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Freeform surfaces

Planes, cylinders and spheres cover most parts, but a terrain, a canopy or a car body needs a surface with no simple formula behind it. OCCT stores these as B-spline surfaces, and bitbybit.occt.shapes.face can build one from points or from curves.

A surface through points​

fromPointGrid takes rows of points, every row the same length, and fits one smooth face to them. With interpolate on the surface passes through every point; with it off the surface runs near them, within tolerance.

This terrain starts from a survey of 49 points, kept as JSON. The surface is extruded straight down into a solid, the solid is trimmed to a square by booleans.intersection, and operations.slice cuts the hill into flat outlines every 0.5 in height. A level can hold more than one outline where the ground has separate peaks. Each outline is then extruded by 0.42, which leaves a thin gap between the plates, like the glue lines of a model cut from plywood:

Bitbybit Platform

A terrain cut into layers in Rete

rete logoRete
Script Source (rete)
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Lines across a surface​

A face has its own coordinates, U and V, running across it. wiresAlongParams draws a wire across the face at each value you give it, from 0 at one side to 1 at the other, and isU chooses the direction. Because the wires follow the surface they are a natural frame for it.

Here ten lines run each way across a roof and every one is piped into a beam with operations.pipeWiresCylindrical. The roof stays as a faint pane of glass:

Bitbybit Platform

A timber gridshell over a glass roof in Rete

rete logoRete
Script Source (rete)
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          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "roof",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "glass",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        628
      ]
    },
    "view": {
      "id": "view",
      "name": "bitbybit.babylon.scene.adjustActiveArcRotateCamera",
      "customName": "adjust active arc rotate camera",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "position": [
          24,
          24,
          -34
        ],
        "lookAt": [
          0,
          1,
          0
        ],
        "lowerBetaLimit": 1,
        "upperBetaLimit": 179,
        "angularSensibilityX": 1000,
        "angularSensibilityY": 1000,
        "maxZ": 1000,
        "panningSensibility": 1000,
        "wheelPrecision": 3
      },
      "inputs": {},
      "position": [
        1720,
        922
      ]
    }
  },
  "modules": {}
}

isoCurves gives the same lines as exact edges trimmed to the face, and subdivideToWires spaces a given number of them evenly for you.

Skins over curves​

When you know the boundary of a surface and not its middle, stretch a skin over the curves.

  • boundaryPatch takes two, three or four edges. With three or four, style chooses the character of the skin: coons blends the edges, stretch is flatter and curved rounder.
  • fillPatch fills any closed loop of edges and can pass near points you give it. continuities says for each edge how the patch meets it: position only touches the edge, tangent and curvature also carry on smoothly from a face beside it, given in supports.
  • ruledBetween joins two edges or wires with straight lines from one to the other.

Both skins here span the same four arcs. The one on the right is pulled up through a point at height 7:

