edge4)

  distance([edge1.start, edge1.end]) == slabWidth
  distance([edge2.start, edge2.end]) == slabWidth
  horizontalDistance([ORIGIN, edge1.start]) == -slabWidth / 2
  verticalDistance([ORIGIN, edge1.start]) == -slabWidth / 2
}
baseRegion = region(segments = [baseSketch.edge1, baseSketch.edge2])
baseSlab = extrude(baseRegion, length = -baseThickness)
  |> appearance(color = "#dbd7d2")
hiddenBaseSketch = hide(baseSketch)

groundSketch = sketch(on = offsetPlane(XY, offset = -baseThickness)) {
  edge1 = line(start = [var -1m, var -1m], end = [var 1m, var -1m])
  edge2 = line(start = [var 1m, var -1m], end = [var 1m, var 1m])
  edge3 = line(start = [var 1m, var 1m], end = [var -1m, var 1m])
  edge4 = line(start = [var -1m, var 1m], end = [var -1m, var -1m])

  coincident([edge1.end, edge2.start])
  coincident([edge2.end, edge3.start])
  coincident([edge3.end, edge4.start])
  coincident([edge4.end, edge1.start])

  horizontal(edge1)
  vertical(edge2)
  horizontal(edge3)
  vertical(edge4)

  distance([edge1.start, edge1.end]) == groundSize
  distance([edge2.start, edge2.end]) == groundSize
  horizontalDistance([ORIGIN, edge1.start]) == -groundSize / 2
  verticalDistance([ORIGIN, edge1.start]) == -groundSize / 2
}
groundRegion = region(segments = [groundSketch.edge1, groundSketch.edge2])
groundBody = extrude(groundRegion, length = -groundDepth)
  |> appearance(color = "#3a3631")
hiddenGroundSketch = hide(groundSketch)

coreSketch = sketch(on = XY) {
  edge1 = line(start = [var -1m, var -1m], end = [var 1m, var -1m])
  edge2 = line(start = [var 1m, var -1m], end = [var 1m, var 1m])
  edge3 = line(start = [var 1m, var 1m], end = [var -1m, var 1m])
  edge4 = line(start = [var -1m, var 1m], end = [var -1m, var -1m])

  coincident([edge1.end, edge2.start])
  coincident([edge2.end, edge3.start])
  coincident([edge3.end, edge4.start])
  coincident([edge4.end, edge1.start])

  horizontal(edge1)
  vertical(edge2)
  horizontal(edge3)
  vertical(edge4)

  distance([edge1.start, edge1.end]) == coreLength
  distance([edge2.start, edge2.end]) == coreWidth
  horizontalDistance([ORIGIN, edge1.start]) == -coreLength / 2
  verticalDistance([ORIGIN, edge1.start]) == -coreWidth / 2
}
coreRegion = region(segments = [coreSketch.edge1, coreSketch.edge2])
coreBody = extrude(coreRegion, length = coreHeight)
  |> appearance(color = "#7c8186")
hiddenCoreSketch = hide(coreSketch)

floorBlankSketch = sketch(on = offsetPlane(XY, offset = floorHeight - slabThickness)) {
  edge1 = line(start = [var -1m, var -1m], end = [var 1m, var -1m])
  edge2 = line(start = [var 1m, var -1m], end = [var 1m, var 1m])
  edge3 = line(start = [var 1m, var 1m], end = [var -1m, var 1m])
  edge4 = line(start = [var -1m, var 1m], end = [var -1m, var -1m])

  coincident([edge1.end, edge2.start])
  coincident([edge2.end, edge3.start])
  coincident([edge3.end, edge4.start])
  coincident([edge4.end, edge1.start])

  horizontal(edge1)
  vertical(edge2)
  horizontal(edge3)
  vertical(edge4)

  distance([edge1.start, edge1.end]) == slabWidth
  distance([edge2.start, edge2.end]) == slabWidth
  horizontalDistance([ORIGIN, edge1.start]) == -slabWidth / 2
  verticalDistance([ORIGIN, edge1.start]) == -slabWidth / 2
}
floorBlankRegion = region(segments = [
  floorBlankSketch.edge1,
  floorBlankSketch.edge2
])
floorBlank = extrude(floorBlankRegion, length = slabThickness + handrailHeight)
hiddenFloorBlankSketch = hide(floorBlankSketch)

floorVoidSketch = sketch(on = faceOf(floorBlank, face = END)) {
  edge1 = line(start = [var -1m, var -1m], end = [var 1m, var -1m])
  edge2 = line(start = [var 1m, var -1m], end = [var 1m, var 1m])
  edge3 = line(start = [var 1m, var 1m], end = [var -1m, var 1m])
  edge4 = line(start = [var -1m, var 1m], end = [var -1m, var -1m])

  coincident([edge1.end, edge2.start])
  coincident([edge2.end, edge3.start])
  coincident([edge3.end, edge4.start])
  coincident([edge4.end, edge1.start])

  horizontal(edge1)
  vertical(edge2)
  horizontal(edge3)
  vertical(edge4)

  distance([edge1.start, edge1.end]) == innerSlabWidth
  distance([edge2.start, edge2.end]) == innerSlabWidth
  horizontalDistance([ORIGIN, edge1.start]) == -innerSlabWidth / 2
  verticalDistance([ORIGIN, edge1.start]) == -innerSlabWidth / 2
}
floorVoidRegion = region(segments = [
  floorVoidSketch.edge1,
  floorVoidSketch.edge2
])
floorUnitTemplate = extrude(floorVoidRegion, length = -handrailHeight)
  |> appearance(color = "#dbd7d2")
hiddenFloorVoidSketch = hide(floorVoidSketch)

facadeSketch = sketch(on = XY) {
  edge1 = line(start = [var -1m, var -1m], end = [var 1m, var -1m])
  edge2 = line(start = [var 1m, var -1m], end = [var 1m, var 1m])
  edge3 = line(start = [var 1m, var 1m], end = [var -1m, var 1m])
  edge4 = line(start = [var -1m, var 1m], end = [var -1m, var -1m])

  coincident([edge1.end, edge2.start])
  coincident([edge2.end, edge3.start])
  coincident([edge3.end, edge4.start])
  coincident([edge4.end, edge1.start])

  horizontal(edge1)
  vertical(edge2)
  horizontal(edge3)
  vertical(edge4)

  distance([edge1.start, edge1.end]) == facadeWidth
  distance([edge2.start, edge2.end]) == facadeWidth
  horizontalDistance([ORIGIN, edge1.start]) == -facadeWidth / 2
  verticalDistance([ORIGIN, edge1.start]) == -facadeWidth / 2
}
facadeRegion = region(segments = [facadeSketch.edge1, facadeSketch.edge2])
facadeUnitTemplate = extrude(facadeRegion, length = facadeHeight)
  |> appearance(color = "#151819")
hiddenFacadeSketch = hide(facadeSketch)

floorUnits = patternTransform(
  floorUnitTemplate,
  instances = floorCount,
  transform = fn(@i) {
    return {
      rotation = {
        angle = i * rotationAngleStep,
        origin = "local"
      },
      translate = [0m, 0m, i * floorHeight]
    }
  },
)

facadeUnits = patternTransform(
  facadeUnitTemplate,
  instances = floorCount,
  transform = fn(@i) {
    return {
      rotation = {
        angle = i * rotationAngleStep,
        origin = "local"
      },
      translate = [0m, 0m, i * floorHeight]
    }
  },
)


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