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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | 430x 430x 430x 430x 430x 430x | import macro from '@kitware/vtk.js/macros'; import vtkCellArray from '@kitware/vtk.js/Common/Core/CellArray'; import vtkDataArray from '@kitware/vtk.js/Common/Core/DataArray'; import vtkPolyData from '@kitware/vtk.js/Common/DataModel/PolyData'; const MAIN_FACES = [ 4, 0, 1, 2, 3, 4, 4, 5, 6, 7, 4, 8, 9, 10, 11, 4, 12, 13, 14, 15, 4, 16, 17, 18, 19, 4, 20, 21, 22, 23, ]; const CORNER_FACES = [ 3, 0, 16, 8, 3, 1, 9, 20, 3, 2, 23, 13, 3, 3, 12, 19, 3, 4, 17, 11, 3, 5, 10, 21, 3, 6, 14, 22, 3, 7, 18, 15, ]; const EDGE_FACES = [ 4, 0, 1, 9, 8, 4, 1, 2, 23, 20, 4, 2, 3, 12, 13, 4, 3, 0, 16, 19, 4, 4, 5, 10, 11, 4, 5, 6, 22, 21, 4, 6, 7, 15, 14, 4, 7, 4, 17, 18, 4, 8, 11, 17, 16, 4, 9, 20, 21, 10, 4, 13, 23, 22, 14, 4, 12, 19, 18, 15, ]; // Half-extent of the square main faces in geometry/model space (not pixels). const FACE_HALF_SIZE = 0.792; function vtkRhombicuboctahedronSource(publicAPI, model) { model.classHierarchy.push('vtkRhombicuboctahedronSource'); publicAPI.requestData = (inData, outData) => { const polyData = outData[0]?.initialize() || vtkPolyData.newInstance(); outData[0] = polyData; let scale = 1.0; if (model.scale !== undefined && model.scale !== null) { if (Array.isArray(model.scale)) { scale = model.scale[0] || 1.0; } else if (typeof model.scale === 'number') { scale = model.scale; } } const phi = 1.4; const vertices = []; vertices.push(-FACE_HALF_SIZE, -FACE_HALF_SIZE, -phi); vertices.push(FACE_HALF_SIZE, -FACE_HALF_SIZE, -phi); vertices.push(FACE_HALF_SIZE, FACE_HALF_SIZE, -phi); vertices.push(-FACE_HALF_SIZE, FACE_HALF_SIZE, -phi); vertices.push(-FACE_HALF_SIZE, -FACE_HALF_SIZE, phi); vertices.push(FACE_HALF_SIZE, -FACE_HALF_SIZE, phi); vertices.push(FACE_HALF_SIZE, FACE_HALF_SIZE, phi); vertices.push(-FACE_HALF_SIZE, FACE_HALF_SIZE, phi); vertices.push(-FACE_HALF_SIZE, -phi, -FACE_HALF_SIZE); vertices.push(FACE_HALF_SIZE, -phi, -FACE_HALF_SIZE); vertices.push(FACE_HALF_SIZE, -phi, FACE_HALF_SIZE); vertices.push(-FACE_HALF_SIZE, -phi, FACE_HALF_SIZE); vertices.push(-FACE_HALF_SIZE, phi, -FACE_HALF_SIZE); vertices.push(FACE_HALF_SIZE, phi, -FACE_HALF_SIZE); vertices.push(FACE_HALF_SIZE, phi, FACE_HALF_SIZE); vertices.push(-FACE_HALF_SIZE, phi, FACE_HALF_SIZE); vertices.push(-phi, -FACE_HALF_SIZE, -FACE_HALF_SIZE); vertices.push(-phi, -FACE_HALF_SIZE, FACE_HALF_SIZE); vertices.push(-phi, FACE_HALF_SIZE, FACE_HALF_SIZE); vertices.push(-phi, FACE_HALF_SIZE, -FACE_HALF_SIZE); vertices.push(phi, -FACE_HALF_SIZE, -FACE_HALF_SIZE); vertices.push(phi, -FACE_HALF_SIZE, FACE_HALF_SIZE); vertices.push(phi, FACE_HALF_SIZE, FACE_HALF_SIZE); vertices.push(phi, FACE_HALF_SIZE, -FACE_HALF_SIZE); let textureCoords = null; if (model.generate3DTextureCoordinates) { textureCoords = new Float64Array(24 * 3); for (let i = 0; i < 24; i++) { const vx = vertices[i * 3]; const vy = vertices[i * 3 + 1]; const vz = vertices[i * 3 + 2]; const len = Math.sqrt(vx * vx + vy * vy + vz * vz) || 1; textureCoords[i * 3] = vx / len; textureCoords[i * 3 + 1] = vy / len; textureCoords[i * 3 + 2] = vz / len; } } for (let i = 0; i < vertices.length; i++) { vertices[i] *= scale; } const vertexArray = Float64Array.from(vertices); polyData.getPoints().setData(vertexArray, 3); const normals = new Float64Array(24 * 3); for (let i = 0; i < 24; i++) { const x = vertexArray[i * 3]; const y = vertexArray[i * 3 + 1]; const z = vertexArray[i * 3 + 2]; const len = Math.sqrt(x * x + y * y + z * z); normals[i * 3] = x / len; normals[i * 3 + 1] = y / len; normals[i * 3 + 2] = z / len; } const normalArray = vtkDataArray.newInstance({ name: 'Normals', values: normals, numberOfComponents: 3, }); polyData.getPointData().setNormals(normalArray); if (textureCoords) { const tcoords = vtkDataArray.newInstance({ name: 'TextureCoordinates', values: textureCoords, numberOfComponents: 3, }); polyData.getPointData().setTCoords(tcoords); } const allFaces = []; if (model.generateMainFaces) { allFaces.push(...MAIN_FACES); } if (model.generateEdgeFaces) { allFaces.push(...EDGE_FACES); } if (model.generateCornerFaces) { allFaces.push(...CORNER_FACES); } if (allFaces.length > 0) { const polys = vtkCellArray.newInstance({ values: Uint16Array.from(allFaces), }); polyData.getPolys().deepCopy(polys); } else { polyData.getPolys().initialize(); } polyData.modified(); }; } const DEFAULT_VALUES = { scale: 1.0, generate3DTextureCoordinates: false, generateMainFaces: true, generateEdgeFaces: true, generateCornerFaces: true, }; export function extend(publicAPI, model, initialValues = {}) { Object.assign(model, DEFAULT_VALUES, initialValues); macro.obj(publicAPI, model); macro.setGet(publicAPI, model, [ 'scale', 'generate3DTextureCoordinates', 'generateMainFaces', 'generateEdgeFaces', 'generateCornerFaces', ]); macro.algo(publicAPI, model, 0, 1); vtkRhombicuboctahedronSource(publicAPI, model); } export const newInstance = macro.newInstance( extend, 'vtkRhombicuboctahedronSource' ); export default { newInstance, extend }; |