Bitbybit Platform

Two patches over the same four curves in Rete

rete logoRete
Script Source (rete)
{
  "id": "rete-v2-json",
  "nodes": {
    "north": {
      "id": "north",
      "name": "bitbybit.occt.shapes.edge.arcThroughThreePoints",
      "customName": "arc through three points",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "start": [
          0,
          0,
          0
        ],
        "middle": [
          5,
          3,
          0
        ],
        "end": [
          10,
          0,
          0
        ]
      },
      "inputs": {},
      "position": [
        40,
        40
      ]
    },
    "east": {
      "id": "east",
      "name": "bitbybit.occt.shapes.edge.arcThroughThreePoints",
      "customName": "arc through three points",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "start": [
          10,
          0,
          0
        ],
        "middle": [
          12,
          2,
          5
        ],
        "end": [
          10,
          0,
          10
        ]
      },
      "inputs": {},
      "position": [
        40,
        334
      ]
    },
    "south": {
      "id": "south",
      "name": "bitbybit.occt.shapes.edge.arcThroughThreePoints",
      "customName": "arc through three points",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "start": [
          10,
          0,
          10
        ],
        "middle": [
          5,
          4,
          10
        ],
        "end": [
          0,
          0,
          10
        ]
      },
      "inputs": {},
      "position": [
        40,
        628
      ]
    },
    "west": {
      "id": "west",
      "name": "bitbybit.occt.shapes.edge.arcThroughThreePoints",
      "customName": "arc through three points",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "start": [
          0,
          0,
          10
        ],
        "middle": [
          -2,
          2,
          5
        ],
        "end": [
          0,
          0,
          0
        ]
      },
      "inputs": {},
      "position": [
        40,
        922
      ]
    },
    "edges": {
      "id": "edges",
      "name": "bitbybit.lists.createList",
      "customName": "create list",
      "async": false,
      "drawable": false,
      "data": {},
      "inputs": {
        "listElements": {
          "connections": [
            {
              "node": "north",
              "output": "result",
              "data": {}
            },
            {
              "node": "east",
              "output": "result",
              "data": {}
            },
            {
              "node": "south",
              "output": "result",
              "data": {}
            },
            {
              "node": "west",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        460,
        40
      ]
    },
    "stretched": {
      "id": "stretched",
      "name": "bitbybit.occt.shapes.face.boundaryPatch",
      "customName": "boundary patch",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "style": "coons"
      },
      "inputs": {
        "edges": {
          "connections": [
            {
              "node": "edges",
              "output": "list",
              "data": {}
            }
          ]
        }
      },
      "position": [
        880,
        40
      ]
    },
    "continuities": {
      "id": "continuities",
      "name": "bitbybit.json.parse",
      "customName": "parse",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "text": "[\"position\", \"position\", \"position\", \"position\"]"
      },
      "inputs": {},
      "position": [
        40,
        1216
      ]
    },
    "peak": {
      "id": "peak",
      "name": "bitbybit.json.parse",
      "customName": "parse",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "text": "[[5, 7, 5]]"
      },
      "inputs": {},
      "position": [
        40,
        1456
      ]
    },
    "pulled": {
      "id": "pulled",
      "name": "bitbybit.occt.shapes.face.fillPatch",
      "customName": "fill patch",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "degree": 3,
        "pointsOnCurves": 15,
        "iterations": 2,
        "tolerance": 0.0001
      },
      "inputs": {
        "edges": {
          "connections": [
            {
              "node": "edges",
              "output": "list",
              "data": {}
            }
          ]
        },
        "continuities": {
          "connections": [
            {
              "node": "continuities",
              "output": "result",
              "data": {}
            }
          ]
        },
        "points": {
          "connections": [
            {
              "node": "peak",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        880,
        288
      ]
    },
    "beside": {
      "id": "beside",
      "name": "bitbybit.occt.transforms.translate",
      "customName": "translate",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "translation": [
          16,
          0,
          0
        ]
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "pulled",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1300,
        40
      ]
    },
    "skin": {
      "id": "skin",
      "name": "bitbybit.draw.optionsOcctShape",
      "customName": "options occt shape",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "faceOpacity": 1,
        "edgeOpacity": 1,
        "edgeColour": "#5f6773",
        "faceColour": "#ffffff",
        "vertexColour": "#ff00ff",
        "edgeWidth": 2,
        "edgeWidthBySize": false,
        "vertexSize": 0.03,
        "drawEdges": true,
        "drawFaces": true,
        "drawVertices": false,
        "precision": 0.01,
        "angularDeflection": 0.5,
        "relativeDeflection": false,
        "precisionShare": 0,
        "drawEdgeIndexes": false,
        "edgeIndexHeight": 0.06,
        "edgeIndexColour": "#ff00ff",
        "drawFaceIndexes": false,
        "faceIndexHeight": 0.06,
        "faceIndexColour": "#0000ff",
        "drawTwoSided": true,
        "backFaceColour": "#ffffff",
        "backFaceOpacity": 1,
        "edgeArrowSize": 0,
        "edgeArrowAngle": 15,
        "keepMeshData": false,
        "allowQualityDecrease": true,
        "forceFaceDeflection": false,
        "drawIsoCurves": false,
        "isoCurvesU": 5,
        "isoCurvesV": 5,
        "isoCurvesColour": "#808080",
        "surfaceAnalysis": "none",
        "draftDirection": [
          0,
          1,
          0
        ]
      },
      "inputs": {},
      "position": [
        40,
        1696
      ]
    },
    "drawStretched": {
      "id": "drawStretched",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "stretched",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "skin",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        40
      ]
    },
    "drawBeside": {
      "id": "drawBeside",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "beside",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "skin",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        334
      ]
    },
    "view": {
      "id": "view",
      "name": "bitbybit.babylon.scene.adjustActiveArcRotateCamera",
      "customName": "adjust active arc rotate camera",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "position": [
          13,
          26,
          -34
        ],
        "lookAt": [
          13,
          1,
          5
        ],
        "lowerBetaLimit": 1,
        "upperBetaLimit": 179,
        "angularSensibilityX": 1000,
        "angularSensibilityY": 1000,
        "maxZ": 1000,
        "panningSensibility": 1000,
        "wheelPrecision": 3
      },
      "inputs": {},
      "position": [
        1720,
        628
      ]
    }
  },
  "modules": {}
}

Patterns over a surface​

The subdivideTo functions spread a grid over a face. subdivideToPoints gives points, subdivideToNormals the directions there, and subdivideToFrames both at once, a frame on the surface at each spot with its normal square to it, which is what placeOnFrames wants. removeStartEdgeU, removeEndEdgeU and their two V partners leave out the rows along the face's edges, where a hole would break through:

Bitbybit Platform

A perforated panel on a curved surface in Rete

rete logoRete
Script Source (rete)
{
  "id": "rete-v2-json",
  "nodes": {
    "grid": {
      "id": "grid",
      "name": "bitbybit.json.parse",
      "customName": "parse",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "text": "[[[-10.0,-0.43,-6],[-10.0,-0.83,-4],[-10.0,-1.1,-2],[-10.0,-1.2,0],[-10.0,-1.1,2],[-10.0,-0.83,4],[-10.0,-0.43,6]],[[-7.5,-0.69,-6],[-7.5,-1.33,-4],[-7.5,-1.76,-2],[-7.5,-1.91,0],[-7.5,-1.76,2],[-7.5,-1.33,4],[-7.5,-0.69,6]],[[-5.0,-0.69,-6],[-5.0,-1.32,-4],[-5.0,-1.75,-2],[-5.0,-1.9,0],[-5.0,-1.75,2],[-5.0,-1.32,4],[-5.0,-0.69,6]],[[-2.5,-0.42,-6],[-2.5,-0.82,-4],[-2.5,-1.08,-2],[-2.5,-1.17,0],[-2.5,-1.08,2],[-2.5,-0.82,4],[-2.5,-0.42,6]],[[0.0,0.0,-6],[0.0,0.0,-4],[0.0,0.0,-2],[0.0,0.0,0],[0.0,0.0,2],[0.0,0.0,4],[0.0,0.0,6]],[[2.5,0.42,-6],[2.5,0.82,-4],[2.5,1.08,-2],[2.5,1.17,0],[2.5,1.08,2],[2.5,0.82,4],[2.5,0.42,6]],[[5.0,0.69,-6],[5.0,1.32,-4],[5.0,1.75,-2],[5.0,1.9,0],[5.0,1.75,2],[5.0,1.32,4],[5.0,0.69,6]],[[7.5,0.69,-6],[7.5,1.33,-4],[7.5,1.76,-2],[7.5,1.91,0],[7.5,1.76,2],[7.5,1.33,4],[7.5,0.69,6]],[[10.0,0.43,-6],[10.0,0.83,-4],[10.0,1.1,-2],[10.0,1.2,0],[10.0,1.1,2],[10.0,0.83,4],[10.0,0.43,6]]]"
      },
      "inputs": {},
      "position": [
        40,
        40
      ]
    },
    "surface": {
      "id": "surface",
      "name": "bitbybit.occt.shapes.face.fromPointGrid",
      "customName": "face from point grid",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "interpolate": true,
        "periodic": false,
        "degreeMin": 3,
        "degreeMax": 8,
        "tolerance": 0.001
      },
      "inputs": {
        "points": {
          "connections": [
            {
              "node": "grid",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        460,
        40
      ]
    },
    "sheet": {
      "id": "sheet",
      "name": "bitbybit.occt.operations.makeThickSolidSimple",
      "customName": "make thick solid simple",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "offset": -0.3
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "surface",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        880,
        40
      ]
    },
    "frames": {
      "id": "frames",
      "name": "bitbybit.occt.shapes.face.subdivideToFrames",
      "customName": "subdivide to frames",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "nrDivisionsU": 9,
        "nrDivisionsV": 7,
        "shiftHalfStepU": false,
        "removeStartEdgeU": true,
        "removeEndEdgeU": true,
        "shiftHalfStepV": false,
        "removeStartEdgeV": true,
        "removeEndEdgeV": true
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "surface",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        880,
        288
      ]
    },
    "cutter": {
      "id": "cutter",
      "name": "bitbybit.occt.shapes.solid.createCylinder",
      "customName": "cylinder",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "radius": 0.6,
        "height": 3,
        "center": [
          0,
          0,
          -1.5
        ],
        "direction": [
          0,
          0,
          1
        ],
        "angle": 360,
        "originOnCenter": false
      },
      "inputs": {},
      "position": [
        40,
        280
      ]
    },
    "cutters": {
      "id": "cutters",
      "name": "bitbybit.occt.transforms.placeOnFrames",
      "customName": "place on frames",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "cutter",
              "output": "result",
              "data": {}
            }
          ]
        },
        "frames": {
          "connections": [
            {
              "node": "frames",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1300,
        40
      ]
    },
    "tools": {
      "id": "tools",
      "name": "bitbybit.lists.createList",
      "customName": "create list",
      "async": false,
      "drawable": false,
      "data": {},
      "inputs": {
        "listElements": {
          "connections": [
            {
              "node": "cutters",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        40
      ]
    },
    "panel": {
      "id": "panel",
      "name": "bitbybit.occt.booleans.difference",
      "customName": "difference",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "keepEdges": false,
        "strategy": "oneAfterAnother"
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "sheet",
              "output": "result",
              "data": {}
            }
          ]
        },
        "shapes": {
          "connections": [
            {
              "node": "tools",
              "output": "list",
              "data": {}
            }
          ]
        }
      },
      "position": [
        2140,
        40
      ]
    },
    "steel": {
      "id": "steel",
      "name": "bitbybit.draw.optionsOcctShape",
      "customName": "options occt shape",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "faceOpacity": 1,
        "edgeOpacity": 1,
        "edgeColour": "#5f6773",
        "faceColour": "#ff0000",
        "vertexColour": "#ff00ff",
        "edgeWidth": 2,
        "edgeWidthBySize": false,
        "vertexSize": 0.03,
        "drawEdges": true,
        "drawFaces": true,
        "drawVertices": false,
        "precision": 0.01,
        "angularDeflection": 0.5,
        "relativeDeflection": false,
        "precisionShare": 0,
        "drawEdgeIndexes": false,
        "edgeIndexHeight": 0.06,
        "edgeIndexColour": "#ff00ff",
        "drawFaceIndexes": false,
        "faceIndexHeight": 0.06,
        "faceIndexColour": "#0000ff",
        "drawTwoSided": false,
        "backFaceColour": "#0000ff",
        "backFaceOpacity": 1,
        "edgeArrowSize": 0,
        "edgeArrowAngle": 15,
        "keepMeshData": false,
        "allowQualityDecrease": true,
        "forceFaceDeflection": false,
        "drawIsoCurves": false,
        "isoCurvesU": 5,
        "isoCurvesV": 5,
        "isoCurvesColour": "#808080",
        "surfaceAnalysis": "none",
        "draftDirection": [
          0,
          1,
          0
        ]
      },
      "inputs": {
        "faceMaterial": {
          "connections": [
            {
              "node": "steelMaterial",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        460,
        472
      ]
    },
    "steelMaterial": {
      "id": "steelMaterial",
      "name": "bitbybit.draw.createPBRMaterial",
      "customName": "create pbr material",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "name": "PBRMaterial",
        "baseColor": "#eef0f2",
        "metallic": 0.7,
        "roughness": 0.3,
        "alpha": 1,
        "emissiveColor": "#000000",
        "emissiveIntensity": 1,
        "zOffset": 0,
        "zOffsetUnits": 0,
        "alphaMode": "opaque",
        "alphaCutoff": 0.5,
        "doubleSided": false,
        "wireframe": false,
        "unlit": false
      },
      "inputs": {},
      "position": [
        40,
        712
      ]
    },
    "drawPanel": {
      "id": "drawPanel",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "panel",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "steel",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        2560,
        40
      ]
    },
    "view": {
      "id": "view",
      "name": "bitbybit.babylon.scene.adjustActiveArcRotateCamera",
      "customName": "adjust active arc rotate camera",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "position": [
          16,
          20,
          -22
        ],
        "lookAt": [
          0,
          0,
          0
        ],
        "lowerBetaLimit": 1,
        "upperBetaLimit": 179,
        "angularSensibilityX": 1000,
        "angularSensibilityY": 1000,
        "maxZ": 1000,
        "panningSensibility": 1000,
        "wheelPrecision": 3
      },
      "inputs": {},
      "position": [
        2560,
        334
      ]
    }
  },
  "modules": {}
}

Flat shapes on a curved face​

Three functions take a flat outline to a curved face, and they differ in what they keep.

  • wrapWiresOnFace rolls it on and keeps every length, so it suits a label, a mark or a pattern on a plane, cylinder or cone. It works from the ground plane, with X around the cylinder and Z along its axis.
  • projectWires casts it along a direction, as the sun casts a shadow, and projectConical from a point, as a lamp does. Both work on any shape, and both stretch the outline where the surface turns away. A ray that misses the shape lands nowhere, so keep the outline inside what the lamp can reach.
Bitbybit Platform

Stars wrapped around a can in Rete

rete logoRete
Script Source (rete)
{
  "id": "rete-v2-json",
  "nodes": {
    "can": {
      "id": "can",
      "name": "bitbybit.occt.shapes.solid.createCylinder",
      "customName": "cylinder",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "radius": 3,
        "height": 8,
        "center": [
          0,
          0,
          0
        ],
        "direction": [
          1,
          0,
          0
        ],
        "angle": 360,
        "originOnCenter": false
      },
      "inputs": {},
      "position": [
        40,
        40
      ]
    },
    "walls": {
      "id": "walls",
      "name": "bitbybit.occt.select.faces.ofType",
      "customName": "faces of type",
      "async": true,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "type": "cylinder"
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "can",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        460,
        40
      ]
    },
    "wallIndex": {
      "id": "wallIndex",
      "name": "bitbybit.lists.getItem",
      "customName": "get item",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "index": 0,
        "clone": true
      },
      "inputs": {
        "list": {
          "connections": [
            {
              "node": "walls",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        880,
        40
      ]
    },
    "wall": {
      "id": "wall",
      "name": "bitbybit.occt.shapes.face.getFace",
      "customName": "get face",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "index": 0
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "can",
              "output": "result",
              "data": {}
            }
          ]
        },
        "index": {
          "connections": [
            {
              "node": "wallIndex",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1300,
        40
      ]
    },
    "star1": {
      "id": "star1",
      "name": "bitbybit.occt.shapes.wire.createStarWire",
      "customName": "star wire",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "center": [
          2.3,
          0,
          4
        ],
        "direction": [
          0,
          1,
          0
        ],
        "numRays": 5,
        "outerRadius": 1.2,
        "innerRadius": 0.5,
        "offsetOuterEdges": 0,
        "half": false
      },
      "inputs": {},
      "position": [
        40,
        472
      ]
    },
    "star2": {
      "id": "star2",
      "name": "bitbybit.occt.shapes.wire.createStarWire",
      "customName": "star wire",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "center": [
          5.44,
          0,
          4
        ],
        "direction": [
          0,
          1,
          0
        ],
        "numRays": 5,
        "outerRadius": 1.2,
        "innerRadius": 0.5,
        "offsetOuterEdges": 0,
        "half": false
      },
      "inputs": {},
      "position": [
        40,
        950
      ]
    },
    "star3": {
      "id": "star3",
      "name": "bitbybit.occt.shapes.wire.createStarWire",
      "customName": "star wire",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "center": [
          8.58,
          0,
          4
        ],
        "direction": [
          0,
          1,
          0
        ],
        "numRays": 5,
        "outerRadius": 1.2,
        "innerRadius": 0.5,
        "offsetOuterEdges": 0,
        "half": false
      },
      "inputs": {},
      "position": [
        40,
        1428
      ]
    },
    "star4": {
      "id": "star4",
      "name": "bitbybit.occt.shapes.wire.createStarWire",
      "customName": "star wire",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "center": [
          11.72,
          0,
          4
        ],
        "direction": [
          0,
          1,
          0
        ],
        "numRays": 5,
        "outerRadius": 1.2,
        "innerRadius": 0.5,
        "offsetOuterEdges": 0,
        "half": false
      },
      "inputs": {},
      "position": [
        40,
        1906
      ]
    },
    "star5": {
      "id": "star5",
      "name": "bitbybit.occt.shapes.wire.createStarWire",
      "customName": "star wire",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "center": [
          14.86,
          0,
          4
        ],
        "direction": [
          0,
          1,
          0
        ],
        "numRays": 5,
        "outerRadius": 1.2,
        "innerRadius": 0.5,
        "offsetOuterEdges": 0,
        "half": false
      },
      "inputs": {},
      "position": [
        40,
        2384
      ]
    },
    "star6": {
      "id": "star6",
      "name": "bitbybit.occt.shapes.wire.createStarWire",
      "customName": "star wire",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "center": [
          18,
          0,
          4
        ],
        "direction": [
          0,
          1,
          0
        ],
        "numRays": 5,
        "outerRadius": 1.2,
        "innerRadius": 0.5,
        "offsetOuterEdges": 0,
        "half": false
      },
      "inputs": {},
      "position": [
        40,
        2862
      ]
    },
    "stars": {
      "id": "stars",
      "name": "bitbybit.lists.createList",
      "customName": "create list",
      "async": false,
      "drawable": false,
      "data": {},
      "inputs": {
        "listElements": {
          "connections": [
            {
              "node": "star1",
              "output": "result",
              "data": {}
            },
            {
              "node": "star2",
              "output": "result",
              "data": {}
            },
            {
              "node": "star3",
              "output": "result",
              "data": {}
            },
            {
              "node": "star4",
              "output": "result",
              "data": {}
            },
            {
              "node": "star5",
              "output": "result",
              "data": {}
            },
            {
              "node": "star6",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        460,
        334
      ]
    },
    "wrapped": {
      "id": "wrapped",
      "name": "bitbybit.occt.shapes.wire.wrapWiresOnFace",
      "customName": "wrap wires on face",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "tolerance": 0.0001
      },
      "inputs": {
        "wires": {
          "connections": [
            {
              "node": "stars",
              "output": "list",
              "data": {}
            }
          ]
        },
        "face": {
          "connections": [
            {
              "node": "wall",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        40
      ]
    },
    "labels": {
      "id": "labels",
      "name": "bitbybit.occt.shapes.face.createFacesFromWiresOnFace",
      "customName": "faces from wires on face",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "inside": true
      },
      "inputs": {
        "wires": {
          "connections": [
            {
              "node": "wrapped",
              "output": "result",
              "data": {}
            }
          ]
        },
        "face": {
          "connections": [
            {
              "node": "wall",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        2140,
        40
      ]
    },
    "drawnCan": {
      "id": "drawnCan",
      "name": "bitbybit.occt.shapes.solid.createCylinder",
      "customName": "cylinder",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "radius": 2.97,
        "height": 8,
        "center": [
          0,
          0,
          0
        ],
        "direction": [
          1,
          0,
          0
        ],
        "angle": 360,
        "originOnCenter": false
      },
      "inputs": {},
      "position": [
        40,
        3340
      ]
    },
    "brass": {
      "id": "brass",
      "name": "bitbybit.draw.optionsOcctShape",
      "customName": "options occt shape",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "faceOpacity": 1,
        "edgeOpacity": 1,
        "edgeColour": "#5f6773",
        "faceColour": "#ff4400",
        "vertexColour": "#ff00ff",
        "edgeWidth": 2,
        "edgeWidthBySize": false,
        "vertexSize": 0.03,
        "drawEdges": true,
        "drawFaces": true,
        "drawVertices": false,
        "precision": 0.01,
        "angularDeflection": 0.5,
        "relativeDeflection": false,
        "precisionShare": 0,
        "drawEdgeIndexes": false,
        "edgeIndexHeight": 0.06,
        "edgeIndexColour": "#ff00ff",
        "drawFaceIndexes": false,
        "faceIndexHeight": 0.06,
        "faceIndexColour": "#0000ff",
        "drawTwoSided": false,
        "backFaceColour": "#0000ff",
        "backFaceOpacity": 1,
        "edgeArrowSize": 0,
        "edgeArrowAngle": 15,
        "keepMeshData": false,
        "allowQualityDecrease": true,
        "forceFaceDeflection": false,
        "drawIsoCurves": false,
        "isoCurvesU": 5,
        "isoCurvesV": 5,
        "isoCurvesColour": "#808080",
        "surfaceAnalysis": "none",
        "draftDirection": [
          0,
          1,
          0
        ]
      },
      "inputs": {},
      "position": [
        40,
        3772
      ]
    },
    "drawDrawnCan": {
      "id": "drawDrawnCan",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "drawnCan",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        2560,
        40
      ]
    },
    "drawLabels": {
      "id": "drawLabels",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "labels",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "brass",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        2560,
        334
      ]
    },
    "view": {
      "id": "view",
      "name": "bitbybit.babylon.scene.adjustActiveArcRotateCamera",
      "customName": "adjust active arc rotate camera",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "position": [
          4,
          17,
          -13
        ],
        "lookAt": [
          4,
          0,
          0
        ],
        "lowerBetaLimit": 1,
        "upperBetaLimit": 179,
        "angularSensibilityX": 1000,
        "angularSensibilityY": 1000,
        "maxZ": 1000,
        "panningSensibility": 1000,
        "wheelPrecision": 3
      },
      "inputs": {},
      "position": [
        2560,
        628
      ]
    }
  },
  "modules": {}
}
Bitbybit Platform

A star cast onto a ball two ways in Rete

rete logoRete
Script Source (rete)
{
  "id": "rete-v2-json",
  "nodes": {
    "ball": {
      "id": "ball",
      "name": "bitbybit.occt.shapes.solid.createSphere",
      "customName": "sphere",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "radius": 6,
        "center": [
          0,
          0,
          0
        ]
      },
      "inputs": {},
      "position": [
        40,
        40
      ]
    },
    "star": {
      "id": "star",
      "name": "bitbybit.occt.shapes.wire.createStarWire",
      "customName": "star wire",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "center": [
          0,
          9,
          0
        ],
        "direction": [
          0,
          1,
          0
        ],
        "numRays": 6,
        "outerRadius": 2.2,
        "innerRadius": 1.1,
        "offsetOuterEdges": 0,
        "half": false
      },
      "inputs": {},
      "position": [
        40,
        288
      ]
    },
    "toCast": {
      "id": "toCast",
      "name": "bitbybit.lists.createList",
      "customName": "create list",
      "async": false,
      "drawable": false,
      "data": {},
      "inputs": {
        "listElements": {
          "connections": [
            {
              "node": "star",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        460,
        40
      ]
    },
    "parallel": {
      "id": "parallel",
      "name": "bitbybit.occt.shapes.wire.projectWires",
      "customName": "project wires",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "direction": [
          0,
          -1,
          0
        ]
      },
      "inputs": {
        "wires": {
          "connections": [
            {
              "node": "toCast",
              "output": "list",
              "data": {}
            }
          ]
        },
        "shape": {
          "connections": [
            {
              "node": "ball",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        880,
        40
      ]
    },
    "parallelStar": {
      "id": "parallelStar",
      "name": "bitbybit.lists.getItem",
      "customName": "get item",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "index": 0,
        "clone": true
      },
      "inputs": {
        "list": {
          "connections": [
            {
              "node": "parallel",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1300,
        40
      ]
    },
    "fromLamp": {
      "id": "fromLamp",
      "name": "bitbybit.occt.shapes.wire.projectConical",
      "customName": "project conical",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "from": [
          0,
          14,
          0
        ]
      },
      "inputs": {
        "wire": {
          "connections": [
            {
              "node": "star",
              "output": "result",
              "data": {}
            }
          ]
        },
        "shape": {
          "connections": [
            {
              "node": "ball",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        460,
        280
      ]
    },
    "sun": {
      "id": "sun",
      "name": "bitbybit.draw.optionsOcctShape",
      "customName": "options occt shape",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "faceOpacity": 1,
        "edgeOpacity": 1,
        "edgeColour": "#ff6a00",
        "faceColour": "#ff0000",
        "vertexColour": "#ff00ff",
        "edgeWidth": 4,
        "edgeWidthBySize": false,
        "vertexSize": 0.03,
        "drawEdges": true,
        "drawFaces": true,
        "drawVertices": false,
        "precision": 0.01,
        "angularDeflection": 0.5,
        "relativeDeflection": false,
        "precisionShare": 0,
        "drawEdgeIndexes": false,
        "edgeIndexHeight": 0.06,
        "edgeIndexColour": "#ff00ff",
        "drawFaceIndexes": false,
        "faceIndexHeight": 0.06,
        "faceIndexColour": "#0000ff",
        "drawTwoSided": true,
        "backFaceColour": "#0000ff",
        "backFaceOpacity": 1,
        "edgeArrowSize": 0,
        "edgeArrowAngle": 15,
        "keepMeshData": false,
        "allowQualityDecrease": true,
        "forceFaceDeflection": false,
        "drawIsoCurves": false,
        "isoCurvesU": 5,
        "isoCurvesV": 5,
        "isoCurvesColour": "#808080",
        "surfaceAnalysis": "none",
        "draftDirection": [
          0,
          1,
          0
        ]
      },
      "inputs": {},
      "position": [
        40,
        766
      ]
    },
    "lamp": {
      "id": "lamp",
      "name": "bitbybit.draw.optionsOcctShape",
      "customName": "options occt shape",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "faceOpacity": 1,
        "edgeOpacity": 1,
        "edgeColour": "#2f7fff",
        "faceColour": "#ff0000",
        "vertexColour": "#ff00ff",
        "edgeWidth": 4,
        "edgeWidthBySize": false,
        "vertexSize": 0.03,
        "drawEdges": true,
        "drawFaces": true,
        "drawVertices": false,
        "precision": 0.01,
        "angularDeflection": 0.5,
        "relativeDeflection": false,
        "precisionShare": 0,
        "drawEdgeIndexes": false,
        "edgeIndexHeight": 0.06,
        "edgeIndexColour": "#ff00ff",
        "drawFaceIndexes": false,
        "faceIndexHeight": 0.06,
        "faceIndexColour": "#0000ff",
        "drawTwoSided": true,
        "backFaceColour": "#0000ff",
        "backFaceOpacity": 1,
        "edgeArrowSize": 0,
        "edgeArrowAngle": 15,
        "keepMeshData": false,
        "allowQualityDecrease": true,
        "forceFaceDeflection": false,
        "drawIsoCurves": false,
        "isoCurvesU": 5,
        "isoCurvesV": 5,
        "isoCurvesColour": "#808080",
        "surfaceAnalysis": "none",
        "draftDirection": [
          0,
          1,
          0
        ]
      },
      "inputs": {},
      "position": [
        40,
        2716
      ]
    },
    "drawBall": {
      "id": "drawBall",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "ball",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        40
      ]
    },
    "drawStar": {
      "id": "drawStar",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "star",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "sun",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        334
      ]
    },
    "drawParallel": {
      "id": "drawParallel",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "parallelStar",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "sun",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        628
      ]
    },
    "drawFromLamp": {
      "id": "drawFromLamp",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "fromLamp",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "lamp",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        922
      ]
    },
    "view": {
      "id": "view",
      "name": "bitbybit.babylon.scene.adjustActiveArcRotateCamera",
      "customName": "adjust active arc rotate camera",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "position": [
          10,
          30,
          -17
        ],
        "lookAt": [
          0,
          3,
          0
        ],
        "lowerBetaLimit": 1,
        "upperBetaLimit": 179,
        "angularSensibilityX": 1000,
        "angularSensibilityY": 1000,
        "maxZ": 1000,
        "panningSensibility": 1000,
        "wheelPrecision": 3
      },
      "inputs": {},
      "position": [
        1720,
        1216
      ]
    }
  },
  "modules": {}
}

Laying a face flat​

unroll goes the other way, from a plane, cylinder or cone face to the flat sheet it can be bent from, keeping lengths and areas. The result lies on the ground plane, ready for a DXF export. Doubly curved faces, such as a sphere's, have no flat pattern and are refused:

Bitbybit Platform

The pattern a cone is cut from in Rete

rete logoRete
Script Source (rete)
{
  "id": "rete-v2-json",
  "nodes": {
    "cone": {
      "id": "cone",
      "name": "bitbybit.occt.shapes.solid.createCone",
      "customName": "cone",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "radius1": 5,
        "radius2": 2.5,
        "height": 8,
        "angle": 360,
        "center": [
          0,
          0,
          0
        ],
        "direction": [
          0,
          1,
          0
        ]
      },
      "inputs": {},
      "position": [
        40,
        40
      ]
    },
    "drill": {
      "id": "drill",
      "name": "bitbybit.occt.shapes.solid.createCylinder",
      "customName": "cylinder",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "radius": 1,
        "height": 12,
        "center": [
          0,
          3,
          0
        ],
        "direction": [
          1,
          0,
          0
        ],
        "angle": 360,
        "originOnCenter": false
      },
      "inputs": {},
      "position": [
        40,
        472
      ]
    },
    "tools": {
      "id": "tools",
      "name": "bitbybit.lists.createList",
      "customName": "create list",
      "async": false,
      "drawable": false,
      "data": {},
      "inputs": {
        "listElements": {
          "connections": [
            {
              "node": "drill",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        460,
        40
      ]
    },
    "drilled": {
      "id": "drilled",
      "name": "bitbybit.occt.booleans.difference",
      "customName": "difference",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "keepEdges": false,
        "strategy": "oneAfterAnother"
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "cone",
              "output": "result",
              "data": {}
            }
          ]
        },
        "shapes": {
          "connections": [
            {
              "node": "tools",
              "output": "list",
              "data": {}
            }
          ]
        }
      },
      "position": [
        880,
        40
      ]
    },
    "sides": {
      "id": "sides",
      "name": "bitbybit.occt.select.faces.ofType",
      "customName": "faces of type",
      "async": true,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "type": "cone"
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "drilled",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1300,
        40
      ]
    },
    "sideIndex": {
      "id": "sideIndex",
      "name": "bitbybit.lists.getItem",
      "customName": "get item",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "index": 0,
        "clone": true
      },
      "inputs": {
        "list": {
          "connections": [
            {
              "node": "sides",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        1720,
        40
      ]
    },
    "side": {
      "id": "side",
      "name": "bitbybit.occt.shapes.face.getFace",
      "customName": "get face",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "index": 0
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "drilled",
              "output": "result",
              "data": {}
            }
          ]
        },
        "index": {
          "connections": [
            {
              "node": "sideIndex",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        2140,
        40
      ]
    },
    "pattern": {
      "id": "pattern",
      "name": "bitbybit.occt.shapes.face.unroll",
      "customName": "unroll",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "tolerance": 0.0001
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "side",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        2560,
        40
      ]
    },
    "beside": {
      "id": "beside",
      "name": "bitbybit.occt.transforms.translate",
      "customName": "translate",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": true,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "translation": [
          12,
          0,
          -8
        ]
      },
      "inputs": {
        "shape": {
          "connections": [
            {
              "node": "pattern",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        2980,
        40
      ]
    },
    "steel": {
      "id": "steel",
      "name": "bitbybit.draw.optionsOcctShape",
      "customName": "options occt shape",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "faceOpacity": 1,
        "edgeOpacity": 1,
        "edgeColour": "#5f6773",
        "faceColour": "#ffffff",
        "vertexColour": "#ff00ff",
        "edgeWidth": 2,
        "edgeWidthBySize": false,
        "vertexSize": 0.03,
        "drawEdges": true,
        "drawFaces": true,
        "drawVertices": false,
        "precision": 0.01,
        "angularDeflection": 0.5,
        "relativeDeflection": false,
        "precisionShare": 0,
        "drawEdgeIndexes": false,
        "edgeIndexHeight": 0.06,
        "edgeIndexColour": "#ff00ff",
        "drawFaceIndexes": false,
        "faceIndexHeight": 0.06,
        "faceIndexColour": "#0000ff",
        "drawTwoSided": true,
        "backFaceColour": "#ffffff",
        "backFaceOpacity": 1,
        "edgeArrowSize": 0,
        "edgeArrowAngle": 15,
        "keepMeshData": false,
        "allowQualityDecrease": true,
        "forceFaceDeflection": false,
        "drawIsoCurves": false,
        "isoCurvesU": 5,
        "isoCurvesV": 5,
        "isoCurvesColour": "#808080",
        "surfaceAnalysis": "none",
        "draftDirection": [
          0,
          1,
          0
        ]
      },
      "inputs": {},
      "position": [
        40,
        904
      ]
    },
    "drawDrilled": {
      "id": "drawDrilled",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "drilled",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "steel",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        3400,
        40
      ]
    },
    "drawBeside": {
      "id": "drawBeside",
      "name": "bitbybit.draw.drawAnyAsync",
      "customName": "draw any async",
      "async": true,
      "drawable": true,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        }
      },
      "inputs": {
        "entity": {
          "connections": [
            {
              "node": "beside",
              "output": "result",
              "data": {}
            }
          ]
        },
        "options": {
          "connections": [
            {
              "node": "steel",
              "output": "result",
              "data": {}
            }
          ]
        }
      },
      "position": [
        3400,
        334
      ]
    },
    "view": {
      "id": "view",
      "name": "bitbybit.babylon.scene.adjustActiveArcRotateCamera",
      "customName": "adjust active arc rotate camera",
      "async": false,
      "drawable": false,
      "data": {
        "genericNodeData": {
          "hide": false,
          "oneOnOne": false,
          "flatten": 0,
          "forceExecution": false
        },
        "position": [
          10,
          50,
          -42
        ],
        "lookAt": [
          10,
          0,
          -1
        ],
        "lowerBetaLimit": 1,
        "upperBetaLimit": 179,
        "angularSensibilityX": 1000,
        "angularSensibilityY": 1000,
        "maxZ": 1000,
        "panningSensibility": 1000,
        "wheelPrecision": 3
      },
      "inputs": {},
      "position": [
        3400,
        628
      ]
    }
  },
  "modules": {}
}